Display device, audio device, and audio signal playback method

Abstract

The present disclosure relates to a display device, a sound device and an audio signal playing method, which are applied to the technical field of terminals, and the display device comprises a controller configured to: in response to an operation of playing a target audio signal, if the display device supports a chorus function, sending a target request message; receiving a target response message corresponding to the target request message; if the sound device supports the chorus function, based on first parameter information and second parameter information of the display device, determining a target chorus scheme, and there is no same type of sound channel in the third sound channel and the fourth sound channel; based on the target chorus scheme and the target audio signal, obtaining a first audio signal corresponding to the fourth sound channel in the target audio signal, and sending target indication information, the target indication information being used to instruct the sound device to play a second audio signal corresponding to the fourth sound channel in the target audio signal; and playing the first audio signal.

Description

Technical Field

[0001] This disclosure relates to terminal technology. More specifically, it relates to a display device, an audio device, and a method for playing audio signals. Background Technology

[0002] Currently, the solutions for joint sound production by televisions and audio systems all involve the television playing the corresponding channel signal from the audio signal according to its own included channels, and the audio system also playing the corresponding channel signal from the audio signal according to its own included channels. In this case, when the television and audio system include the same channels, there will be two channels of the same type playing the same channel signal at the same time. As a result, channel conflicts may occur due to the different positions of the two channels of the same type or delays, resulting in poor sound quality. Summary of the Invention

[0003] To solve the above-mentioned technical problems, or at least partially solve them, embodiments of this disclosure provide a display device, an audio device, and an audio signal playback method, which can avoid channel conflicts when the display device and the audio device jointly emit sound, determine a suitable joint sound emission scheme, and improve the effect of joint sound emission.

[0004] In a first aspect, embodiments of this disclosure provide a display device, including: a controller configured to: in response to an operation of playing a target audio signal, if the display device supports a chorus function, send a target request message, the target request message being used to request the audio capabilities and channel parameters of an audio device; receive a target response message corresponding to the target request message, the target response message carrying audio capability information and first parameter information of the audio device, the first parameter information being used to indicate a first channel supported by the audio device; if the audio capability information indicates that the audio device supports a chorus function, determine a target chorus scheme based on the first parameter information and second parameter information of the display device, the target... The sound combination scheme includes first channel allocation information and second channel allocation information. The second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Based on the target sound combination scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal. The first audio signal is then played.

[0005] In some embodiments of this disclosure, the controller performs a process based on first parameter information and second parameter information of the display device to determine a target harmony scheme. Specifically, it is configured to determine a target harmony scheme that matches the first parameter information from a plurality of preset harmony schemes that match the second parameter information.

[0006] In some embodiments of this disclosure, before the controller executes the acquisition of the first audio signal corresponding to the fourth channel in the target audio signal based on the target harmony scheme and the target audio signal, and sends the target indication information, it is further configured to: display first prompt information based on the target harmony scheme, the first prompt information being used to prompt the user about the relative positional relationship between the display device and the audio device, and / or, the first prompt information being used to prompt the user about the position of the third channel in the display device and the position of the fourth channel in the audio device.

[0007] In some embodiments of this disclosure, the controller performs a determination of a target harmonies based on first parameter information and second parameter information of the display device. Specifically, it is configured to: display a second prompt message to indicate to the user whether the relative positions of the display device, the audio device, and the remote control meet target conditions. These target conditions indicate that: a first perpendicular plane connecting the center of the left channel speaker and the center of the right channel speaker of the display device is parallel to a second perpendicular plane connecting the center of the left channel speaker and the center of the right channel speaker of the audio device; the central axis of the remote control is perpendicular to the first perpendicular plane; the minimum distance from the central axis to a first plane passing through the display device and perpendicular to the first perpendicular plane is less than or equal to a first distance; the minimum distance from the central axis to a second plane passing through the audio device and perpendicular to the second perpendicular plane is less than or equal to a second distance; and the distance from the center of the remote control to the center of the display device is greater than or equal to a third distance and less than or equal to a fourth distance, where the third distance is less than the fourth distance; and in response to a received confirmation operation for the second prompt message, the controller controls the left and right channel speakers of the display device to sequentially play audio signals. The remote control sequentially receives a first sound signal from the left channel speaker of the display device and a second sound signal from the right channel speaker of the display device via the microphone; sends a control message to control the left and right channel speakers of the audio device to play audio signals sequentially; and sequentially receives a third sound signal from the left channel speaker of the audio device and a fourth sound signal from the right channel speaker of the audio device via the microphone of the remote control; based on the first, second, third, and fourth sound signals, it determines the display device... The left and right channel speakers of the equipment correspond to the first and second sound pressure levels, respectively, and the left and right channel speakers of the audio equipment correspond to the third and fourth sound pressure levels, respectively. When the first difference is greater than the second difference, it is determined that the third channel includes the left and right channels, and the fourth channel includes the center channel. The first difference is the difference between the first and second sound pressure levels, and the second difference is the difference between the third and fourth sound pressure levels. When the first difference is less than the second difference, it is determined that the third channel includes the center channel, and the fourth channel includes the left and right channels.

[0008] In some embodiments of this disclosure, the controller is further configured to: determine a target difference when the first difference is equal to the second difference, the target difference being the difference between the first sound pressure level and the third sound pressure level, or the difference between the second sound pressure level and the fourth sound pressure level; determine that the third channel includes the center channel and the fourth channel includes the left and right channels when the target difference is greater than or equal to 0; and determine that the third channel includes the left and right channels and the fourth channel includes the center channel when the target difference is less than 0.

[0009] In some embodiments of this disclosure, the first parameter information includes first bass parameter information, which is used to indicate the first bass parameter value corresponding to the subwoofer channel of the audio device. The second parameter information includes second bass parameter information, which is used to indicate the second bass parameter value corresponding to the subwoofer channel of the display device. The controller performs a determination of a target harmonic scheme based on the first parameter information and the second parameter information of the display device. It is also specifically configured to: determine that the fourth channel includes the subwoofer channel when the first bass parameter value is greater than the second bass parameter value; and determine that the third channel includes the subwoofer channel when the first bass parameter value is less than the second bass parameter value.

[0010] In some embodiments of this disclosure, the controller performs the following actions based on the target harmony scheme and the target audio signal: acquiring a first audio signal corresponding to the fourth channel in the target audio signal and sending target indication information. Specifically, the controller is configured to: separate the first audio signal and the second audio signal from the target audio signal based on the target harmony scheme; send target indication information carrying the second audio signal; or, separate the first audio signal from the target audio signal based on the target harmony scheme; send target indication information carrying second channel allocation information and the target audio signal, so that the audio device separates the second audio signal from the target audio signal based on the second channel allocation information and plays the second audio signal.

[0011] In some embodiments of this disclosure, the controller performs the following: determining a target harmony scheme based on first parameter information and second parameter information of the display device; specifically configured to: determine multiple candidate harmony schemes based on the first parameter information and the second parameter information of the display device; display the multiple candidate harmony schemes; and determine the target harmony scheme in response to a selection operation of the target harmony scheme among the multiple candidate synthesis schemes.

[0012] Secondly, embodiments of this disclosure provide an audio device, including: a controller configured to: receive a target request message, the target request message being used to request the audio capabilities and channel parameters of the audio device, the target request message being generated by a display device in response to an operation of playing a target audio signal, provided that the display device supports a harmonic function; and send a target response message corresponding to the target request message, the target response message carrying audio capability information and first parameter information of the audio device, so that the display device, when the audio capability information indicates that the audio device supports a harmonic function, determines a target harmonic scheme based on the first parameter information and second parameter information of the display device, the target harmonic scheme including first channel allocation information and second channel allocation information, the first parameter information... The system is used to indicate the first channel supported by the audio device, the second parameter information is used to indicate the second channel supported by the display device, the first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal, the second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal, and there are no channels of the same type in the third and fourth channels; it receives target indication information, which indicates that when the display device plays the first audio signal corresponding to the fourth channel in the target audio signal, the audio device will synchronously play the second audio signal corresponding to the fourth channel in the target audio signal, and the target indication information and the first audio signal are based on the target harmonies scheme and the target audio signal; and plays the second audio signal.

[0013] Thirdly, embodiments of this disclosure provide an audio signal playback method applied to a display device, comprising: responding to an operation of playing a target audio signal, and if the display device supports a chorus function, sending a target request message, the target request message being used to request the sound capabilities of an audio device and the channel parameters of the audio device; receiving a target response message corresponding to the target request message, the target response message carrying sound capability information of the audio device and first parameter information, the first parameter information being used to indicate a first channel supported by the audio device; and, if the sound capability information indicates that the audio device supports a chorus function, determining a target chorus scheme based on the first parameter information and second parameter information of the display device. The target sound combination scheme includes first channel allocation information and second channel allocation information. The second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used for playing the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used for playing the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Based on the target sound combination scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal. The first audio signal is then played.

