Content playback program, recording medium, and content playback method

Abstract

To prevent a problem that a terminal device reproduces contents in a reproduction method not intended by a content provider depending on the environment in which the contents are reproduced. The content playback program causes the processor (16) of the terminal device (1) to execute an equipment determination process for determining whether or not an audio device (3) connected to or included in the terminal device is compatible with content playback in a first playback method, and a playback process for causing the audio device 3 to play the content using data.If it is determined that the audio device 3 is compatible with content playback in the first playback method, the playback process causes the audio device 3 to play the content using data of the first playback method, and if it is determined that the audio device 3 is not compatible with content playback in the first playback method, the playback process causes the audio device 3 to play the content using content data of the second playback method.

Description

[Technical field]

[0001] The present invention relates to a content reproduction program, a recording medium, and a content reproduction method. [Background technology]

[0002] Conventionally, various techniques for viewing content in Dolby Atmos using a terminal device have been proposed. For example, Non-Patent Document 1 discloses a method for delivering and playing a simulated live broadcast in Dolby Atmos. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] “A thorough explanation of Dolby Atmos! (Part 2)”, [online], August 10, 2023, note, [Retrieved April 1, 2024], Internet<URL:https: / / note.com / live_extreme / n / n81c48bfd55bb> Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional technology, if the headphones connected to the terminal device do not meet the playback requirements for Dolby Atmos, the content data is down-converted to Dolby Digital Plus for playback. If the terminal device down-converts the data without permission, the audio of the played content may not be what the content provider intended.

[0005] One aspect of the present invention has been made in consideration of the above-mentioned problems, and aims to prevent problems from occurring in which, depending on the environment in which the content is played, a terminal device plays content using a playback method not intended by the content provider. [Means for solving the problem]

[0006] In order to solve the above problem, a content playback program according to one embodiment of the present invention causes a processor of a terminal device that receives data of content including audio from an apparatus that manages the content to execute an equipment determination process for determining whether an audio device connected to or provided in the terminal device is compatible with content playback using a first playback method that can realize spatial audio, and a playback process for causing the audio device to play the content using the data.If it is determined in the equipment determination process that the audio device is compatible with content playback using the first playback method, the playback process causes the audio device to play the content using data of the first playback method, and if it is determined in the equipment determination process that the audio device is not compatible with content playback using the first playback method, the playback process causes the audio device to play the content using content data of a second playback method that is different from the first playback method.

[0007] In order to solve the above problem, a content playback program according to another aspect of the present invention causes a processor of a terminal device that receives data of content including audio from a device that manages the content to execute an equipment determination process for determining whether the terminal device is capable of playing back content using a first playback method that can realize spatial audio, and a playback process for using the data to play back the content on an audio device connected to the terminal device or equipped in the terminal device.If the equipment determination process determines that the terminal device is capable of playing back content using the first playback method, the playback process causes the audio device to play back the content using data of the first playback method, and if the equipment determination process determines that the terminal device is not capable of playing back content using the first playback method, the playback process causes the audio device to play back the content using data of the content in a second playback method that is different from the first playback method.

[0008] In addition, a content playback method according to another aspect of the present invention includes an equipment determination step of determining whether an audio device connected to a terminal device that receives data of content including audio from an apparatus that manages the content or is equipped in the terminal device is compatible with playback of content using a first playback method that can realize spatial audio, and a playback step in which the audio device plays the content using the data.If it is determined in the equipment determination step that the audio device is compatible with playback of content using the first playback method, in the playback step, the audio device plays the content using data of the first playback method, and if it is determined in the equipment determination step that the audio device is not compatible with playback of content using the first playback method, in the playback step, the audio device plays the content using data of content of a second playback method different from the first playback method.

