Server, program, information processing method, and terminal

Abstract

To provide a server including a control unit which controls transmission of content to a first terminal so that content associated with a reproduction time is displayed in a first terminal when sound information is reproduced to the set reproduction time by the first terminal, and to provide a program, an information processing method, and a terminal.SOLUTION: In each device processing, a control unit of a terminal 20A reproduces sound information according to an operation of a user A (A1). When the sound information is reproduced, the control unit sequentially transmits time information indicative of the reproduction position, for example, time which elapsed from the reproduction time, to the server (A2). When receiving the time information from the terminal 20A, a control unit of the server determines whether the sound information has been reproduced up to a prescribed reproduction time on the basis of the time information (B1). When the terminal 20A determines that the sound information has been reproduced up to the prescribed reproduction time (Yes in B1), the control unit transmits content so as to be displayed in the terminal 20A (B2). This causes the control unit of the terminal 20A to display the content in a display unit (A3).SELECTED DRAWING: Figure 7

Description

【Technical Field】 【0001】 The present disclosure relates to a server, a program, an information processing method, and a terminal. 【Background Art】 【0002】 In recent years, services that provide audio information such as news programs, language programs, or music so that it can be listened to on a terminal have been put into practical use. For example, Patent Document 1 discloses a server that provides audio information according to the preferences of a user of a terminal. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2007-66100 【Summary of the Invention】 【0004】 According to a first aspect of the present invention, there is provided a server that communicates with a first terminal that reproduces audio information, the server including a control unit that performs control to transmit content to the first terminal so that the content associated with the reproduction time is displayed on the first terminal when the reproduction reaches the reproduction time set by the first terminal for the audio information. According to a second aspect of the present invention, there is provided a program executed by a server that communicates with a first terminal that reproduces audio information, the server executing to transmit content to the first terminal so that the content associated with the reproduction time is displayed on the first terminal when the reproduction reaches the reproduction time set by the first terminal for the audio information. According to a third aspect of the present invention, there is provided an information processing method of a server that communicates with a first terminal that reproduces audio information, the method including transmitting content to the first terminal so that the content associated with the reproduction time is displayed on the first terminal when the reproduction reaches the reproduction time set by the first terminal for the audio information. According to a fourth aspect of the present invention, a program is executed by a terminal that plays sound information, wherein when the sound information has been played up to a set playback time, the terminal is responsible for receiving content from a server so as to display the content associated with the playback time. According to a fifth aspect of the present invention, an information processing method for a terminal that plays sound information includes receiving content from a server so as to display content associated with a set playback time when the sound information has been played up to a set playback time. According to a sixth aspect of the present invention, a terminal for playing sound information includes a control unit that controls the reception of content from a server so as to display content associated with a set playback time when the sound information has been played up to the set playback time. According to a sixth aspect of the present invention, a server that communicates with a terminal that plays sound information includes a control unit that, when a first content is associated with sound information, performs control to transmit a second content to the terminal when the sound information has been played by the terminal up to the playback time associated with the first content. According to a seventh aspect of the present invention, a program is executed by a server that communicates with a terminal that plays sound information, wherein when a first content is associated with sound information, and the sound information has been played by the terminal up to the playback time associated with the first content, the server executes the operation of sending a second content to the terminal. According to an eighth aspect of the present invention, an information processing method for a server communicating with a terminal that plays sound information includes transmitting a second content to the terminal when a first content is associated with the sound information and the sound information has been played by the terminal up to the playback time associated with the first content. According to a ninth aspect of the present invention, a program is executed by a terminal that plays sound information, wherein when a first content is associated with recorded sound information, the terminal plays the sound information up to the playback time associated with the first content, and the terminal then receives a second content from a server. According to a tenth aspect of the present invention, an information processing method for a terminal that plays sound information includes, when a first content is associated with the sound information, receiving a second content from a server when the terminal has played the sound information up to the playback time associated with the first content. According to an eleventh aspect of the present invention, a terminal for playing sound information includes a control unit that, when a first content is associated with the sound information, controls the terminal to receive a second content from a server when the sound information has been played up to the playback time associated with the first content. [Brief explanation of the drawing] 【0005】 [Figure 1] A diagram showing an example of the system configuration in one embodiment. [Figure 2] A diagram showing an example of a function realized by the storage unit of the server according to the first embodiment. [Figure 3] A diagram showing an example of content associated with sound information. [Figure 4] A diagram showing an example of a function realized by the control unit of the server according to the first embodiment. [Figure 5] A diagram showing an example of a function realized by the storage unit of the terminal according to the first embodiment. [Figure 6] A diagram showing an example of a function realized by the control unit of the terminal according to the first embodiment. [Figure 7] A flowchart showing an example of the processing flow performed by each device according to the first embodiment. [Figure 8] A diagram showing an example of how to display content. [Figure 9] A diagram showing an example of how to display content in the first modified example (1). [Figure 10] A diagram showing an example of how to display content in the first modified example (2). [Figure 11] A diagram showing an example of how to display content in the first modified example (3). [Figure 12] A flowchart showing an example of the processing flow performed by each device relating to the first modified example (4). [Figure 13] A flowchart showing an example of the process flow executed by each device according to the second embodiment. [Figure 14] A diagram showing an example of transmitting content and first information in the second embodiment. [Figure 15] A flowchart showing an example of the process flow executed by each device according to the second modification example (1). [Figure 16] A diagram showing an example of transmitting content and first information in the second modification example (1). [Figure 17] A flowchart showing an example of the process flow executed by each device according to the second embodiment. [Figure 18] A diagram showing an example of attribute information. [Figure 19] A diagram showing an example of transmitting content based on attribute information in the third embodiment. [Figure 20] A diagram showing an example of transmitting content based on attribute information in the third modification example (1). [Figure 21] A flowchart showing an example of the process flow executed by each device according to the fourth embodiment. [Figure 22] A diagram showing an example of requesting the stop of content transmission. [Figure 23] A flowchart showing an example of the process flow executed by each device according to the fifth embodiment. [Figure 24] A diagram showing an example of transmitting a playback request from a chat room in the fifth embodiment. [Figure 25] A diagram showing an example of transmitting a playback request from a chat room in a modification example of the fifth embodiment. [Figure 26] A flowchart showing an example of the process flow executed by each device according to the sixth embodiment. [Figure 27] A diagram showing an example of displaying playback information of audio information and display information of content in a chat room. [Figure 28] A diagram showing an example of displaying information on the playback time in a chat room. [Figure 29]A flowchart showing an example of the processing flow executed by each device according to the sixth modification (1). [Figure 30] A diagram showing an example of changing the display mode so that the visibility of the display information of the content changes. [Figure 31] A diagram showing an example of counting down from a predetermined time before the playback time. [Figure 32] A flowchart showing an example of the processing flow executed by each device according to the seventh embodiment. [Figure 33] A diagram showing an example of an automatic setting request. [Figure 34] A diagram showing an example of displaying a message site in the seventh embodiment. [Figure 35] A diagram showing an example of displaying a message site in the seventh modification (1). [Figure 36] A diagram showing an example of dividing audio information into a plurality of sections in the seventh modification (2). [Figure 37] A diagram showing an example of displaying content including a content list on a terminal. [Figure 38] A diagram showing an example of dividing audio information into a plurality of sections in the seventh modification (3). [Figure 39] A flowchart showing an example of the processing flow executed by each device according to the eighth embodiment. [Figure 40] A diagram showing an example of transmitting second content in the eighth embodiment. [Figure 41] A diagram showing an example of associating content with a plurality of sections of audio information in the eighth modification (1). [Figure 42] A diagram showing an example of transmitting second content in the eighth modification (1). [Figure 43] A diagram showing an example of associating content with a plurality of sections of audio information in the eighth modification (2). [Figure 44] A diagram showing an example of integrally displaying a plurality of contents. [Figure 45] A diagram showing an example of changing the display mode of content acquired in the past according to a search. [Figure 46]This diagram illustrates an example of displaying content by referencing previously retrieved content based on search results. [Figure 47] A diagram illustrating an example of content sharing among users. [Figure 48] A diagram illustrating an example of content being password protected. [Figure 49] A diagram showing an example of a function realized by the storage unit of the server according to the 13th embodiment. [Figure 50] A diagram showing an example of first and second content associated with sound information. [Figure 51] A diagram showing an example of a function realized by the control unit of the server according to the 13th embodiment. [Figure 52] A diagram showing an example of a function realized by the storage unit of the terminal according to the first embodiment. [Figure 53] A diagram showing an example of a function realized by the control unit of the terminal according to the first embodiment. [Figure 54] A flowchart showing an example of the processing flow performed by each device according to the 13th embodiment. [Figure 55] A diagram showing an example of displaying the first content on a device. [Figure 56] A flowchart showing an example of the processing flow performed by each device relating to the 13th modified example (1). [Figure 57] A diagram illustrating an example of displaying a change notification in a chat room. [Figure 58] A diagram illustrating an example of displaying the first content and correction notification in the chat room. [Figure 59] This diagram shows an example of deleting the third content and displaying the first content. [Figure 60] A flowchart showing an example of the processing flow performed by each device according to the 15th embodiment. [Figure 61] This diagram shows an example of displaying the second content by referencing the third content. [Figure 62] A flowchart showing an example of the processing flow performed by each device according to the 16th embodiment. [Figure 63]This diagram illustrates an example of setting a retention period for tickets during their sales period. [Figure 64] This diagram shows an example of displaying the first content when the maintenance period has not expired. [Figure 65] This figure shows an example of displaying an termination notice when the maintenance period has expired in the 16th modified example (1). [Figure 66] A flowchart showing an example of the processing flow performed by each device relating to the 16th modified example (2). [Figure 67] This diagram illustrates an example of setting a start date for the ticket sales period. [Figure 68] This diagram shows an example of how to display a notification when the maintenance period has expired. [Figure 69] This diagram shows an example of how to display a progress notification when the start deadline has passed. [Figure 70] A flowchart showing an example of the processing flow performed by each device according to the 17th embodiment. [Figure 71] A diagram illustrating an example of displaying the first content by referencing the third content. [Figure 72] A diagram illustrating an example of displaying the first content by referencing the fourth content, which is based on the third content. [Figure 73] A diagram illustrating an example of displaying the first content in response to the third content. [Modes for carrying out the invention] 【0006】 <Compliance with legal matters> Please note that the disclosures described herein are subject to compliance with the laws of the implementing country, including the confidentiality of communications, which are necessary for the implementation of these disclosures. 【0007】 Embodiments for implementing the server, program, information processing method, and terminal related to this disclosure will be described with reference to the drawings. 【0008】 [System Configuration] Figure 1 shows the configuration of a system 1 equipped with a server according to one embodiment of the present disclosure. As disclosed in Figure 1, in system 1, the server 10 and terminals 20 (terminals 20A, 20B, and 20C) are connected via a network 30. The server 10 provides a service to the terminals 20 owned by the user via the network 30 that enables the sending and receiving of messages between terminals 20. The number of terminals 20 connected to the network 30 is not limited. 【0009】 Network 30 plays the role of connecting one or more terminals 20 with one or more servers 10. In other words, network 30 refers to a communication network that provides a connection path so that terminals 20 can send and receive data after connecting to servers 10. 【0010】 One or more parts of network 30 may or may not be wired or wireless networks. Network 30 may include, but is not limited to, an ad hoc network, an intranet, an extranet, a virtual private network (VPN), a local area network (LAN), a wireless LAN (WLAN), a wide area network (WAN), a wireless WAN (WWAN), a metropolitan area network (MAN), part of the internet, part of a public switched telephone network (PSTN), a mobile phone network, ISDN (integrated service digital networks), wireless LAN, LTE (long term evolution), CDMA (code division multiple access), Bluetooth (registered trademark), satellite communications, or two or more combinations thereof. Network 30 may include one or more networks 30. 【0011】 Terminal 20 (Terminal 20A, Terminal 20B, Terminal 20C) can be any information processing terminal capable of realizing the functions described in each embodiment. Terminal 20 includes, but is not limited to, smartphones, mobile phones (feature phones), computers (but is not limited to, for example, desktops, laptops, tablets, etc.), media computer platforms (but is not limited to, for example, cable, satellite set-top boxes, digital video recorders), handheld computer devices (but is not limited to, for example, PDAs (personal digital assistants), email clients, etc.), wearable devices (glasses-type devices, watch-type devices, etc.), or other types of computers or communication platforms. Terminal 20 may also be referred to as an information processing terminal. 【0012】 Since the configurations of terminals 20A, 20B, and 20C are basically the same, the following explanation will focus on terminal 20. Furthermore, where necessary, the terminal used by user X will be referred to as terminal 20X, and user information associated with user X or terminal 20X in a given service will be referred to as user information X. User information refers to user information associated with the account used by the user in a given service. User information includes, but is not limited to, information associated with the user, such as the user's name, user icon image, user's age, user's gender, user's address, user's hobbies and preferences, and user identifier, which are entered by the user or assigned by the given service. It may include any one of these, a combination thereof, or not. 【0013】 Server 10 has the function of providing predetermined services to terminal 20. Server 10 may be any information processing device capable of realizing the functions described in each embodiment. Server 10 includes, but is not limited to, a server device, a computer (for example, a desktop, laptop, tablet, etc.), a media computer platform (for example, a cable, satellite set-top box, digital video recorder, etc.), a handheld computer device (for example, a PDA, email client, etc.), or other types of computers or communication platforms. Server 10 may also be referred to as an information processing device. If it is not necessary to distinguish between Server 10 and terminal 20, Server 10 and terminal 20 may or may not be referred to as information processing devices. 【0014】 [Hardware configuration of each device] The hardware configuration of each device included in System 1 will be explained using Figure 1. 【0015】 (1) Hardware configuration of terminal 20 Terminal 20 comprises a control unit 21 (CPU: central processing unit), a storage unit 28, a communication unit 22, an input / output unit 23, a display unit 24, a microphone 25, a speaker 26, and a camera 27. The hardware components of terminal 20 are interconnected via bus B, not limited to but as an example. It is not mandatory for terminal 20's hardware configuration to include all components. For example, terminal 20 may have a configuration in which individual components, or multiple components, such as the microphone 25 and camera 27, are removed, or it may not. 【0016】 The communication unit 22 transmits and receives various types of data via the network 30. This communication may be performed via wired or wireless connection, and any communication protocol may be used as long as communication between the two units is possible. The communication unit 22 has the function of communicating with the server 10 via the network 30. The communication unit 22 transmits various types of data to the server 10 according to instructions from the control unit 21. The communication unit 22 also receives various types of data transmitted from the server 10 and transmits them to the control unit 21. The communication unit 22 may also be simply referred to as the communication unit. Furthermore, if the communication unit 22 is composed of a physically structured circuit, it may also be referred to as the communication circuit. 【0017】 The input / output unit 23 includes a device for inputting various operations to the terminal 20, and a device for outputting the processing results processed by the terminal 20. The input / output unit 23 may have an integrated input unit and an output unit, or it may have separate input and output units, or it may not have been integrated. 【0018】 The input unit is implemented by any or any combination of any type of device capable of receiving input from the user and transmitting the information related to said input to the control unit 21. The input unit includes, but is not limited to, hardware keys such as touch panels, touch displays, and keyboards, pointing devices such as mice, cameras (operation input via video), and microphones (operation input via voice). 【0019】 The output unit is implemented by any or a combination of any type of device capable of outputting the processing results processed by the control unit 21. The output unit includes, but is not limited to, touch panels, touch displays, speakers (for audio output), lenses (for, but is not limited to, 3D (three-dimensional) output or hologram output), printers, and the like. 【0020】 The display unit 24 is implemented by any or a combination of any type of device capable of displaying data according to the display data written to the frame buffer. The display unit 24 includes, but is not limited to, touch panels, touch displays, monitors (including, but is not limited to, liquid crystal displays and OLEDs (organic electroluminescence displays)), head-mounted displays (HMDs), projection mapping, holograms, and devices capable of displaying images, text information, etc., in air (which may or may not be a vacuum). These display units 24 may or may not be capable of displaying display data in 3D. 【0021】 If the input / output unit 23 is a touch panel, the input / output unit 23 and the display unit 24 may be arranged facing each other and have substantially the same size and shape. 【0022】 The control unit 21 has physically structured circuitry to perform functions realized by code or instructions contained within the program, and is implemented, but is not limited to, by a data processing device built into the hardware. Therefore, the control unit 21 may or may not be described as a control circuit. 【0023】 The control unit 21 includes, but is not limited to, a central processing unit (CPU), a microprocessor, a processor core, a multiprocessor, an ASIC (application-specific integrated circuit), and an FPGA (field programmable gate array). 【0024】 The storage unit 28 has the function of storing various programs and data necessary for the operation of the terminal 20. The storage unit 28 includes, but is not limited to, various storage media such as HDD (hard disk drive), SSD (solid state drive), flash memory, RAM (random access memory), and ROM (read-only memory). The storage unit 28 may or may not be referred to as memory. 【0025】 Terminal 20 stores a program in the storage unit 28, and by executing this program, the control unit 21 performs the processing of each part included in the control unit 21. In other words, the program stored in the storage unit 28 enables terminal 20 to implement each function that the control unit 21 performs. Furthermore, this program may or may not be described as a program module. 【0026】 Microphone 25 is used for inputting audio data. Speaker 26 is used for outputting audio data. Camera 27 is used for acquiring video data. 【0027】 (2) Server hardware configuration Server 10 comprises a control unit 11 (CPU), a storage unit 15, a communication unit 14, an input / output unit 12, and a display 13. The hardware components of Server 10 are interconnected via bus B, not as an example but as an example. It is not mandatory for Server 10's hardware configuration to include all components. For example, Server 10's hardware may or may not include the display 13. 【0028】 The control unit 11 has physically structured circuitry to perform functions realized by code or instructions contained within the program, and is implemented, not limited to but for example, by a data processing device built into the hardware. 【0029】 The control unit 11 is typically a central processing unit (CPU), but may also be a microprocessor, processor core, multiprocessor, ASIC, FPGA, or otherwise. In this disclosure, the control unit 11 is not limited to these. 【0030】 The storage unit 15 has the function of storing various programs and data necessary for the operation of the server 10. The storage unit 15 is implemented using various storage media such as HDDs, SSDs, and flash memory. However, in this disclosure, the storage unit 15 is not limited to these. Also, the storage unit 15 may or may not be referred to as memory. 【0031】 The communication unit 14 transmits and receives various types of data via the network 30. This communication may be performed via wired or wireless connection, and any communication protocol may be used as long as communication between the units is possible. The communication unit 14 has the function of communicating with the terminal 20 via the network 30. The communication unit 14 transmits various types of data to the terminal 20 according to instructions from the control unit 11. The communication unit 14 also receives various types of data transmitted from the terminal 20 and transmits them to the control unit 11. The communication unit 14 may also be simply referred to as the communication unit. Furthermore, if the communication unit 14 is composed of a physically structured circuit, it may also be referred to as the communication circuit. 【0032】 The input / output unit 12 is implemented by a device that inputs various operations to the server 10. The input / output unit 12 is implemented by any or a combination of any type of device that can receive input from a user and transmit information related to said input to the control unit 11. The input / output unit 12 is typically implemented by hardware keys such as a keyboard or a pointing device such as a mouse. The input / output unit 12 is not limited to these and may include, for example, a touch panel, a camera (operation input via video), or a microphone (operation input via voice). However, in this disclosure, the input / output unit 12 is not limited to these. 