[0014] Fourthly, embodiments of this disclosure provide an audio signal playback method applied to an audio device, comprising: receiving a target request message, the target request message being used to request the audio capabilities and channel parameters of the audio device, the target request message being generated by a display device in response to an operation to play a target audio signal, provided that the display device supports a harmonic function; sending a target response message corresponding to the target request message, the target response message carrying audio capability information and first parameter information of the audio device, so that the display device, when the audio capability information indicates that the audio device supports a harmonic function, determines a target harmonic scheme based on the first parameter information and second parameter information of the display device, the target harmonic scheme including first channel allocation information and second channel allocation information, the first parameter... The information is used to indicate the first channel supported by the audio device, the second parameter information is used to indicate the second channel supported by the display device, the first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal, the second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal, and there are no channels of the same type in the third channel and the fourth channel; receiving target indication information, which indicates that when the display device plays the first audio signal corresponding to the fourth channel in the target audio signal, the audio device will synchronously play the second audio signal corresponding to the fourth channel in the target audio signal, and the target indication information and the first audio signal are based on the target harmonies scheme and the target audio signal; playing the second audio signal.

[0015] Fifthly, embodiments of this disclosure provide a computer-readable storage medium, including: storing a computer program on the computer-readable storage medium, wherein when the computer program is executed by a processor, it implements the audio signal playback method as shown in the third or fourth aspect.

[0016] In a sixth aspect, embodiments of this disclosure provide a computer program product, including: when the computer program product is run on a computer, causing the computer to implement the audio signal playback method as shown in the third or fourth aspect.

[0017] Compared with the prior art, the technical solution provided in this disclosure has the following advantages: In this disclosure, in response to the operation of playing a target audio signal, when the display device supports the harmonic function, a target request message is sent. This target request message requests the audio capabilities and channel parameters of the audio device. A target response message corresponding to the target request message is received. This target response message carries audio capability information and first parameter information of the audio device. The first parameter information indicates the first channel supported by the audio device. When the audio capability information indicates that the audio device supports the harmonic function, a target harmonic scheme is determined based on the first parameter information and the second parameter information of the display device. The target sound combination scheme includes first channel allocation information and second channel allocation information. The second parameter information indicates the second channel supported by the display device. The first channel allocation information indicates the third channel in the second channel used to play the target audio signal, and the second channel allocation information indicates the fourth channel in the first channel used to play the target audio signal. The third and fourth channels do not contain channels of the same type. Based on the target sound combination scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. This target indication information instructs the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal. The first audio signal is then played. Thus, when both the display device and the audio device support sound combination functionality, the display device determines the target sound combination scheme based on the obtained channel parameters of the audio device and its own channel parameters. This allows the display device and the audio device to jointly produce sound through different types of channels, thereby avoiding channel overlap and poor sound quality caused by the display device and the audio device using the same type of channel to play audio signals. Attached Figure Description

[0018] To more clearly illustrate the implementation methods in the embodiments of this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings.

[0019] Figure 1 An operational scenario between a display device and a control device according to some embodiments is illustrated;

[0020] Figure 2 A hardware configuration block diagram of a control device 100 according to some embodiments is shown;

[0021] Figure 3 A hardware configuration block diagram of a display device 200 according to some embodiments is shown;

[0022] Figure 4 One of the schematic diagrams of a sound combination scheme in which a display device and an audio device jointly produce sound according to some embodiments is shown;

[0023] Figure 5 A second schematic diagram of a sound combination scheme in which a display device and an audio device jointly produce sound according to some embodiments is shown;

[0024] Figure 6 The third schematic diagram illustrates a sound combination scheme in which a display device and an audio device jointly produce sound according to some embodiments;

[0025] Figure 7 The fourth schematic diagram illustrates a sound combination scheme in which a display device and an audio device jointly produce sound according to some embodiments;

[0026] Figure 8 A schematic diagram illustrating that the relative positions of a display device, an audio device, and a remote control according to some embodiments satisfy target conditions;

[0027] Figure 9 A software configuration diagram of a display device 200 according to some embodiments is shown;

[0028] Figure 10 One of the schematic flowcharts of an audio signal playback method according to some embodiments is shown;

[0029] Figure 11 A second schematic flowchart of an audio signal playback method according to some embodiments is shown;

[0030] Figure 12 A third schematic flowchart of an audio signal playback method according to some embodiments is shown;

[0031] Figure 13 The fourth schematic flowchart of an audio signal playback method according to some embodiments is shown. Detailed Implementation

[0032] To make the objectives and implementation methods of this disclosure clearer, the exemplary embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this disclosure. Obviously, the exemplary embodiments described are only some embodiments of this disclosure, and not all embodiments.

[0033] It should be noted that the brief descriptions of terms in this disclosure are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this disclosure. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0034] The terms "first," "second," "third," etc., used in this disclosure, in the specification, claims, and accompanying drawings are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0035] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0036] The display device provided in this disclosure can have various implementation forms, such as a television, a smart television, a laser projection device, a monitor, an electronic bulletin board, an electronic table, a mobile phone, a tablet computer, a laptop computer, a handheld computer, an in-vehicle electronic device, etc.

[0037] Figure 1 This is a schematic diagram illustrating an operational scenario between a display device and a control device according to an embodiment, wherein the control device includes a smart device or a control apparatus. Figure 1 As shown, the user can operate the display device 200 through the smart device 300 or the control device 100.

[0038] In some embodiments, the control device 100 may be a remote control. Communication between the remote control and the display device includes infrared protocol communication, Bluetooth protocol communication, and other short-range communication methods, controlling the display device 200 wirelessly or via wired means. Users can control the display device 200 by inputting user commands through buttons on the remote control, voice input, control panel input, etc.

[0039] In some embodiments, a smart device 300 (such as a mobile terminal, tablet computer, computer, laptop computer, etc.) can also be used to control the display device 200. For example, an application running on the smart device can be used to control the display device 200.

[0040] In some embodiments, the display device may receive instructions not through the aforementioned smart devices or control devices, but through touch or gestures.

[0041] In some embodiments, the display device 200 can also be controlled in ways other than the control device 100 and the smart device 300. For example, it can be controlled by directly receiving the user's voice commands through a module configured inside the display device 200 for acquiring voice commands, or it can be controlled by receiving the user's voice commands through a voice control device set outside the display device 200.

[0042] In some embodiments, the display device 200 also communicates with the server 400. The display device 200 may communicate via a local area network (LAN), wireless local area network (WLAN), and other networks. The server 400 may provide various content and interactive features to the display device 200. The server 400 may be a cluster or multiple clusters, and may include one or more types of servers.

[0043] Figure 2 An exemplary block diagram of the configuration of the control device 100 according to an exemplary embodiment is shown. Figure 2 As shown, the control device 100 includes a controller 110, a communication interface 130, a user input / output interface 140, an external memory, and a power supply. The control device 100 can receive user input operation commands and convert the operation commands into commands that the display device 200 can recognize and respond to, thus acting as an intermediary for interaction between the user and the display device 200.

[0044] like Figure 3 The display device 200 includes at least one of the following: a tuner 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a user interface 280, an external memory, and a power supply.

[0045] In some embodiments, the controller includes a processor, a video processor, an audio processor, a graphics processor, RAM, ROM, and a first interface to an nth interface for input / output.

[0046] The display 260 includes a display screen assembly for presenting images, a driving assembly for driving image display, a component for receiving image signals from the controller output, and a user control UI interface for displaying video content, image content, menu control interface, and user control UI interface.

[0047] The display 260 can be an LCD display, an OLED display, or a projection display, and can also be a projection device and a projection screen.

[0048] The communicator 220 is a component used to communicate with external devices or servers according to various communication protocol types. For example, the communicator may include at least one of the following: a Wi-Fi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. The display device 200 can establish the transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.

[0049] User interface 280 can be used to receive control signals from control device 100 (such as an infrared remote control). It can also be used to directly receive user input operation commands and convert the operation commands into commands that the display device 200 can recognize and respond to; in this case, it can be called a user input interface.

[0050] Detector 230 is used to collect signals from the external environment or to interact with the external environment. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; or, detector 230 includes an image acquisition device, such as a camera, which can be used to collect external environmental scenes, user attributes, or user interaction gestures; or, detector 230 includes a sound acquisition device, such as a microphone, for receiving external sounds.

[0051] The external device interface 240 may include, but is not limited to, one or more of the following: High Definition Multimedia Interface (HDMI), analog or high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. It may also be a composite input / output interface formed by multiple interfaces mentioned above.

[0052] The tuner / demodulator 210 receives broadcast television signals via wired or wireless means, and demodulates audio and video signals, such as EPG data signals, from multiple wireless or wired broadcast television signals.

[0053] In some embodiments, the controller 250 and the tuner 210 may be located in different separate devices, that is, the tuner 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

[0054] The controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory (internal or external memory). The controller 250 controls the overall operation of the display device 200. For example, in response to receiving a user command to select a UI object to display on the monitor 260, the controller 250 can perform operations related to the object selected by the user command.

[0055] In some embodiments, the controller includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), and random access memory (RAM), read-only memory (ROM), a first to an nth interface for input / output, a communication bus, etc.

[0056] RAM, also known as main memory, is an internal memory that directly exchanges data with the controller. It can be read and written at any time (except during refresh) and is very fast, typically serving as temporary data storage for the operating system or other running programs. Its biggest difference from ROM is data volatility; data stored in RAM is lost when power is off. RAM is used in computers and digital systems to temporarily store programs, data, and intermediate results. ROM operates in a non-destructive read-only manner; information can only be read, not written. Once information is written, it is fixed and will not be lost even if power is cut off; therefore, it is also called fixed-function memory.