[0009] In addition, a content playback method according to another aspect of the present invention includes an equipment determination step of determining whether a terminal device that receives data of content including audio from an apparatus that manages the content is capable of playing back content using a first playback method that can realize spatial audio, and a playback step of an audio device connected to or provided in the terminal device playing back content based on the data, wherein if it is determined in the equipment determination step that the terminal device is capable of playing back content using the first playback method, in the playback step, the audio device plays back content based on data of the first playback method, and if it is determined in the equipment determination step that the terminal device is not capable of playing back content using the first playback method, in the playback step, the audio device plays back content based on data of content using a second playback method that is different from the first playback method. Effect of the Invention

[0010] According to one aspect of the present invention, it is possible to prevent a problem that a terminal device plays back content in a playback method not intended by the content provider, depending on the environment in which the content is played back. [Brief description of the drawings]

[0011] [Figure 1] 1 is a block diagram showing an example of a functional configuration of a content delivery system according to a first embodiment of the present invention. [Diagram 2] 4 is a flowchart showing an example of the flow of a content playback method according to the first embodiment of the present invention. [Diagram 3] FIG. 11 is a block diagram showing an example of a functional configuration of a content delivery system according to a second embodiment of the present invention. [Figure 4] 10 is a flowchart showing an example of the flow of a content playing method according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] <Embodiment 1> Hereinafter, one embodiment of the present invention will be described in detail.

[0013] [Configuration of content distribution system 100] As shown in FIG. 1, the content distribution system 100 includes a terminal device 1 and a server 2.

[0014] [Terminal device 1] The terminal device 1 according to this embodiment includes a communication unit 11, an output unit 12, an operation unit 13, an identification information acquisition unit 14, a storage unit 15, and a calculation unit 16.

[0015] (Communications Department 11) The communication unit 11 communicates with the server 2. The communication unit 11 in this embodiment communicates with the server 2 wirelessly. The communication unit 11 receives content data from a device that manages the content. The content includes audio. Content based on the content data received by the communication unit 11 in this embodiment further includes video. The communication unit 11 in this embodiment is configured with a communication module. Note that the communication unit 11 may be configured to communicate with the server 2 via a wired connection.

[0016] (Output section 12) The output unit 12 outputs the content. The output unit 12 is composed of a wireless communication module that transmits content data to the audio device 3 that is wirelessly connected to the terminal device 1, a terminal to which a connector of the audio device 3 that is wired to the terminal device 1 is connected, and the like. The "audio device 3" is a device that is connected to the terminal device 1. The "audio device 3" includes earphones, headphones, audio equipment, and the like. If the content further includes video, the output unit 12 may be composed of a display device that the terminal device 1 has in addition to the wireless communication module and the terminal. The audio device 3 may also be a device that the terminal device 1 has. In this case, the audio device 3 is composed of a built-in speaker, and the like.

[0017] (Operation unit 13) The operation unit 13 is operated by a user. The operation includes a transmission request operation. The transmission request operation is an operation for requesting the server 2 to transmit content desired by the user. The operation unit 13 includes, for example, physical buttons, a touch panel laminated on a display device, and the like.

[0018] (Identification information acquisition unit 14) The identification information acquisition unit 14 acquires identification information for using the content. The "identification information" is a serial code (serial number) for identifying the content. The identification information includes at least one of alphabets, numbers, and symbols. A single piece of identification information may be associated with one piece of content, or may be associated with multiple pieces of content. "Use" includes downloading and streaming. The identification information acquisition unit 14 may be, for example, an operation unit (keyboard, touch panel, etc.) for reading from a medium or for a user to input the identification information, or an input unit (communication module, input terminal, etc.) for receiving data of the identification information. The identification information acquisition unit 14 may also be the operation unit 13 according to the above-mentioned first embodiment.

[0019] (Storage unit 15) The storage unit 15 stores an OS (Operating System). The OS stored in the storage unit 15 according to this embodiment provides the terminal device 1 with a function of reproducing content including audio in a first reproduction method. The first reproduction method will be described in detail later. The OS includes, for example, iOS (registered trademark). The OS may be an OS other than iOS (registered trademark). The storage unit 15 also stores a content reproduction program (application program). The content reproduction program causes the processor of the terminal device 1 to execute various processes described later. The storage unit 15 according to this embodiment is composed of a semiconductor memory, a hard disk drive, etc.

