CN116915350A

CN116915350A - Display apparatus

Info

Publication number: CN116915350A
Application number: CN202310708857.8A
Authority: CN
Inventors: 邓子敬; 王晓晨
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2023-03-30
Filing date: 2023-06-14
Publication date: 2023-10-20
Also published as: CN116760497A; CN116828241A

Abstract

The embodiment of the application belongs to the display technology, and provides display equipment. The display device includes: a processor, the display device further comprising a built-in bluetooth device, and/or the display device being externally connected to at least one bluetooth device, the processor being configured to: acquiring a plurality of audio tracks to be broadcasted in audio; if the Bluetooth device does not support multi-track synchronous broadcasting, constructing a virtual track; converting at least part of the audio tracks in the plurality of audio tracks to be broadcast into mono audio of the virtual audio track; and broadcasting the audio of each channel of the virtual audio track by using the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS. When the Bluetooth device of the display equipment does not support multi-track synchronous broadcasting, the multi-track synchronous broadcasting is realized by constructing a virtual track, the broadcasting efficiency is improved, and the use experience of a user is improved.

Description

Display apparatus

The present application claims priority from the chinese patent office, application number 202310331635.9, application name "display system and audio broadcasting method," filed 30/03/2023, the entire contents of which are incorporated herein by reference.

Technical Field

Embodiments of the present application relate to broadcast technology. And more particularly, to a display device.

Background

The LE Audio protocol is a new generation of bluetooth Audio technology standard that defines that one Audio broadcasting device can simultaneously transmit different broadcast Audio to an unlimited number of Audio receiving devices. For example, a television may broadcast audio tracks in an audio file synchronously to a plurality of bluetooth headsets.

At present, the audio file may include a plurality of audio tracks, however, the audio broadcasting device may be limited by a chip and the like, only support single audio track broadcasting, and cannot synchronously broadcast the plurality of audio tracks in the audio file, so that the broadcasting efficiency is low.

Disclosure of Invention

Exemplary embodiments of the present application provide a display apparatus that can improve broadcasting efficiency.

In a first aspect, the present application provides a display apparatus, the display apparatus comprising a processor, the display apparatus further comprising a built-in bluetooth device, and/or the display apparatus circumscribing at least one bluetooth device, the processor being configured to:

acquiring a plurality of audio tracks to be broadcasted in audio;

if the Bluetooth device does not support multi-track synchronous broadcasting, constructing a virtual track;

Converting at least part of the audio tracks in the plurality of audio tracks to be broadcast into mono audio of the virtual audio track;

and broadcasting the audio of each channel of the virtual audio track by using the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS.

In one embodiment, the processor is configured to:

acquiring a construction strategy of the virtual audio track;

determining the number of channels of the virtual audio track according to the construction strategy;

and constructing the virtual audio track according to the number of the channels.

In one embodiment, the processor is configured to:

acquiring the size relation between the number of the audio tracks to be broadcasted and the number of the channels included in the virtual audio tracks;

and converting at least part of the audio tracks in the plurality of audio tracks to be broadcasted into mono audio of the virtual audio track according to the audio track-to-channel conversion mode corresponding to the size relation.

In one embodiment, the processor is configured to:

if the size relation characterizes that the number of the tracks to be broadcasted is smaller than the number of the channels, converting a first target track in the tracks to be broadcasted into at least two mono audios of the virtual track, and converting the rest tracks into mono audios of the virtual track;

And if the size relation characterizes that the number of the tracks to be broadcasted is larger than the number of the channels, discarding a second target track in the tracks to be broadcasted, and converting the rest tracks into mono audio of the virtual track.

In one embodiment, the processor is configured to:

outputting prompt information, wherein the prompt information is used for prompting a user to determine the first target sound track and/or the second target sound track from the sound tracks to be broadcasted;

and determining the first target sound track and/or the second target sound track according to the selection operation of the user.

In one embodiment, the processor is configured to:

it is determined whether the bluetooth device supports multi-track synchronous broadcasting.

In one embodiment, the processor is configured to:

determining whether the Bluetooth device supports broadcasting audio according to the identification of the Bluetooth device;

if the support of broadcast audio is determined, acquiring protocol stack information of the Bluetooth device;

and determining whether the Bluetooth device supports multi-track synchronous broadcasting according to the protocol stack information of the Bluetooth device.

In one embodiment, the protocol stack information includes a broadcast isochronous group BIG group number, and the processor is configured to:

And if the BIG group number is a default value, determining that the Bluetooth device does not support multi-track synchronous broadcasting.

In one embodiment, if the bluetooth device is a bluetooth module built in the display device, the processor is configured to:

acquiring a firmware version number of the Bluetooth device;

if the firmware version number is larger than a preset version number, module model information of the Bluetooth device is obtained;

and when the module model of the Bluetooth device is determined to be the module in the preset list according to the module model information, determining that the Bluetooth device supports broadcasting audio.

In one embodiment, if the bluetooth device is a bluetooth device external to the display apparatus, the processor is configured to:

if the connection mode of the Bluetooth device and the display equipment is common connection, determining whether the Bluetooth device supports broadcast audio according to a UUID of a universal unique identification code of the Bluetooth device;

if the connection mode of the Bluetooth device and the display equipment is low-power consumption LE connection, determining whether the Bluetooth device supports broadcasting audio according to UUID of the Bluetooth device or the characteristic value.

In a second aspect, the present application provides a display device, applicable to the display apparatus, where the display apparatus includes a built-in bluetooth device, and/or the display apparatus is externally connected to at least one bluetooth device, and the device includes:

And the acquisition module is used for acquiring a plurality of audio tracks to be broadcasted in the audio.

And the construction module is used for constructing a virtual audio track if the Bluetooth device does not support multi-audio-track synchronous broadcasting.