【0033】 The display 13 is typically implemented as a monitor (but is not limited to, examples include a liquid crystal display or an OLED (organic electroluminescence display)). The display 13 may also be a head-mounted display (HMD) or not. These displays 13 may or may not be capable of displaying data in 3D. In this disclosure, the display 13 is not limited to these. Server 10 stores the program in the storage unit 15, and by executing this program, the control unit 11 performs the processing of each part included in the control unit 11. In other words, the program stored in the storage unit 15 enables Server 10 to implement each function that the control unit 11 performs. This program may or may not be described as a program module. 【0034】 Each embodiment of this disclosure is described as being achieved by the CPU of terminal 20 and / or server 10 executing a program. 【0035】 Furthermore, the control unit 21 of terminal 20 and / or the control unit 11 of server 10 may implement each process not only with a CPU having a control circuit, but also with logic circuits (hardware) or dedicated circuits formed on an integrated circuit (IC (Integrated Circuit) chip, LSI (Large Scale Integration)), etc., or they may not. Also, these circuits may be implemented by one or more integrated circuits, and the multiple processes shown in each embodiment may be implemented by a single integrated circuit, or they may not. In addition, LSIs are sometimes called VLSI, Super LSI, Ultra LSI, etc., depending on the degree of integration. Therefore, the control units 21 and / or 11 may or may not be described as control circuits. 【0036】 Furthermore, the programs of each embodiment of the present disclosure (for example, not limited to, software programs, computer programs, or program modules) may or may not be provided stored on a computer-readable storage medium. The storage medium is a “tangible medium that is not temporary” on which programs can be stored. Also, the programs may or may not be for the purpose of implementing some of the functions of each embodiment of the present disclosure. Furthermore, the programs may or may not be so-called differential files (differential programs) that can implement the functions of each embodiment of the present disclosure in combination with programs already recorded on the storage medium. 【0037】 The storage medium may include one or more semiconductor-based or other integrated circuits (ICs) (for example, but not limited to, field-programmable gate arrays (FPGAs) or application-specific integrated circuits (ASICs)), hard disk drives (HDDs), hybrid hard drives (HHDs), optical disks, optical disk drives (ODDs), magneto-optical disks, magneto-optical drives, floppy diskettes, floppy disk drives (FDDs), magnetic tapes, solid-state drives (SSDs), RAM drives, secure digital cards, or drives, any other suitable storage medium, or any two or more suitable combinations thereof. The storage medium may be volatile, non-volatile, or a combination of volatile and non-volatile, where appropriate. The storage medium is not limited to these examples and may be any device or medium capable of storing a program. The storage medium may or may not be referred to as memory. 【0038】 The server 10 and / or terminal 20 can realize the functions of the multiple functional units shown in each embodiment by reading programs stored on a storage medium and executing the read programs. 【0039】 Furthermore, the program of this disclosure may or may not be provided to the server 10 and / or terminal 20 via any transmission medium capable of transmitting the program (such as a communication network or broadcast waves). The server 10 and / or terminal 20 realize the functions of the multiple functional units shown in each embodiment by executing the program downloaded via the Internet or the like, for example, without limit. 【0040】 Furthermore, each embodiment of this disclosure can also be realized in the form of a data signal embedded in a carrier wave, in which the program is embodied by electronic transmission. At least part of the processing on server 10 and / or terminal 20 may or may not be implemented by cloud computing consisting of one or more computers. The configuration may or may not involve the server 10 performing at least a portion of the processing on terminal 20. In this case, the configuration may or may not involve the server 10 performing at least a portion of the processing of each functional unit of the control unit 21 of terminal 20. The configuration may or may not involve the terminal 20 performing at least a portion of the processing on the server 10. In this case, the configuration may or may not involve the terminal 20 performing at least a portion of the processing of each functional unit of the control unit 11 of the server 10. Unless otherwise explicitly stated, the configuration of the determination in the embodiments of this disclosure is not mandatory, and a predetermined process may be performed if the determination condition is met, or if the determination condition is not met, or not. 【0041】 The programs disclosed herein may be implemented using, but are not limited to, scripting languages ​​such as ActionScript and JavaScript®, object-oriented programming languages ​​such as Objective-C and Java®, and markup languages ​​such as HTML5. 【0042】 Furthermore, and to reiterate, the various programs and data in this disclosure can be stored (recorded) on a computer-readable storage medium (recording medium). This storage medium includes various types of storage media such as magnetic disks, optical disks, magneto-optical disks, and flash memory. 【0043】 <First Embodiment> The first embodiment is one in which, when sound information is played by terminal 20A until a predetermined playback time, the control unit 11 of server 10 transmits content associated with the playback time, such as link information to a site related to the sound information, to terminal 20A. The contents described in the first embodiment are applicable to any of the other embodiments. 【0044】 <Functional Configuration> (1) Server Functional Configuration 【0045】 Figure 2 shows an example of information stored in the storage unit 15 of the server 10 in this embodiment. The memory unit 15 stores, for example, a server main processing program 151 that is read by the control unit 11 and executed as the server main processing. 【0046】 Furthermore, the server main processing program 151 includes, as an example and not an exhaustive, a receiving processing program 1511 as a subroutine program, which is read by the control unit 11 and executed as time information receiving processing. 【0047】 Furthermore, the server main processing program 151 includes, as an example and not an exhaustive, a transmission processing program 1512 as a subroutine program, which is read by the control unit 11 and executed as content transmission processing. 【0048】 Furthermore, the memory unit 15 stores, as an example and not limited to, content 152. 【0049】 Content 152 is associated with a predetermined playback time of the sound information and is transmitted from the server 10 to the terminal 20A so as to be displayed on the terminal 20A when the sound information has been played by the terminal 20A up to the predetermined playback time. Content 152 may consist of, for example, the portion of the sound information corresponding to the predetermined playback time. For example, Content 152 may consist of link information to a related site (for example, a website URL (Uniform Resource Locator), URI (Uniform Resource Identifier)) related to the portion of the sound information corresponding to the predetermined playback time, or it may not. Content 152 may also consist of, or it may not consist of, image information or video information related to the portion of the sound information corresponding to the predetermined playback time. Content 152 may also consist of, or it may not consist of, the portion of the sound information corresponding to the predetermined playback time converted into text information. 【0050】 Furthermore, sound information is information that includes sound, and may consist of, for example, voice information or music information. Also, sound information may include, or may not include, information other than sound, such as video information that includes both sound and video information. Here, sound information may be recorded and posted to server 10, or it may be distributed from server 10 in real time. Examples of sound information posted to or distributed to server 10 include voice information that provides news programs or language learning programs in audio format, and music information that provides music. Sound information may be played, for example, on a sound information site such as a podcast, or on an application stored on terminal 20A. 【0051】 Furthermore, the playback time is information indicating the playback position of the sound information, and may consist, for example, of the time elapsed since the start of playback of the sound information. 【0052】 Figure 3 shows an example of associating content 152 with a predetermined playback time 154 of sound information 153. Here, for sound information A, URL1 is associated as content 152 with a playback time 154 of 30 minutes. Also, for sound information B, content 152 is associated with each of several playback times 154, such as 15 minutes, 30 minutes, and 45 minutes. Here, multiple content 152 of URL3 and image 1 may be associated with a single playback time 154, such as the 30-minute playback time 154. Also, for sound information C, content 152 of text information 1 is associated with a playback time 154 of 10 minutes, and content 152 of text information 2 is associated with a playback time 154 of 30 minutes. 【0053】 Figure 4 shows an example of a function realized by the control unit 11 of the server 10 in this embodiment. The control unit 11 includes, but is not limited to, a server main processing unit 111, a receiving processing unit 112, and a transmitting processing unit 113. 【0054】 The server main processing unit 111 has the function of executing server main processing, which is processing for comprehensively controlling the server 10, according to the server main processing program 151 stored in the storage unit 15. 【0055】 The receiving processing unit 112 executes a time information receiving process in which the communication unit 14 receives time information from the terminal 20, according to the receiving processing program 1511 stored in the storage unit 15. 【0056】 The transmission processing unit 113 performs a content transmission process to send content 152 to terminal 20 so that when sound information 153 is played by terminal 20A up to a predetermined playback time 154, content 152 associated with that playback time 154 is displayed on terminal 20A. 【0057】 (2) Terminal Functional Configuration 【0058】 Figure 5 shows an example of information stored in the memory unit 28 of terminal 20A in this embodiment. The memory unit 28 stores, for example, a terminal main processing program 281 that is read by the control unit 21 and executed as the terminal main processing. 【0059】 Furthermore, the terminal main processing program 281 includes, as an example and not an exhaustive, a playback processing program 2811 as a subroutine program, which is read by the control unit 21 and executed as sound information playback processing. 【0060】 Furthermore, the terminal main processing program 281 includes, as an example (not limited to), a reception processing program 2812, which is read by the control unit 21 and executed as content reception processing, as a subroutine program. 【0061】 Figure 6 shows an example of a function realized by the control unit 21 of terminal 20A in this embodiment. The control unit 21 includes, but is not limited to, a terminal main processing unit 211, a playback processing unit 212, and a reception processing unit 213. 【0062】 The terminal main processing unit 211 has the function of executing terminal main processing, which is processing for comprehensively controlling the terminal 20A, according to the terminal main processing program 281 stored in the storage unit 28. 【0063】 The playback processing unit 212 performs sound information playback processing to play back the sound information 153 according to the playback processing program 2811 stored in the storage unit 28. 【0064】 The receiving processing unit 213 executes content receiving processing to receive content 152 from the server 10 so as to display content 152 associated with a predetermined playback time 154 when the sound information 153 has been played up to that playback time 154. 【0065】 <Information Processing> Figure 7 is a flowchart showing an example of the processing flow performed by each device in this embodiment. From left to right, it shows an example of the processing performed by the control unit 21 of terminal 20A and an example of the processing performed by the control unit 11 of server 10, respectively. 【0066】 In this embodiment, terminal 20A is comprised of the first terminal of user A that plays the sound information 153. Furthermore, server 10 is comprised of a server that manages the sound information site that provides the sound information 153. 【0067】 Each step in each process is indicated by a combination of uppercase letters and numbers, and the term "step" is omitted in this specification. Furthermore, the flowchart described below is merely an example of the process in this embodiment, and some steps in the flowchart described below may be omitted, or additional steps may be inserted. These also apply to other flowcharts in this specification. 【0068】 First, the control unit 21 of terminal 20A plays sound information 153 in response to user A's operation (A1). For example, as shown in Figure 8A, user A may display a sound information site on terminal 20A and play the desired sound information 153 from among the multiple sound information 153, 153a and 153b provided on that sound information site. For example, the control unit 21 of terminal 20A may play sound information 153 when user A inputs the play button 2 for sound information 153. The control unit 21 of terminal 20A may also play sound information 153 by so-called streaming distribution, for example, by receiving sound information 153 from server 10 and playing it at the same time. Alternatively, the control unit 21 of terminal 20A may play sound information 153 that has already been downloaded from server 10. 【0069】 When sound information 153 is played, the control unit 21 of terminal 20A sequentially transmits time information indicating the playback position, for example, the time elapsed since the start of playback, to the server 10 (A2). Here, it is assumed that content 152 is pre-associated with a predetermined playback time 154 for the sound information 153. For example, content 152 may be associated with a predetermined playback time 154 by a provider (e.g., user B) that provides sound information 153 to the sound information site. Alternatively, content 152 may be automatically associated with a playback time 154 selected by the server 10 that manages the sound information site, based on the content of sound information 153 or the content of content 152. 【0070】 In this case, content 152 may include information related to the portion of the sound information 153 corresponding to playback time 154. For example, consider a case where user B, who provides the sound information 153, wants to supplement or explain the content played at playback time 154. If user B provides the topic of a Takarazuka Revue performance at playback time 154, user B may associate content 152 that supplements this portion, for example, content 152 containing link information to related websites introducing Takarazuka Revue performances, with playback time 154. Note that content 152 may or may not include information related to the content played immediately before playback time 154. Also, content 152 may or may not include information related to the content played immediately after playback time 154. 【0071】 Next, when the control unit 11 of the server 10 receives time information from the terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played up to a predetermined playback time 154 (B1). The control unit 11 of the server 10 repeats the determination in step B1 until it determines that the sound information 153 has been played up to the predetermined playback time 154. Then, when the control unit 11 of the server 10 determines that the sound information 153 has been played up to the predetermined playback time 154 by the terminal 20A, it transmits the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the content 152 on the display unit 24 (A3). 【0072】 For example, the control unit 11 of the server 10 may display content 152, including a URL 1 for a related website introducing Takarazuka Revue performances, in the chat room CR shared with user A, as shown in Figure 8B. The content 152 may also further include a notification 3 regarding URL 1, such as a notification explaining how to send URL 1. 【0073】 Here, content 152 is displayed in chat room CR. In this chat room CR, each time user A plays sound information 153, multiple contents 152 associated with that sound information 153 are displayed over time. As a result, the contents 152 of multiple sound information 153 are aggregated in chat room CR, so user A can search for content 152 of sound information 153 that they have played in the past by browsing chat room CR. Note that chat room CR (which may be called by other names such as talk room) is a place where users (including corporate servers) are associated with each other via server 10 or a service (for example, a messaging service provided by an application without going through a server), and where content is exchanged between those users, and may include a user interface. Also, chat room CR may be displayed on an application stored on terminal 20A, for example, or on a website. 【0074】 In this embodiment, the control unit 21 of terminal 20A sequentially transmits the time information of the sound information 153 to the server 10 in step A2, but it is sufficient for the server 10 to be able to grasp the time information of the sound information 153, and is not limited to this. For example, the control unit 21 of terminal 20A may transmit the playback time and stop time of the sound information 153 to the server 10 based on the input operation to the play button 2. As a result, the control unit 11 of server 10 can grasp the time information of the sound information 153 based on the playback time and stop time of the sound information 153. 【0075】 Furthermore, if the control unit 11 of the server 10 is aware of the playback time of the sound information 153, the control unit 21 of the terminal 20A does not need to send the time information of the sound information 153 to the server 10 by omitting step A2. For example, when the control unit 21 plays the sound information 153 via streaming, the control unit 11 of the server 10 is aware of the playback time according to the distribution of the sound information 153, so step A2 may be omitted. 【0076】 Furthermore, in this embodiment, the content 152 is displayed in the chat room CR, but it is not limited to being displayed on terminal 20A. For example, the content 152 may be sent to terminal 20A's email, a site providing sound information 153, or an application that plays sound information 153. 【0077】 <Effects of the First Embodiment> In the first embodiment, the server 10 includes a control unit 11 that controls the transmission of content 152 to the terminal 20A so that when the sound information 153 has been played by the terminal 20A up to the set playback time 154, the content 152 associated with the playback time 154 is displayed to the terminal 20A. As an example of the effects of this configuration, user A can easily retrieve content 152 associated with playback time 154. 【0078】 Furthermore, in the first embodiment, the content 152 includes information related to the portion of the sound information 153 corresponding to the playback time 154. As an example of the effects of this configuration, user A can easily obtain information related to the sound information 153. For example, if user A finds any information of interest, information they want to know, or information that is unclear in the sound information 153, they can easily obtain this information via content 152, thereby improving the communication of information between user A and the provider of the sound information 153. 【0079】 Furthermore, in the first embodiment, the control unit 11 of the server 10 performs control to transmit content 152 to terminal 20A when sound information 153 has been played by terminal 20A up to the set playback time 154. As an example of the effects of this configuration, the control unit 21 of terminal 20A can easily display the content 152. 【0080】 In the first embodiment, content 152 is displayed in the chat room CR. As an example of the effects of this configuration, user A can easily view content 152. For example, in chat room CR, multiple contents are aggregated over time in response to the playback of sound information 153, making it easy to search for the desired content 152. 【0081】 In addition, in the first embodiment, content 152 includes link information. As an example of the effects of this configuration, user A can easily grasp the information associated with sound information 153. 【0082】 <First variation (1)> In the first embodiment, the content 152 consisted of website link information, but is not limited thereto. 【0083】 The first modification (1) is a modification in which content 152 includes image information related to the portion of sound information 153 corresponding to playback time 154. 【0084】 First, similar to the first embodiment, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it transmits the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed to the terminal 20A (B2). Here, the content 152 may include image information related to the portion of the sound information 153 corresponding to the predetermined playback time 154. 【0085】 For example, consider a case where user A plays the sound information 153a shown in Figure 8A up to a predetermined playback time 154. In this sound information 153a, the topic of bonsai is played at the predetermined playback time 154. In this case, user B, who provides the sound information 153a, may associate content 152, which includes image information of bonsai, with the predetermined playback time 154 of the sound information 153a. 【0086】 As a result, the control unit 21 of terminal 20A displays content 152, which includes image information of a bonsai tree related to the playback time 154 in the sound information 153a, on the display unit 24, as shown in Figure 9 (A3). 【0087】 In the first modified example (1), content 152 is configured to include image information, but is not limited to this. For example, content 152 may be configured to include video information related to the portion of the audio information 153a corresponding to playback time 154. Alternatively, content 152 may be configured to include text information obtained by converting the portion of the audio information 153a corresponding to playback time 154 into text. For example, if the topic "Beautiful flowers have bloomed on the bonsai tree at home" is played in the portion of the audio information 153a corresponding to playback time 154, content 152 may be configured to include text information obtained by converting that topic into text. 【0088】 <Effects of the first modified example (1)> In the first variant (1), content 152 includes image information. As an example of the effects of this configuration, user A can easily grasp the information associated with the sound information 153a. 【0089】 Furthermore, in the first variant (1), content 152 includes textual information. As an example of the effects of this configuration, user A can easily grasp the information associated with the sound information 153a. 【0090】 <First variation (2)> The first variation (2) is a variation in which content 152 includes link information and information about the content displayed on the linked website. 【0091】 First, similar to the first embodiment, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it transmits the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed to the terminal 20A (B2). Here, the content 152 may include link information to a related site related to the portion corresponding to the playback time 154, and information about the destination of that link. 【0092】 For example, if user B, who provides sound information 153, associates link information to a related site introducing a Takarazuka Revue performance with the playback time 154 of the sound information 153, user B may also associate content 152, which includes related information (not limited to, but an example of information about the linked site) that shows the content of that related site, with the playback time 154 of the sound information 153. 【0093】 In this case, the related information may consist of text information extracted from a related website, for example. For example, the related information may consist of text information extracted from the related website, such as parts that user B wants to emphasize or characteristic parts of the related website. The related information may or may not be entered by user B. Furthermore, the related information may or may not be automatically generated by the server 10 by extracting parts related to the sound information 153 from the related website. 【0094】 For example, if the topic of Takarazuka Revue costumes is played in the portion corresponding to playback time 154, user B or server 10 may generate related information such as "The costumes for this performance are ****" from related sites based on the topic of costumes. Once related information is generated in this way, the control unit 11 of server 10 associates the content 152, which includes link information and related information about the linked destination, with a predetermined playback time 154 of the sound information 153. 【0095】 Then, the control unit 11 of the server 10 sends content 152 to the terminal 20A so that the link information and related information about the link destination are displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the link information consisting of URL1 and related information 152a such as "The costumes for this performance are ****" on the display unit 24, as shown in Figure 10 (A3). 