[0020] (Computation unit 16) The calculation unit 16 includes a device determination unit 161 and a playback processing unit 162. The calculation unit 16 according to this embodiment further includes a transmission control unit 163, a channel information acquisition unit 164, and an information determination unit 165. The calculation unit 16 according to this embodiment is configured with a processor. When the processor executes a content playback program stored in the storage unit 15, the processor functions as the device determination unit 161, the device determination unit 161, the playback processing unit 162, the transmission control unit 163, the channel information acquisition unit 164, and the information determination unit 165.

[0021] Transmission control unit 163 The transmission control unit 163 controls the communication unit 11 when the identification information acquisition unit 14 acquires the identification information. As a result, the communication unit 11 transmits the identification information to the server 2. The transmission control unit 163 according to the present embodiment also controls the communication unit 11 when a transmission request operation is performed on the operation unit 13. As a result, the communication unit 11 transmits a transmission request to the server 2.

[0022] ·Channel information acquisition unit 164 The channel information acquisition unit 164 executes a channel information acquisition process. In the channel information acquisition process, the channel information acquisition unit 164 acquires channel information from the server 2 (a device that manages content). The channel information is information indicating a data transmission channel (e.g., a stream URL). The channel information acquisition unit 164 according to this embodiment acquires channel information indicating a plurality of transmission channels set for each reproduction method.

[0023] ·Information Judgment Department 165 The information determination unit 165 executes information determination processing. In the information determination processing, the information determination unit 165 determines whether data in the first reproduction method is being transmitted to a transmission channel indicated by the acquired channel information (data in the second reproduction method is being transmitted). The "first reproduction method" is a reproduction method capable of realizing spatial audio. The first reproduction method is, for example, Dolby Atmos (registered trademark) or Dolby Digital Plus (registered trademark). The "second reproduction method" is stereo. As described above, the channel information acquisition unit 164 according to this embodiment acquires channel information indicating a plurality of transmission channels. Therefore, the information determination unit 165 according to this embodiment determines whether data in the first reproduction method is being transmitted to a target (default) transmission channel among a plurality of transmission channels.

[0024] ·Device judgment unit 161 The device determination unit 161 executes a device determination process. The device determination unit 161 according to this embodiment executes the device determination process when the information determination unit 165 determines that data in a first playback format is being transmitted to a target transmission channel. In the device determination process, the device determination unit 161 determines whether the audio device 3 supports playback of content in the first playback format. The device determination unit 161 according to this embodiment determines whether playback of content in the first playback format is supported based on various information stored in the audio device 3.

[0025] ·Playback Processing Unit 162 The playback processing unit 162 executes a playback process. In the playback process, the playback processing unit 162 uses the data of the content to cause the audio device 3 to play the content. If the device determination unit 161 determines (in the device determination process) that the audio device 3 supports playback of the content in the first playback format, the playback processing unit 162 uses the data of the first playback format to cause the audio device 3 to play the content. Specifically, the playback processing unit 162 first acquires the data of the content in the first playback format from the target transmission channel. Then, the playback processing unit 162 generates an audio signal using the acquired data. Then, the playback processing unit 162 sends the generated audio signal to the audio device 3.

[0026] On the other hand, if the device determination unit 161 determines (in the device determination process) that the audio device 3 does not support playback of the content in the first playback method, the playback processing unit 162 causes the audio device 3 to play back the content using the data of the content in the second playback method. Specifically, the playback processing unit 162 first switches the target transmission channel from the default transmission channel to another transmission channel (for example, channel 2 when the default transmission channel is channel 1) through which the data in the second playback method is being transmitted. Then, the playback processing unit 162 acquires the data of the content in the second playback method from the transmission channel after the switch. Then, the playback processing unit 162 generates an audio signal using the acquired data. Then, the playback processing unit 162 sends the generated audio signal to the audio device 3.