And the conversion module is used for converting at least part of the audio tracks in the plurality of audio tracks to be broadcasted into mono audio of the virtual audio track.

And the broadcasting module is used for broadcasting the audio of each channel of the virtual audio track by utilizing the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS.

In a third aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions for performing the method according to the first aspect when executed by a processor.

In a fourth aspect, the application provides a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect.

The display device provided by the application comprises a processor, wherein the display device further comprises a built-in Bluetooth device and/or is externally connected with at least one Bluetooth device, and the processor is configured to: acquiring a plurality of audio tracks to be broadcasted in audio; if the Bluetooth device does not support multi-track synchronous broadcasting, constructing a virtual track; converting at least part of the audio tracks in the plurality of audio tracks to be broadcast into mono audio of the virtual audio track; and broadcasting the audio of each channel of the virtual audio track by using the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS. When the Bluetooth device of the display equipment does not support multi-track synchronous broadcasting, the multi-track synchronous broadcasting is realized by constructing a virtual track, the broadcasting efficiency is improved, and the use experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation of the related art, the drawings that are required for the embodiments or the related art description will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic diagram of a broadcast scene provided by the present application;

fig. 2 is a schematic diagram of a hardware configuration of a display device according to the present application;

fig. 3 is a schematic diagram of a hardware configuration of a control device according to the present application;

fig. 4 is a schematic diagram of hardware configuration of a bluetooth speaker according to the present application;

fig. 5a is a schematic diagram of a display device according to the present application;

FIG. 5b is a schematic diagram of another display device according to the present application;

FIG. 5c is a schematic diagram of another display device according to the present application;

fig. 6 is a schematic flow chart of an audio broadcasting method according to the present application;

FIG. 7 is a schematic diagram of an interface for acquiring a plurality of audio tracks to be broadcasted according to the present application;

FIG. 8a is a schematic diagram of an audio service layer according to the present application;

FIG. 8b is a schematic diagram of a broadcast audio provided by the present application;

FIG. 9 is a flowchart of a virtual track conversion method according to the present application;

FIG. 10 is a schematic diagram of an interface for canceling audio tracks according to the present application;

fig. 11 is a flowchart illustrating a method for determining whether a bluetooth device supports multi-track synchronous broadcasting according to the present application;

fig. 12 is a schematic structural diagram of an audio broadcasting device according to the present application.

Detailed Description

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to denote examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The LE Audio protocol is a new generation of bluetooth Audio technology standard that defines that one Audio broadcasting device can simultaneously transmit different broadcast Audio to an unlimited number of Audio receiving devices. For example, a television supporting the LE Audio protocol may broadcast Audio tracks in an Audio file synchronously to multiple bluetooth headsets via a built-in bluetooth device and/or an external bluetooth device.

At present, the Audio file may include a plurality of Audio tracks, and the Audio broadcasting device supporting the LE Audio protocol may theoretically broadcast the plurality of Audio tracks in the Audio file to a plurality of Audio receiving devices simultaneously, that is, the Audio broadcasting device supports multi-track synchronous broadcasting, however, the Audio broadcasting device may be limited by a chip and other reasons, only supports single-track broadcasting, cannot synchronously broadcast the multi-track, and has low broadcasting efficiency.

In view of the above problems in the prior art, the present application provides a display device, where when the display device performs multi-track synchronous broadcasting through a built-in bluetooth device and/or an external bluetooth device, if the built-in bluetooth device and/or the external bluetooth device only support single-track broadcasting, the display device can construct a virtual track, convert the multi-track into audio of different channels of the virtual track, and use the virtual track to achieve multi-track synchronous broadcasting, so that the broadcasting efficiency is higher.

It should be understood that, the bluetooth device built in the display device provided by the embodiment of the application may be a bluetooth module built in the display device, the bluetooth device externally connected to the display device may be a bluetooth speaker externally connected to the display device, and when the display device performs audio broadcasting, the display device and the built-in bluetooth device and/or the externally connected bluetooth device together form the above-described audio broadcasting device. The external Bluetooth device can be one or more.

That is, the display device may have a bluetooth module supporting the LE Audio protocol built therein, so that the display device converts the multi-track into Audio of different channels of the virtual track, and broadcasting of the multi-track is achieved through the bluetooth module. Or, the display device is externally connected with at least one Bluetooth sound box supporting LE Audio protocol, so that the display device converts the multi-Audio track into Audio of different channels of the virtual Audio track, and the broadcasting of the multi-Audio track is realized through the Bluetooth sound box. Or, the display device is internally provided with a Bluetooth module supporting the LE Audio protocol and is externally connected with at least one Bluetooth sound box supporting the LE Audio protocol, so that the display device converts multiple sound tracks into the Audio of different sound channels of the virtual sound track, and the broadcasting of the multiple sound tracks is realized through the Bluetooth module and the at least one Bluetooth sound box.

It should be understood that when the display device implements multi-track broadcasting only through at least one bluetooth speaker supporting LE Audio protocol, which is externally connected, the display device itself may have a bluetooth module or the display device itself may not have a bluetooth module. When the Bluetooth module is provided, the Bluetooth module can be a Bluetooth module supporting the LE Audio protocol or a Bluetooth module not supporting the LE Audio protocol.

The display device provided by the embodiment of the application can have various implementation forms, for example, a television, an intelligent television, a laser projection device, a display (monitor), an electronic whiteboard (electronic bulletin board), an electronic desktop (electronic table) and the like.

The display device may be configured to convert the multi-track into audio of different channels of the virtual track based on a user operation, and implement multi-track synchronous broadcasting through a built-in bluetooth device or at least one external bluetooth device.

Fig. 1 is a schematic diagram of a possible broadcasting scenario according to an embodiment of the present application.