[0057] Users can input commands through a graphical user interface (GUI) displayed on the monitor 260, and the user input interface receives the user input commands through the GUI. Alternatively, users can input commands by entering specific sounds or gestures, and the user input interface receives the user input commands by recognizing the sounds or gestures through sensors.

[0058] A "user interface" is the medium through which an application or operating system interacts and exchanges information with the user. It converts information from its internal form to a form that the user can accept. A common form of user interface is the graphical user interface (GUI), which refers to a user interface related to computer operation displayed graphically. It can be an icon, window, control, or other interface element displayed on the screen of a display device. Controls can include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and widgets.

[0059] Taking televisions (TVs) as an example, more and more TV manufacturers are supporting combined sound output from TVs and their own soundbars. Due to differences in hardware capabilities across different TV platforms—for instance, some TVs are 2.0 channels, some 2.1 channels, some 2.1.2 channels, some 4.1 channels, some 4.1.2 channels, and some 5.1.2 channels—and some models have separate overhead speakers output from the TV, while others lack overhead speakers and output from the soundbars, and vice versa, some models support 2.1 channels, some 3.1, some 4.1.2, and some 5.1.2, etc.—the current strategy is to pair a specific TV model with a specific soundbar model for combined sound output. However, with the increasing number of TV and soundbar models supporting combined sound output, it's impossible to rigidly bind users to specific product types. Therefore, when a TV and a soundbar that support chords are used together to produce sound, there may be a channel conflict problem. For example, when a TV that supports 4.1.2 channels and a soundbar that supports 4.1.2 channels are used together to produce sound, there will be a channel overlap problem.

[0060] In some embodiments of this disclosure, the television can be a traditional television, a laser television, etc.; the audio equipment can include an all-in-one audio system, an audio system with an external subwoofer, an audio system with a different number of satellite speakers, etc.

[0061] This disclosure provides a display device, an audio device, and an audio signal playback method. The display device and the audio device can interact to implement the audio signal playback method provided in this disclosure, or a functional module or entity within the display device can interact with a functional module or entity within the audio device to implement the audio signal playback method provided in this disclosure. The controller included in the display device can correspond to the above-described... Figure 3 The controller 250 in the middle.

[0062] In some embodiments of this disclosure, the display device includes a controller configured to: in response to an operation of playing a target audio signal, if the display device supports a chord function, send a target request message, the target request message being used to request the audio capabilities and channel parameters of an audio device; receive a target response message corresponding to the target request message, the target response message carrying audio capability information and first parameter information of the audio device, the first parameter information being used to indicate a first channel supported by the audio device; if the audio capability information indicates that the audio device supports a chord function, determine a target chord scheme based on the first parameter information and second parameter information of the display device, the target chord... The scheme includes first channel allocation information and second channel allocation information. Second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Based on the target harmony scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal; the first audio signal is played.

[0063] The target audio signal is a multi-channel audio signal. A multi-channel audio signal refers to an audio signal containing multiple independent channels, each of which can carry different audio information, thereby providing listeners with a richer, more spatial, and immersive audio experience.

[0064] Among them, the chorus function, also known as the combined sound function, refers to the function of two or more audio devices playing audio signals together through their respective channel systems.

[0065] It is understandable that, in response to the operation of playing the target audio signal, the display device sends a target request message to the audio device and receives a target response message from the audio device in response to the target request message, provided that a communication connection with the audio device is detected and the display device supports the harmony function.

[0066] In some embodiments of this disclosure, the audio capabilities and channel parameters of an audio device can be requested through a single request message, or two separate request messages can be used to request the audio capabilities and channel parameters of the audio device. The specific method can be determined according to the actual situation and is not limited here.

[0067] In some embodiments of this disclosure, the target request message includes a first request message and a second request message, and the target response message includes a first response message and a second response message. The process of requesting to obtain the audio capabilities and channel parameters of an audio device specifically includes: in response to the operation of playing a target audio signal, if the display device supports a chorus function, sending a first request message to the audio device, the first request message being used to request the audio capabilities of the audio device; receiving a first response message corresponding to the first request message from the audio device, the first response message carrying audio capability information of the audio device; if the audio capability information indicates that the audio device supports a chorus function, sending a second request message to the audio device, the second request message being used to request the channel parameters of the audio device; and receiving a second response message corresponding to the second request message from the audio device, the second response message carrying first parameter information, the first parameter information being used to indicate the first channel supported by the audio device.

[0068] The target request message may also include other request messages, and the target response message may also include other response messages; this is not limited here.

[0069] In some embodiments of this disclosure, based on the extended HDMI CEC communication protocol between the display device (such as a TV) and the audio device, the display device obtains the audio capabilities and channel parameters of the audio device through information interaction with the audio device, thereby determining the target sound combination scheme. This allows the display device and the audio device to jointly emit sound through different types of channels, thus avoiding the problem of channel out-of-range sound and poor sound effect caused by the display device and the audio device using the same type of channel to broadcast audio signals.

[0070] In some embodiments of this disclosure, the following functions can be achieved by extending the manufacturer-customizable portion of the HDMI CEC communication protocol: 1. Adding an information exchange function to indicate whether the audio function is supported. The audio device responds after receiving a first request message from the TV requesting the audio device's audio capabilities. After both the TV and the audio device verify their identities during the CEC handshake, the TV can request the audio device's audio capabilities, and the audio device responds correctly based on its own capabilities. 2. Adding an information exchange function to request the audio device's channel parameters. After the audio device and TV have communicated support for the audio function, the TV requests the audio device's channel parameters. The channel parameters can be the device type, which represents the audio device's channel capabilities.

[0071] In some embodiments of this disclosure, it is necessary to design information interaction instructions that satisfy the HDMI CEC communication protocol, such as setting the format of a first request message, setting the format of a first effect message, setting the format of a second request message, setting the format of a second response message, or setting the format of a target request message and setting the format of a target response message.

[0072] In some embodiments of this disclosure, the audio device may also request the channel parameters of the TV, which is not limited here.

[0073] For example, the TV and soundbar complete identity verification via CEC handshake (which can be done by matching the supplier identification code or manufacturer identification code (vendor ID), or other methods, which are not limited here). If the TV supports the harmonic function, it requests the soundbar's audio capabilities (first request message). Upon receiving this instruction, the soundbar reports its audio capabilities (first response message). The TV parses whether the soundbar supports the harmonic function. If it does, it further requests the soundbar's channel parameters (second request message). The soundbar responds according to its own audio capabilities. The TV can also actively report its own channel parameters to the soundbar, and the soundbar stores the TV's channel parameters upon receiving them.

[0074] The first parameter information is used to indicate the first channel supported by the audio device. It may include the device type of the audio device (e.g., 2.1 audio, 5.1 audio, etc.) or the type of channel supported by the audio device (e.g., the speaker device supports left left-right channels, right left-right channels, center channel, left surround channel, and right surround channel). The specific information can be determined according to the actual situation and is not limited in this case.

[0075] The first parameter information may also include other information, such as detailed parameter information of the channels supported by the audio equipment, such as the low-frequency extension value (L) of the subwoofer channel. f Information such as power (P) and other parameters, or the relative position information of channels (corresponding speakers) in audio equipment, can be determined according to actual usage needs, and is not limited here.

[0076] The description of the second parameter information can be found in the above description of the first parameter information, and will not be repeated here.

[0077] In some embodiments of this disclosure, the first parameter information may further include the low-frequency extension value (L) of the subwoofer channel of the audio device. f The second parameter information may also include parameters such as power (P) and the low-frequency extension (L) of the subwoofer channel of the display device. f Information such as power (P) and other parameters allows the display device to combine the low-frequency extension (L) of the audio equipment, including the first channel and the subwoofer channel.f Information such as power (P) and other parameters, as well as the low-frequency extension (L) of the second channel and subwoofer channel of the display device. f The system uses parameters such as power (P) to determine the target sound combination scheme, and whether the subwoofer channel in the target sound combination scheme uses the subwoofer channel of the display device or the subwoofer channel of the audio device.

[0078] In some embodiments of this disclosure, the first parameter information may further include the relative position information of the channels in the audio device, and the second parameter information may further include the relative position information of the channels in the display device. Thus, the display device can combine the first channel included in the audio device and the relative position information of the channels in the audio device, as well as the second channel included in the display device and the relative position information of the channels in the display device, to determine the target harmonies.

[0079] In some embodiments of this disclosure, the display device can determine a matching target harmony scheme from at least one preset harmony scheme based on the first parameter information and the second parameter information; the display device can also determine the matching harmony scheme by combining the first parameter information, the second parameter information, and the relative position information between the display device and the audio device, etc.; the specific determination can be made according to the actual situation, and is not limited here.

[0080] Among them, at least one preset harmony scheme may include preset harmony schemes corresponding to the display device and various types of audio devices respectively, such as preset harmony schemes corresponding to the display device and 2.1 audio devices, preset harmony schemes corresponding to the display device and 5.1 audio devices, etc., which are not limited here.

[0081] In some embodiments of this disclosure, the display device may correspond to different device types, and the at least one preset harmony scheme stored in the display device may be different, which is not limited here.

[0082] In this embodiment of the disclosure, when both the display device and the audio device support the chord function, the display device determines the target chord scheme based on the obtained channel parameters of the audio device and its own channel parameters, so that the display device and the audio device can jointly produce sound through different types of channels (the display device plays the first audio signal, and the audio device plays the second audio signal), thereby avoiding the problem of channel out-of-range and poor sound effect caused by the display device and the audio device using the same type of channel to play audio signals.