[0027] Furthermore, even if the information determination unit 165 determines that data in the first playback method is not being transmitted to the target transmission channel (data in the second playback method is being transmitted), the playback processing unit 162 causes the audio device 3 to play back the content using the content data in the second playback method. Specifically, the playback processing unit 162 first acquires content data in the second playback method from a specific transmission channel. Then, the playback processing unit 162 generates an audio signal using the acquired data. Then, the playback processing unit 162 sends the generated audio signal to the audio device 3.

[0028] In this way, the playback processing unit 162 does not down-convert data in the first playback format even if the audio device 3 does not support playback of content in the first playback format.

[0029] [Server 2] The server 2 is a device that manages content. The server 2 communicates with the terminal device 1. The server 2 according to this embodiment communicates with the terminal device 1 wirelessly. Note that the server 2 may be configured to communicate with the terminal device 1 via a wired connection.

[0030] Furthermore, the server 2 acquires identification information from the terminal device 1. As described above, when a transmission request operation is performed by a user, the terminal device 1 according to this embodiment transmits a transmission request to the server 2. Therefore, the server 2 according to this embodiment further acquires a content transmission request from the terminal device 1.

[0031] Furthermore, the server 2 judges whether or not to permit the use of the content in the terminal device 1 (whether or not to authenticate the identification information) based on the identification information. For example, the server 2 judges to permit the use of the content when the acquired identification information is included in a list of identification information (not shown).

[0032] Furthermore, when the server 2 permits the use of the content in the terminal device 1, the server 2 transmits channel information and content data to the terminal device 1. When the server 2 permits the use of the content and acquires a content transmission request, the server transmission control unit according to this embodiment transmits channel information and content data.

[0033] [Effects of the content distribution system 100] In the content distribution system 100 described above, when it is determined in the device determination process that the audio device 3 is not compatible with content playback in the first playback method, the playback process causes the audio device 3 to play the content using content data in the second playback method. The content data in the second playback method, like the content data in the first playback method, is prepared by the content provider. Therefore, the content distribution system 100 can prevent the problem of a terminal device playing back content in a playback method not intended by the content provider, depending on the environment in which the content is played back.

[0034] [Content playback procedure] 2, the content playing method S100 includes a device determination step A1 and a playing step A2. The content playing method S100 according to the present embodiment further includes an information transmitting step A3, a channel information acquiring step A4, an information determining step A5, an information acquiring step B1, a permission determining step B2, and a data transmitting step B3.

[0035] [Information transmission step A3] In the first information transmission step A3, the terminal device 1 transmits identification information.

[0036] [Information Acquisition Step B1] After the terminal device 1 transmits the identification information, the process proceeds to information acquisition step B1. In information acquisition step B1, the server 2, which communicates with the terminal device 1, acquires the identification information from the terminal device 1.

[0037] [Permission decision step B2] After the server 2 acquires the identification information, the process proceeds to permission decision step B2. In permission decision step B2, the server 2 determines, based on the identification information, whether or not to permit use of the content in the terminal device 1. If it is determined in permission decision step B2 that use of the content is not permitted (step B2: NO), the content playback method S100 ends.

[0038] [Data transmission step B3] The data transmission step B3 is performed when it is determined that the use of the content in the terminal device 1 is permitted (step B2: YES). In the data transmission step B3, the server 2 transmits channel information and content data to the terminal device 1.

[0039] [Channel information acquisition step A4] After the server 2 transmits the channel information, the process proceeds to a channel information acquisition step A4, in which the terminal device 1 acquires the channel information.