Taking a bluetooth module supporting the LE Audio protocol built in the display device as an example, as shown in fig. 1, a user may control the display device 200 through the smart device 300 or the control device 100, so that the display device 200 performs multi-track synchronous broadcasting according to a user instruction, and thus the Audio receiving device 500 within the broadcast signal coverage range of the display device 200 may select any track broadcast by the display device 200 to listen.

In some embodiments, the control device 100 may be a remote control, and the communication between the remote control and the display device may include infrared protocol communication or bluetooth protocol communication, and other short-range communication methods, and the display device 200 may be controlled by a wireless or wired method. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc.

In some embodiments, the display device 200 may also be controlled using a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.). For example, the display device 200 is controlled using an application running on a smart device. In some embodiments, the display device 200 may also be controlled in ways other than the control device 100 and the smart device 300, e.g., the display device may receive control of a user by touch or gesture, etc. For another example, the voice command control of the user may be directly received through a module for acquiring a voice command configured inside the display apparatus 200 apparatus, or may be received through a voice control apparatus provided outside the display apparatus 200 apparatus.

In the following embodiments, descriptions of control of the display device are each illustrated by taking a remote controller as an example. It should be understood that, in a specific implementation, any manner described herein may be used to control the display device, and the following embodiments will not be described in detail.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be permitted to make communication connections via a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.

The following describes the above mentioned display device, control device, and possible hardware configuration of bluetooth speaker, respectively.

Fig. 2 is a schematic diagram of a possible hardware configuration of a display device according to the present application. As shown in fig. 2, in some embodiments, at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface may be included in the display apparatus 200.

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

The display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, a component for receiving an image signal from the controller output, displaying video content, image content, and a menu manipulation interface, and a user manipulation UI interface.

The display 260 may be a liquid crystal display, an OLED display, a projection device, or a projection screen.

The communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver. The display device 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220. For example, the display apparatus 200 may acquire a user instruction transmitted from the control apparatus 100 through the communicator 220, and implement the audio broadcasting method provided by the present application according to the user instruction.

When the display device 200 implements broadcasting of Audio through its own bluetooth module, the bluetooth module may be a bluetooth module supporting the LE Audio protocol. When the display device 200 implements Audio broadcasting through an external bluetooth speaker, the bluetooth module may be a bluetooth module supporting the LE Audio protocol or a bluetooth module not supporting the LE Audio protocol.

A user interface operable to receive control signals for controlling the apparatus 100, such as an infrared remote control or the like.

The detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for capturing the intensity of ambient light; alternatively, the detector 230 includes an image collector such as a camera, which may be used to collect external environmental scenes, user attributes, or user interaction gestures, or alternatively, the detector 230 includes a sound collector such as a microphone, or the like, which is used to receive external sounds.

The external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.

The modem 210 receives broadcast television signals through a wired or wireless reception manner, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.

The controller 250 controls the operation of the display device and responds to the user's operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

For example, in implementing the audio broadcasting method provided by the embodiment of the present application, the operations performed by the display apparatus 200 may be implemented by the controller 250.

In some embodiments, the controller 250 is configured to: and acquiring a plurality of audio tracks to be broadcasted in the audio by utilizing an own audio processor.

In some embodiments, the controller 250 is configured to: constructing a virtual audio track by using an audio processor of the virtual audio track; at least part of the plurality of audio tracks to be broadcast is converted into mono audio of the virtual audio track.

In some embodiments, the controller 250 is configured to: at least the bluetooth device is controlled by the communicator 220 to synchronously broadcast audio of multiple channels of the virtual audio track.

In some embodiments, the controller 250 is configured to: the Wifi module or the wired ethernet module in the control communicator 220 obtains the construction strategy of the virtual audio track from the outside. And constructing a virtual track based on the construction strategy by using an own audio processor.

In some embodiments, the controller 250 is configured to: the Wifi module or the wired ethernet module in the control communicator 220 obtains the identifier of at least one external bluetooth device, and determines whether the bluetooth device supports broadcasting audio based on the identifier by using its own central processing unit.

In some embodiments, the controller 250 is configured to: the Wifi module or the wired ethernet module in the control communicator 220 obtains protocol stack information of at least one external bluetooth device, and determines whether the bluetooth device supports multi-track synchronous broadcasting based on the protocol stack information by using a central processing unit of the control communicator.

In some embodiments, the controller 250 is configured to: outputting prompt information through a control user interface, wherein the prompt information is used for prompting a user to determine the first target sound track and/or the second target sound track from the sound tracks to be broadcasted; and determining the first target sound track and/or the second target sound track according to the selection operation of the user.

In some embodiments the controller includes at least one of a central processing unit (Central Processing Unit, CPU), video processor, audio processor, graphics processor (Graphics Processing Unit, GPU), RAM Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces for input/output, a communication Bus (Bus), and the like.

The user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through the sensor to receive the user input command.

A "user interface" is a media interface for interaction and exchange of information between an application or operating system and a user, which enables conversion between an internal form of information and a user-acceptable form. A commonly used presentation form of the user interface is a graphical user interface (Graphic User Interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

Possible hardware configurations of the control device are described below.

Fig. 3 is a schematic diagram of a possible hardware configuration of a control device according to an embodiment of the present application, and as shown in fig. 3, the control device 100 includes a controller 110, a communication interface 120, a user input/output interface 130, a memory 140, and a power supply 150.

In some embodiments, the control device 100 may receive a user's input operation instruction through the user input/output interface 130 and transmit the operation instruction to the display device 200 through and convert the operation instruction into an instruction recognizable and responsive to the display device 200 to implement the audio broadcasting method provided by the present application. That is, the control device 100 is a bridge for interaction between the user and the display device 200.

Possible hardware configurations of the bluetooth speaker are described below.

Fig. 4 is a schematic diagram of a possible hardware configuration of a bluetooth speaker according to an embodiment of the present application, as shown in fig. 4, in some embodiments, a bluetooth speaker 600 includes: processor 610, communicator 620, user input/output interface 630, memory 640, power supply 650.