【0096】 The control unit 11 of the server 10 may send content 152 containing multiple pieces of related information 152a for a single link information to the terminal 20A. Alternatively, the control unit 11 of the server 10 may send content 152 containing multiple pieces of related information 152a corresponding to multiple pieces of link information to the terminal 20A. 【0097】 <Effects of the first modified example (2)> In the first modified example (2), content 152 includes link information and related information 152a about the linked destination (not limited to, but an example of information about the linked destination). One example of the benefits of this configuration is that user A can easily understand the content of the linked page. 【0098】 <First variation (3)> The first variation (3) is a variation in which content 152 containing information indicating the playback time 154 is displayed on terminal 20A. 【0099】 First, similar to the first embodiment, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it transmits the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed to the terminal 20A (B2). Here, the content 152 may further include playback time information indicating the associated playback time 154. 【0100】 As a result, the control unit 21 of terminal 20A displays the content 152, including the playback time information, on the display unit 24 (A3). For example, as shown in Figure 11A, the control unit 21 of terminal 20A may display the content 152, which includes link information, playback time information 152b, and transmission time information 152c, in the chat room CR. Here, the playback time information 152b indicates the playback time 154 of the sound information 153 associated with the content 152, and for example, the playback time 154 itself may or may not be displayed. Also, the transmission time information 152c indicates the time when the content 152 was transmitted from the server 10 to terminal 20A, and for example, the transmission time itself may or may not be displayed. 【0101】 Furthermore, the playback time information 152b may include control information for playing sound information 153 from the playback position corresponding to playback time 154. As a result, the control unit 21 of terminal 20A may play sound information 153 from the position corresponding to playback time 154 based on the input operation of user A to the playback time information 152b, as shown in Figure 11B. If the position corresponding to playback time 154 is immediately before or after playback time 154, the control unit 21 of terminal 20A may play sound information 153 from immediately before or after playback time 154. 【0102】 Furthermore, the transmission time information 152c may include control information that causes the sound information 153 to be played from a predetermined playback position (for example, a position where the playback time is zero). As a result, the control unit 21 of the terminal 20A may play the sound information 153 from a position where the playback time is zero (playback start position) based on the input operation of user A to the transmission time information 152c. 【0103】 <Effects of the first modified example (3)> In the first variation (3), content 152 includes associated playback time information 152b (not limited to, but an example of information indicating playback time 154). As an example of the effects of this configuration, user A can easily determine the playback time 154 when content 152 was transmitted. 【0104】 Furthermore, in the first modified example (3), the playback time information 152b includes control information for playing sound information 153 from the portion corresponding to playback time 154. As an example of the effects of this configuration, user A can easily play content related to content 152. 【0105】 <First variation (4)> In the first embodiment, the control unit 11 of the server 10 determined whether or not the sound information 153 had been played up to a predetermined playback time 154. However, it is sufficient to determine whether or not it has been played up to a predetermined playback time 154, and is not limited to this. 【0106】 The first modification (4) is a modification in which the control unit 21 of terminal 20A determines whether or not the sound information 153 has been played up to a predetermined playback time 154, and the control unit 11 of server 10 transmits the content 152 to terminal 20A based on the determination made by terminal 20A. 【0107】 <Information Processing> Figure 12 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0108】 First, the control unit 11 of the server 10 associates content 152 with a predetermined playback time 154 of sound information 153, and transmits the predetermined playback time 154 of the associated sound information 153 to the terminal 20A at a predetermined timing (B3). For example, if the control unit 11 receives a request from the terminal 20A to play specific sound information 153, it may transmit the predetermined playback time 154 together with the specific sound information 153 to the terminal 20A. The control unit 11 does not have to transmit the playback time 154 together with the specific sound information 153. Also, the control unit 11 may transmit the playback time 154 to the terminal 20A even if it has not received a request from the terminal 20A to play specific sound information 153. When the control unit 21 of the terminal 20A receives the playback time 154, it associates the playback time 154 with the sound information 153 and stores it in the storage unit 28. Then, the control unit 21 of terminal 20A plays sound information 153 in response to user A's operation, similar to the first embodiment (A1). 【0109】 Furthermore, when the control unit 11 of the server 10 receives a request from the terminal 20A to play the sound information 153, it may or may not send the sound information 153 along with a predetermined playback time 154 to the terminal 20A. Also, the control unit 11 of the server 10 may or may not send the predetermined playback time 154 to the terminal 20A after the sound information 153 has been played back by the terminal 20A. 【0110】 When sound information 153 is played, the control unit 21 of terminal 20A determines whether or not the sound information 153 has been played until a predetermined playback time 154 (A4). The control unit 21 of terminal 20A repeats the determination in step A4 until it determines that the sound information 153 has been played until a predetermined playback time 154. Then, when the control unit 21 of terminal 20A determines that the sound information 153 has been played until a predetermined playback time 154, it sends a playback notification to the server 10 indicating that it has been played until a predetermined playback time 154 (A5). 【0111】 When the control unit 11 of the server 10 receives a playback notification, it sends content 152 to the terminal 20A so that content 152 associated with the playback time 154 is displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays content 152 on the display unit 24, as shown in Figure 8B (A3). 【0112】 <Effects of the first modified example (4)> In the first modified example (4), the control unit 21 of terminal 20A determines whether the sound information 153 has been played until the set playback time 154. Then, the control unit 11 of server 10 controls the transmission of content 152 to terminal 20A if the sound information 153 has been played until the set playback time 154. As an example of the effects of this configuration, the control unit 11 of the server 10 can suppress the number of communications with the terminal 20A. 【0113】 <Second Embodiment> In the first embodiment, the control unit 11 of the server 10 transmitted content 152 to the terminal 20A when the sound information 153 was played up to the playback time 154. However, it is sufficient, and not limited to, that content 152 be displayed on the terminal 20A when it has been played up to the playback time 154. 【0114】 The second embodiment is one in which the control unit 11 of the server 10 transmits content 152 and first information regarding the playback time 154 to the terminal 20A before playback of sound information 153. As a result, when the sound information 153 is played by the terminal 20A up to the playback time 154, content 152 is displayed on the terminal 20A based on the first information. Components identical to those in the first embodiment are denoted by the same reference numerals and their further explanation is omitted. The contents described in the second embodiment are applicable to any of the other embodiments. 【0115】 <Information Processing> Figure 13 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0116】 First, the control unit 11 of the server 10 controls the communication unit 14 to transmit content 152 and first information 155 relating to the playback time 154 associated with the content 152 to the terminal 20A, as shown in Figure 14 (B21). 【0117】 Here, since sound information 153 is not being played on terminal 20A, the control unit 11 of server 10 may, for example, select sound information 153 under predetermined conditions and send to terminal 20A the content 152 associated with that sound information 153 and first information 155 that causes the content 152 to be displayed at the playback time 154. For example, the control unit 11 may or may not select multiple sound information 153 based on user A's playback history and send to terminal 20A the content 152 and first information 155 associated with those multiple sound information 153. Also, when new sound information 153 is provided to the sound information site by user B, the control unit 11 may or may not send to terminal 20A the content 152 and first information 155 associated with that sound information 153. 【0118】 Furthermore, the control unit 11 of the server 10 may or may not transmit to the terminal 20A a specific sound information 153, the content 152 associated with that specific sound information 153, and the first information 155 based on a request from the terminal 20A regarding sound information 153, for example, a request to transmit specific sound information 153. 【0119】 Here, the first information 155 is information for displaying content 152 on terminal 20A when specific sound information 153 has been played on terminal 20A until a predetermined playback time 154. For example, the first information 155 may include a predetermined playback time 154 for the sound information 153 and control information for displaying content 152 on terminal 20A at that playback time 154. When the control unit 21 of terminal 20A receives content 152 and the first information 155, it stores the content 152 and the first information 155 in association with each other in the storage unit 28. 【0120】 Next, similar to the first embodiment, the control unit 21 of terminal 20A plays specific sound information 153 based on the input operation of user A (A1). The control unit 21 of terminal 20A may play sound information 153 that has been downloaded from server 10. Alternatively, the control unit 21 of terminal 20A may play sound information 153 by so-called streaming distribution, for example, by receiving sound information 153 from server 10 and playing the sound information 153 at the same time. 【0121】 Here, the control unit 21 of terminal 20A, for example, when it plays sound information A, determines whether sound information 153 has been played up to a predetermined playback time 154, which is 30 minutes (A21). The control unit 21 of terminal 20A repeats the determination in step A21 until it determines that sound information A has been played up to the playback time 154. Then, when the control unit 21 of terminal 20A determines that sound information A has been played up to the playback time 154, it displays URL1, which is content 152 associated with the playback time 154, on the display unit 24 based on control information A of the first information 155 (A3). For example, as shown in Figure 8B, the control unit 21 may display content 152 in the chat room CR shared with user A. 【0122】 Thus, the control unit 21 of terminal 20A stores the content 152 and the first information 155 in the storage unit 28 before playing the sound information 153. Therefore, even if the connection to the network 30 is disconnected while the sound information 153 is playing, the content 152 will be displayed in accordance with the playback of the sound information 153. 【0123】 <Effects of the second embodiment> In the second embodiment, the server 10 includes a communication unit 14 that transmits content 152 and first information 155 relating to a set playback time 154 to the terminal 20A. When the sound information 153 is played by the terminal 20A up to the set playback time 154, the content 152 is displayed to the terminal 20A based on the first information 155. As an example of the effects of this configuration, user A can easily retrieve content 152 associated with playback time 154. 【0124】 <Second variation (1)> In the second embodiment, the control unit 11 of the server 10 transmitted the content 152 and the first information 155 to the terminal 20A before playing the sound information 153, but it is sufficient to transmit the content 152 and the first information 155 to the terminal 20A, and is not limited to this. 【0125】 The second modification (1) is a modification in which the control unit 11 of the server 10 transmits the content 152 and the first information 155 to the terminal 20A when playing the sound information 153. 【0126】 <Information Processing> Figure 15 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0127】 First, the control unit 21 of terminal 20A sends a request to the server 10 to play specific sound information 153 based on the input operation of user A (A22). For example, the control unit 21 may send a request to the server 10 to play specific sound information 153 based on the input operation of the play button 2 shown in Figure 8A. 【0128】 Here, let's assume that the control unit 21 of terminal 20A sends, for example, a request to play sound information A to server 10. When the control unit 11 of server 10 receives the request to play sound information A, it controls the communication unit 14 to send the requested sound information A, the URL 1 which is content 152 associated with a predetermined playback time 154 of sound information A, and the first information 155 related to the playback time 154 to terminal 20A (B22), as shown in Figure 16. In other words, the control unit 11 sends only the content 152 and the first information 155 associated with sound information A to terminal 20A, and does not send the content 152 and the first information 155 associated with the other sound information B and C. 【0129】 When the control unit 21 of terminal 20A receives sound information A, content 152, and first information 155, it stores content 152 and first information 155 in the storage unit 28 in association with sound information A. 【0130】 Next, when the control unit 21 receives sound information A, it controls the speaker 26 to play the sound information A (A1). Then, the control unit 21 refers to the first information 155 stored in the memory unit 28 and determines whether or not the sound information A has been played up to a predetermined playback time 154, which is 30 minutes (A21). The control unit 21 of terminal 20A repeats the determination in step A21 until it determines that the sound information A has been played up to the playback time 154. If the control unit 21 of terminal 20A determines that the sound information A has been played up to the playback time 154, it displays the URL 1, which is content 152 associated with the playback time 154, on the display unit 24 based on the control information A in the first information 155 (A3). 【0131】 <Effects of the second modified example (1)> In the second modified example (1), when the control unit 11 of the server 10 receives a request to play sound information 153, it transmits the sound information 153, the content 152 associated with a predetermined playback time 154 of the sound information 153, and the first information 155 related to the predetermined playback time 154 to the terminal 20A. As an example of the effects of this configuration, the control unit 21 of terminal 20A receives only the content 152 and first information 155 associated with sound information A, thereby suppressing a decrease in memory capacity. 【0132】 <Third Embodiment> The third embodiment is one in which the control unit 11 of the server 10 selects content 152 to be transmitted to the terminal 20A based on the attribute information of user A when user A has played sound information 153 up to a predetermined playback time 154. Note that components identical to those in the first and second embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the third embodiment are applicable to any of the other embodiments. 【0133】 <Information Processing> Figure 17 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0134】 First, the control unit 21 of terminal 20A transmits user A's attribute information to the server 10 at a predetermined timing (A31). The control unit 21 may transmit the attribute information to the server 10, for example, when it accesses the server 10 or when user A inputs information. Here, user A's attribute information is information related to user A, and may include, for example, user A's registration information for groups of sound information 153. Examples of groups of sound information 153 include members of sound information 153 (e.g., members who regularly listen to sound information 153, fan clubs, etc.). User A's attribute information may also include the username, identification information of terminal 20A, or playback history of sound information 153. 【0135】 When the control unit 11 of the server 10 receives attribute information of user A, it stores that attribute information in the storage unit 15 (B31). For example, as shown in Figure 18, the control unit 11 may store each item of attribute information 4 in the storage unit 15 in association with each other. Here, attribute information 4 for user A indicates that there is a playback history of sound information A and that the user is a member of sound information B. Also, attribute information 4 for user C indicates that there is a playback history of sound information A and B and that the user is a member of sound information A. Also, attribute information 4 for user D indicates that there is a playback history of sound information B and that the user is not registered as a member. 【0136】 Next, similar to the first embodiment, the control unit 21 of terminal 20A plays sound information 153 based on the input operation of user A (A1). Then, when sound information A is played, the control unit 21 of terminal 20A transmits time information indicating the playback position of the sound information 153 to the server 10 (A2). At this time, the control unit 21 may also transmit identification information of the played sound information 153 to the server 10 along with the time information. 【0137】 Here, the control unit 21 of terminal 20A plays sound information A. When the control unit 11 of server 10 receives the time information and identification information of sound information A from terminal 20A, it refers to the attribute information 4 of user A stored in the storage unit 15 based on the identification information of sound information A and selects the content 152 to send to terminal 20A (B32). For example, if the control unit 11 detects that user A is not registered as a member of sound information A based on the identification information of sound information A, it may select the member information of sound information A as the content 152. Member information may include, for example, link information to a member registration site (e.g., URL), a member registration notification, or link information to a member introduction site. 【0138】 When the control unit 11 selects content 152, it may associate that content 152 with a predetermined playback time 154 of the sound information A. For example, the control unit 11 may determine an appropriate playback time 154 in the sound information A based on the type of content 152 selected, and associate the content 152 with that playback time 154. For example, if the control unit 11 detects a portion of the sound information A that introduces member benefits, it may associate the member information content 152 with that playback time 154. Alternatively, the control unit 11 may associate the selected content 152 with a preset playback time 154. 【0139】 Next, the control unit 11, similar to the first embodiment, determines whether the sound information A has been played up to a predetermined playback time 154 based on the time information of the sound information A received from the terminal 20A (B1). The control unit 11 repeats the determination in step B1 until it determines that the sound information A has been played up to a predetermined playback time 154. 【0140】 Then, when the control unit 11 of the server 10 determines that the sound information A has been played by the terminal 20A up to a predetermined playback time 154, it transmits content 152 to the terminal 20A so that content 152 associated with playback time 154 is displayed to the terminal 20A (B2). In other words, the control unit 11 transmits content 152 selected based on the attribute information 4 of user A to the terminal 20A. 【0141】 Here, as shown in Figure 19, the control unit 11 selects the content 152 to send based on the user's attribute information 4, so even if the same sound information A is played, the content 152 to send may be changed according to the attribute information 4. For example, if user A plays sound information A, the control unit 11 may send content 152 including member information for sound information A (an example of information about a group, not just a specific group) to terminal 20A, since user A is not registered as a member of sound information A in user A's attribute information 4. Also, if sound information A is played on terminal 20C, the control unit 11 of the server 10 may decide not to send member information for sound information A because user C is registered as a member of sound information A in user C's attribute information 4. In this case, the control unit 11 may send member information for other sound information B related to sound information A (for example, sound information B that is similar in category to sound information A) to terminal 20C. Furthermore, if sound information A is played on terminal 20D, the control unit 11 may, since user D is not registered as a member of sound information A in user D's attribute information 4, send content 152 containing member information for sound information A to terminal 20D, similar to terminal 20A. Also, since user D is not registered as a member of other sound information B related to sound information A, the control unit 11 may send content 152 containing member information for sound information B to terminal 20D. 【0142】 In this embodiment, attribute information 4 includes user registration information for members of sound information 153, but it is not limited to including user registration information for groups related to sound information 153. For example, if a group (e.g., a fan club) related to the provider of sound information 153 has been formed, attribute information 4 may also include user registration information for that group. 【0143】 Furthermore, in this embodiment, the control unit 21 of terminal 20A transmits user A's attribute information (A31), but it is sufficient, and not limited to, that the server 10 can obtain user A's attribute information. For example, the control unit 11 of server 10 may or may not store the history of various transmission information transmitted from terminal 20A (e.g., playback history of sound information 153, website browsing history, application usage history, etc.) in the storage unit 15 and obtain user A's attribute information from that history. Also, the control unit 11 of server 10 may or may not estimate user A's attribute information based on the history of transmission information stored in the storage unit 15. 【0144】 <Effects of the Third Embodiment> In the third embodiment, the control unit 11 of the server 10 performs control to select the content 152 to be transmitted based on the attribute information of user A of terminal 20A. As an example of the effects of this configuration, the control unit 11 can transmit content 152 suitable for user A. 【0145】 In the third embodiment, attribute information 4 includes user registration information for groups relating to sound information 153. As an example of the effects of this configuration, the control unit 11 can transmit information about a group suitable for user A. 【0146】 In the third embodiment, if user A is not registered in the group, the control unit 11 of the server 10 performs control to send content 152 containing information about the group to the terminal 20A. One example of the benefits of this configuration is that user A can easily obtain information about unregistered groups. 【0147】 <Third variation (1)> In the third embodiment, the control unit 11 of the server 10 selected content 152 based on user A's registration information for the group of sound information 153, but it is not limited to selecting content 152 based on user A's attribute information 4. 【0148】 The third modification (1) is a modification in which the control unit 11 of the server 10 refers to the playback history of user A when sound information A is played on terminal 20A, and if sound information B associated with sound information A is not played, selects information about sound information B as content 152. 【0149】 First, similar to the third embodiment, the control unit 21 of terminal 20A plays sound information A based on the input operation of user A (A1), and transmits time information indicating the playback position of sound information A to the server 10 (A2). Then, when sound information A is played on terminal 20A, the control unit 11 of server 10 selects content 152 to transmit to terminal 20A based on the attribute information 4 shown in Figure 18 (B32). Here, it is assumed that sound information A is associated with sound information B. For example, sound information A may be associated with sound information B if there is a high similarity in categories, if the provider is the same, or if sound information B is an episode related to sound information A (for example, the continuation of the content of sound information A). 【0150】 The control unit 11 refers to user A's playback history in attribute information 4 and determines whether user A is playing sound information B associated with sound information A, which is being played on terminal 20A. If user A is not playing sound information B, the control unit 11 may send content 152 containing related information about sound information B to terminal 20A, as shown in Figure 20. In other words, the control unit 11 may send related information about sound information B, which is highly related to sound information A, being played on terminal 20A, to terminal 20A. Examples of related information include links to websites introducing sound information B, notifications introducing sound information B, or links to websites providing sound information B. 