[0040] [Information Judgment Step A5] After the terminal device 1 acquires the content data, the process proceeds to information determination step A5. In information determination step A5, it is determined whether data in the first playback format is being transmitted to the transmission channel indicated by the acquired channel information (whether data in the second playback format is being transmitted). This determination may be made by the terminal device 1 or another device.

[0041] [Equipment determination step A1] The device determination step A1 according to the present embodiment is performed when it is determined in the information determination step A5 that data in the first playback format is being transmitted to the target transmission channel. In the device determination step A1, it is determined whether or not the audio device 3 connected to the terminal device 1 or included in the terminal device 1 supports playback of content in the first playback format. This determination may be performed by the terminal device 1 or by another device.

[0042] [Playback step A2] In the reproduction step A2, the audio device 3 reproduces the content using the content data (A21).

[0043] If it is determined in the device determination step A1 that the audio device 3 supports playback of content in the first playback format, in the playback step A2, the audio device 3 plays back the content using data in the first playback format.

[0044] On the other hand, if it is determined in the device determination step A1 that the audio device 3 does not support playback of the content in the first playback method, in the playback step A2, the audio device 3 plays the content using the data of the content in the second playback method. At that time, the device that causes the audio device 3 to output the sound (for example, the above-mentioned terminal device 1) switches the target transmission channel from the default transmission channel to another transmission channel through which the data in the second playback method is being transmitted (A22). Then, the device obtains the data of the content in the second playback method from the switched transmission channel.

[0045] Also, in the playback step A2, even if it is determined in the information determination step A5 that data in the first playback method is not being transmitted to the target transmission channel (data in the second playback method is being transmitted), the audio device 3 plays the content using content data in the second playback method.

[0046] In this way, in the reproduction step A2, even if the audio device 3 does not support reproduction of content in the first reproduction format, the data in the first reproduction format is not down-converted.

[0047] [Effects of the content playback method S100] In the content playback method S100 described above, if it is determined in the device determination step A1 that the audio device 3 does not support playback of content in the first playback format, in the playback step A2, the audio device 3 plays back the content using content data in the second playback format. The content data in the second playback format, like the content data in the first playback format, is prepared by the content provider. Therefore, according to the content playback method S100, it is possible to prevent a problem that a terminal device plays back content in a playback format not intended by the content provider, depending on the environment in which the content is played back.

[0048] <Embodiment 2> Hereinafter, another embodiment of the present invention will be described in detail. For the sake of convenience, the same reference numerals will be given to members having the same functions as those described in the above embodiment, and the description thereof will not be repeated.

[0049] [Configuration of content distribution system 100A] As shown in FIG. 3, the content distribution system 100 includes a terminal device 1A and a server 2A.

[0050] [Terminal device 1A] The terminal device 1A according to this embodiment includes a communication unit 11, an output unit 12, an operation unit 13, and an identification information acquisition unit 14 similar to those of the terminal device 1 according to the first embodiment, as well as a storage unit 15A and a calculation unit 16A.

[0051] (Storage section 15A) The storage unit 15A stores an OS (Operating System). The OS stored in the storage unit 15A according to the present embodiment may provide the terminal device 1A with a function of playing back content including audio in a first playback format, or may not provide the function (provide a function of playing back in a second playback format). The OS includes, for example, Android (registered trademark). The OS may be an OS other than Android (registered trademark). The storage unit 15A also stores a content playback program (application program). The content playback program causes the processor of the terminal device 1A to execute various processes described later. The storage unit 15 according to the present embodiment is composed of a semiconductor memory, a hard disk drive, and the like.

[0052] (Arithmetic section 16A) The calculation unit 16A includes a reproduction processing unit 162, a transmission control unit 163, a channel information acquisition unit 164, and an information determination unit 165 similar to those of the calculation unit 16 according to the first embodiment, as well as a device determination unit 161A. The calculation unit 16A according to the present embodiment is configured with a processor. The processor executes a content reproduction program stored in the storage unit 15A, whereby the processor functions as the device determination unit 161A, the reproduction processing unit 162, the transmission control unit 163, the channel information acquisition unit 164, and the information determination unit 165.