The communicator 620 is configured to communicate with the outside and includes at least one of a WIFI chip, a bluetooth module, an antenna, or an alternative module. The user input/output interface 630 includes at least one of a speaker, microphone, touch pad, indicator lights, keys, or an alternative module. In some embodiments, the bluetooth speaker 600 may receive the audio to be broadcast sent by the display device 200 through the communicator 620, so as to implement the audio broadcasting method provided by the present application.

The above is an introduction to the hardware configuration of a device to which the present application may relate.

As described above, the display apparatus may convert the multi-track into audio of different channels of the virtual track based on the user's operation, and broadcast the multi-track through the built-in bluetooth device, and/or by externally connecting at least one bluetooth device. Thus, the display device and the bluetooth apparatus may include the following structures:

architecture 1: as shown in fig. 5a, the display device has a bluetooth device (bluetooth module) built therein, under which the display device can convert a multi-track into audio of different channels of a virtual track based on a user's operation, and broadcasting of the multi-track is achieved through the built-in bluetooth module thereof.

Architecture 2: as shown in fig. 5b, the display device is externally connected with at least one bluetooth device (bluetooth speaker), under the architecture, the display device can convert multiple audio tracks into audio frequencies of different channels of the virtual audio tracks based on the operation of a user, and the broadcasting of the multiple audio tracks is realized through the built-in bluetooth module. Fig. 5b is a schematic diagram of 1 bluetooth speaker.

The display device does not have a Bluetooth module, or has a Bluetooth module, but does not support the LE Audio protocol. In addition, the signal coverage of different bluetooth speaker is different, or at least part of the signal coverage is different.

Architecture 3: as shown in fig. 5c, the display device is built with a bluetooth device (bluetooth module), and the display device is externally connected with at least one bluetooth device (bluetooth speaker). Under the framework, the display equipment can convert the multi-track into the audio of different channels of the virtual track based on the operation of a user, and the multi-track broadcasting is realized through the built-in Bluetooth module and at least one externally connected Bluetooth sound box. Fig. 5c is a schematic diagram of 1 bluetooth speaker.

The technical scheme of the present application will be described in detail with reference to specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

The embodiment of the application provides an audio broadcasting method which is applied to display equipment.

Fig. 6 is a flow chart of an audio broadcasting method according to an embodiment of the present application, as shown in fig. 6, including the following steps:

s601, acquiring a plurality of audio tracks to be broadcasted in the audio.

In the embodiment of the present application, the audio track may be used to indicate audio information included in audio to be played, where different audio tracks correspond to different audio information, for example, one audio track corresponds to audio of one language, or one audio track corresponds to audio of a combination of one language and one channel. That is, the number of tracks of the audio may be determined according to the kind of audio information included in the audio.

In some embodiments, the plurality of audio tracks to be broadcast may be determined by the display device according to a user's selection instruction.

For example, as shown in fig. 7, when the display device acquires audio, the audio may be parsed to obtain all audio tracks of the audio, and displayed in an audio track menu 701 of the display device.

If the display device receives a trigger instruction from the user to "set broadcast" control in the audio track menu 701 through the control device, the display device displays the audio track selection interface 702. All the audio tracks of the audio are displayed in the audio track selection interface 702, each audio track is provided with a check box in front, and the display device can respond to a check instruction of a user on one or more check boxes through the control device to mark the audio track corresponding to the check box as a check state. The track in the selected state is the track to be broadcast selected by the user.

If the display device receives a trigger instruction of the user to the "confirm" control in the track selection interface 702 through the control device, the display device takes the tracks selected by the user as the tracks to be broadcasted.

In some embodiments, the plurality of tracks to be broadcast may also be determined for the display device from all tracks of the audio according to a preset policy. For example, the preset policy may be to take, as the plurality of tracks to be broadcasted, a track corresponding to a hot spot language in a region where the display device is located. The embodiment of the application does not limit the mode of acquiring a plurality of audio tracks to be broadcasted.

S602, if the Bluetooth device does not support multi-track synchronous broadcasting, a virtual track is constructed.

In the embodiment of the application, when the display device determines a plurality of audio tracks to be broadcast, whether a Bluetooth device for broadcasting the audio tracks to be broadcast supports multi-audio-track synchronous broadcasting or not needs to be determined, if so, the audio tracks to be broadcast can be broadcast by using the Bluetooth device, and if not, the display device can construct a virtual audio track and broadcast the audio tracks to be broadcast in a virtual audio track broadcasting mode.

For example, if the bluetooth device is a bluetooth module built in the display device, the display device may determine whether to support multi-track synchronous broadcasting according to the identification information of the bluetooth module. For example, when the firmware version number of the bluetooth module is less than 5.3, it may be determined that the bluetooth module does not support multi-track synchronous broadcasting.

If the bluetooth device is a bluetooth speaker externally connected with the display device, the display device can acquire a universal unique identification code (Universally Unique Identifier, UUID) of the bluetooth speaker through interaction with the bluetooth speaker, and if the UUID is not the UUID in a preset white list, it can be determined that the bluetooth speaker does not support multi-track broadcasting.

In some embodiments, the display device may further determine, according to the protocol stack information of the bluetooth device, whether the bluetooth device supports multi-track synchronous broadcast, for example, when the information of the broadcast isochronous group included in the protocol stack information is preset information, it may be determined that the bluetooth device does not support multi-track synchronous broadcast. Alternatively, the display device may also interact with the user, and determine, according to information input by the user, whether the bluetooth device supports multi-track synchronous broadcasting. The embodiment of the application does not limit the mode of determining whether the Bluetooth device supports multi-track synchronous broadcasting.

The display device constructs a virtual track when determining that the Bluetooth device does not support multi-track synchronous broadcasting, wherein the virtual track comprises a plurality of channels.