[0083] In some embodiments of this disclosure, the controller performs a process based on first parameter information and second parameter information of the display device to determine a target harmony scheme. Specifically, it is configured to determine a target harmony scheme that matches the first parameter information from a plurality of preset harmony schemes that match the second parameter information.

[0084] It is understood that each preset synthesis scheme among the multiple preset harmony schemes stored in the display device matches the second parameter information, that is, the channels supported by the display device corresponding to each preset harmony scheme are the channels included in the first channel indicated by the second parameter information; the target harmony scheme is the channel supported by the audio device corresponding to the multiple preset harmony schemes, which are the channels included in the second channel indicated by the first parameter.

[0085] In some embodiments of this disclosure, if multiple preset harmony schemes include multiple candidate harmony schemes that match the first parameter information, then the candidate harmony scheme with the most channels supported by the corresponding audio device can be selected from the multiple candidate harmony schemes to determine as the target harmony scheme; or multiple candidate harmony schemes can be displayed to the user, and the user can select the candidate harmony scheme that meets the requirements as the target harmony scheme. The specific selection can be determined according to the actual situation and is not limited here.

[0086] In this embodiment of the disclosure, by combining the first parameter information and the second channel information, the target harmony scheme is determined from multiple preset harmony schemes, which can improve the efficiency of determining the harmony scheme and improve the user experience.

[0087] In some embodiments of this disclosure, before the controller executes the acquisition of the first audio signal corresponding to the fourth channel in the target audio signal based on the target harmony scheme and the target audio signal, and sends the target indication information, it is further configured to: display first prompt information based on the target harmony scheme, the first prompt information being used to prompt the user about the relative positional relationship between the display device and the audio device, and / or, the first prompt information being used to prompt the user about the position of the third channel in the display device and the position of the fourth channel in the audio device.

[0088] It is understandable that the first prompt message can be used to indicate the relative positional relationship between the display device and the audio device. The first prompt message can also be used to indicate the relative positional relationship between the third channel in the display device and the fourth channel in the audio device. The first prompt message can also be used to indicate other information, which can be determined according to the actual situation and is not limited here.

[0089] The first prompt can be a text prompt, a voice prompt, or an image prompt; there is no limitation here.

[0090] In some embodiments of this disclosure, the display device is a TV. Based on the first parameter information obtained during the interaction between the TV and the audio device, and the second parameter information of the TV, the TV determines the target fusion scheme and presents the target fusion scheme through image prompt information. The image prompt information displays the third channel of the TV, the fourth channel of the audio device, and the relative positional relationship between the third channel and the fourth channel, as well as the relative positional relationship between the TV and the display device.

[0091] Example 1: The TV is a Laser TV, and the audio equipment is a 4.1.2 speaker system. Due to the hardware size limitations of the Laser TV, the left and right channels are very close together. Therefore, the left and right channels of the TV are suitable as the center channel. The satellite speakers of the 4.1.2 speaker system can increase the width, surround sound, height, and sound field. Therefore, when the Laser TV is connected to the 4.1.2 speaker system, it defaults to the following mode: Figure 4 As shown, in the laser home theater mode: the TV's third channel includes the center channel, and the audio equipment's fourth channel includes the left and right channels, subwoofer channel, left surround channel, right surround channel, left sky channel, and right sky channel. Mark "41" indicates the TV's components, and mark "42" indicates the audio equipment's components. When this mode is selected, the TV interacts with the audio equipment to notify it of the second channel allocation information. The TV is responsible for distributing the corresponding channel data from the target audio signal to each channel based on the first channel allocation information. For example, the center channel data is synthesized using the laser's left and right channels, while other data is processed by the audio equipment. The audio equipment can reasonably control its own channel status based on the second channel allocation information (e.g., the center channel is muted or its data is not processed, while the left and right channels, subwoofer channel, left surround channel, right surround channel, left sky channel, and right sky channel play the corresponding channel audio signal from the target audio signal).

[0092] Example 2: If the TV supports overhead sound and the audio system is a 5.1 system, then in a home environment, the TV is placed relatively high. Therefore, the height of the TV, combined with the fact that the overhead speakers are generally located near the top of the screen, can be used as overhead sound channels, providing the following mode 1 (e.g., Figure 5 As shown, where "51" indicates the components of a television and "52" indicates the components of an audio system: the third channel of the TV includes a ceiling channel, and the fourth channel of the audio system includes left and right channels, a center channel, and left and right surround channels; or it provides the following mode 2 (e.g. Figure 6 (As shown): The third channel of the TV includes left and right channels, center channel, and sky channel, while the fourth channel of the audio system includes left and right surround channels. Regardless of the selected mode, the TV communicates the second channel allocation information to the audio system through interaction with the audio system. The TV is responsible for distributing the corresponding channel data in the target audio signal to each channel based on the first channel allocation information. The audio system can then reasonably control its own channel status according to the second channel allocation information.

[0093] Example 3: The TV is a 2.1.2 TV, and the audio equipment is a wireless 2.1 speaker. Taking advantage of the ease of placement of the wireless 2.1 speaker, its two channels can be used as left and right surround channels, forming a 4.1.2 channel configuration together with the TV. (See image prompt for details.) Figure 7 As shown, "71" indicates the components of the television, and "72" indicates the components of the audio equipment. The TV communicates the second channel allocation information to the audio equipment through interaction with it. The TV is responsible for distributing the corresponding channel data in the target audio signal to each channel based on the first channel allocation information. The audio equipment can reasonably control its own channel status according to the second channel allocation information.

[0094] In this embodiment of the disclosure, by displaying the first prompt information, users can better understand the target harmony scheme, thereby improving the user experience.

[0095] The aforementioned preset harmonization scheme is a target harmonization scheme determined based on the channel parameters of the display device and the audio device. While it resolves the channel conflict issue, it only improves the user experience to a certain extent. Different relative positions of the display device and the audio device may necessitate different harmonization schemes to achieve the best sound effect. For example, in Example 2 above, should we use mode 1, mode 2, or another mode? The only criterion is the sound effect after combined sound production, and two crucial factors affecting sound effect are sensitivity and channel distance difference.

[0096] In some embodiments of this disclosure, the controller performs a determination of a target harmonies based on first parameter information and second parameter information of the display device. Specifically, it is configured to: display a second prompt message to indicate to the user whether the relative positions of the display device, the audio device, and the remote control meet target conditions. These target conditions indicate that: a first perpendicular plane connecting the center of the left channel speaker and the center of the right channel speaker of the display device is parallel to a second perpendicular plane connecting the center of the left channel speaker and the center of the right channel speaker of the audio device; the central axis of the remote control is perpendicular to the first perpendicular plane; the minimum distance from the central axis to a first plane passing through the display device and perpendicular to the first perpendicular plane is less than or equal to a first distance; the minimum distance from the central axis to a second plane passing through the audio device and perpendicular to the second perpendicular plane is less than or equal to a second distance; and the distance from the center of the remote control to the center of the display device is greater than or equal to a third distance and less than or equal to a fourth distance, where the third distance is less than the fourth distance; and in response to a received confirmation operation for the second prompt message, the controller controls the left and right channel speakers of the display device to sequentially play audio signals. The remote control sequentially receives a first sound signal from the left channel speaker of the display device and a second sound signal from the right channel speaker of the display device via the microphone; sends a control message to control the left and right channel speakers of the audio device to play audio signals sequentially; and sequentially receives a third sound signal from the left channel speaker of the audio device and a fourth sound signal from the right channel speaker of the audio device via the microphone of the remote control; based on the first, second, third, and fourth sound signals, it determines the display device... The left and right channel speakers of the equipment correspond to the first and second sound pressure levels, respectively, and the left and right channel speakers of the audio equipment correspond to the third and fourth sound pressure levels, respectively. When the first difference is greater than the second difference, it is determined that the third channel includes the left and right channels, and the fourth channel includes the center channel. The first difference is the difference between the first and second sound pressure levels, and the second difference is the difference between the third and fourth sound pressure levels. When the first difference is less than the second difference, it is determined that the third channel includes the center channel, and the fourth channel includes the left and right channels.

[0097] The first and second perpendicular planes can coincide, and the minimum distance between the first and second perpendicular planes can be less than a distance threshold. The distance threshold can be determined according to the actual situation and is not limited here.

[0098] Wherein, the first plane is the plane closest to the central axis among the planes passing through the display device and perpendicular to the first vertical plane, and the second plane is the plane closest to the central axis among the planes passing through the audio device and perpendicular to the first vertical plane. The first distance can be greater than or equal to the second distance, or it can be less than the second distance; no limitation is made here.

[0099] The first, second, third, and fourth distances can be determined based on actual usage and are not limited here.

[0100] To improve measurement accuracy, the optimal distance between the remote control's microphone and the display device is between 0.4 meters and 1 meter. Therefore, the optimal distance between the center of the remote control and the center of the display device can be determined based on the optimal distance range between the microphone and the display device.