[0053] ·Device judgment section 161A The device determination unit 161 executes a device determination process. In the device determination process, the device determination unit 161 determines whether the terminal device 1 supports playback of content in a first playback format. Specifically, the device determination unit 161 determines whether a function for supporting the first playback format is added to the OS. The "function for supporting the first playback format" refers to a function for decoding a codec of the first playback format. The device determination unit 161 according to this embodiment determines whether the function is added based on various information stored in the terminal device 1.

[0054] ·Playback Processing Unit 162 When the device determination unit 161A determines (in the device determination process) that the terminal device 1A supports content playback in the first playback method, the playback processing unit 162 uses data of the first playback method to make the audio device 3 play back the content. On the other hand, when the device determination unit 161A determines (in the device determination process) that the terminal device 1A does not support content playback in the first playback method, the playback processing unit 162 uses data of content in the second playback method to make the audio device 3 play back the content. Also, when the information determination unit 165 determines that data in the first playback method has not been transmitted to the target transmission channel (data in the second playback method has been transmitted), the playback processing unit 162 uses data of content in the second playback method to make the audio device 3 play back the content.

[0055] [Effects of the content distribution system 100A] In the content distribution system 100A described above, when it is determined in the device determination process that the terminal device 1A is not compatible with content playback in the first playback method, the playback process causes the audio device 3 to play the content using content data in the second playback method. The content data in the second playback method, like the content data in the first playback method, is prepared by the content provider. Therefore, the content distribution system 100A can prevent the problem of the terminal device playing back content in a playback method not intended by the content provider, depending on the environment in which the content is played back.

[0056] [Content playback procedure] As shown in FIG. 4, the content playback method S100A includes a playback step A2, an information transmitting step A3, a channel information acquisition step A4, an information determination step A5, an information acquisition step B1, a permission determination step B2, and a data transmission step B3, which are similar to the content playback method S100 of the above embodiment 1, as well as an equipment determination step A1A.

[0057] [Equipment judgment step A1A] In the device determination step A1A according to the present embodiment, it is determined whether the terminal device 1 supports playback of content in the first playback format. This determination may be made by the terminal device 1A or by another device.

[0058] [Playback step A2] If it is determined in the device determination step A1 that the terminal device 1A supports content playback in the first playback method, then in the playback step A2, the audio device 3 plays back the content using data of the first playback method. On the other hand, if it is determined in the device determination step A1 that the terminal device 1A does not support content playback in the first playback method, then in the playback step A2, the audio device 3 plays back the content using data of the content in the second playback method. Also, in the playback step A2, if it is determined in the information determination step A5 that data in the first playback method has not been transmitted to the target transmission channel (data in the second playback method has been transmitted), then the audio device 3 also plays back the content using data of the content in the second playback method.

[0059] [Effects of the content playback method S100A] In the content playback method S100A described above, if it is determined in the device determination step A1A that the terminal device 1A does not support playback of content in the first playback format, in the playback step A2, the audio device 3 plays back the content using content data in the second playback format. The content data in the second playback format, like the content data in the first playback format, is prepared by the content provider. Therefore, according to the content playback method S100, it is possible to prevent a problem that the terminal device plays back content in a playback format not intended by the content provider, depending on the environment in which the content is played back.

[0060] <Modification> The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

[0061] For example, the server 2 may be divided into a server that authenticates the identification information and a server that manages the content. The server that authenticates the identification information may be configured to transmit a control signal to the server that manages the content when the use of the content in the terminal device 1 is permitted. The server that manages the content may be configured to transmit the data of the content to the terminal device 1 when the server that manages the content receives the control signal.

[0062] Furthermore, the server 2 may be configured to transmit the content without receiving a transmission request from the terminal device 1. In other words, the content distribution system 100 may be configured such that, once the identification information is authenticated, the content can be viewed without waiting for a transmission request operation by the user.