【0151】 Here, the control unit 11 selects the content 152 to send based on the user's playback history, so even if the same sound information A is played, the content 152 to send may be changed according to the playback history. For example, if sound information A is played on terminal 20C or 20D, the control unit 11 may refer to the playback history of user C or D in attribute information 4 and determine that sound information B associated with sound information A has already been played, and therefore not send the related information for sound information B. 【0152】 <Effects of the third modified example (1)> In the third modified example (1), attribute information 4 includes user A's playback history, and if user A has not played sound information B associated with played sound information A, the control unit 11 of server 10 sends content 152 containing related information about sound information B (not limited to, but an example of information about sound information B) to terminal 20A. As an example of the effects of this configuration, user A can easily obtain related information about sound information B associated with sound information A in response to hearing sound information A. 【0153】 <Fourth Embodiment> The fourth embodiment is one in which, even if the sound information 153 has been played until a predetermined playback time 154, the control unit 11 of the server 10 stops transmitting the content 152 under predetermined conditions. Note that components identical to those in the first to third embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the fourth embodiment are applicable to any of the other embodiments. 【0154】 <Information Processing> Figure 21 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0155】 First, the control unit 21 of terminal 20A sends a transmission stop request to server 10 (A41), which is a request to stop the transmission of content 152 from server 10, based on the input operation of user A. For example, as shown in Figure 22, the control unit 21 may display a stop button 5 on the display unit 24 to request the cessation of transmission of content 152 based on the input operation of user A to chat room CR. Then, the control unit 21 may send a transmission stop request for content 152 to server 10 based on the input of user A to the stop button 5. Note that the transmission stop request is a request to stop the transmission of content 152 only, and does not stop the transmission of anything other than content 152 (for example, rejecting all transmission information from server 10). 【0156】 When the control unit 11 of the server 10 receives a transmission stop request, it stores the transmission stop request in the storage unit 15 in association with the identification information of the terminal 20A (B41). 【0157】 Next, similar to the first embodiment, the control unit 21 of terminal 20A plays sound information 153 based on the input operation of user A (A1), and transmits time information indicating the playback position to the server 10 (A2). When the control unit 11 of server 10 receives the time information of sound information 153 from terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played up to a predetermined playback time 154 (B1). The control unit 11 of server 10 repeats the determination in step B1 until it is determined that the sound information 153 has been played up to a predetermined playback time 154. 【0158】 Then, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it refers to the storage unit 15 to determine whether or not it has received a transmission stop request from the terminal 20A (B42). If the control unit 11 determines that it has not received a transmission stop request, it sends the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed to the terminal 20A (B2). 【0159】 On the other hand, if the control unit 11 determines that it has received a request to stop transmission, it stops transmitting content 152 to terminal 20A. In other words, the control unit 11 terminates processing without transmitting content 152 to terminal 20A. 【0160】 <Effects of the 4th Embodiment> In the fourth embodiment, when the control unit 11 of the server 10 receives a request from the terminal 20A to stop the transmission of content 152, it performs control to stop the transmission of content 152 to the terminal 20A. As an example of the effects of this configuration, user A can easily stop sending content 152. 【0161】 <Fifth Embodiment> The fifth embodiment is one in which the control unit 11 of the server 10 transmits content 152 to chat room CR when a request for playback of sound information 153 is received from chat room CR, while stopping the transmission of content 152 when a request for playback of sound information 153 is received from a source other than chat room CR. Note that components identical to those in the first to fourth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the fifth embodiment are applicable to any of the other embodiments. 【0162】 <Information Processing> Figure 23 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0163】 First, the control unit 21 of terminal 20A displays the chat room CR on the display unit 24 based on user A's input (A51). For example, the control unit 21 may display the chat room CR of the sound information site on the display unit 24, as shown in Figure 24. Then, the control unit 21 sends a request to the server 10 to play specific sound information 153 based on user A's input to the chat room CR (A52). For example, the control unit 21 may send a request to the server 10 to play sound information 153 based on input to the play request button 6 displayed on the chat room CR. At this time, the control unit 21 may transition from the chat room CR to a screen for playing sound information 153, as shown in Figure 8A, based on user A's input to the play request button 6. In this way, when a play request is made due to input to the chat room CR, the control unit 21 may send a play request based on the chat room CR to the server 10. Thus, the play request includes information on whether or not it is a request based on the chat room CR. 【0164】 The screen for playing the sound information 153 only needs to be displayed on terminal 20A, for example, on a website or within an application. Similarly, the chat room CR only needs to be displayed on terminal 20A, for example, on a website or within an application. 【0165】 When the control unit 11 of the server 10 receives a request to play sound information 153, it stores the request in the storage unit 15 (B51). The control unit 11 also controls the communication unit 14 to transmit the requested specific sound information 153 to the terminal 20A (B52). When the control unit 21 of the terminal 20A receives the specific sound information 153, it controls the speaker 26 to play the sound information 153 (A1). Then, when the sound information 153 is played, the control unit 21 of the terminal 20A transmits time information indicating the playback position to the server 10 (A2). 【0166】 When the control unit 11 of the server 10 receives time information of sound information 153 from the terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played up to a predetermined playback time 154 (B1). The control unit 11 of the server 10 repeats the determination in step B1 until it determines that the sound information 153 has been played up to a predetermined playback time 154. 【0167】 Then, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it determines, based on the playback request stored in the storage unit 15, whether or not the sound information 153 was requested to be played based on the input to the chat room CR (B53). If the control unit 11 determines that the sound information 153 was not requested to be played based on the input to the chat room CR, that is, if it determines that the sound information 153 was requested to be played from a site or application unrelated to the chat room CR, it stops sending the content 152 and terminates the process. 【0168】 Meanwhile, if the control unit 11 determines that sound information 153 has been requested to be played based on the input to the chat room CR, it sends content 152 to the terminal 20A so that content 152 can be displayed in the chat room CR (B2). As a result, the control unit 21 of the terminal 20A displays content 152 in the chat room CR (A3). 【0169】 In this embodiment, the control unit 11 of the server 10 sent content 152 to the terminal 20A when sound information 153 was played based on input to the play request button 6 in the chat room CR. However, it is not limited to sending content 152 to the terminal 20A based on input to the chat room CR. For example, as shown in Figure 25, the control unit 11 may send content 152 to the terminal 20A when link information 6a that transitions to a screen for playing sound information 153 is displayed in the chat room CR, and sound information 153 is played based on input to this link information 6a. 【0170】 At this time, the control unit 11 may, for example, transmit link information 6a managed by the server 10, and when the link information 6a is input, it may display the screen associated with the link information 6a via the server 10. For example, the control unit 11 may receive a screen display request from the terminal 20A in response to the input operation of the link information 6a, and in response to the display request, it may cause the terminal 20A to display the screen associated with the link information 6a. As a result, the control unit 21 can determine that sound information 153 has been played in the terminal 20A based on the input to the chat room CR. Furthermore, the control unit 11 may sequentially store user A's operation information for the chat room CR and determine whether or not sound information 153 has been played on terminal 20A based on that operation information. For example, if sound information 153 itself is transmitted to the chat room CR and sound information 153 is played on the chat room CR, the control unit 11 may determine, based on that operation information, that the sound information 153 has been played due to input to the chat room CR. 【0171】 <Effects of the Fifth Embodiment> In the fifth embodiment, the control unit 11 of the server 10 controls the transmission of content 152 to terminal 20A based on input from user A of terminal 20A to the chat room CR displayed on terminal 20A. As an example of the effects of this configuration, since the screen on which the sound information 153 is requested to be played and the screen on which the content 152 is sent are the same chat room CR, user A can recognize the relationship between the playback request and the content 152, and user A's discomfort with the content 152 can be suppressed. 【0172】 In the fifth embodiment, the control unit 11 of the server 10 controls the server 20A to send content 152 to terminal 20A when user A of terminal 20A inputs to the chat room CR displayed on terminal 20A, and the system transitions from the chat room CR to a screen for playing sound information 153. The content 152 is then displayed in the chat room CR. As an example of the effects of this configuration, since content 152 is displayed in the chat room CR as a result of input to the chat room CR, it is possible to suppress user A's discomfort with content 152. For example, if user A plays sound information 153 on a specific site unrelated to the chat room CR, and the content 152 of that sound information 153 is sent to the chat room CR instead of the specific site, user A may not be able to quickly understand the relationship between the sound information 153 and content 152. In other words, user A may not quickly understand that content 152 was sent as a result of playing sound information 153, and may be led to the misunderstanding that content 152 was sent from a third party unrelated to sound information 153. Therefore, in this disclosure, when sound information 153 is played as a result of input to the chat room CR, content 152 is sent to the chat room CR, thereby suppressing user A's discomfort with content 152. 【0173】 <Sixth Embodiment> The sixth embodiment is an embodiment in which, when playback information for playing sound information 153 is displayed on terminal 20A, for example, in chat room CR, display information of content 152 associated with a predetermined playback time 154 of sound information 153 is displayed in chat room CR together with the playback information. Note that components identical to those in the first to fifth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the sixth embodiment are applicable to any of the other embodiments. 【0174】 <Information Processing> Figure 26 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0175】 First, the control unit 21 of terminal 20A sends a request to the server 10 to transmit specific sound information 153 based on the input operation of user A (A61). Then, when the control unit 11 of server 10 receives the request to transmit sound information 153, it transmits playback information for sound information 153 to terminal 20A so that playback information for playing sound information 153 is displayed on terminal 20A. Furthermore, if the playback information for sound information 153 is displayed on terminal 20A, the control unit 11 transmits display information for content 152 associated with a predetermined playback time 154 of sound information 153 to terminal 20A so that display information for content 152 is displayed on terminal 20A (B61). 【0176】 When the control unit 21 of terminal 20A receives playback information for sound information 153 and display information for content 152, it displays the playback information and display information on the display unit 24 (A62). For example, as shown in Figure 27, the control unit 21 may display the playback information 7 for sound information 153 and the display information 8 for content 152 in the chat room CR. Figure 27 shows an example in which multiple playback information 7 and the display information 8 for content 152 corresponding to those multiple playback information 7 are displayed. For example, one content 152 is associated with sound information A, and the display information 8 for that one content 152 is displayed together with the playback information 7 for sound information A. Also, three content 152 are associated with sound information B, and the display information 8 for those three content 152s is displayed together with the playback information 7 for sound information B. The multiple playback information 7 may or may not be displayed in a so-called carousel message format, which allows horizontal scrolling on the display unit 24 of terminal 20A. 【0177】 Here, the playback information 7 of the sound information 153 is for user A to input operations in order to play the sound information 153, and may, for example, include the sound information 153 itself, or it may include link information to a site that plays the sound information 153. If the playback information 7 includes the sound information 153, user A's input to the playback information 7 may cause the sound information 153 to be played in the chat room CR. Alternatively, if the playback information 7 includes link information, user A's input to the playback information 7 may cause the user to transition to, for example, the sound information site shown in Figure 8A, and the sound information 153 may be played on the sound information site. In this case, the display information 8 may be displayed in the chat room CR together with the link information, or it may be displayed on the sound information site. 【0178】 Furthermore, the display information 8 for content 152 indicates the existence of content 152 associated with a predetermined playback time 154 of sound information 153 before content 152 is transmitted (for example, before sound information 153 is played). For example, the display information 8 may be configured to allow the user to understand the number, type, or characteristics of the associated content 152. For example, if content 152 consists of link information, the display information 8 may consist of the text information of the link information, excluding the function of transitioning to a site. Also, if content 152 consists of link information, the display information 8 may consist of information that substitutes the link information with symbols, images, patterns, etc. For example, the display information 8 may consist of information that substitutes the link information with "Link 1". In this way, since the display information 8 does not display the link information itself but substitutes the link information, the user cannot understand the link information just by looking at the display information 8, thus maintaining the motivation for user A to play sound information 153. Furthermore, if content 152 consists of image information as shown in Figure 9, display information 8 may consist of textual information that describes the image information, for example, "An image of a bonsai is associated with this content." Alternatively, display information 8 may consist of information that replaces the image information with symbols, for example, "Image 1." 【0179】 Furthermore, the display information 8 for content 152 may also include information about the playback time 154 associated with content 152. For example, the display information 8 may include information 9 about the playback time 154, as shown in Figure 28. Here, the information 9 about the playback time 154 indicates the playback time 154 associated with content 152, and may consist of, for example, character information indicating the playback time 154. For example, if content 152 associated with sound information A is associated with a playback time 154 at 30 minutes past the hour, the control unit 21 of terminal 20A may display information 9 about the playback time 154 indicating that content 152 will be transmitted at 30 minutes past the hour in the chat room CR. 【0180】 In this way, when the playback information 7 of the sound information 153 and the display information 8 of the content 152 are displayed on the display unit 24, the control unit 21 of the terminal 20A controls the speaker 26 to play the sound information 153 based on the input of user A for the playback information 7 (A1). 【0181】 In this embodiment, the display information 8 of content 152 is displayed in the chat room CR, but it is sufficient and not limited to the display information 8 being displayed when the playback information 7 of sound information 153 is displayed on terminal 20A. For example, if the playback information 7 of sound information 153 is displayed on the video site shown in Figure 8A, the display information 8 of content 152 may or may not be displayed on the video site. 【0182】 <Effects of the 6th Embodiment> In the sixth embodiment, when playback information 7 (not limited to, but an example of information that plays sound information 153) that plays sound information 153 is displayed on the terminal 20A, the control unit 11 of the server 10 performs control to send display information 8 of the content 152 to the terminal 20A so that the display information 8 of the associated content 152 is displayed. As an example of the effects of this configuration, user A can easily grasp the content 152 associated with the sound information 153. 【0183】 Furthermore, in the sixth embodiment, the display information 8 of the content 152 includes information 9 of the playback time 154. As an example of the effects of this configuration, user A can easily identify the playback time 154 associated with content 152. 【0184】 <Sixth variation (1)> In the sixth embodiment, the display information 8 of the content 152 was displayed on the terminal 20A before the playback of the sound information 153. However, the display information 8 of the content 152 only needs to be displayed when the playback information 7 of the sound information 153 is displayed on the terminal 20A, and is not limited to this. 【0185】 The sixth modification (1) is a modification in which the display information 8 of the content 152 is displayed on the terminal 20A while the sound information 153 is being played. The display mode of the display information 8 of the content 152 is changed in accordance with the playback of the sound information 153 so as the playback time approaches 154, the visibility is increased. 【0186】 <Information Processing> Figure 29 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0187】 First, similar to the sixth embodiment, the control unit 11 of the server 10 transmits the playback information 7 of the sound information 153 and the display information 8 of the content 152 to the terminal 20A so that they are displayed on the terminal 20A (B61). When the control unit 21 of the terminal 20A receives the playback information 7 and the display information 8, it displays the playback information 7 of the sound information 153 on the display unit 24 (A62). The control unit 21 may, for example, display the playback information 7 of the sound information 153 in the chat room CR. Then, the control unit 21 of the terminal 20A controls the speaker 26 to play the sound information 153 based on the input of user A to the playback information 7 (A1). At this time, the playback information 7 of the sound information 153 may be changed in display form to display information indicating the playback status of the sound information 153, such as a seek bar 7a, as shown in Figure 30A. Furthermore, when sound information 153 is played, the control unit 21 of terminal 20A transmits time information indicating the playback position to the server 10 (A2). 【0188】 Thus, when the playback information 7 of the sound information 153 is displayed on the terminal 20A and the sound information 153 is played, the control unit 21 of the terminal 20A displays the display information 8 of the content 152 on the display unit 24 (A63). At this time, the display information 8 of the content 152 may be displayed in a state where the visibility to user A is lower than a predetermined threshold (for example, information with low color intensity, a state with high transparency, etc.). When the sound information 153 is played, the display mode of the display information 8 of the content 152 is changed (A64). For example, as shown in Figure 30B, the display mode of the display information 8 of the content 152 may be changed so that visibility increases as it approaches a predetermined playback time 154 associated with the content 152. For example, the display information 8 of the content 152 may have its color intensity increased or its transparency decreased. Here, the display information 8 of the content 152 may include, for example, control information that changes the display mode. The display information 8 of the content 152 may be displayed immediately after the playback of the sound information 153, or it may be displayed a predetermined time after the start of playback of the sound information 153. 【0189】 Meanwhile, when the control unit 11 of the server 10 receives time information of sound information 153 from the terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played until a predetermined playback time 154 (B1). The control unit 11 of the server 10 repeats the determination in step B1 until it determines that the sound information 153 has been played until a predetermined playback time 154. 【0190】 Then, if the control unit 11 of the server 10 determines, for example, that the sound information 153 has been played up to a predetermined playback time 154, it transmits the content 152 associated with the playback time 154 to the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the content 152 on the display unit 24 (A3). 【0191】 In addition, in the sixth modification (1), the display information 8 of the content 152 may be displayed on the terminal 20A before the sound information 153 is played. For example, as shown in Figure 26, the display information 8 of the content 152 may be displayed on the terminal 20A together with the playback information 7 of the sound information 153 before the sound information 153 is played. Furthermore, when the sound information 153 is played, the display mode of the display information 8 of the content 152 may be changed as shown in Figure 30A. 【0192】 <Effects of the 6th modified example (1)> In the sixth modification (1), the display information 8 of the content 152 is changed in a way that improves visibility as it approaches the playback time 154 associated with the content 152 when the sound information 153 is played. One example of the effects of this configuration is that it can increase user A's interest in content 152. 【0193】 <Sixth variation (2)> The sixth variation (2) is a variation that displays the remaining time until content 152 is displayed. 【0194】 For example, the control unit 11 of the server 10 may, instead of the display information 8 of the content 152 in the sixth modified example (1), transmit display time information indicating the remaining time until the content 152 is displayed to the terminal 20A (B61). This display time information may be set to be displayed to the terminal 20A, for example, a predetermined time before the playback time 154 associated with the content 152. 【0195】 When the control unit 21 of terminal 20A receives playback information 7 of sound information 153 and display time information of content 152, it displays the playback information 7 on the display unit 24 (A62). Then, based on user A's input for the playback information 7, the control unit 21 plays the sound information 153 (A1) and transmits time information indicating the playback position to the server 10 (A2). 【0196】 In this way, when the sound information 153 is played, the control unit 21 determines, based on the display time information, whether the sound information 153 has been played up to a predetermined time before the playback time 154 associated with the content 152. If the control unit 21 determines that the sound information 153 has been played up to a predetermined time before the playback time 154, it displays the display time information on the display unit 24. For example, as shown in Figure 31, the display time information 31 may be configured to count down from a predetermined time before the playback time 154. 