[0101] It is understood that in this embodiment of the disclosure, sensitivity and channel distance are measured using a microphone-enabled remote control of the display device. When the measurement is initiated, the user is prompted to set the relative positions of the display device, the audio device, and the remote control to meet the target conditions. Typically, the display device and audio device are centered, and the left and right channels are symmetrical. The distance between the speakers of the left and right channels of the display device compared to the distance between the speakers of the left and right channels of the audio device can result in three possibilities: greater than, equal to, or less than. For example... Figure 8 As shown, after the relative positions of the display device, the audio device, and the remote control meet the target conditions, the measurement program sequentially controls the left and right channels of the display device, the left and right channels of the audio device, and the microphone device to play audio signals. The microphone device records the collected sound signals from each channel and outputs them to the measurement program. The measurement program analyzes the sound signals to obtain the sound pressure level values ​​for the four channels (i.e., the first and second sound pressure levels corresponding to the left and right channel speakers of the display device, respectively, and the third and fourth sound pressure levels corresponding to the left and right channel speakers of the audio device, respectively), denoted as SL1, SL2, SL3, and SL4. The distances of the microphone from the left and right channel speakers of the display device, and the left and right channel speakers of the audio device, are L1, L2, L3, and L4, respectively. Based on the relationship between the sound pressure level of a point source and distance in a free sound field, the following relationship can be obtained:

[0102] SL1-SL2=20lg(L2 / L1)=20lg((L1+D1) / L1)=20lg(1+D1 / L1),

[0103] SL3-SL4=20lg(L4 / L3)=20lg((L3+D2) / L3)=20lg(1+D2 / L3).

[0104] When the measurement program is started, the placement of the microphone on the remote control is predetermined, meaning L1 + D1 / 2 is a constant, and similarly, L3 + D2 / 2 is a constant. Therefore, the larger D1 is, the smaller L1 is, and the smaller D1 is, the larger L1 is; similarly, D2 and L3 follow the same rule. Therefore, according to the formula, the value of SL1 - SL2 depends entirely on D1, and the value of SL3 - SL4 depends entirely on D2. By comparing the values ​​of (SL1 - SL2) and (SL3 - SL4), the values ​​of D1 and D2 can be determined.

[0105] In summary, when the first difference (the difference between the first and second sound pressure levels) is greater than the second difference (the difference between the third and fourth sound pressure levels), since the distance between the left and right speakers of the display device is greater than the distance between the left and right speakers of the audio device, it is determined that the speakers of the display device are suitable for producing left and right channels. In this case, the target sound combination scheme selects the left and right channels of the display device to produce sound, and the center channel of the audio device to produce sound (i.e., the third channel includes the left and right channels, and the fourth channel includes the center channel). When the first difference is less than the second difference, since the distance between the left and right speakers of the display device is less than the distance between the left and right speakers of the audio device, the speakers of the display device are suitable for producing the center channel, and the speakers of the audio device are suitable for producing the left and right channels (i.e., the third channel includes the center channel, and the fourth channel includes the left and right channels).

[0106] In some embodiments of this disclosure, when it is determined that the third channel includes the left channel and the right channel, and the fourth channel includes the center channel, the third channel may also include other channels, and the fourth channel may also include other channels. The specifics can be determined according to the actual situation, and are not limited here.

[0107] In some embodiments of this disclosure, when it is determined that the third channel includes the center channel and the fourth channel includes the left and right channels, the third channel may also include other channels, and the fourth channel may also include other channels. The specifics can be determined according to the actual situation and are not limited here.

[0108] In this embodiment of the disclosure, by setting the relative positions between the display device, the audio device, and the remote control to meet the target conditions, and then measuring the sensitivity and channel distance of the display device and the audio device through the microphone of the remote control, the target sound combination scheme can be determined more accurately, and the sound effect of the display device and the audio device working together can be improved.

[0109] In some embodiments of this disclosure, the controller is further configured to: determine a target difference when the first difference is equal to the second difference, the target difference being the difference between the first sound pressure level and the third sound pressure level, or the difference between the second sound pressure level and the fourth sound pressure level; determine that the third channel includes the center channel and the fourth channel includes the left and right channels when the target difference is greater than or equal to 0; and determine that the third channel includes the left and right channels and the fourth channel includes the center channel when the target difference is less than 0.

[0110] It is understandable that the distance between the left and right speakers of the display device is equal to the distance between the left and right speakers of the audio device. Therefore, the relationship between the sound pressure level (SPL) value of the left speaker of the display device and the SPL value of the left speaker of the audio device, or the relationship between the SPL value of the right speaker of the display device and the SPL value of the right speaker of the audio device, can be used to determine which of the display device and the audio device outputs the left and right channels and which outputs the center channel.

[0111] The sound pressure level (SPL) is used to characterize the intensity of the sound produced by the vocal tract.

[0112] It can be understood that the target difference is the difference between the first and third sound pressure levels (i.e., SL1-SL3). If SL1-SL3>0, it means that SL1>SL3, indicating that the loudness of the left speaker of the display device is high. If it is used as the center channel, the human voice will be clear. Therefore, it is determined that the left and right speakers of the display device are suitable as the center channel, and the left and right speakers of the audio equipment are suitable as the left and right channels (i.e., the third channel includes the center channel, and the fourth channel includes the left and right channels). Conversely, if SL1-SL3<0, it is determined that the left and right speakers of the display device are suitable as the left and right channels, and the left and right speakers of the audio equipment are suitable as the center channel (i.e., the third channel includes the left and right channels, and the fourth channel includes the center channel).

[0113] In this embodiment of the disclosure, when the first difference is equal to the second difference, determining which of the third and fourth channels includes the left and right channels and which includes the center channel based on the target difference can determine a more accurate target sound combination scheme and improve the sound effect of the combined sound output of the display device and the audio device.

[0114] In some embodiments of this disclosure, the first parameter information includes first bass parameter information, which is used to indicate the first bass parameter value corresponding to the subwoofer channel of the audio device. The second parameter information includes second bass parameter information, which is used to indicate the second bass parameter value corresponding to the subwoofer channel of the display device. The controller performs a determination of a target harmonic scheme based on the first parameter information and the second parameter information of the display device. It is also specifically configured to: determine that the fourth channel includes the subwoofer channel when the first bass parameter value is greater than the second bass parameter value; and determine that the third channel includes the subwoofer channel when the first bass parameter value is less than the second bass parameter value.

[0115] The first bass parameter information may include the first bass parameter value, or it may include parameters such as the low-frequency extension value (Lf) and power (P) used to determine the first bass parameter value. The specific information can be determined according to the actual situation and is not limited here.

[0116] The description of the second bass parameter information can be found in the above description of the first bass parameter information, and will not be repeated here.

[0117] For example, if the first bass parameter information includes low-frequency extension (Lf) and power (P), the first bass parameter value can be determined according to the following formula:

[0118] Lp = a*40 / Lf + (1-a)*P / 200;

[0119] Where 'a' is a weighting coefficient, a < 1; 'Lf' is the low-frequency extension value; 'P' is the power of the bass component; and 'Lp' is the bass parameter value. Table 1 below shows an example of how 'Lp' is calculated.

[0120] Table 1

[0121]

[0122] Since a smaller bass parameter value results in better sound quality for the subwoofer channel, the fourth channel is determined to include the subwoofer channel when the first bass parameter value is greater than the second bass parameter value; conversely, the third channel is determined to include the subwoofer channel when the first bass parameter value is less than the second bass parameter value. This allows for a more accurate determination of the subwoofer channel in the target sound combination scheme, improving the combined sound effect of the display and audio equipment.

[0123] It can be understood that, in the case where only one of the display device and the audio device comprises a subwoofer channel, the subwoofer channel comprised in the one device is used as the subwoofer channel of the target combined sound scheme; in the case where both the display device and the audio device comprise subwoofer channels, it may be determined according to the magnitude relationship between the first bass parameter value and the second bass parameter value whether the subwoofer channel in the target combined sound scheme is the subwoofer channel of the display device or the subwoofer channel of the audio device.

[0124] For example, taking a 7.1.4 TV as the display device and a Soundbar as the audio device, if SL1-SL2>SL3-SL4 and the Lp of the TV and the Lp of the Soundbar are unknown, the target combined sound scheme at least comprises: the TV outputs left and right channels, and the Soundbar outputs a center channel, and other channels may be determined in combination with the device type of the Soundbar. For example, assuming that the Soundbar is a 2.0 audio device, only the TV supports the subwoofer channel, so the target combined sound scheme further comprises that the TV outputs the subwoofer channel. In this case, the target combined sound scheme may further comprise that the TV outputs left and right surround channels, height channels and the like, or the target combined sound scheme does not comprise other channels;

[0125] If SL1-SL2>SL3-SL4 and the Lp of the TV is greater than the Lp of the Soundbar, the target combined sound scheme at least comprises: the TV outputs left and right channels and a subwoofer channel, and the Soundbar outputs a center channel; if SL1-SL2>SL3-SL4 and the Lp of the TV is less than the Lp of the Soundbar, the target combined sound scheme is: the TV outputs left and right channels, and the Soundbar outputs a center channel and a subwoofer channel, and other channels are determined in combination with the device type of the audio device. For example, assuming that the Soundbar is a 2.1 audio device, in this case, the target combined sound scheme may further comprise that the TV outputs left and right surround channels, height channels and the like, or the target combined sound scheme does not comprise other channels; assuming that the Soundbar is a 5.1 audio device, the target combined sound scheme may further comprise that the Soundbar outputs left and right surround channels, and in this case, the target combined sound scheme may further comprise that the TV outputs height channels and the like, or the target combined sound scheme does not additionally comprise height channels.