The display device may illustratively construct the virtual audio track via a multimedia processing module. The number of channels of the virtual audio track may be determined based on the number of the plurality of audio tracks to be broadcast. For example, the number of channels of the virtual audio track may be greater than or equal to the number of the plurality of audio tracks to be broadcast.

In some embodiments, the number of channels of the virtual audio track may be determined by a default number, or the number of channels of the virtual audio track may be determined according to information input by a user, which is not limited in the manner of determining the number of channels of the virtual audio track.

S603, converting at least part of the audio tracks in the plurality of audio tracks to be broadcast into mono audio of the virtual audio track.

In the embodiment of the application, the display device can decode a plurality of audio tracks to be broadcasted to obtain a plurality of mono audio, and at least part of mono audio is combined into the audio channels of the virtual audio track to obtain the virtual audio track comprising audio information. Wherein one track to be broadcast may correspond to one mono audio.

For example, if the number of channels of the virtual track is greater than or equal to the number of audio of the plurality of mono channels, the display device may combine the audio of each mono channel into one channel of the virtual track, resulting in a virtual track including audio information.

If the number of channels of the virtual audio track is smaller than the number of audio of the plurality of mono channels, the display device may discard a portion of the audio of the mono channels, and combine the remaining audio of the mono channels into one channel of the virtual audio track to obtain the virtual audio track including the audio information. When part of the mono audio is discarded, the audio can be discarded according to a preset discarding strategy, or can be interacted with a user, and the mono audio required to be discarded is determined according to the information input by the user.

And S604, broadcasting the audio of each channel of the virtual audio track by using the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS.

In the embodiment of the application, when the display equipment determines the virtual audio track comprising the audio information, the virtual audio track can be sent to the Bluetooth device, so that the Bluetooth device synchronously broadcasts a plurality of pieces of mono audio included in the virtual audio track.

Taking a bluetooth module with a bluetooth device as a display device, the display device may broadcast the plurality of mono Audio frequencies included in the virtual Audio track synchronously by using the bluetooth module.

Fig. 8a is a schematic structural diagram of an Audio Server service layer according to an embodiment of the present application, where, as shown in fig. 8a, the method includes: audio policy enforcement programs Audio player and Audio broadcasting programs (Audio hardware abstraction layer, audio HAL). The Audio Flinger is used for changing an Audio channel of the display device, for example, changing the Audio channel of the display device from a local speaker channel to a bluetooth channel. The Audio HAL is used for sending the Audio track information to be broadcasted to an Audio channel of the Bluetooth module.

After the Audio Flinger in the Audio Server service layer acquires the virtual Audio track through the Audio service frame, the Audio channel of the display device is set to be a Bluetooth channel, the virtual Audio track is sent to the Audio HAL of the Audio broadcasting program, and the Audio HAL can send the virtual Audio track to the Audio HAL of the Bluetooth module through the Audio service frame after receiving the virtual Audio track.

After receiving the virtual Audio track, the Audio HAL of the bluetooth module may forward the virtual Audio track to a protocol stack of the bluetooth module, where the protocol stack combines a plurality of mono Audio of the virtual Audio track into a broadcast isochronous group (broadcast isochronous group, BIG) when receiving the virtual Audio track, and encodes each mono Audio by a low complexity communication codec (Low Complexity Communication Codec, LC 3) and sends the encoded mono Audio to a hardware control portion of the bluetooth device. Wherein, each path of BIG comprises a plurality of SUB-BIGs, and each SUB-BIG corresponds to a piece of mono audio.

The hardware control part of the Bluetooth device synchronously broadcasts each SUB-BIG corresponding to a single-channel Audio according to the LE Audio protocol. That is, one mono audio corresponding to each SUB-BIG is broadcast in one broadcast isochronous stream (broadcast isochronous stream, BIS).

The following is a brief description of broadcasting mono Audio according to the LE Audio protocol:

for example, when broadcasting according to the LE Audio protocol, the bluetooth device may send the broadcast Audio stream in units of BIG events (BIG event), as shown in fig. 8b, and after each time the Audio stream in BIG event x is sent, it is switched to send the Audio stream in BIG event x+1 sequentially. The period of time occupied by each BIG event may be referred to as an isochronous interval iso_interval, where a BIG Anchor Point exists between two consecutive BIG events, for determining the demarcation Point between two BIG events.

Wherein one BIG event may comprise a plurality of SUB-BIG events. Each SUB-BIG event may comprise a BIS event, each for carrying a mono audio stream.

It can be appreciated that, the implementation manner of broadcasting the plurality of mono audio frequencies included in the virtual audio track by the display device using at least one external bluetooth speaker is similar to that of the bluetooth module, and will not be repeated herein.

The audio broadcasting method provided by the embodiment of the application obtains a plurality of audio tracks to be broadcast in audio; if the Bluetooth device does not support multi-track synchronous broadcasting, constructing a virtual track; converting at least part of the audio tracks in the plurality of audio tracks to be broadcast into mono audio of the virtual audio track; and broadcasting the audio of each channel of the virtual audio track by using the Bluetooth device, wherein the audio of each channel corresponds to one broadcasting isochronous stream BIS. When the Bluetooth device of the display equipment does not support multi-track synchronous broadcasting, the multi-track synchronous broadcasting is realized by constructing a virtual track, the broadcasting efficiency is improved, and the use experience of a user is improved.

Alternatively, on the basis of the foregoing embodiment, the audio broadcasting method provided by the embodiment of the present application may construct the virtual audio track in the following manner.

Illustratively, a construction strategy of the virtual audio track is obtained; determining the number of channels of the virtual audio track according to the construction strategy; and constructing the virtual audio track according to the number of the channels.

Wherein the construction strategy of the virtual audio track may be used to indicate the number of channels comprised in the virtual audio track.