【0197】 In the sixth modified example (2), the control unit 11 of the server 10 sent the display time information 31 to the terminal 20A instead of the display information 8 of the content 152, but it is also possible to send the display time information 31 to the terminal 20A together with the display information 8 of the content 152. As a result, when the sound information 153 is played, the control unit 21 of the terminal 20A displays the display information 8 of the content 152 on the display unit 24 (A63). Furthermore, the control unit 21 may also display the display time information 31 on the display unit 24 if the sound information 153 has been played up to a predetermined time before the playback time 154 associated with the content 152. 【0198】 <Effects of the 6th variation (2)> In the sixth modified example (2), the display time information 31 (not limited to, but an example of information indicating the remaining time until content 152 is displayed) that shows the remaining time until content 152 is displayed is displayed on the terminal 20A when the sound information 153 has been played up to a predetermined time before the predetermined playback time 154 associated with content 152. One example of the effects of this configuration is that it can increase user A's interest in content 152. 【0199】 <Seventh Embodiment> The seventh embodiment is one in which, when user B provides sound information 153 to the sound information site, the control unit 11 of the server 10 automatically associates content 152 with a predetermined playback time 154 of the provided sound information 153. Note that components identical to those in the first to sixth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the seventh embodiment are applicable to any of the other embodiments. 【0200】 <Information Processing> Figure 32 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0201】 First, the control unit 21 of terminal 20B sends an automatic configuration request to the server 10 based on the input operation of user B (C71). This automatic configuration request is a request to set up the system so that a predetermined content 152 is automatically associated with the playback time 154 of the sound information 153 provided from terminal 20B to the server 10. For example, as shown in Figure 33, the automatic configuration request 32 may be set to select the content 152 to be associated with the sound information 153 from a plurality of selection items 33. 【0202】 Furthermore, the control unit 21 transmits sound information 153 to be provided to the sound information site to the server 10 based on the input operation of user B (C72). Note that the automatic setting request may be transmitted to the server 10 at the same time as the transmission of sound information 153, or it may be transmitted to the server 10 after the transmission of sound information 153. 【0203】 When the control unit 11 of the server 10 receives an automatic configuration request 32 for content 152 from terminal 20B, and when sound information 153 is provided by terminal 20B, it associates a specific content 152 with the playback time 154 of the sound information 153 (B71). At this time, the control unit 11 may select a specific content 152 based on a specific selection item 33 selected in the automatic configuration request 32 and associate that content 152 with the sound information 153. For example, if the item 33 "Automatically send the URL of the message" is selected in the automatic configuration request 32, the content 152 corresponding to this item 33 may include link information to a site where a message about the sound information 153 is entered, for example, link information to a message site where a message is entered. Alternatively, the content 152 may be common for each item 33, and the control unit 11 may associate the same content 152 with the sound information 153 for each item 33. 【0204】 Furthermore, the control unit 11 may automatically set a playback time 154 to associate content 152 with, for example, based on sound information 153 provided from terminal 20B. For example, the control unit 11 may associate content 152 with the last playback time 154 in the playback time of sound information 153, that is, the time when all of sound information 153 has been played. Alternatively, the control unit 11 may associate content 152 with a playback time 154 that is a predetermined time after the start of playback of sound information 153. Alternatively, the control unit 11 may perform speech analysis on sound information 153 and associate content 152 with a playback time 154 in which content related to letters, such as "We are waiting for your letter," is played. 【0205】 In this way, once the content 152 is associated with the playback time 154 of the sound information 153, the control unit 11 of the server 10 publishes the sound information 153 on, for example, the sound information site (B72). 【0206】 Next, the control unit 21 of terminal 20A sends a request to the server 10 to play specific sound information 153 based on the input operation of user A (A71). When the control unit 11 of server 10 receives the request to play sound information 153, it controls the communication unit 14 to send the requested sound information 153 to terminal 20A (B73). When the control unit 21 of terminal 20A receives the sound information 153, it controls the speaker 26 to play the sound information 153, as shown in Figure 34A (A1). When sound information A is played, the control unit 21 of terminal 20A sends time information indicating the playback position to the server 10 (A2). 【0207】 When the control unit 11 of the server 10 receives time information of sound information 153 from the terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played up to a predetermined playback time 154 (B1). The control unit 11 of the server 10 repeats the determination in step B1 until it determines that the sound information 153 has been played up to a predetermined playback time 154. 【0208】 When the control unit 11 of the server 10 determines that the sound information 153 has been reproduced until the reproduction time 154 automatically set in the server 10, for example, until the end, the control unit 11 transmits the content 152 associated with the reproduction time 154 to the terminal 20A so that the content 152 is displayed on the terminal 20A (B2). Thereby, the control unit 21 of the terminal 20A causes the display unit 24 to display the content 152 including, for example, link information to the letter site (A3). 【0209】 Then, in response to the input of the user A to the content 152, the control unit 21 of the terminal 20A causes the display screen to transition to the letter input site 34 for inputting a letter as shown in FIG. 34B. Thereby, the user A can input a letter for the sound information 153, for example, a message such as a questionnaire, impression, or opinion for the sound information 153. The control unit 11 of the server 10 may transmit the letter input by the user A to the terminal 20B. 【0210】 <Effect of the Seventh Embodiment> In the seventh embodiment, when the control unit 11 of the server 10 receives the automatic setting request 32 of the content 152 from the terminal 20B, or when the sound information 153 is provided from the terminal 20B, the control unit 11 performs control to associate the set content 152 with the reproduction time 154 of the sound information 153. As an example of the effect of such a configuration, the user B can easily associate the content 152 with the reproduction time 154 of the sound information 153. 【0211】 Also, in the seventh embodiment, the set content 152 includes link information to a site for inputting a message regarding the sound information 153. As an example of the effect of such a configuration, the user A can easily input a message regarding the sound information 153. 【0212】 Also, in the seventh embodiment, the control unit 11 of the server 10 performs control to set the reproduction time 154 to be associated with the content 152 based on the sound information 153 provided from the terminal 20B. As an example of the effect of such a configuration, user B can more easily associate content 152 with the playback time 154 of sound information 153. 【0213】 <7th Modified Example (1)> In the 7th embodiment, the control unit 11 of the server 10 associated the common content 152 created in advance when a specific selection item 33 was selected in the automatic setting request 32, but different content 152 may be associated. 【0214】 The 7th Modified Example (1) is a modified example in which the control unit 11 of the server 10 associates different content 152 with the playback time 154 of the sound information 153 according to the sound information 153 provided from the terminal 20B. 【0215】 First, as in the 7th embodiment, the control unit 21 of the terminal 20B transmits the automatic setting request 32 to the server 10 (C71) and transmits the sound information 153 to the server 10 (C72). Here, it is assumed that user B has selected the item 33 of "automatically transmit the URL of the letter" in the automatic setting request 32 as shown in FIG. 33. 【0216】 When the control unit 11 of the server 10 receives the automatic setting request 32 and the sound information 153, it sets the content 152 according to the sound information 153 provided from the terminal 20B and associates the content 152 with the playback time 154. That is, the control unit 11 sets different content 152 for each sound information 153 and associates the content 152 with the playback time 154 of the sound information 153. 【0217】 For example, when the control unit 11 receives sound information A from the terminal 20B, it may set link information (for example, URL1) to the letter site 34 for the sound information A and associate the link information with the playback time 154 of the sound information A. Further, when the control unit 11 receives sound information B from the terminal 20B, it may set link information (for example, URL2) to the letter site 34 for the sound information B and associate the link information with the playback time 154 of the sound information B. 【0218】 Furthermore, the control unit 11 may set different message sites 34 for each link information set according to the sound information 153. For example, as shown in Figure 35, the control unit 11 may set different message sites 34 for each link information based on information about user B who transmits the sound information 153 or information about the sound information 153. Furthermore, the control unit 11 transmits information about the message site 34 to the terminal 20A in order to display the message site 34 based on the input for the link information displayed on the terminal 20A. At this time, the control unit 11 may refer to user A's information (for example, the history of messages from user A) based on the input information for the link information and display the message site 34 on the terminal 20A with specific input fields such as the radio name filled in. 【0219】 <Effects of the 7th modified example (1)> In the seventh modified example (1), the control unit 11 of the server 10 performs control to associate the content 152, which is set according to the sound information 153 provided from the terminal 20B, with the playback time 154. As an example of the benefits of this configuration, the control unit 11 of the server 10 can easily manage messages from user A and other sources. 【0220】 <7th variation (2)> In the seventh embodiment, the content 152 consisted of link information to a message site 34 (not limited to, but an example of a site where messages about the sound information 153 are entered), but it is sufficient and not limited to being associated with the playback time 154 of the sound information 153. 【0221】 The seventh modification (2) is a modification in which content 152 includes a content list that includes a partial content of sound information 153 and the playback time of that content. 【0222】 First, similar to the seventh embodiment, the control unit 21 of terminal 20B sends an automatic setup request to the server 10 (C71) and also sends sound information 153 to the server 10 (C72). Here, as shown in Figure 33, user B selects the item 33 "Automatically send content list" in the automatic setup request 32. The content list may include, for example, a partial content of the sound information 153 provided by terminal 20B and the playback time of that content. 【0223】 At this time, as shown in Figure 36, the control unit 11 may divide the sound information 153 into multiple sections based on the content of the sound information 153 and create a content list 35. For example, the control unit 11 may perform speech analysis on the sound information 153 and set delimiter positions where the content of the sound information 153 changes. At this time, the control unit 11 may set the delimiter positions based on, for example, the sound effects included in the sound information 153. As a result, the control unit 11 sets delimiter positions in the sound information 153 between a first section from 0 minutes to 15 minutes, a second section from 15 minutes to 30 minutes, and a third section from 30 minutes to 45 minutes. 【0224】 Next, the control unit 11 may extract characteristic phrases from the first, second, and third sections, respectively, and set content, such as a title, to represent each section. For example, the control unit 11 may set the title of the first section to be "Kabuki talk," the title of the second section to be "casual conversation," and the title of the third section to be "Takarazuka Revue talk." In this way, the control unit 11 creates a content list 35 that divides the content of the sound information 153 into three sections. The control unit 11 may then select the "Kabuki talk" from the first section and the "Takarazuka Revue talk" from the third section as content 152 from the content list 35. As a result, content 152 may be set to include the content list 35 that shows the titles of the first and third sections and the playback times of those titles. The playback times of the first and third sections may be set, for example, to the start time of the first section (0 minutes) and the start time of the third section (30 minutes). 【0225】 When the control unit 11 sets content 152 which includes the content list 35, it associates the content 152 with the playback time 154 of the sound information 153 (B71). For example, the control unit 11 may associate the content 152 with the playback start position (0 minutes) of the sound information 153. Alternatively, the control unit 11 may associate the content 152 with 0 minutes, which indicates the playback time of the first section included in the content list, or with 30 minutes, which indicates the playback time of the third section. 【0226】 Next, the control unit 21 of terminal 20A plays sound information 153 in response to user A's input operation (A1). If content 152 is associated with the start position of sound information 153 playback, then, as shown in Figure 37, content 152 including content list 35 is displayed on the display unit 24 at the same time as the start of sound information 153 playback. 【0227】 The content list 35 displayed on terminal 20A may also include control information for playing the sound information 153 from the displayed playback time. For example, the control unit 21 of terminal 20A may play the 30-minute playback position in the sound information 153 based on user A's input for "30 minutes: A story about the Takarazuka Revue." 【0228】 <Effects of the 7th modified example (2)> In the seventh variation (2), the configured content 152 includes a content list 35 (not limited to, but an example of a list) that shows the partial content of the sound information 153 provided from the terminal 20B and the playback time of that content. One example of the effects of this configuration is that user A, who is listening to sound information 153, can easily grasp the content of the sound information 153. 【0229】 <Seventh variation (3)> In the seventh modification (2), the control unit 11 of the server 10 automatically set all of the contents list 35, but some of the contents list 35 may be set by user B. 【0230】 The 7th modification example (3) is a modification example in which the control unit 11 of the server 10 transmits the content list 35 automatically set to the terminal 20B, and the user B of the terminal 20B modifies the content list 35. 【0231】 First, similar to the 7th embodiment, the control unit 21 of the terminal 20B transmits an automatic setting request to the server 10 (C71) and transmits the sound information 153 to the server 10 (C72). Then, as shown in FIG. 36, the control unit 11 creates a content list 35 in which a delimiter position is set between a first section from 0 minutes to 15 minutes, a second section from 15 minutes to 30 minutes, and a third section from 30 minutes to 45 minutes in the sound information 153. At this time, the control unit 11 does not set the titles of the first section to the third section. 【0232】 Subsequently, the control unit 11 transmits the content list 35 to the terminal 20B so that the user B can modify it. For example, as shown in FIG. 38, the control unit 11 transmits the setting information 37 of the content list 35 including the delimiter positions 36 of the set first section to the third section to the terminal 20B so as to display it on the terminal 20B. Thereby, when the user B desires to change the delimiter position 36, the user B may move the delimiter position 36 to a desired position. Further, the user B may input the contents of the first section to the third section in the input field 38. When the modification of the content list 35 is completed, the control unit 21 of the terminal 20B transmits the content list 35 to the server 10. 【0233】 When the control unit 11 of the server 10 receives the modified content list 35, it associates the content 152 including the content list 35 with the reproduction time 154 of the sound information 153 (B71). Thereby, as shown in FIG. 37, the content 152 including the content list 35 is displayed on the terminal 20A in response to the reproduction of the sound information 153. 【0234】 In the seventh modified example (3), the control unit 11 of the server 10 may set the titles for the first to third sections. The control unit 11 may also send the terminal 20B with the titles for the first to third sections entered in the input field 38 shown in Figure 38. If user B wishes to modify the titles, they may modify the titles for the first to third sections entered in the input field 38. 【0235】 <Effects of the 7th modified example (3)> In the seventh modification (3), the control unit 11 of the server 10 transmits the content list 35 to the terminal 20B so that user B can modify it. As an example of the effects of this configuration, user B can appropriately configure content list 35. 【0236】 <Eighth Embodiment> The eighth embodiment is one in which, when the terminal 20A is operated while the sound information 153 is being played, the control unit 11 of the server 10 converts the content of the played portion into text information and transmits the converted text information to the terminal 20A. Note that components identical to those in the first to seventh embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the eighth embodiment are applicable to any of the other embodiments. 【0237】 <Information Processing> Figure 39 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0238】 First, similar to the first embodiment, the control unit 21 of the terminal 20A plays sound information 153 (A1) and transmits time information indicating the playback position to the server 10 (A2). The control unit 21 may, for example, play the sound information 153 on the chat room CR. 【0239】 Here, if user A requests the transmission of the second content while sound information 153 is being played, the control unit 21 sends a request for the transmission of the second content to the server 10 (A81). For example, as shown in Figure 40A, if user A requests the transmission of the second content, for example by tapping playback information 7, after sound information 153 has been played up to playback time 39, the control unit 11 may send a request for the transmission of the second content corresponding to playback time 39 to the server 10. 【0240】 The transmission request may include, for example, information indicating the playback time 39 of the sound information 153. Furthermore, the second content is not automatically transmitted from the server 10 to the terminal 20A based on the playback time 154 of the sound information 153, but is transmitted from the server 10 to the terminal 20A based on user A's input operation to the terminal 20A. The content of the second content may be set in response to the transmission request, or it may be pre-set by the server 10. 【0241】 Here, the second content is configured to include information obtained by converting the content of the sound information 153 into text information. When the control unit 11 of the server 10 receives a request to send the second content, it sends the second content, which includes the information obtained by converting the content of the sound information 153 into text information, to the terminal 20A (B81). For example, the control unit 11 may convert the content of the sound information 153 corresponding to the playback time 39 that was requested to be sent into text information, and send the second content, which includes this converted information, to the terminal 20A. The control unit 11 may or may not convert the content of the sound information 153 into text information for a predetermined time from the playback time 39. Furthermore, the control unit 11 may or may not convert the content of the sound information 153 into text information for the period from the playback time 39 until the terminal 20A is operated again by user A. 【0242】 When the control unit 21 of terminal 20A receives the second content, it displays the second content on the display unit 24 (A82). For example, as shown in Figure 40B, the control unit 21 may display the second content 40 in the chat room CR following the playback information 7. As a result, the content of the audio information 153 being played will be displayed as text information on the display unit 24 of terminal 20A. 【0243】 <Effects of the 8th Embodiment> In the eighth embodiment, the control unit 11 of the server 10 performs control to transmit the second content 40 to the terminal 20A if the terminal 20A is operated while the sound information 153 is being played. As an example of the effects of this configuration, user A can receive the second content 40 at the desired time. 【0244】 Furthermore, in the eighth embodiment, the second content 40 includes information obtained by converting the content of the sound information 153 into text information. As an example of the effects of this configuration, user A can visually grasp the content of the sound information 153. 【0245】 <Variation 8 (1)> In the eighth embodiment, the second content consisted of information obtained by converting the content of the sound information 153 into text information, but it is not limited to this, as it can be transmitted in response to the operation of the terminal 20A during the playback of the sound information 153. 【0246】 The eighth modification (1) is a modification in which, when the terminal 20A is operated while a specific section of the sound information 153, which is divided into multiple sections, the control unit 11 of the server 10 transmits to the terminal 20A a second piece of content associated with that specific section, for example, a link to a site corresponding to the content of that specific section. 【0247】 First, when the control unit 11 of the server 10 receives sound information 153 provided to the sound information site from terminal 20B, it divides the sound information 153 into multiple sections, similar to the seventh modified example (2). For example, as shown in Figure 41, the control unit 11 may divide the sound information 153 into a first section 41a from 0 to 15 minutes, a second section 41b from 15 to 30 minutes, and a third section 41c from 30 to 45 minutes, based on the content of the sound information 153. The control unit 11 may then set the content of the first section 41a to be a story about Kabuki, the content of the second section 41b to be casual conversation, and the content of the third section 41c to be a story about the Takarazuka Revue. 【0248】 Furthermore, the control unit 11 may associate URL1 of a website related to the Kabuki story in the first section 41a with the first section 41a as second content 40, and associate URL2 of a website related to the Takarazuka Revue story in the third section 41c with the third section 41c as second content 40. Note that the division of the sound information 153, the contents of the multiple sections 41a to 41c, or the association of the second content 40 with the multiple sections 41a to 41c may be set by user B. 【0249】 Next, similar to the eighth embodiment, the control unit 21 of the terminal 20A plays the sound information 153 (A1) and transmits the playback time to the server 10 (A2). The control unit 21 may play the sound information 153 in, for example, the chat room CR. 【0250】 Here, the control unit 21 of terminal 20A sends a request to the server 10 for the transmission of the second content 40 associated with the specific section 41a if user A requests the transmission of the second content 40 while playing a specific section of the sound information 153 which is divided into three sections 41a to 41c (A81). For example, as shown in Figure 42A, the control unit 21 of terminal 20A may send a request to the server 10 for the transmission of the second content 40 associated with the specific first section 41a if user A requests the transmission of the second content 40 while playing a specific first section 41a. 【0251】 Furthermore, the control unit 11 may transmit content information 42 to the terminal 20A indicating whether or not the second content 40 is associated with the current playback position while the sound information 153 is being played. That is, if the control unit 11 is playing the first section 41a or the third section 41c to which the second content 40 is associated, it may transmit content information 42 to the terminal 20A indicating that the second content 40 is associated with the current section. At this time, the control unit 11 may determine whether or not the first section 41a or the third section 41c is being played based on the time information (A2) of the sound information 153 transmitted sequentially from the terminal 20A. As a result, user A can understand the section to which the second content is associated based on the content information 42 and request transmission. 【0252】 When the control unit 11 of the server 10 receives a request to send the second content 40, it sends the second content 40, i.e., URL 1, associated with a specific first section 41a to the terminal 20A (B81). Then, when the control unit 21 of the terminal 20A receives the second content 40, it displays the URL 1 contained in the second content 40 on the display unit 24, as shown in Figure 42B (A82). 