[0126] If SL1-SL2<SL3-SL4 and the Lp of the TV and the Lp of the Soundbar are unknown, the target combined sound scheme at least comprises: the TV outputs a center channel, and the Soundbar outputs left and right channels, and other channels may be determined in combination with the device type of the Soundbar. For example, assuming that the Soundbar is a 2.0 audio device, only the TV supports the subwoofer channel, so the target combined sound scheme further comprises that the TV outputs the subwoofer channel. In this case, the target combined sound scheme may further comprise that the TV outputs left and right surround channels, height channels and the like, or the target combined sound scheme does not comprise other channels;

[0127] If SL1-SL2<L3-SL4 and the Lp of the TV is greater than the Lp of the Soundbar, the target sound combination scheme at least includes: the TV outputs the center channel and the subwoofer channel, and the Soundbar outputs the left and right channels; if SL1-SL2<SL3-SL4 and the Lp of the TV is less than the Lp of the Soundbar, the target sound combination scheme is: the TV outputs the center channel, and the Soundbar outputs the left and right channels and the subwoofer channel, and other channels are determined in combination with the device type of the audio equipment. For example, assuming the Soundbar is a 2.1 audio system, the target sound combination scheme may further include that the TV outputs left and right surround channels, height channels, etc., or the target sound combination scheme does not include other channels; assuming the Soundbar is a 5.1 audio system, the target sound combination scheme may further include that the Soundbar outputs left and right surround channels, in this case, the target sound combination scheme may further include that the TV outputs height channels, etc., or the target sound combination scheme does not include other channels or height channels.

[0128] In some embodiments of the present disclosure, if both the TV and the audio device include left and right surround channels or height channels, etc., the determination can be made according to the parameters of their respective left and right surround channels or the parameters of their height channels, or can be made according to a preset scheme, which is not limited herein.

[0129] If SL1-SL2=SL3-SL4 and SL1>SL3, the TV outputs the center channel and the Soundbar outputs the left and right channels; other channels can be determined in combination with the device type of the Soundbar. For example, assuming the Soundbar is a 2.0 audio system, only the TV supports the subwoofer channel, the target sound combination scheme further includes that the TV outputs the subwoofer channel, and in this case, the target sound combination scheme may further include that the TV outputs left and right surround channels, height channels, etc., or the target sound combination scheme does not include other channels;

[0130] If SL1-SL2=SL3-SL4 and SL1<SL3, the TV outputs the left and right channels and the Soundbar outputs the center channel; other channels can be determined in combination with the device type of the Soundbar. For example, assuming the Soundbar is a 2.1 audio system, if the Lp of the TV is greater than the Lp of the Soundbar, the target sound combination scheme further includes that the TV outputs the subwoofer channel; if the Lp of the TV is less than the Lp of the Soundbar, the target sound combination scheme further includes that the Soundbar outputs the subwoofer channel, and in this case, the target sound combination scheme may further include that the TV outputs left and right surround channels, height channels, etc., or the target sound combination scheme does not include other channels; assuming the Soundbar is a 5.1 audio system, the target sound combination scheme may further include that the Soundbar outputs left and right surround channels, in this case, the target sound combination scheme may further include that the TV outputs height channels, etc., or the target sound combination scheme does not include other channels or height channels.

[0131] If SL1-SL2 = SL3-SL4 and SL1 = SL3, meaning the sound pressure levels of the TV and the left speaker of the soundbar are exactly the same, the target sound combination scheme can include the TV outputting the center channel, the speakers outputting the left and right channels, and the other channels can be determined based on the soundbar's device type. For example, assuming the soundbar is a 2.0 speaker system, and only the TV supports the subwoofer channel, the target sound combination scheme would also include the TV output subwoofer channel. In this case, the target sound combination scheme could also include the TV output left and right surround channels, sky channel, etc., or the target sound combination scheme might not include other channels. For example, assuming the soundbar is a 2.1 speaker system, if the TV's Lp is greater than the soundbar's Lp, the target sound combination scheme would also include the TV output subwoofer channel. If the TV's Lp is less than the soundbar's Lp, the target sound combination scheme would also include the soundbar output subwoofer channel. In this case, the target sound combination scheme could also include the TV output left and right surround channels, sky channel, etc., or the target sound combination scheme might not include other channels. Assuming the soundbar is a 5.1 speaker system, the target sound combination scheme could also include the soundbar output left and right surround channels. In this case, the target sound combination scheme could also include the TV output sky channel, etc., or the target sound combination scheme might not include other channels, such as the sky channel.

[0132] In some embodiments of this disclosure, the controller performs the following actions: based on the target harmony scheme and the target audio signal, it acquires the first audio signal corresponding to the fourth channel in the target audio signal and sends target indication information. Specifically, it is configured to: based on the target harmony scheme, separate the first audio signal and the second audio signal from the target audio signal; and send target indication information carrying the second audio signal. Thus, by having the display device separate the first audio signal and the second audio signal from the target audio signal based on the target harmony scheme, processing efficiency can be improved.

[0133] In some embodiments of this disclosure, the controller performs the following actions: based on the target harmonic scheme and the target audio signal, it acquires the first audio signal corresponding to the fourth channel in the target audio signal and sends target indication information. Specifically, it is configured to: separate the first audio signal from the target audio signal based on the target harmonic scheme; and send target indication information carrying second channel allocation information and the target audio signal, so that the audio device separates the second audio signal from the target audio signal based on the second channel allocation information and plays the second audio signal. In this way, the first audio signal is separated from the target audio signal by the display device, and the second audio signal is separated from the target audio signal by the audio device, thus reducing the processing load on the display device.

[0134] In some embodiments of this disclosure, the controller performs the following steps to determine a target harmony scheme based on first parameter information and second parameter information of the display device: determining multiple candidate harmony schemes based on the first parameter information and the second parameter information of the display device; displaying the multiple candidate harmony schemes; and determining the target harmony scheme in response to a selection operation among the multiple candidate harmony schemes. Thus, when multiple candidate harmony schemes can be determined based on the first parameter information and the second parameter information of the display device, the user can select a satisfactory candidate harmony scheme as the target harmony scheme, thereby improving the user experience.

[0135] In some embodiments of this disclosure, when there are multiple candidate harmony schemes, the user can trigger the display device to switch the harmony scheme by operation, such as switching from the target harmony scheme to another candidate harmony scheme. The user obtains the third channel allocation information corresponding to the display device and the fourth channel allocation information corresponding to the audio device included in the other candidate harmony scheme. The display device then notifies the audio device of the fourth channel allocation information through interaction with the audio device. Based on the switched third channel allocation information, the display device distributes the corresponding channel data in the target audio signal to each channel. The audio device can distribute the corresponding channel data in the target audio signal to each channel according to the fourth channel allocation information.

[0136] This disclosure provides an audio device, including: a controller configured to: receive a target request message, the target request message being used to request the audio capabilities and channel parameters of the audio device, the target request message being generated by a display device in response to an operation of playing a target audio signal, provided that the display device supports a chord function; and send a target response message corresponding to the target request message, the target response message carrying audio capability information and first parameter information of the audio device, so that the display device, when the audio capability information indicates that the audio device supports a chord function, determines a target chord scheme based on the first parameter information and second parameter information of the display device, the target chord scheme including first channel allocation information and second channel allocation information, the first parameter information being used for... The system indicates the first channel supported by the audio device, the second parameter information indicates the second channel supported by the display device, the first channel allocation information indicates the third channel in the second channel used for playing the target audio signal, the second channel allocation information indicates the fourth channel in the first channel used for playing the target audio signal, and there are no channels of the same type in the third and fourth channels; it receives target indication information, which indicates that when the display device plays the first audio signal corresponding to the fourth channel in the target audio signal, the audio device will synchronously play the second audio signal corresponding to the fourth channel in the target audio signal, and the target indication information and the first audio signal are based on the target harmonization scheme and the target audio signal; and plays the second audio signal.

[0137] In some embodiments of this disclosure, the target indication information carries a second audio signal, which is separated from the target audio signal by the display device based on the target harmony scheme; or, the target indication information carries second channel allocation information and the target audio signal, and after the controller receives the target indication information, it is further configured to separate the second audio signal from the target audio signal based on the second channel allocation information.

[0138] In this embodiment of the disclosure, the process of achieving joint sound generation for the audio equipment can be referred to the detailed description of the process of achieving joint sound generation for the display device described above, and will not be repeated here.

[0139] See Figure 9 In some embodiments, the system is divided into four layers, from top to bottom: the Applications layer (referred to as the "Application Layer"), the Application Framework layer (referred to as the "Framework Layer"), the Android runtime and system library layer (referred to as the "System Runtime Layer"), and the kernel layer.

[0140] In some embodiments, at least one application runs in the application layer. These applications may be Windows programs, system settings programs, or clock programs that come with the operating system; they may also be applications developed by third-party developers. In specific implementations, the application packages in the application layer are not limited to the examples above.

[0141] The framework layer provides application programming interfaces (APIs) and a programming framework for applications. The application framework layer includes predefined functions. It acts as a central processing unit, determining the actions taken by applications within the application layer. Through the API, applications can access system resources and obtain system services during execution.