[0063] The content playback program may be stored in one or more computer-readable storage media, not temporarily. The storage media may or may not be included in the device. In the latter case, the content playback program may be provided to the device via any wired or wireless transmission medium.

[0064] In addition, some or all of the functions of each of the control blocks can be realized by a logic circuit. For example, an integrated circuit in which a logic circuit that functions as each of the control blocks is formed is also included in the scope of the present invention. In addition, the functions of each of the control blocks can be realized by, for example, a quantum computer.

[0065] 〔summary〕 The content playback program of aspect 1 of the present invention is configured to cause a processor of a terminal device that receives data of content including audio from a device that manages the content to execute an equipment determination process for determining whether an audio device connected to or included in the terminal device is compatible with content playback using a first playback method that can realize spatial audio, and a playback process for causing the audio device to play the content using the data.If it is determined in the equipment determination process that the audio device is compatible with content playback using the first playback method, the playback process causes the audio device to play the content using data of the first playback method, and if it is determined in the equipment determination process that the audio device is not compatible with content playback using the first playback method, the playback process causes the audio device to play the content using content data of a second playback method different from the first playback method.

[0066] A content playback program according to a second aspect of the present invention causes a processor of a terminal device that receives data of content including audio from a device that manages the content to execute an equipment determination process for determining whether the terminal device is capable of playing back content using a first playback method that can realize spatial audio, and a playback process for using the data to play back the content on an audio device connected to the terminal device or equipped in the terminal device; if it is determined in the equipment determination process that the terminal device is capable of playing back content using the first playback method, the playback process causes the audio device to play back the content using data of the first playback method; and if it is determined in the equipment determination process that the terminal device is not capable of playing back content using the first playback method, the playback process causes the audio device to play back the content using content data of a second playback method different from the first playback method.

[0067] A content playback program according to aspect 3 of the present invention may be configured in accordance with aspect 1 or 2 above to cause the processor to further execute a channel information acquisition process for acquiring channel information indicating a transmission channel of the data from a device that manages the content, and an information determination process for determining whether data in the first playback format is being transmitted to the transmission channel indicated by the channel information, and to execute the device determination process when the information determination unit determines that data in the first playback format is being transmitted to the transmission channel.

[0068] A content playback program according to a fourth aspect of the present invention may be configured in such a way that, in the first or second aspect described above, the content further includes video.

[0069] A content playback program according to aspect 5 of the present invention may be configured in the above-mentioned aspect 1 or 2 such that the first playback method is Dolby Atmos (registered trademark) or Dolby Digital Plus (registered trademark), and the second playback method is stereo.

[0070] A recording medium according to a sixth aspect of the present invention may be configured to be computer-readable and to have the content playback program recorded thereon in any one of the first to fifth aspects.

[0071] A content playback method according to aspect 7 of the present invention includes an equipment determination step of determining whether an audio device connected to a terminal device that receives data of content including audio from an apparatus that manages the content, or provided in the terminal device, is compatible with playback of content using a first playback method that can realize spatial audio, and a playback step in which the audio device plays content based on the data, wherein if it is determined in the equipment determination step that the audio device is compatible with playback of content using the first playback method, in the playback step the audio device plays content based on data of the first playback method, and if it is determined in the equipment determination step that the audio device is not compatible with playback of content using the first playback method, in the playback step the audio device plays content based on data of content using a second playback method that is different from the first playback method.