【0253】 <Effects of the 8th modified example (1)> In the eighth modified example (1), the control unit 11 of the server 10 transmits the second content 40 associated with the specific first section 41a to the terminal 20A when the terminal 20A is operated while a specific first section 41a of the sound information 153, which is divided into multiple sections 41a to 41c, is being played. As an example of the effects of this configuration, user A can acquire the second content 40 at a desired timing. 【0254】 Furthermore, in the eighth modified example (1), when the control unit 11 of the server 10 is playing the first section 41a or the third section 41c associated with the second content 40 on the terminal 20A, it transmits content information 42 (not limited to, but an example of information indicating the association of the second content 40) to the terminal 20A so that content information 42 indicating the association of the second content 40 is displayed. As an example of the effects of this configuration, when user A requests the transmission of the second content 40, they can reliably recognize the section to which the second content 40 is associated. 【0255】 <Variation 8 (2)> In the eighth modification (1), the sound information 153 was divided into multiple sections 41a to 41c according to its content, but it is sufficient that it be divided into multiple sections, and is not limited to this. 【0256】 The eighth modification (1) is a modification in which, if there is a blank section that is not associated with the second content 40, the control unit 11 of the server 10 sets up multiple sections such that the blank section is included in the section associated with the second content 40. 【0257】 First, similar to the eighth modification (1), when the control unit 11 of the server 10 receives sound information 153 provided to the sound information site from the terminal 20B, it divides the sound information 153 into multiple sections 41a to 41c, as shown in Figure 41. Then, URL1 is associated with the first section 41a as the second content 40, and URL2 is associated with the third section 41c as the second content 40. At this time, the second section 41b becomes a blank section to which no second content is associated. 【0258】 Therefore, if there is a blank section that is not associated with the second content 40, the control unit 11 of the server 10 may set the first section 41a or the third section 41c such that the blank section is included in the first section 41a or the third section 41c associated with the second content 40. For example, as shown in Figure 43, the control unit 11 of the server 10 may set the end point of the first section 41a and the start point of the third section 41c to be in the middle of the blank section. This will set the first section 41a and the third section 41c to be continuous. 【0259】 Next, similar to the eighth embodiment, the control unit 21 of terminal 20A plays the sound information 153 (A1) and transmits time information indicating the playback position to the server 10 (A2). Then, when user A requests the transmission of the second content 40 while a specific section of the sound information 153, which is divided into two sections 41a and 41c, is being played by the control unit 21 of terminal 20A, it transmits a request to the server 10 for the second content 40 associated with that specific section (A81). At this time, since the first section 41a and the third section 41c are set to be consecutive, even if the transmission request is made during the 15-30 minute timeframe indicating casual conversation, URL1 associated with the first section 41a or URL2 associated with the second section 41b will be transmitted to terminal 20A. 【0260】 <Effects of the 8th modified example (2)> In the eighth modified example (2), the control unit 11 of the server 10 sets up multiple sections 41a and 41c such that, if there is a blank section that is not associated with the second content 40, at least one of the multiple sections 41a and 41c associated with the second content 40 contains the blank section. As an example of the effects of this configuration, user A can reliably obtain the second content 40. 【0261】 <Ninth Embodiment> 【0262】 The ninth embodiment is one in which, when multiple contents 152 are associated with sound information 153, the control unit 11 of the server 10 transmits multiple contents 152 to the terminal 20A so that the multiple contents 152 are displayed together. Note that components identical to those in the first to eighth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the ninth embodiment are applicable to any of the other embodiments. 【0263】 First, similar to the first embodiment, the control unit 21 of terminal 20A plays sound information 153 (A1) and transmits time information indicating the playback position to the server 10 (A2). The control unit 21 may play the sound information 153 on, for example, the chat room CR. Subsequently, when the control unit 11 of server 10 receives the time information of the sound information 153 from terminal 20A, it determines, based on that time information, whether or not the sound information 153 has been played up to a predetermined playback time 154 (B1). Here, the sound information 153 is assumed to have three contents 152 associated with three playback times 154a to 154c, specifically URL1 to URL3, as shown in Figure 44A, for example. 【0264】 The control unit 11 of the server 10 sequentially transmits the associated content 152 to the terminal 20A each time playback occurs from each playback time 154a to 154c (B2). The control unit 11 may transmit the content 152 to the terminal 20A so that it is displayed in the chat room CR, for example. Here, if multiple content 152 is associated with the sound information 153, the control unit 11 transmits each of the multiple content 152 to the terminal 20A so that they are displayed as a single unit. As a result, the display unit 24 of the terminal 20A displays the three content 152 as a single unit. The three content 152 may be displayed as a single unit so that at least a portion of them overlap, for example. 【0265】 Furthermore, as shown in Figure 44B, the control unit 21 of terminal 20A may move the three content items 152 so that they are positioned within a wide area in response to user A's operation. The control unit 21 may, for example, move the three content items 152 so that they are aligned vertically. This allows user A to perform input operations on each of the content items 152. 【0266】 Furthermore, the control unit 21 of terminal 20A may maintain a configuration in which the three contents 152 are displayed as a whole even after the playback of the sound information 153 has finished. Also, even after the playback of the sound information 153 has finished, the control unit 21 may move the three contents 152 so that they are positioned over a wide area in response to the operation of user A. 【0267】 <Effects of the 9th Embodiment> In the ninth embodiment, if multiple content items 152 are associated with the sound information 153, the control unit 11 of the server 10 controls the transmission of the multiple content items 152 to the terminal 20A so that the multiple content items 152 are displayed together. One example of the effects of this configuration is that multiple content items 152 can be displayed in an organized manner on terminal 20A. 【0268】 <Tenth Embodiment> The tenth embodiment is one in which, when specific sound information 153 is searched for in the chat room CR on terminal 20A, the specific sound information 153 is sent to terminal 20A so that it can be played in the chat room CR. Note that components identical to those in the first to ninth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the tenth embodiment are applicable to any of the other embodiments. 【0269】 First, as shown in Figure 45A, the control unit 21 of terminal 20A displays the chat room CR on the display unit 24 in response to user A's operation. Here, if specific sound information A is found in the search field 43 of the chat room CR, the control unit 21 sends a request to the server 10 to send that specific sound information A. Subsequently, when the control unit 11 of the server 10 receives the request to send the specific sound information A, it sends playback information 7 of the specific sound information A to terminal 20A so that it can be played in the chat room CR. As a result, the control unit 21 of terminal 20A may display the playback information 7 to play the sound information A on the display unit 24, for example, as shown in Figure 45B. 【0270】 Here, it is assumed that the control unit 21 of terminal 20A has previously played specific sound information A and has already acquired content 152 associated with that playback time 154. Furthermore, the control unit 21 of terminal 20A may be configured to change the display mode of the previously acquired content 152 when specific sound information A is searched for on terminal 20A. For example, the control unit 21 may change the display mode to highlight content 152. 【0271】 The control unit 21 may fix the display portion of the chat room CR display screen that shows the playback information 7, while controlling the other portions to be scrollable. Alternatively, the control unit 21 may automatically scroll the other portions so that the content 152 with the changed display mode is displayed. 【0272】 In this way, when playback information 7 is displayed in the chat room CR, the control unit 21 of terminal 20A plays specific sound information A based on the input operation of user A (A1). Alternatively, the control unit 21 of terminal 20A may, for example, transition to a site associated with content 152 based on the input operation of user A regarding content 152 whose display mode has been changed. 【0273】 In this embodiment, content 152 is set to be highlighted when specific sound information A is searched for on terminal 20A, but is not limited to this. For example, when specific sound information A is searched for on terminal 20A, content 152 may be displayed in relation to the playback information 7 displayed in chat room CR, as shown in Figure 46, by referencing previously acquired content 152. 【0274】 <Effects of the 10th Embodiment> In the tenth embodiment, when a specific sound information A is found in the chat room CR, the control unit 11 of the server 10 performs control to send the specific sound information A to the terminal 20A so that it can be played in the chat room CR. As an example of the effects of this configuration, user A can easily play specific sound information A. 【0275】 Furthermore, in the tenth embodiment, the content 152 is configured to change its display mode when a specific associated sound information A is searched for on the terminal 20A. As an example of the effects of this configuration, user A can easily retrieve content 152. 【0276】 <Embodiment 11> The eleventh embodiment is an embodiment in which content 152 transmitted from server 10 to terminal 20A is shared with other terminals. Note that components identical to those in the first to tenth embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 11th embodiment are applicable to any of the other embodiments. 【0277】 First, similar to the first embodiment, when the control unit 11 of the server 10 determines that the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154, it transmits the content 152 associated with the playback time 154 to the terminal 20A so that the content 152 is displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the content 152 on the display unit 24 (A3). 【0278】 Here, the control unit 21 of terminal 20A may send a content sharing request for content 152 to the server 10 in response to user A's input. For example, as shown in Figure 47A, the control unit 21 of terminal 20A may display a sharing request button 44 for content 152 on the display unit 24. The control unit 21 may then send a content sharing request for content 152 to the server 10 based on user A's input to the sharing request button 44. At this time, the control unit 21 may also send information about the content 152 sharing partner selected by user A (for example, terminal 20 identification information, chat room CR information, etc.) to the server 10 along with the sharing request. User A may, for example, select a user registered in chat room CR as the sharing partner. Here, let's assume user A has selected user C as the content 152 sharing partner. 【0279】 When the control unit 11 of the server 10 receives a request from terminal 20A to share content 152 with user C's terminal 20C, it sends the content 152 to terminal 20C. When the control unit 21 of terminal 20C receives the content 152 from the server 10, it displays the content 152 on the display unit 24. For example, the control unit 21 of terminal 20C may display the content 152 in the chat room CR shared with user A, as shown in Figure 47B. For example, the content 152 may include link information and playback time information 152b. 【0280】 As a result, the control unit 21 of terminal 20C may display the site associated with the sound information 153 on the display unit 24 in response to user C's input operation for link information. Alternatively, the control unit 21 of terminal 20C may play the sound information 153 from the playback time 154 corresponding to the playback time information 152b in response to user C's input operation for playback time information 152b. 【0281】 <Effects of the 11th Embodiment> In the 11th embodiment, when the control unit 11 of the server 10 receives a request from terminal 20A to share the content 152 that it has sent to terminal 20A with terminal 20C, it performs control to send the content 152 to terminal 20C. As an example of the effects of this configuration, user A can easily share content 152 with user C. 【0282】 <Twelfth Embodiment> The twelfth embodiment is an embodiment in which content 152 is set with a password included in the sound information 153, and the user who listens to the sound information 153 can view content 152 by entering the password. Note that components identical to those in the first to eleventh embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the twelfth embodiment are applicable to any of the other embodiments. 【0283】 First, similar to the first embodiment, the control unit 21 of the terminal 20A displays the content 152 on the display unit 24 as shown in Figure 8B (A3). Here, the content 152 may be set to a password included in the sound information 153. 【0284】 For example, the control unit 21 of terminal 20A displays a related site on the display unit 24 based on user A's input operation regarding the link information contained in content 152. A password contained in sound information 153 may be set for this related site. In other words, a password may be set indirectly for content 152. 【0285】 The related website may consist of a campaign website 45 for the sound information 153, as shown in Figure 48. This campaign website 45 may have a password input field 46, and it may be set up so that users can enter the campaign by entering the password contained in the sound information 153 into the password input field 46. The password may be set to include, for example, a phrase introduced in the sound information 153. For example, by entering the phrase "TAKARAZUKA," which was introduced as a password in the sound information 153, into the password input field 46 and clicking the entry button 47, users can enter the campaign. 【0286】 <Effects of the 12th Embodiment> In the twelfth embodiment, the content 152 is set to a password contained in the sound information 153. One example of the effects of this configuration is that it can increase user A's motivation to play the sound information 153. 【0287】 <13th Embodiment> The 13th embodiment is one in which, when a first content is associated with sound information 153, and the sound information 153 is played on the terminal 20A up to the playback time 154 associated with the first content, the control unit 11 of the server 10 transmits, for example, a second content including the first content to the terminal 20A. Note that components identical to those in the first to 12th embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 13th embodiment are applicable to any of the other embodiments. 【0288】 <Functional Configuration> (1) Server Functional Configuration 【0289】 Figure 49 shows an example of information stored in the storage unit 15 of the server 10 in this embodiment. The server main processing program 151, as an example and not an exhaustive one, may include a transmission processing program 1513 as a subroutine program, which is read by the control unit 11 and executed as content transmission processing, instead of the transmission processing program 1512. 【0290】 Furthermore, the memory unit 15 may store, as an example and not limited to, a first content 156 and a second content 157 instead of content 152. 【0291】 The first content 156 is associated with a predetermined playback time 154 of the sound information 153, and may consist of, for example, a portion of the sound information 153 corresponding to the predetermined playback time 154. For example, the first content 156 may or may not consist of link information to a site related to the portion of the sound information 153 corresponding to the predetermined playback time 154 (for example, a website URL (Uniform Resource Locator), URI (Uniform Resource Identifier)). The first content 156 may or may not consist of image information or video information related to the portion of the sound information 153 corresponding to the predetermined playback time 154. The first content 156 may or may not consist of the content of the sound information 153 corresponding to the predetermined playback time 154 converted into text information. 【0292】 Furthermore, the first content 156 may be associated in addition to the third content previously associated with a predetermined playback time of the sound information 153. For example, the first content 156 may be associated in addition through an update of the third content. Also, the first content 156 may consist of a modified version of the third content previously associated with a predetermined playback time of the sound information 153. For example, if the third content is transmitted incorrectly, the first content 156, which is a modified version of the third content, may be newly associated with the sound information 153. Note that the predetermined playback time 154 to which the first content 156 is associated and the predetermined playback time to which the third content is associated may be the same playback position or different playback positions. 【0293】 Furthermore, the first content 156 may be associated with a predetermined playback time 154 by a provider (e.g., user B) that provides sound information 153 to the sound information site. Alternatively, the first content 156 may be automatically associated with a predetermined playback time 154 by the server 10 that manages the sound information site, based on the content of sound information 153, etc. 【0294】 Furthermore, the second content 157 is related to the first content 156 and may include, for example, the first content 156. For example, the second content 157 may consist only of the first content 156, or it may not. Also, the second content 157 may include, or may not include, other content in addition to the first content 156. 【0295】 For example, the first content 156 and the second content 157 may be associated with the playback time 154 of the sound information 153, as shown in Figure 50. Here, sound information A has URL1 associated as the first content 156 at a playback time 154 of 30 minutes. The second content 157 contains only URL1 of the first content 156. Sound information B has URL2 associated as the first content 156 at a playback time 154 of 15 minutes, URL3 and image 1 associated as the first content 156 at a playback time 154 of 30 minutes, and URL4 and video 1 associated as the first content 156 at a playback time 154 of 45 minutes. The second content 157 at a playback time 15 minutes includes URL2 and notification 1, the second content 157 at a playback time 154 of 30 minutes includes URL3, image 1 and notification 2, and the second content 157 at a playback time 154 of 45 minutes includes URL4 and video 1. Audio information C has text information 1 associated as the first content 156 at a playback time of 10 minutes 154, and text information 2 associated as the first content 156 at a playback time of 30 minutes 154. Furthermore, the second content 157 at a playback time of 10 minutes 154 contains only text information 1, and the second content 157 at a playback time of 30 minutes 154 contains only text information 2. 【0296】 Figure 51 shows an example of a function realized by the control unit 11 of the server 10 in this embodiment. The control unit 11 may, for example, have a transmission processing unit 114 instead of a transmission processing unit 113. When a first content 156 is associated with sound information 153, the transmission processing unit 114 controls the transmission of the second content 157 to the terminal 20A if the sound information 153 is played by the terminal 20A up to the playback time 154 associated with the first content 156. 【0297】 (2) Terminal Functional Configuration 【0298】 Figure 52 shows an example of information stored in the storage unit 28 of terminal 20A in this embodiment. The terminal main processing program 281, as an example and not an exhaustive one, may include a subroutine program, a receiving processing program 2813, which is read by the control unit 21 and executed as content receiving processing, instead of the receiving processing program 2812. 【0299】 Figure 53 shows an example of a function realized by the control unit 21 of terminal 20A in this embodiment. The control unit 21 may, for example, have a receiving processing unit 214 instead of a receiving processing unit 213. When a first content 156 is associated with sound information 153, the receiving processing unit 214 controls the receiving of the second content 157 from the server 10 if the sound information 153 is played by the terminal 20A up to the playback time 154 associated with the first content 156. 【0300】 <Information Processing> Figure 54 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0301】 First, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). Here, the first content 156 is assumed to be associated in addition to the third content that was previously associated with the predetermined playback time of the sound information 153. For example, the first content 156 may be associated in addition to the sound information 153 by updating the third content. 【0302】 The control unit 11 determines whether the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156, if the first content 156, which has been updated with the third content, is associated with the sound information 153 (B132). The control unit 11 may, for example, determine whether the sound information 153 has been played by the terminal 20A up to the playback time 154 in the past, based on the playback history of user A stored in the storage unit 15, or it may not. 【0303】 Here, if user A has previously played the sound information 153 up to a predetermined playback time 154, the third content 158 ​​before the update will already be displayed on terminal 20A, as shown in step A3 of the first embodiment. For example, as shown in Figure 55A, the URL0 before the update may be displayed as the third content 158 ​​in the chat room CR on terminal 20A. 【0304】 Therefore, in step B132, if the control unit 11 determines that the sound information 153 has already been played by the terminal 20A up to a predetermined playback time 154, it sends the second content 157 to the terminal 20A (B133). On the other hand, if the control unit 11 determines that the sound information 153 has not been played by the terminal 20A up to a predetermined playback time 154, it does not need to send the second content 157 to the terminal 20A because the third content 158 ​​before the update is not displayed to the terminal 20A. For this reason, the control unit 11 repeats the determination in step B132 until the sound information 153 is newly played by the terminal 20A up to a predetermined playback time 154. Here, the second content 157 may include the first content 156. When the control unit 21 of the terminal 20A receives the second content 157 including the first content 156, it displays the second content in the chat room CR (A131). 【0305】 At this time, the control unit 11 of the server 10 may, for example, send the second content 157 to terminal 20A so as to overwrite the third content 158 ​​that was previously displayed on terminal 20A with the first content 156. As a result, the control unit 21 of terminal 20A displays the updated first content 156 in the chat room CR, replacing the third content 158 ​​before the update, as shown in Figure 55B. 【0306】 Furthermore, the control unit 11 of the server 10 may, for example, send the second content 157 to the terminal 20A so that the first content 156 is displayed together with the third content 158 ​​that was previously displayed on the terminal 20A. In this case, the second content 157 may or may not include a notification indicating that the first content 156 has been newly added, for example, by an update. 【0307】 In this embodiment, if the control unit 11 of the server 10 determines in step B132 that the sound information 153 has not been played by the terminal 20A by the predetermined playback time 154, it repeats the determination until the sound information 153 is newly played by the terminal 20A by the predetermined playback time 154. However, it is not limited to this. For example, if the control unit 11 determines that the sound information 153 has not been played by the terminal 20A by the predetermined playback time 154, it may terminate the process without repeating the determination. 【0308】 <Effects of the 13th Embodiment> In the 13th embodiment, the server 10 includes a control unit 11 that performs control to transmit the second content 157 to the terminal 20A when the first content 156 is associated with the sound information 153 and the sound information 153 is played by the terminal 20A up to the playback time 154 associated with the first content 156. As an example of the effects of this configuration, user A can easily obtain the second content 157 related to the first content 156. 【0309】 In the 13th embodiment, the second content 157 includes the first content 156. As an example of the effects of this configuration, user A can easily obtain the first content 156. 【0310】 <13th variation (1)> The 13th modification (1) is a modification in which, when the first content 156 is associated with the sound information 153, the control unit 11 of the server 10 sends a notification to the terminal 20A indicating the association of the first content 156. 