In one possible implementation, the construction strategy may be to determine the number of channels included in a virtual track from the number of tracks included in the audio file. For example, the audio file includes 5 tracks, and the virtual track includes 5 channels.

In one possible implementation, the construction strategy may further determine the number of channels included in the virtual audio track based on a default value.

In one possible implementation, the construction strategy may further determine the number of channels included in a virtual audio track for a maximum support capability based on the display device. For example, if the maximum support capability of the display device is to allow 10 channels to be included in the virtual audio track, the construction policy indicates that the number of channels included in the virtual audio track is 10.

In a possible implementation manner, the construction policy may further determine the number of channels included in the virtual audio track according to indication information of a user.

When determining the number of channels included in the virtual audio track according to the indication information of the user, the display device may display corresponding prompt information when determining that the bluetooth device does not support multi-audio track synchronous broadcasting, so that the user inputs the desired number of channels, and the number of channels included in the virtual audio track is determined according to the indication information of the user.

Optionally, when the construction policy determines the number of channels included in the virtual audio track according to the number of audio tracks included in the audio file, determines the number of channels included in the virtual audio track based on a default value, and determines the number of channels included in the virtual audio track according to the indication information of the user, if the number of channels included in the virtual audio track indicated by the construction policy is greater than the number of channels corresponding to the maximum supporting capability of the display device, the display device may adjust the number of virtual audio tracks to the number of channels corresponding to the maximum supporting capability, and prompt the user through corresponding prompt information.

When the display device determines the construction strategy of the virtual audio track, the construction strategy may be parsed to obtain the number of channels corresponding to the construction strategy, and the virtual audio track is constructed based on the number of channels, which is similar to the above embodiment in the specific implementation manner and will not be repeated here.

Optionally, on the basis of the foregoing embodiment, the audio broadcasting method provided by the embodiment of the present application may convert at least part of audio tracks in a plurality of audio tracks to be broadcast into mono audio of the virtual audio track in the following manner.

Fig. 9 is a schematic flow chart of mono audio of converting a plurality of audio tracks to be broadcasted into a virtual audio track according to an embodiment of the present application, as shown in fig. 9, including:

and S901, acquiring the size relation between the number of the audio tracks to be broadcasted and the number of the channels included in the virtual audio tracks.

S902, converting at least part of the audio tracks in the plurality of audio tracks to be broadcasted into mono audio of the virtual audio track according to the audio track-to-channel conversion mode corresponding to the size relation.

In the embodiment of the present application, the magnitude relation between the number of different audio tracks to be broadcast and the number of channels included in the virtual audio track may correspond to different conversion modes.

In one possible implementation, if the size relationship characterizes that the number of tracks to be broadcast is equal to the number of channels, the tracks to be broadcast are converted into mono audio of the virtual track. That is, the audio tracks to be broadcast are in one-to-one correspondence with the mono audio of the virtual audio track.

In one possible implementation, if the size relationship characterizes that the number of tracks to be broadcast is smaller than the number of channels, the tracks to be broadcast are converted into mono audio of a portion of the virtual tracks. That is, the audio track to be broadcasted and part of the mono audio of the virtual audio track are in one-to-one correspondence, and the rest channels of the virtual audio track are in an idle state.

In one possible implementation, if the size relationship characterizes that the number of tracks to be broadcast is greater than the number of channels, then a portion of the tracks may be converted to mono audio of the virtual track.

In some embodiments, if the size relation indicates that the number of tracks to be broadcasted is smaller than the number of channels, then when the audio of each channel of the virtual track is broadcasted, a part of channels are in an idle state, so as to further improve the broadcasting efficiency, corresponding mono audio can be combined in the channels in the idle state, and the number of mono audio of the broadcasted virtual track is improved, thereby improving the broadcasting efficiency.

For example, if the size relationship characterizes that the number of tracks to be broadcast is smaller than the number of channels, a first target track in the tracks to be broadcast is converted into at least two mono audios of the virtual track, and the remaining tracks are converted into mono audios of the virtual track.

Wherein the first target track may be determined based on a preset strategy. For example, the track corresponding to the hotspot language in the region where the display device is located, or based on interactions with the user, determined from relevant instructions entered by the user.

When the number of the tracks to be broadcasted is determined to be smaller than the number of the channels according to the size relation, the display device can determine a first target track according to a preset strategy, convert the first target track into at least two pieces of mono audio, then combine the at least two pieces of mono audio into different channels of the virtual track, convert the rest of the at least two pieces of mono audio into one piece of mono audio, and then combine the at least two pieces of mono audio into different channels of the virtual track. Wherein the first target track may be one or more, and the number of mono audio converted by the first target track may be determined according to the free number of virtual tracks.

In some embodiments, the conversion of the first target audio track into at least two mono audio tracks may be performed according to the type of audio in the first target audio track.

In one possible implementation, if the audio in the first target track is mono audio, the display device may mix the audio to obtain a preset number of mono audio, for example, mix the mono audio and then convert the mono audio into 4 different mono audio.

In one possible implementation, if the audio in the first target track is multi-channel audio, the display device may decode the first target track and then convert the decoded first target track into a predetermined number of mono audio. For example, if the audio in the first target track is stereo, the first target track may be converted to left channel audio and right channel audio.

It will be appreciated that when converting the first target track into at least two mono audio, the type of the at least two mono audio may be determined according to a preset strategy, for example, a priority left channel, or according to a related instruction input by the user.

In some embodiments, if the size relationship indicates that the number of tracks to be broadcasted is greater than the number of channels, the display device is not capable of synchronously broadcasting all the tracks of the audio file, and the tracks to be broadcasted need to be screened, so that conflicts during track conversion are avoided, and therefore broadcasting efficiency is improved.

For example, if the size relationship characterizes that the number of tracks to be broadcast is greater than the number of channels, a second target track in the tracks to be broadcast is discarded, and the remaining tracks are converted into mono audio of the virtual track.