[0072] A content playback method according to aspect 8 of the present invention includes an equipment determination step of determining whether a terminal device that receives data of content including audio from an apparatus that manages the content is capable of playing back content in a first playback method that can realize spatial audio, and a playback step of an audio device connected to or provided in the terminal device playing back content based on the data, wherein if it is determined in the equipment determination step that the terminal device is capable of playing back content in the first playback method, in the playback step, the audio device plays back content based on data of the first playback method, and if it is determined in the equipment determination step that the terminal device is not capable of playing back content in the first playback method, in the playback step, the audio device plays back content based on data of content in a second playback method different from the first playback method. [Explanation of symbols]

[0073] 100 Content Delivery System 1, 1A Terminal Equipment 11 Communications Department 12 Output section 13 Control section 14 Identification information acquisition unit 15 Storage section 16, 16A calculation section 161, 161A Device judgment section 162 Playback Processing Unit 163 Transmission control section 164 Channel Information Acquisition Unit 165 Information Judgment Department 2 Server 3 Audio Device 3 How to play S100 and S100A content A1, A1A Equipment Judgment Step A2 Playback Steps A3 Information transmission step A4 Channel information acquisition step A5 Information Judgment Step B1 Information Acquisition Step B2 Permission decision step B3 Data transmission step

Claims

1. A processor of a terminal device that receives data of a content including audio from a device that manages the content, An equipment determination process for determining whether or not an audio device connected to the terminal device or included in the terminal device is compatible with playback of content in a first playback method capable of realizing spatial audio; a playback process for playing back content on the audio device using the data; Run the command, When it is determined in the device determination process that the audio device is compatible with playback of the content in the first playback format, the playback process includes causing the audio device to play the content using data in the first playback format; When it is determined in the device determination process that the audio device does not support playback of the content in the first playback format, the playback process causes the audio device to play the content using data of the content in a second playback format different from the first playback format. Content playback program.

2. A processor of a terminal device that receives data of a content including audio from a device that manages the content, An equipment determination process for determining whether the terminal device is capable of playing back content in a first playback format capable of realizing spatial audio; a playback process for playing back content on an audio device connected to the terminal device or included in the terminal device using the data; Run the command, When it is determined in the device determination process that the terminal device is compatible with playback of the content in the first playback format, the playback process includes causing the audio device to play the content using data in the first playback format; When it is determined in the device determination process that the terminal device does not support playback of the content in the first playback format, the playback process causes the audio device to play the content using data of the content in a second playback format different from the first playback format. Content playback program.

3. The processor, A channel information acquisition process for acquiring channel information indicating a transmission channel of the data from a device that manages the content; an information determination process for determining whether data in the first reproduction format is being transmitted to a transmission channel indicated by the channel information; Then, executing the device determination process when the information determination unit determines that data in the first reproduction format is being transmitted to the transmission channel; 3. The content reproducing program according to claim 1.

4. The content further includes a video.

3. The content reproducing program according to claim 1.

5. the first playback method is Dolby Atmos (registered trademark) or Dolby Digital Plus (registered trademark); the second playback method is stereo; 3. The content reproducing program according to claim 1.

6. 3. A computer-readable recording medium on which the content reproducing program according to claim 1 or 2 is recorded.

7. an equipment determination step of determining whether an audio device connected to a terminal device that receives data of content including audio from an apparatus that manages the content or an audio device included in the terminal device is compatible with playback of content by a first playback method that can realize spatial audio; a playback step of the audio device playing content based on the data; Including, When it is determined in the device determination step that the audio device is compatible with the playback of the content in the first playback format, in the playback step, the audio device plays back the content based on data in the first playback format; If it is determined in the device determination step that the audio device does not support playback of the content in the first playback method, in the playback step, the audio device plays back content based on data of content in a second playback method different from the first playback method. How to play content.

8. a device determination step of determining whether a terminal device that receives data of a content including audio from a device that manages the content supports playback of the content according to a first playback method that can realize spatial audio; a playback step of playing back content based on the data by an audio device connected to the terminal device or included in the terminal device; Including, When it is determined in the device determination step that the terminal device is compatible with the playback of the content in the first playback format, in the playback step, the audio device plays back the content based on data in the first playback format; When it is determined in the device determination step that the terminal device does not support playback of the content in the first playback method, in the playback step, the audio device plays back the content based on data of the content in a second playback method different from the first playback method. How to play content.