【0311】 <Information Processing> Figure 56 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0312】 First, similar to the 13th embodiment, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). Subsequently, the control unit 11 sends a change notification to the terminal 20A indicating the association of the first content 156 (B134). 【0313】 For example, the control unit 11 may refer to the user's playback history stored in the memory unit 15 and send a change notification to a user who has previously played the sound information 153, even if they have not played it until the predetermined playback time 154. Alternatively, the control unit 11 may refer to the registration information of the sound information 153 stored in the memory unit 15 (e.g., favorites information, bookmark information, etc.) and send a change notification to a user who has registered the sound information 153. Furthermore, the control unit 11 may refer to the user's registration information to the sound information site (e.g., membership registration information, etc.) and send a change notification to a user who is registered on the sound information site. 【0314】 Here, the control unit 11 may stop sending the change notification if the sound information 153 has been played by the terminal 20A up to a predetermined playback time 154. For example, the control unit 11 may determine whether the sound information 153 has been played up to the playback time 154 in the past based on the playback history of user A stored in the storage unit 15. If the control unit 11 determines that the sound information 153 has been played up to the playback time 154 in the past, it may stop sending the change notification. 【0315】 Next, when the control unit 21 of terminal 20A receives a change notification sent from server 10, it displays the change notification on the display unit 24 (A132). For example, as shown in Figure 57, the control unit 21 may display the change notification 51 in the chat room CR following the playback information 7 that plays the sound information 153. 【0316】 <Effects of the 13th modified example (1)> In the 13th modified example (1), the control unit 11 of the server 10 performs control to send a change notification (not limited to, but an example of a notification indicating the association of the first content 156) to the terminal 20A when the first content 156 is associated with the sound information 153. As an example of the effects of this configuration, user A can easily understand the associations of the first content 156. 【0317】 Furthermore, in the 13th variation (1), the control unit 11 of the server 10 performs control to stop sending the change notification if the sound information 153 has been played by the terminal 20A up to the playback time 154. As an example of the effects of this configuration, user A can understand the association with the first content 156 by obtaining the second content 157, thus reducing the need to send the same information in change notifications. 【0318】 <14th Embodiment> In the 13th embodiment, the first content 156 is associated in addition to the third content 158 ​​that was previously associated with the sound information 153, but it is sufficient, and not limited to, being associated with a predetermined playback time 154 of the sound information 153. 【0319】 The 14th embodiment is one in which, when the control unit 11 of the server 10 modifies the third content 158, it associates the first content 156, which is the modified third content 158, with a predetermined playback time 154 of the sound information 153. Note that components identical to those in the first to 13th embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 14th embodiment are applicable to any of the other embodiments. 【0320】 First, similar to the 13th embodiment, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). Here, the first content 156 is assumed to have been associated by modifying the third content 158 ​​that was previously associated with the predetermined playback time of the sound information 153. The first content 156 may also be, for example, a corrected version of the third content 158 ​​if there was an error (e.g., incorrect URL transmission, incorrect selection, incorrect spelling, etc.). 【0321】 Next, the control unit 11 determines whether the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156 (B132). The control unit 11 may, for example, determine whether the sound information 153 has been played by the terminal 20A up to the playback time 154 in the past, based on the playback history of user A stored in the storage unit 15, or it may not. 【0322】 In this case, if user A has previously played the audio information 153 up to a predetermined playback time 154, then, as shown in Figure 55A, the erroneous third content 158 ​​will already be displayed in the chat room CR. 【0323】 Therefore, in step B132, if the control unit 11 determines that the sound information 153 has already been played by the terminal 20A up to a predetermined playback time 154, it transmits the second content 157 to the terminal 20A (B133). On the other hand, if the control unit 11 determines that the sound information 153 has not been played by the terminal 20A up to a predetermined playback time 154, it repeats the determination in step B132 until the sound information 153 is newly played by the terminal 20A up to a predetermined playback time 154. Then, when the control unit 21 of the terminal 20A receives the second content 157, which includes the first content 156, it displays the second content 157 in the chat room CR (A131). 【0324】 In this case, the control unit 11 may send the second content 157, which includes the first content 156 and the modification notice, to the terminal 20A so that the first content 156, which is a modified version of the third content 158, and the modification notice regarding the modification of the third content 158, are displayed in the chat room CR. For example, if the third content 158 ​​is modified after it has been displayed in the chat room CR, the control unit 11 may send the second content 157, which includes the first content 156 and the modification notice, to the terminal 20A. 【0325】 As a result, the control unit 21 of terminal 20A may display the first content 156 and the correction notification 52 following the third content 158, as shown in Figure 58. In this case, the correction notification 52 may include, for example, content indicating that the third content 158 ​​has been corrected to the first content 156. Alternatively, the control unit 21 may display the first content 156 and the correction notification 52 by referencing the third content 158 ​​that was previously displayed in the chat room CR. For example, the control unit 21 may duplicate the third content that was previously displayed in the chat room CR and reply to the duplicated third content 158 ​​by hanging the newly sent first content 156 and correction notification 52 below it. That is, the control unit 21 may display the first content 156 and the correction notification 52 so that they are arranged consecutively below the quoted third content 158. 【0326】 <Effects of the 14th Embodiment> In the 14th embodiment, if the third content 158 ​​associated with the sound information 153 is modified after it has been displayed in the chat room CR, the control unit 11 of the server 10 controls the transmission of a second content 157, which includes the first content 156 and a modification notification 52 (not limited to, but an example of a notification regarding a modification), to the terminal 20A, so that the first content 156 with the modified third content 158 ​​and a modification notification 52 (not limited to, but an example of a notification regarding a modification) are displayed in the chat room CR. As an example of the effects of this configuration, user A can easily understand that the third content 158 ​​has been modified into the first content 156. 【0327】 <14th variation (1)> The 14th variation (1) is a variation that removes the third content 158 ​​from the chat room CR if it is modified after it has been displayed in the chat room CR. 【0328】 First, similar to the 14th embodiment, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). Here, the first content 156 is assumed to have been associated by modifying the third content 158 ​​that was previously associated with the predetermined playback time of the sound information 153. 【0329】 Next, the control unit 11 of the server 10 determines whether the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156 (B132). If the control unit 11 determines that the sound information 153 has already been played by the terminal 20A up to the predetermined playback time 154 in the past, then, as shown in Figure 55A, the third content 158 ​​containing the error will already be displayed in the chat room CR. 【0330】 Therefore, in step B132, if the control unit 11 determines that the sound information 153 has already been played by the terminal 20A up to a predetermined playback time 154, it transmits the second content 157 to the terminal 20A (B133). At this time, the second content 157 may include, for example, the first content 156 which is a modified version of the third content 158, and control information to delete the third content 158. That is, if the third content 158 ​​which was previously associated with the sound information 153 is modified after it has been displayed in the chat room CR, the control unit 11 transmits the second content 157 which includes control information to delete the third content 158 ​​from the chat room CR to the terminal 20A. Also, the control unit 11 transmits the second content 157 which includes the first content 156 so that the first content 156 which is a modified version of the third content 158 ​​is displayed in the chat room CR. 【0331】 When the control unit 21 of terminal 20A receives the second content 157 transmitted from server 10, it deletes the third content 158 ​​from chat room CR based on a control signal, as shown in Figure 59, and displays the first content 156 in the display position of the third content 158 ​​(A131). 【0332】 <Effects of the 14th modified example (1)> In the 14th variation (1), the control unit 11 of the server 10 controls the deletion of the third content 158 ​​from the chat room CR if the third content 158 ​​associated with the sound information 153 is modified after it has been displayed in the chat room CR. One example of the effects of this configuration is that it can reliably prevent user A from interacting with the incorrect third content 158. 【0333】 Furthermore, in the 14th modified example (1), the control unit 11 of the server 10 controls the transmission of the second content 157, which includes the first content 156, to the terminal 20A so that the first content 156, which is a modified version of the third content 158, is displayed in the chat room CR. As an example of the effects of this configuration, user A can easily understand the modified first content 156. 【0334】 <15th Embodiment> The 15th embodiment is one in which, when the first content 156 is associated with sound information 153 due to modification of the third content 158, the control unit 11 of the server 10 waits for the sound information 153 to be played until playback time 154, and then transmits the second content 157 to the terminal 20A. Note that components identical to those in the first to 14th embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 15th embodiment are applicable to any of the other embodiments. 【0335】 <Information Processing> Figure 60 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0336】 First, similar to the first embodiment, if the third content 158 ​​is associated with sound information 153 and the terminal 20A determines that the sound information 153 has been played until a predetermined playback time 154, the control unit 11 of the server 10 transmits the third content 158 ​​to the terminal 20A so that the third content 158 ​​is displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the third content 158 ​​on the display unit 24 (A3). At this time, the control unit 11 of the server 10 may, for example, transmit the third content 158 ​​to the terminal 20A each time the sound information 153 has been played until the playback time 154. 【0337】 Next, similar to the 13th embodiment, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). Here, the first content 156 is assumed to have been associated by modifying the third content 158 ​​that was previously associated with the predetermined playback time of the sound information 153. 【0338】 Then, the control unit 11 determines whether or not the sound information 153 has been newly played by the terminal 20A (B151). The control unit 11 repeats the determination in step B151 until it determines that the sound information 153 has been newly played. 【0339】 Here, the control unit 21 of terminal 20A plays new sound information 153 based on the input operation of user A (A151), and sends time information indicating the playback position of sound information 153 to the server 10 (A152). When the control unit 11 of server 10 receives the time information of sound information 153, it determines that sound information 153 has been newly played. 【0340】 When the control unit 11 of the server 10 determines that sound information 153 has been newly played, it determines, based on the time information of the sound information 153, whether or not the sound information 153 has been played by the terminal 20A until a predetermined playback time 154 (B132). The control unit 11 repeats the determination in step B132 until it determines that the sound information 153 has been played until a predetermined playback time 154. Then, when the control unit 11 determines that the sound information 153 has been played until a predetermined playback time 154, it transmits the second content 157 to the terminal 20A so that the second content 157 is displayed to the terminal 20A (B133). 【0341】 Thus, if the control unit 11 is configured to send the third content 158 ​​to the terminal 20A each time the sound information 153 is played up to the playback time 154, when the first content 156 is newly associated with the sound information 153, the control unit 11 waits for the sound information 153 to be played again before sending the second content 157. In other words, the control unit 11 does not immediately send the second content 157 to the terminal 20A when the first content 156 is associated with the sound information 153, but waits for user A to play the sound information 153 up to the playback time 154 before sending the second content 157 to the terminal 20A. 【0342】 Here, the control unit 11 may transmit the second content 157, which includes the first content 156 and the correction notification, to the terminal 20A so that the second content 157 is displayed. As a result, the control unit 21 of the terminal 20A may display the first content 156 and the correction notification 52 following the third content 158, for example, as shown in Figure 58. 【0343】 Furthermore, the control unit 11 may transmit the second content 157 to the terminal 20A so that the second content 157 is displayed by referencing the third content 158. For example, the control unit 21 of the terminal 20A may reply to the first content 156 and the correction notification 52, as shown in Figure 61, by hanging them above the third content 158 ​​that was previously displayed in the chat room CR. That is, the control unit 21 may display the first content 156 and the correction notification 52 so that they are arranged consecutively below the referenced third content 158 ​​(A131). 【0344】 <Effects of the 15th Embodiment> In the 15th embodiment, if the third content 158 ​​is associated with the sound information 153 before the first content 156, the control unit 11 of the server 10 performs control to transmit the third content 158 ​​to the terminal 20A if the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the third content 158. As an example of the effects of this configuration, user A can easily obtain the third content 158. 【0345】 Furthermore, in the 15th embodiment, the control unit 11 of the server 10 controls the transmission of the second content 157 to the terminal 20A when the first content 156 is associated with the sound information 153 due to the modification of the third content 158, and the sound information 153 has been played by the terminal 20A up to the playback time 154. As an example of the effects of this configuration, user A can acquire the second content 157 when playing sound information 153. 【0346】 Furthermore, in the 15th embodiment, the control unit 11 of the server 10 performs control to transmit the second content 157 to the terminal 20A so that the second content 157 is displayed by referencing the third content 158. As an example of the effects of this configuration, user A can reliably recognize the second content 157. 【0347】 <16th Embodiment> The 16th embodiment is an embodiment in which the control unit 11 of the server 10 sets an expiration date for the association between sound information 153 and the first content 156. For example, the control unit 11 of the server 10 sets a maintenance period for maintaining the association between sound information 153 and the first content 156, and deletes the association with the first content 156 when that maintenance period has elapsed. Note that components identical to those in the first to 15th embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 16th embodiment are applicable to any of the other embodiments. 【0348】 <Information Processing> Figure 62 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0349】 First, similar to the 13th embodiment, the control unit 11 of the server 10 associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). For example, the control unit 11 may associate the first content 156 with the sound information 153 based on the settings of user B who posts the sound information 153 to the sound information site. The first content 156 may be the first to be associated with the predetermined playback time 154 of the sound information 153, or it may be associated after the third content 158 ​​has been associated. 【0350】 Here, the control unit 11 sets a maintenance period for maintaining the association between the sound information 153 and the first content 156 (B161). For example, consider the case where the first content 156 concerning the sale of tickets for a Takarazuka Revue performance is associated with a predetermined playback time 154 in the sound information 153 that announces a Takarazuka Revue performance. For example, as shown in Figure 63, if the ticket sales period for the performance is from July 5 to July 15, user B may set the maintenance period for the association of the first content 156 to the end of the sales period on July 15. 【0351】 Meanwhile, the control unit 21 of terminal 20A plays new sound information 153 based on the input operation of user A (A161), and transmits time information indicating the playback position of sound information 153 to the server 10 (A162). 【0352】 When the control unit 11 of the server 10 receives the time information of the sound information 153, it determines whether the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156 (B132). The control unit 11 repeats the determination in step B132 until it is determined that the sound information 153 has been played up to the predetermined playback time 154. 【0353】 If the control unit 11 determines that the sound information 153 has been played until a predetermined playback time 154, it determines whether the maintenance period set for the first content 156 has expired (B162). If the control unit 11 determines that the maintenance period has not expired, i.e., that it is before July 15, it transmits the second content 157, which includes the first content 156, to the terminal 20A so that the second content 157 is displayed on the terminal 20A (B133). As a result, the control unit 21 of the terminal 20A displays the second content 157, which includes the first content 156, on the display unit 24 following the playback information 7 that plays the sound information 153, as shown in Figure 64. For example, the control unit 21 may transition to a site that sells tickets for Takarazuka Revue performances based on user A's input operation for the first content 156. 【0354】 On the other hand, if the control unit 11 determines that the maintenance period has expired, that is, that July 15th has passed, it deletes the association of the first content 156 with the sound information 153 (B163). As a result, the control unit 11 does not send the second content 157 to the terminal 20A, so for example, a site selling tickets for Takarazuka Revue performances will not be displayed on the terminal 20A after July 15th, when the ticket sales period ends. 【0355】 In this embodiment, the control unit 11 of the server 10 sets a retention period for one first content 156, but it is also possible to set multiple retention periods for multiple first content 156. For example, if multiple first content 156 are associated with multiple playback times 154 of sound information 153, the control unit 11 may set multiple retention periods for each of those multiple first content 156. 【0356】 <Effects of the 16th Embodiment> In the 16th embodiment, the control unit 11 of the server 10 performs control to remove the association of the first content 156 with the sound information 153. As an example of the effects of this configuration, the control unit 11 of the server 10 can configure the association of the first content in detail. 【0357】 Furthermore, in the 16th embodiment, the control unit 11 of the server 10 performs control to delete the association of the first content 156 when the maintenance period set for the association between the sound information 153 and the first content 156 has elapsed (this is not limited to, but is an example of a period set for the association). As an example of the effects of this configuration, the control unit 11 of the server 10 can configure the association of the first content in more detail. 【0358】 <16th Variation (1)> The 16th modification (1) is a modification in which, when the control unit 11 of the server 10 has exceeded the maintenance period set for the association between the sound information 153 and the first content 156, it replaces the first content 156 with a new content and associates it with the sound information 153. 【0359】 First, similar to the 16th embodiment, the control unit 11 of the server 10 determines whether the maintenance period set for the first content 156 has expired (B162). Here, if the control unit 11 determines that the maintenance period has expired, that is, that July 15th has passed, it may associate new content with the predetermined playback time 154 of the sound information 153 in place of the first content 156. The new content may consist of, for example, an end notification informing that ticket sales have ended. 【0360】 When new content is associated with sound information 153, the control unit 11 transmits the second content 157, which includes the new content, to the terminal 20A (B133). As a result, the control unit 21 of the terminal 20A displays the second content 157, which includes the new content, on the display unit 24. For example, as shown in Figure 65, the control unit 21 may display a termination notice 200 on the display unit 24, stating, "Ticket sales have ended." 【0361】 <Effects of the 16th modified example (1)> In the 16th modified example (1), the control unit 11 of the server 10 performs control to associate new content with the sound information 153 in place of the first content 156 if the maintenance period set for the association between the sound information 153 and the first content 156 has elapsed. As an example of the effects of this configuration, the control unit 11 of the server 10 can send appropriate content to user A according to the expiration of the maintenance period. 【0362】 <16th Variation (2)> In the 16th embodiment, the control unit 11 of the server 10 deleted the association of the first content 156 with the sound information 153, but it is sufficient to set an expiration date for the association between the sound information 153 and the first content 156, and is not limited to this. 【0363】 The 16th modification (2) is a modification in which the control unit 11 of the server 10 associates the first content 156 with the sound information 153. For example, the control unit 11 of the server 10 sets a start deadline for the association between the sound information 153 and the first content 156, and performs the association with the first content 156 when that start deadline has passed. 【0364】 <Information Processing> Figure 66 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0365】 First, the control unit 11 of the server 10 sets a start deadline (B164) for associating the sound information 153 stored in the storage unit 15 with the first content 156. That is, the association between the sound information 153 and the first content 156 is in a released state, and the control unit 11 sets a start deadline for performing that association. For example, the control unit 11 may set a start deadline for performing the association of the first content 156 based on a request from user B who provides the sound information 153 to the sound information site, and may also pre-set a playback time 154 for associating the first content 156 with that start deadline. 【0366】 For example, consider a case where a start deadline is set for associating the first content 156, which relates to the sale of tickets for a Takarazuka Revue performance, with a predetermined playback time 154 in the sound information 153 that announces the performance. For example, as shown in Figure 67, if ticket sales for the performance start on July 5th, user B may set the start deadline for associating the first content 156 to the start of sales on July 5th. 【0367】 Next, the control unit 11 determines whether the start deadline has passed (B165). The control unit 11 repeats the determination in step B165 until it determines that the start deadline has passed. If the control unit 11 determines that the start deadline has passed, it associates the first content 156 with a predetermined playback time 154 of the sound information 153 stored in the storage unit 15 (B131). For example, the control unit 11 may associate the first content 156 with the sound information 153 based on the settings of user B who provides the sound information 153 to the sound information site. The first content 156 may be the first to be associated with the predetermined playback time 154 of the sound information 153, or it may be associated after the third content 158 ​​has been associated. 