[0142] like Figure 9 As shown, in this embodiment of the disclosure, the application framework layer includes managers, content providers, etc., wherein the managers include at least one of the following modules: ActivityManager, which interacts with all activities running in the system; LocationManager, which provides access to system location services for system services or applications; PackageManager, which retrieves various information related to application packages currently installed on the device; NotificationManager, which controls the display and clearing of notification messages; and WindowManager, which manages icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0143] In some embodiments, the Activity Manager manages the lifecycle of individual applications and common navigation and back functions, such as controlling application exit, opening, and back actions. The Window Manager manages all window programs, such as obtaining the screen size, determining if a status bar is present, locking the screen, capturing the screen, and controlling display window changes (e.g., shrinking the display window, shaking the display, distorting the display, etc.).

[0144] In some embodiments, the system runtime library layer provides support for the upper layer, namely the framework layer. When the framework layer is used, the Android operating system runs the C / C++ libraries contained in the system runtime library layer to implement the functions that the framework layer needs to perform.

[0145] In some embodiments, the kernel layer is a layer between hardware and software. For example... Figure 9As shown, the kernel layer includes at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power driver.

[0146] To illustrate this solution in more detail, the following will use examples to illustrate it. Figures 10 to 13 To explain, it is understandable that Figures 10 to 13 The steps involved may include more or fewer steps in actual implementation, and the order of these steps may also be different, as long as the audio signal playback method provided in the embodiments of this disclosure can be achieved. A detailed description of the audio signal playback method provided in the embodiments of this disclosure can be found in the relevant description of the above-mentioned display device, and the same or similar technical effects can be achieved, which will not be repeated here.

[0147] Figure 10 The present invention provides a flowchart of steps for implementing an audio signal playback method according to one or more embodiments of the present disclosure. The audio signal playback method may include the following steps S1001 to S1009.

[0148] S1001. In response to the operation of playing the target audio signal, if the display device supports the chorus function, a target request message is sent.

[0149] The target request message is used to request the audio capabilities of the audio equipment and the channel parameters of the audio equipment.

[0150] S1002, The audio equipment receives the target request message.

[0151] The target request message is used to request the audio capabilities and channel parameters of the audio device. The target request message is generated by the display device in response to the operation of playing the target audio signal, provided that the display device supports the chorus function.

[0152] S1003, The audio equipment sends a target response message corresponding to the target request message.

[0153] The target response message carries the audio capability information and first parameter information of the audio device, so that when the audio capability information indicates that the audio device supports the harmonic function, the display device determines the target harmonic scheme based on the first parameter information and the second parameter information of the display device. The target harmonic scheme includes first channel allocation information and second channel allocation information. The first parameter information is used to indicate the first channel supported by the audio device, the second parameter information is used to indicate the second channel supported by the display device, the first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal, and the second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel.

[0154] S1004. The display device receives the target response message corresponding to the target request message.

[0155] The target response message carries audio capability information and first parameter information of the audio device. The first parameter information is used to indicate the first channel supported by the audio device.

[0156] S1005. When the audio capability information indicates that the audio device supports the harmony function, the display device determines the target harmony scheme based on the first parameter information and the second parameter information of the display device.

[0157] The target audio scheme includes first channel allocation information and second channel allocation information. The second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel.

[0158] S1006. The display device, based on the target harmonic scheme and the target audio signal, acquires the first audio signal corresponding to the fourth channel in the target audio signal and sends target indication information.

[0159] The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal;

[0160] S1007, The display device plays the first audio signal.

[0161] S1008, The audio equipment receives the target indication information.

[0162] The target indication information is used to indicate that when the display device plays the first audio signal corresponding to the fourth channel in the target audio signal, the audio device will synchronously play the second audio signal corresponding to the fourth channel in the target audio signal. The target indication information and the first audio signal are based on the target harmony scheme and the target audio signal by the display device.

[0163] S1009, The audio equipment plays the second audio signal.

[0164] In some embodiments of this disclosure, combined with Figure 10 ,like Figure 11 As shown, the above S1005 can be specifically implemented through the following S1005a.

[0165] S1005a The display device determines the target harmony scheme that matches the first parameter information from a plurality of preset harmony schemes that match the second parameter information.

[0166] In some embodiments of this disclosure, combined with Figure 11 ,like Figure 12 As shown, prior to S1006, the audio signal playback method provided in this embodiment may further include the following S1010.

[0167] S1010, The display device displays the first prompt information based on the target harmony scheme.

[0168] The first prompt information is used to inform the user of the relative positional relationship between the display device and the audio device, and / or the first prompt information is used to inform the user of the position of the third channel in the display device and the position of the fourth channel in the audio device.

[0169] In some embodiments of this disclosure, combined with Figure 10 ,like Figure 13 As shown, the above S1005 can be specifically implemented by the following S1005b to S1005h.

[0170] S1005b, The display device displays the second prompt information.

[0171] The second prompt information is used to prompt the user whether the relative positions between the display device, the audio device, and the remote control meet the target conditions. The target conditions are indicated as follows: the first perpendicular plane of the line connecting the center of the left channel speaker and the center of the right channel speaker of the display device is parallel to the second perpendicular plane of the line connecting the center of the left channel speaker and the center of the right channel speaker of the audio device; the central axis of the remote control is perpendicular to the first perpendicular plane, and the minimum distance from the central axis to the first plane passing through the display device and perpendicular to the first perpendicular plane is less than or equal to the first distance; the minimum distance from the central axis to the second plane passing through the audio device and perpendicular to the second perpendicular plane is less than or equal to the second distance; and the distance from the center of the remote control to the center of the display device is greater than or equal to the third distance and less than or equal to the fourth distance, wherein the third distance is less than the fourth distance.

[0172] S1005c, In response to the received confirmation operation for the second prompt information, the display device controls the left and right channel speakers of the display device to play audio signals in sequence, and receives the first sound signal emitted by the left channel speaker of the display device and the second sound signal emitted by the right channel speaker of the display device in sequence through the microphone of the remote control.

[0173] S1005d, The display device sends a control message.

[0174] The control message is used to control the left and right channel speakers of the audio equipment to play audio signals sequentially.

[0175] S1005e, the display device receives, sequentially via the microphone of the remote control, the third sound signal emitted by the left channel speaker of the audio device and the fourth sound signal emitted by the right channel speaker of the audio device.

[0176] S1005f: The display device determines the first sound pressure level and the second sound pressure level corresponding to the left and right channel speakers of the display device, respectively, and the third and fourth sound pressure levels corresponding to the left and right channel speakers of the audio device, respectively, based on the first sound signal, the second sound signal, the third sound signal, and the fourth sound signal.

[0177] S1005g, the display device determines that the third channel includes the left channel and the right channel, and the fourth channel includes the center channel, when the first difference is greater than the second difference.

[0178] The first difference is the difference between the first sound pressure level and the second sound pressure level, and the second difference is the difference between the third sound pressure level and the fourth sound pressure level.

[0179] S1005h, the display device determines that the third channel includes the center channel and the fourth channel includes the left channel and the right channel when the first difference is less than the second difference.

[0180] In some embodiments of this disclosure, the above-mentioned S1005 can be specifically implemented by the following S1005i to S1005k.

[0181] S1005i, the display device determines the target difference when the first difference equals the second difference.

[0182] The target difference is the difference between the first sound pressure level and the third sound pressure level, or the difference between the second sound pressure level and the fourth sound pressure level.

[0183] S1005j, the display device determines that the third channel includes the center channel and the fourth channel includes the left and right channels when the target difference is greater than or equal to 0.

[0184] S1005k, the display device determines that the third channel includes the left and right channels, and the fourth channel includes the center channel, when the target difference is less than 0.

[0185] In some embodiments of this disclosure, the first parameter information includes first bass parameter information, which is used to indicate the first bass parameter value corresponding to the subwoofer channel of the audio device. The second parameter information includes second bass parameter information, which is used to indicate the second bass parameter value corresponding to the subwoofer channel of the display device. The above S1005 can be specifically implemented by the following S1005l to S1005m.

[0186] S1005l: If the display device determines that the fourth channel includes the subwoofer channel when the first bass parameter value is greater than the second bass parameter value.

[0187] S1005m, the display device determines that the third channel includes the subwoofer channel when the first bass parameter value is less than the second bass parameter value.

[0188] In some embodiments of this disclosure, the above-described S1006 can be specifically implemented by the following S1006a to S1006b. S1006a: The display device, based on the target harmonic scheme, separates the first audio signal and the second audio signal from the target audio signal.

[0189] S1006b, The display device sends target indication information, which carries a second audio signal.

[0190] The target indication information carries a second audio signal, which is extracted from the target audio signal by the display device based on the target harmony scheme.

[0191] In some embodiments of this disclosure, the above-mentioned S1006 can be specifically implemented by the following S1006c to S1006d.

[0192] S1006c, The display device separates the first audio signal from the target audio signal based on the target harmonic scheme.

[0193] S1006d, The display device sends target indication information.

[0194] The target indication information carries the second channel allocation information and the target audio signal, so that the audio device can separate the second audio signal from the target audio signal based on the second channel allocation information and play the second audio signal.

[0195] In some embodiments of this disclosure, the above-mentioned S1005 can be specifically implemented by the following S1005n to S1005p. In S1005n, the display device determines multiple candidate harmony schemes based on the first parameter information and the second parameter information of the display device.