Wherein the second target track may be determined based on a preset strategy. For example, tracks corresponding to non-hotspot languages in the region where the display device is located, or based on interactions with the user, determined from relevant instructions entered by the user.

When the display device determines that the number of the tracks to be broadcasted is greater than the number of the channels according to the size relation, a second target track can be determined according to a preset strategy, discarding is performed on the second target track, and after the rest tracks are converted into a mono audio, the mono audio is merged into different channels of the virtual track. Wherein the second target track may be one or more.

In some embodiments, the determination of the first target track and/or the second target track by the display device according to the relevant instructions entered by the user may be performed as follows:

for example, outputting prompt information, where the prompt information is used to prompt a user to determine the first target track and/or the second target track from the tracks to be broadcast; and determining the first target sound track and/or the second target sound track according to the selection operation of the user.

And when the display equipment determines that the number of the audio tracks to be broadcasted is larger than the number of the sound channels according to the size relation, or the number of the audio tracks to be broadcasted is smaller than the number of the sound channels, corresponding prompt information can be displayed in the relevant page so as to prompt a user to select.

For example, taking the example that the number of tracks to be broadcast is greater than the number of channels, as shown in fig. 10, the display device may display a track cancellation interface 1001, where all tracks of the audio are displayed in the track cancellation interface 1001, and a check box is disposed in front of each track. The display device may mark the audio track corresponding to the check box as a checked state in response to a user's check instruction for one or more check boxes through the control device. The track in the selected state is the second target track selected by the user.

If the display device receives a trigger instruction of the user to the "confirm" control in the track cancellation interface 1001 through the control device, the display device takes the tracks selected by the user as the second target track.

According to the audio broadcasting method provided by the embodiment of the application, the relation between the number of the audio tracks to be broadcasted and the number of the channels included in the virtual audio tracks is obtained. And converting at least part of the audio tracks in the plurality of audio tracks to be broadcasted into mono audio of the virtual audio track according to the audio track-to-channel conversion mode corresponding to the size relation. By converting at least part of the audio track into mono audio of the virtual audio track, the efficiency of audio broadcasting can be improved.

The process of converting the audio track to be broadcast into the mono audio of the virtual audio track is described above when the bluetooth device of the display apparatus does not support multi-audio track synchronous broadcasting, and how to determine whether the bluetooth device supports multi-audio track synchronous broadcasting will be described below.

Fig. 11 is a schematic diagram of a process for determining whether a bluetooth device supports multi-track synchronous broadcasting according to an embodiment of the present application, as shown in fig. 11, including the following steps:

s1101, determining whether the Bluetooth device supports broadcasting audio according to the identification of the Bluetooth device.

In the embodiment of the application, the Bluetooth device of the display device can be a built-in Bluetooth module of the display device and/or at least one externally connected Bluetooth sound box of the display device.

In one possible implementation manner, if the bluetooth device is a bluetooth module built in a display device, determining whether the bluetooth device supports broadcasting audio may be performed according to the following manner:

illustratively, a firmware version number of the bluetooth device is obtained; if the firmware version number is larger than a preset version number, module model information of the Bluetooth device is obtained; and when the module model of the Bluetooth device is determined to be the module in the preset list according to the module model information, determining that the Bluetooth device supports broadcasting audio.

The firmware version number may refer to a serial number issued by a manufacturer of the bluetooth device for characterizing a firmware level of the bluetooth device, and is typically expressed in a combination of numerals and letters. The module of the Bluetooth device can be a chip basic circuit set integrating the Bluetooth function and used for wireless network communication, and the corresponding module model information can be used for indicating the category of the Bluetooth device.

Illustratively, the display apparatus may obtain the firmware version number of the bluetooth device by obtaining a Vendor ID (VID) and a Product ID (PID) of a Universal Serial BUS (USB) of the bluetooth device. Wherein the VID and PID may be stored in the master of the bluetooth device.

If the firmware version number obtained by the display device is greater than the preset version number, it may be confirmed that the bluetooth device may support broadcast audio, for example, if the firmware version number is greater than 5.3, the bluetooth device may support broadcast audio. Whether the Bluetooth device supports broadcasting audio can be further confirmed according to the module model of the Bluetooth device.

If the display equipment confirms that the module is a module in a preset list according to the acquired module model of the Bluetooth device, the Bluetooth device can be confirmed to support broadcast tracks.

In one possible implementation manner, if the bluetooth device is at least one bluetooth speaker external to the device, determining whether the bluetooth device supports broadcasting audio may be performed according to the following manner:

the Bluetooth device is at least one Bluetooth sound box externally connected with the display device, and whether the Bluetooth device supports broadcast audio can be confirmed to be different according to the different connection modes of the Bluetooth sound box and the display device. The connection mode of the Bluetooth sound box and the display equipment comprises common connection and Low Energy (LE) connection.

A common connection may also be referred to as a basic rate/enhanced data connection, which generally refers to a connection with a connection protocol below the bluetooth 4.0 protocol, and an LE connection may be a connection with a connection protocol above the bluetooth 4.0 protocol.

For example, if the connection mode of the bluetooth device and the display device is a normal connection, it is determined whether the bluetooth device supports broadcasting audio according to a UUID of a universal unique identification code of the bluetooth device.

After the display equipment and the Bluetooth device are connected in a pairing mode, the UUID of the Bluetooth device can be obtained through interaction with the Bluetooth sound box, and whether the Bluetooth device supports broadcast audio is confirmed through the UUID.

For example, the display device may query the UUID of the bluetooth device by means of a generic attribute protocol (generic attribute profile, GATT) or by means of a service discovery protocol (The Service Discovery protocol, SDP).