【0368】 Here, the control unit 21 of terminal 20A plays sound information 153 based on the input operation of user A (A161), and then sends time information indicating the playback position of sound information 153 to the server 10 (A162). If the control unit 11 of server 10 receives the time information of sound information 153 at a time T1 before the start deadline, the association of the first content 156 with sound information 153 is released, and therefore the second content 157, which includes the first content 156, is not sent to terminal 20A. 【0369】 On the other hand, if the control unit 11 receives time information of sound information 153 at time T2 after the start deadline has passed, it determines whether or not the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156 (B132). The control unit 11 repeats the determination in step B132 until it determines that the sound information 153 has been played up to the predetermined playback time 154. 【0370】 When the control unit 11 determines that the sound information 153 has been played until a predetermined playback time 154, it transmits the second content 157, which includes the first content 156, to the terminal 20A so that the second content 157 is displayed on the terminal 20A (B133). As a result, the control unit 21 of the terminal 20A displays the second content 157, which includes the first content 156, on the display unit 24 following the playback information 7 that plays the sound information 153 (A131), as shown in Figure 64. For example, the control unit 21 may transition to a site that sells tickets for Takarazuka Revue performances based on user A's input operation for the first content 156. 【0371】 In this embodiment, the control unit 11 of the server 10 sets a start deadline for one first content 156, but it is also possible to set multiple start deadlines for multiple first content 156. For example, if multiple first content 156 are associated with multiple playback times 154 of sound information 153, the control unit 11 may set multiple start deadlines for each of those multiple first content 156. 【0372】 <Effects of the 16th modified example (2)> In the 16th modified example (2), the control unit 11 of the server 10 performs control to associate the first content 156 with the sound information 153. As an example of the effects of this configuration, the control unit 11 of the server 10 can configure the association of the first content in detail. 【0373】 Furthermore, in the 16th modified example (2), the control unit 11 of the server 10 performs control to associate the first content 156 with the sound information 153 when the start deadline set for the association between the sound information 153 and the first content 156 has elapsed (this is not limited to, but is an example of a deadline set for the association). As an example of the effects of this configuration, the control unit 11 of the server 10 can configure the association of the first content in more detail. 【0374】 Furthermore, in the 16th modified example (2), the control unit 11 of the server 10 performs control to transmit the second content to the terminal 20A if the start deadline has passed and the sound information 153 has been played by the terminal 20A up to the playback time 154. One example of the effects of this configuration is that user A can reliably obtain the second content after the start deadline has passed. 【0375】 <16th variation (3)> In the 16th modified example (2), the control unit 11 of the server 10 was controlled not to transmit the second content 157 to the terminal 20A if it received the time information of the sound information 153 at a time T1 before the start deadline, but it is not limited to this. 【0376】 In the 16th variation (3), if the sound information 153 is played on terminal 20A before the start deadline, and the sound information 153 has already been played up to the playback time 154 when the start deadline has passed, the control unit 11 of server 10 transmits the second content 157 to terminal 20A. 【0377】 First, similar to the 16th modified example (2), the control unit 11 of terminal 20A plays sound information 153 based on the input operation of user A (A161), and transmits time information indicating the playback position of sound information 153 to server 10 (A162). Here, if the control unit 11 of server 10 receives the time information of sound information 153 at a time T1 before the start deadline, it stores that time information in the storage unit 15. 【0378】 Next, if the control unit 11 determines that the start deadline has passed, it associates the first content 156 with a predetermined playback time 154 of the sound information 153 (B131). Then, the control unit 11 determines whether the sound information 153 has been played by the terminal 20A up to the playback time 154 associated with the first content 156 (B132). At this time, the control unit 11 refers to the time information of the sound information 153 stored in the storage unit 15 and determines whether the sound information 153 has already been played by the terminal up to the playback time 154 at the time the start deadline has passed. If the control unit 11 determines that the sound information 153 has been played up to the playback time 154 at the time the start deadline has passed, it transmits the second content 157, including the first content 156, to the terminal 20A so that it is displayed to the terminal 20A (B133). On the other hand, if the control unit 11 determines that the sound information 153 has not been played by the playback time 154 after the start deadline has passed, it terminates processing without transmitting the second content 157. 【0379】 <Effects of the 16th modified example (3)> In the 16th modified example (3), the control unit 11 of the server 10 performs control to send the second content 157 to the terminal 20A if the sound information 153 has been played by the terminal 20A up to the playback time 154 when the start deadline has passed. One example of the effects of this configuration is that user A can reliably acquire the second content once the start deadline has passed. 【0380】 <16th variation (4)> The 16th modification (4) is a modification in which the control unit 11 of the server 10 sends a second content 157 to the terminal 20A, which includes a notification indicating that the maintenance period or start period has expired, when the maintenance period or start period has expired. 【0381】 First, similar to the 16th embodiment, the control unit 11 of the server 10 determines whether the maintenance period set for the first content 156 has expired (B162). Then, if the control unit 11 determines that the maintenance period has not expired, for example, if it determines that it is before July 15th in Figure 63, it sends the second content 157 to the terminal 20A (B133). As a result, the first content 156, which consists of a URL, for example, is displayed on the terminal 20A, as shown in Figure 64. 【0382】 Next, the control unit 11 transmits the second content 157 to the terminal 20A and then determines whether the maintenance period set for the first content 156 has expired. If the control unit 11 determines that the maintenance period has expired, it transmits an expiration notification to the terminal 20A so that an expiration notification (not limited to, but an example of a notification indicating that the period has expired) is displayed on the terminal 20A. For example, as shown in Figure 68, the control unit 11 may transmit an expiration notification 53 to the terminal 20A so that the expiration notification 53 is displayed on the first content 156. 【0383】 Furthermore, similar to the 16th modified example (3), the control unit 11 of terminal 20A plays sound information 153 based on the input operation of user A (A161), and transmits time information indicating the playback position of sound information 153 to server 10 (A162). Here, if the control unit 11 of server 10 receives the time information of sound information 153 at a time T1 before the start deadline, it stores that time information in the storage unit 15. 【0384】 Next, if the control unit 11 determines that the start deadline has passed, it associates the first content 156 with a predetermined playback time 154 of the sound information 153 (B131). Then, the control unit 11 refers to the time information of the sound information 153 stored in the storage unit 15 and determines whether the sound information 153 has already been played by the terminal up to the playback time 154 at the time the start deadline has passed. If the control unit 11 determines that the sound information 153 has been played up to the playback time 154 at the time the start deadline has passed, it sends an elapsed notification to the terminal 20A so that an elapsed notification (not limited to, but an example of a notification indicating that the deadline has passed) is displayed on the terminal 20A. For example, as shown in Figure 69, the control unit 11 may send an elapsed notification 54 to the terminal 20A so that the elapsed notification 54 is displayed following the playback information 7 of the sound information 153. 【0385】 <Effects of the 16th modified example (4)> In the 16th modified example (4), the control unit 11 of the server 10 performs control to send a second content 157, which includes a notification indicating that the deadline has expired, to the terminal 20A when the deadline has passed. One example of the benefits of this configuration is that user A can reliably recognize when the deadline has passed. 【0386】 <Embodiment 17> The 17th embodiment is one in which, when the first content 156 is associated with the sound information 153 in addition to the third content 158 ​​associated with the sound information 153, the second content 157 including the first content 156 is transmitted to the terminal 20A so that the first content 156 is displayed by referencing the third content 158. Note that components identical to those in the first to 16th embodiments are denoted by the same reference numerals and their further explanation is omitted. The contents described in the 17th embodiment are applicable to any of the other embodiments. 【0387】 <Information Processing> Figure 70 is a flowchart showing an example of the processing flow performed by each device in this embodiment. 【0388】 First, similar to the first embodiment, if the third content 158 ​​is associated with sound information 153 and the terminal 20A determines that the sound information 153 has been played back until a predetermined playback time 154, the control unit 11 of the server 10 transmits the third content 158 ​​to the terminal 20A so that the third content 158 ​​is displayed on the terminal 20A (B2). As a result, the control unit 21 of the terminal 20A displays the third content 158 ​​on the display unit 24 (A3). 【0389】 Here, the sound information 153 provides, for example, a topic about a butterfly pupa that user B is observing, and the third content 158 ​​is associated with a predetermined playback time 154 of the sound information 153, with an image of the pupa. As a result, the terminal 20A displays the third content 158, which consists of the image of the pupa, as shown in Figure 71A. 【0390】 Furthermore, when the control unit 11 of the server 10 receives the first content 156 in addition to the third content 158 ​​from user B, who provides the sound information 153, it associates the first content 156 with a predetermined playback time 154 of the sound information 153 according to user B's settings (B131). Here, the first content 156 may consist of, for example, content related to the third content 158 ​​(for example, consecutive content). For example, when a pupa hatches into a butterfly, user B may add an image of a butterfly following the image of the pupa in the third content 158 ​​as the first content 156. 【0391】 Next, the control unit 21 of terminal 20A plays sound information 153 based on the input operation of user A (A151) and sends time information indicating the playback position of sound information 153 to the server 10 (A152). Then, the control unit 11 of server 10 determines, based on the time information of sound information 153, whether or not sound information 153 has been played by terminal 20A up to a predetermined playback time 154 (B132). The control unit 11 repeats the determination in step B132 until it is determined that sound information 153 has been played up to the predetermined playback time 154. If the control unit 11 determines that sound information 153 has been played up to the predetermined playback time 154, it sends the second content 157, which includes the first content 156, to terminal 20A so that the first content 156 is displayed to terminal 20A by referencing the third content 158 ​​that was previously displayed in chat room CR (B133). Furthermore, if user A has previously played the sound information 153 up to a predetermined playback time 154, the control unit 11 may transmit the second content 157, which includes the first content 156, to the terminal 20A at the time the first content 156 is associated with the sound information 153. In other words, steps A151 and A152 may be omitted. 【0392】 As a result, the control unit 21 of terminal 20A may, for example as shown in Figure 71B, reference the third content 158 ​​that was previously displayed in chat room CR and display the first content 156 in chat room CR (A131). The control unit 21 may, for example, display the first content 156 so that it is aligned below the referenced third content 158. 【0393】 Furthermore, the control unit 11 of the server 10 may transmit the second content 157 to the terminal 20A so that the second content 157 is displayed by referencing the fourth content based on the third content 158. For example, as shown in Figure 72, the control unit 11 may transmit the second content 157 to the terminal 20A so that the first content 156 is displayed by referencing the fourth content 159 based on the third content 158 ​​that was displayed in the past, for example, the fourth content 159 which is a copy of the third content 158. For example, the first content 156 may be displayed as a reply, hanging below the referenced fourth content 159. That is, the first content 156 may be displayed so that it is lined up consecutively below the fourth content 159. 【0394】 In this embodiment, the control unit 11 of the server 10 displays the first content 156 by referencing the third content 158, but it is not limited to this and is sufficient to display the first content 156 in correspondence with the third content 158. For example, as shown in Figure 73A, the control unit 11 transmits the second content 157, which includes the first content 156, to the terminal 20A while other content 158a is displayed on the terminal 20A following the third content 158. In this case, as shown in Figure 73B, the control unit 11 may transmit the second content 157, which includes the first content 156, to the terminal 20A so that the first content 156 is inserted between the third content 158 ​​and the other content 158a. As a result, the third content 158 ​​and the first content 156, which have related content, are displayed corresponding to the terminal 20A. 【0395】 <Effects of the 17th Embodiment> In the 17th embodiment, the control unit 11 of the server 10, when the first content 156 is associated with the sound information 153 in addition to the third content 158 ​​associated with the sound information 153, performs control to send the second content 157, which includes the first content 156, to the terminal 20A so that the first content 156 is displayed by referencing the third content 158. As an example of the effects of this configuration, user A can easily obtain the first content 156 related to the third content 158. 【0396】 Furthermore, in the 17th embodiment, the control unit 11 of the server 10 performs control to transmit the second content 157 to the terminal 20A so that the second content 157 is displayed by referencing the fourth content 159 based on the third content 158. As an example of the effects of this configuration, user A can grasp the related third content 158 ​​and first content 156 together. 【0397】 <Other> While embodiments of this disclosure have been described based on the drawings and examples, it should be noted that those skilled in the art will find it easy to make various modifications and alterations based on this disclosure. Therefore, it should be noted that these modifications and alterations are within the scope of this disclosure. Not limited to, but as an example, the functions, etc., included in each means, each step, etc., can be rearranged in a logically consistent manner, and multiple means, steps, etc., can be combined into one or divided. Furthermore, the configurations shown in each embodiment may be combined as appropriate. [Explanation of Symbols] 【0398】 1 System 10 servers 20 devices 30 Networks

Claims

[Claim 1] A server that communicates with a first terminal that plays sound information, A server comprising a control unit that, when the sound information has been played by the first terminal up to the set playback time, controls the transmission of the content to the first terminal so that the content associated with the playback time, which includes link information, image information or text information, and information about the link destination, is displayed on the first terminal. [Claim 2] A server that communicates with a first terminal that plays sound information, A server comprising a control unit that performs control to transmit content to the first terminal so that, when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time, including information indicating the associated playback time, is displayed on the first terminal. [Claim 3] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that performs control to select the content to be transmitted based on the user attribute information of the first terminal. [Claim 4] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when it receives a request from the first terminal to stop the transmission of the content, performs control to stop the transmission of the content to the first terminal. [Claim 5] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that controls the transmission of content to the first terminal based on input from the user of the first terminal to the chat room displayed on the first terminal. [Claim 6] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when information for playing the sound information is displayed on the first terminal, controls the transmission of the display information for the associated content to the first terminal so that the display information for the content is displayed. [Claim 7] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when it receives an automatic content setting request from the second terminal, and when the sound information is provided from the second terminal, performs control to associate the set content, which includes link information to a site for inputting a message related to the sound information, with the playback time of the sound information. [Claim 8] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when it receives an automatic content setting request from the second terminal, and when the sound information is provided from the second terminal, performs control to associate the set content, which includes a list indicating the partial content of the sound information provided from the second terminal and the playback time of the content, with the playback time of the sound information. [Claim 9] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when multiple contents are associated with the sound information, controls the transmission of the multiple contents to the first terminal so that the multiple contents are displayed as a single unit. [Claim 10] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when specific sound information is searched for in the chat room, controls the transmission of the specific sound information to the first terminal so that it can be played in the chat room. [Claim 11] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The server is configured to change the display mode of the content when specific sound information associated with it is searched on the first terminal. [Claim 12] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that, when it receives a request from the first terminal to share the content it has sent to the first terminal with the third terminal, controls the transmission of the content to the second terminal. [Claim 13] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The aforementioned content is a server on which the password contained in the aforementioned sound information is set. [Claim 14] A server that communicates with a first terminal that plays sound information, The system includes a control unit that controls the transmission of content to the first terminal so that when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time is displayed on the first terminal. The control unit is a server that receives the playback start time and playback stop time of the sound information based on the playback operation at the first terminal from the first terminal, and detects that the sound information has been played up to the playback time set by the first terminal based on the playback start time and playback stop time. [Claim 15] A server according to any one of claims 1 to 14, The control unit is a server that controls the transmission of the content to the first terminal when the sound information has been played by the first terminal up to the playback time set. [Claim 16] A server according to any one of claims 1 to 14, The system includes a communication unit that transmits the content and first information relating to the set playback time to the first terminal. The content is displayed on the first terminal based on the first information when the audio information has been played by the first terminal up to the playback time set by the first terminal. [Claim 17] A server according to any one of claims 1 to 14, The aforementioned content is displayed on the server in the chat room. [Claim 18] The server according to claim 2, The information indicating the playback time includes control information for playing the sound information from the portion corresponding to the playback time, provided by the server. [Claim 19] The server according to claim 3, The attribute information includes the user's registration information for the group relating to the sound information, on the server. [Claim 20] The server according to claim 19, The control unit is a server that, if the user is not registered in the group, controls the transmission of the content, including information about the group, to the first terminal. [Claim 21] A server according to any one of claims 3, 19, or 20, The attribute information includes the user's playback history, The control unit is a server that, if the user has not played the second sound information associated with the first sound information that has been played, controls the transmission of the content, including information about the second sound information, to the first terminal. [Claim 22] The server according to claim 5, The control unit, when the user of the first terminal makes an input to the chat room displayed on the first terminal, transitions from the chat room to a screen for playing the sound information, and controls the transmission of the content to the first terminal. The aforementioned content is displayed on the server in the chat room. [Claim 23] The server according to claim 6, A server whose display of the content information is changed to improve visibility as it approaches the playback time associated with the content when the sound information is played. [Claim 24] A server according to any one of claims 1 to 14, The server provides the content display information, including the playback time information. [Claim 25] A server according to claim 7 or claim 8, The control unit is a server that performs control to associate the content set according to the sound information provided from the second terminal with the playback time. [Claim 26] A server according to claim 7 or claim 8, The control unit is a server that performs control to set the playback time associated with the content based on the sound information provided from the second terminal. [Claim 27] A server according to any one of claims 1 to 14, The control unit is a server that, when the first terminal is operated while the sound information is being played, controls the transmission of the second content to the first terminal. [Claim 28] The server according to claim 27, The second content is a server containing information obtained by converting the content of the sound information into text information. [Claim 29] A program executed by a server that communicates with a first terminal that plays sound information, A program in which, when the sound information is played by the first terminal until the set playback time, the server transmits the content associated with the playback time, which includes link information, image information or text information, and information about the linked destination, to the first terminal so that the content is displayed on the first terminal. [Claim 30] A method for processing information on a server that communicates with a first terminal that plays sound information, An information processing method that includes transmitting content to the first terminal so that, when the sound information has been played by the first terminal up to the set playback time, the content associated with the playback time, which includes link information, image information or text information, and information about the linked destination, is displayed on the first terminal. [Claim 31] A program executed by a terminal that plays sound information, A program in which, when the aforementioned sound information has been played up to the set playback time, the terminal receives the content from the server to display the content associated with the playback time, which includes link information, image information or text information, and information about the linked destination. [Claim 32] A method for processing information for a terminal that plays sound information, An information processing method that includes receiving content from a server to display content associated with the playback time, which includes link information, image information or text information, and information about the linked destination, when the sound information has been played up to the set playback time. [Claim 33] A terminal that plays sound information, A terminal comprising a control unit that controls the reception of content from a server to display content associated with the playback time, which includes link information, image information or text information, and information about the linked destination, when the sound information has been played up to the set playback time.

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