[0196] S1005o, the display device showcases these multiple candidate harmonic solutions.

[0197] S1005p, the display device, in response to the selection operation of the target harmony scheme among the multiple candidate synthesis schemes, determines the target harmony scheme.

[0198] In this embodiment of the disclosure, the description of the implementation process of the above-mentioned audio signal playback method can be referred to the detailed description of the implementation of the joint sound generation process of the display device, which will not be repeated here.

[0199] The present invention also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described audio signal playback method and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0200] The computer-readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0201] The present invention provides a computer program product, comprising: when the computer program product is run on a computer, causing the computer to implement the above-described audio signal playback method.

[0202] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

[0203] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that, include: The controller is configured to: in response to an operation of playing a target audio signal, if the display device supports a chorus function, send a target request message, the target request message being used to request the audio capabilities of the audio device and the channel parameters of the audio device; Receive a target response message corresponding to the target request message, the target response message carrying the audio capability information and first parameter information of the audio device, the first parameter information being used to indicate the first channel supported by the audio device; When the audio capability information indicates that the audio device supports the harmonic function, a target harmonic scheme is determined based on the first parameter information and the second parameter information of the display device. The target harmonic scheme includes first channel allocation information and second channel allocation information. The second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Based on the target harmony scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal. Play the first audio signal.

2. The display device according to claim 1, characterized in that, The controller determines a target harmony scheme based on the first parameter information and the second parameter information of the display device, specifically configured as follows: From a plurality of preset harmony schemes that match the second parameter information, a target harmony scheme that matches the first parameter information is determined.

3. The display device according to claim 2, characterized in that, Before the controller executes the target harmonic scheme and the target audio signal, acquires the first audio signal corresponding to the fourth channel in the target audio signal, and sends the target indication information, it is also configured to: Based on the target sound combination scheme, a first prompt message is displayed. The first prompt message is used to prompt the user about the relative positional relationship between the display device and the audio device, and / or, the first prompt message is used to prompt the user about the position of the third channel in the display device and the position of the fourth channel in the audio device.

4. The display device according to claim 1, characterized in that, The controller determines a target harmony scheme based on the first parameter information and the second parameter information of the display device, specifically configured as follows: The system displays a second prompt message to indicate whether the relative positions of the display device, the audio device, and the remote control meet target conditions. The target conditions indicate that: the first perpendicular plane of the line connecting the center of the left channel speaker and the center of the right channel speaker of the display device is parallel to the second perpendicular plane of the line connecting the center of the left channel speaker and the center of the right channel speaker of the audio device; the central axis of the remote control is perpendicular to the first perpendicular plane; the minimum distance from the central axis to the first plane passing through the display device and perpendicular to the first perpendicular plane is less than or equal to the first distance; the minimum distance from the central axis to the second plane passing through the audio device and perpendicular to the second perpendicular plane is less than or equal to the second distance; and the distance from the center of the remote control to the center of the display device is greater than or equal to the third distance and less than or equal to the fourth distance, wherein the third distance is less than the fourth distance. In response to the received confirmation operation for the second prompt information, the left and right channel speakers of the display device are controlled to play audio signals in sequence, and the microphone of the remote control is used to receive the first sound signal emitted by the left channel speaker of the display device and the second sound signal emitted by the right channel speaker of the display device in sequence. Send a control message, the control message being used to control the left channel speaker and right channel speaker of the audio equipment to play audio signals sequentially; The remote control microphone sequentially receives the third sound signal emitted by the left channel speaker of the audio equipment and the fourth sound signal emitted by the right channel speaker of the audio equipment. Based on the first sound signal, the second sound signal, the third sound signal and the fourth sound signal, determine the first sound pressure level and the second sound pressure level corresponding to the left channel speaker and the right channel speaker of the display device, respectively, and the third sound pressure level and the fourth sound pressure level corresponding to the left channel speaker and the right channel speaker of the audio device, respectively. If the first difference is greater than the second difference, it is determined that the third channel includes the left channel and the right channel, and the fourth channel includes the center channel. The first difference is the difference between the first sound pressure level and the second sound pressure level, and the second difference is the difference between the third sound pressure level and the fourth sound pressure level. If the first difference is less than the second difference, it is determined that the third channel includes the center channel, and the fourth channel includes the left channel and the right channel.

5. The display device according to claim 4, characterized in that, The controller is also configured to: If the first difference is equal to the second difference, a target difference is determined, wherein the target difference is the difference between the first sound pressure level and the third sound pressure level, or the difference between the second sound pressure level and the fourth sound pressure level; If the target difference is greater than or equal to 0, it is determined that the third channel includes the center channel and the fourth channel includes the left channel and the right channel. If the target difference is less than 0, the third channel is determined to include the left and right channels, and the fourth channel includes the center channel.

6. The display device according to claim 4 or 5, characterized in that, The first parameter information includes first bass parameter information, which indicates the first bass parameter value corresponding to the subwoofer channel of the audio device. The second parameter information includes second bass parameter information, which indicates the second bass parameter value corresponding to the subwoofer channel of the display device. The controller performs a determination of the target harmonies scheme based on the first parameter information and the second parameter information of the display device, and is further configured to: If the first bass parameter value is greater than the second bass parameter value, it is determined that the fourth channel includes a subwoofer channel; If the first bass parameter value is less than the second bass parameter value, the third channel is determined to include a subwoofer channel.

7. The display device according to claim 1, characterized in that, The controller executes, based on the target harmony scheme and the target audio signal, to acquire the first audio signal corresponding to the fourth channel in the target audio signal, and sends target indication information, specifically configured as follows: Based on the target harmony scheme, the first audio signal and the second audio signal are separated from the target audio signal; Send target indication information, wherein the target indication information carries the second audio signal; or, Based on the target harmony scheme, the first audio signal is separated from the target audio signal; Send target indication information, the target indication information carrying the second channel allocation information and the target audio signal, so that the audio device can separate the second audio signal from the target audio signal based on the second channel allocation information and play the second audio signal.

8. An audio device, characterized in that, include: The controller is configured to receive a target request message, the target request message being used to request the audio capabilities and channel parameters of the audio device, the target request message being generated by the display device in response to an operation of playing a target audio signal, provided that the display device supports a chorus function; A target response message corresponding to the target request message is sent. The target response message carries the audio capability information and first parameter information of the audio device, so that when the audio capability information indicates that the audio device supports the harmonic function, the display device determines a target harmonic scheme based on the first parameter information and the second parameter information of the display device. The target harmonic scheme includes first channel allocation information and second channel allocation information. The first parameter information is used to indicate the first channel supported by the audio device, and the second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used for playing the target audio signal, and the second channel allocation information is used to indicate the fourth channel in the first channel used for playing the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Receive target indication information, the target indication information being used to indicate that when the display device plays the first audio signal in the target audio signal corresponding to the fourth channel, the audio device synchronously plays the second audio signal in the target audio signal corresponding to the fourth channel, the target indication information and the first audio signal being determined by the display device based on the target harmony scheme and the target audio signal; Play the second audio signal.

9. A method for playing audio signals, characterized in that, Applied to display devices, including: In response to the operation of playing a target audio signal, if the display device supports the chorus function, a target request message is sent, the target request message being used to request the audio capabilities of the audio device and the channel parameters of the audio device; Receive a target response message corresponding to the target request message, the target response message carrying the audio capability information and first parameter information of the audio device, the first parameter information being used to indicate the first channel supported by the audio device; When the audio capability information indicates that the audio device supports the harmonic function, a target harmonic scheme is determined based on the first parameter information and the second parameter information of the display device. The target harmonic scheme includes first channel allocation information and second channel allocation information. The second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used to play the target audio signal. The second channel allocation information is used to indicate the fourth channel in the first channel used to play the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Based on the target harmony scheme and the target audio signal, the first audio signal corresponding to the fourth channel in the target audio signal is obtained, and target indication information is sent. The target indication information is used to instruct the audio device to play the second audio signal corresponding to the fourth channel in the target audio signal. Play the first audio signal.

10. A method for playing audio signals, characterized in that, Used in audio equipment, including: Receive a target request message, the target request message being used to request the audio capabilities and channel parameters of the audio device, the target request message being generated by the display device in response to the operation of playing a target audio signal, and provided that the display device supports the harmonic function; A target response message corresponding to the target request message is sent. The target response message carries the audio capability information and first parameter information of the audio device, so that when the audio capability information indicates that the audio device supports the harmonic function, the display device determines a target harmonic scheme based on the first parameter information and the second parameter information of the display device. The target harmonic scheme includes first channel allocation information and second channel allocation information. The first parameter information is used to indicate the first channel supported by the audio device, and the second parameter information is used to indicate the second channel supported by the display device. The first channel allocation information is used to indicate the third channel in the second channel used for playing the target audio signal, and the second channel allocation information is used to indicate the fourth channel in the first channel used for playing the target audio signal. There are no channels of the same type in the third channel and the fourth channel. Receive target indication information, the target indication information being used to indicate that when the display device plays the first audio signal in the target audio signal corresponding to the fourth channel, the audio device synchronously plays the second audio signal in the target audio signal corresponding to the fourth channel, the target indication information and the first audio signal being determined by the display device based on the target harmony scheme and the target audio signal; Play the second audio signal.

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