If part of the fields in the UUID are preset fields, it may be confirmed that the bluetooth device supports broadcasting audio, or if the UUID is an identifier in a preset list, it may be confirmed that the bluetooth device supports broadcasting audio.

For example, if the connection mode of the bluetooth device and the display device is LE connection, it is determined whether the bluetooth device supports broadcasting audio according to the UUID of the bluetooth device or the feature value.

When the connection mode between the Bluetooth device and the display equipment is LE connection, LE connection can be established in a pairing connection mode, and connection can also be established in a GATT mode.

The display device can inquire UUID of the Bluetooth device in a GATT mode, and can determine whether the Bluetooth device supports broadcasting audio through the UUID, or when the display device inquires the UUID, the display device can read a corresponding characteristic value according to the UUID, and can determine whether the Bluetooth device supports broadcasting audio according to the characteristic value.

If a part of the fields in the UUID is a preset field, it may be determined that the bluetooth device supports broadcasting audio, or if the characteristic value is a preset value, it may be determined that the bluetooth device supports broadcasting audio.

S1102, if the broadcast audio is supported, acquiring the protocol stack information of the Bluetooth device.

In the embodiment of the application, the protocol stack is also called a protocol stack, and comprises an internet protocol and a basic communication protocol of the Bluetooth device.

In one possible implementation manner, if the bluetooth device is a bluetooth module built in the display device, the display device may directly query the protocol stack information of the bluetooth device.

In one possible implementation manner, if the bluetooth device is at least one bluetooth speaker externally connected to the display device, the display device may send a protocol stack information acquisition request to the bluetooth speaker, and acquire the protocol stack information returned by the bluetooth speaker through interaction with the bluetooth speaker.

The protocol stack information includes the BIG group number supported by the Bluetooth device.

S1103, determining whether the Bluetooth device supports multi-track synchronous broadcasting according to the protocol stack information of the Bluetooth device.

In the embodiment of the application, the display device can determine whether the Bluetooth device supports multi-track synchronous broadcasting according to the BIG group number in the protocol station information.

For example, if the BIG group number is a default value, it is determined that the bluetooth device does not support multi-track synchronous broadcasting. For example, when the BIG group number=1, it is determined that the bluetooth device does not support multi-track synchronous broadcasting.

In some embodiments, to increase the efficiency of determining whether the bluetooth device supports multi-track synchronous broadcasting, the display apparatus may also determine whether the bluetooth device supports multi-track synchronous broadcasting according to the following manner.

In one possible implementation, the display may confirm whether the bluetooth device supports multi-track synchronous broadcasting based on preset information. For example, the user stores information about whether the bluetooth device supports multi-track synchronous broadcasting in the display device in advance, and when the display device receives a broadcasting instruction, the display device can query the preset information to determine whether the bluetooth device supports multi-track synchronous broadcasting.

In a possible implementation manner, the UUID of the bluetooth device supporting multi-track synchronous broadcasting and/or the characteristic value are pre-stored in the display device, and the display device can directly determine whether the bluetooth device supports multi-track synchronous broadcasting in a comparison manner when acquiring the UUID of the bluetooth device and/or the characteristic value.

Alternatively, the display device may determine whether the bluetooth device supports multi-track synchronous broadcasting by means of protocol stack information each time broadcasting is performed. In some embodiments, to reduce the power consumption of the display device, the display device may also determine whether the bluetooth apparatus supports multi-track synchronous broadcasting according to the following manner.

In one possible implementation, the display device may periodically determine whether the bluetooth apparatus supports multi-track synchronous broadcasting. For example, when multi-track synchronous broadcasting is performed for the first time every day, whether the bluetooth device supports multi-track synchronous broadcasting is determined once by means of protocol stack information.

In one possible implementation manner, the display device may determine, when a connection manner with the bluetooth device changes, whether the bluetooth device supports multi-track synchronous broadcasting by using a protocol stack information manner. For example, the display apparatus newly adds a bluetooth device or reduces a part of the bluetooth device, and the display apparatus determines whether the bluetooth device supports multi-track synchronous broadcasting. Alternatively, when a part of the bluetooth devices is changed from LE connection to classical connection or from pairing connection to GATT connection, the display apparatus determines whether the bluetooth devices support multi-track synchronous broadcasting.

In one possible implementation, the display device may determine, at each power-on, whether the bluetooth device supports multi-track synchronous broadcasting by means of protocol stack information.

In a possible implementation manner, after determining whether the bluetooth device supports multi-track synchronous broadcasting once in a protocol stack information manner, the display device may generate a flag bit and a timestamp corresponding to each bluetooth device according to a determination result, and determine whether the bluetooth device supports multi-track synchronous broadcasting according to the flag bit and the timestamp each time multi-track synchronous broadcasting is performed. Wherein the timestamp is provided with an expiration time. When determining whether the Bluetooth device supports multi-track synchronous broadcasting, if the time stamp is expired, determining whether the Bluetooth device supports multi-track synchronous broadcasting once again in a mode of executing once through protocol stack information.

The application also provides an audio broadcasting device which can be applied to the display equipment in any embodiment.

Fig. 12 is a schematic structural diagram of an audio broadcasting device 120 according to an embodiment of the present application, as shown in fig. 12, including:

an acquisition module 1201 is configured to acquire a plurality of audio tracks to be broadcast in audio.

A construction module 1202, configured to construct a virtual audio track if the bluetooth device does not support multi-audio track synchronous broadcasting.

The conversion module 1203 is configured to convert at least part of the audio tracks to be broadcast into mono audio of the virtual audio track.

And a broadcasting module 1204, configured to broadcast audio of each channel of the virtual audio track by using the bluetooth device, where the audio of each channel corresponds to one broadcast isochronous stream BIS.

In one embodiment, the construction module 1202 is further configured to obtain a construction policy of the virtual audio track; determining the number of channels of the virtual audio track according to the construction strategy; and constructing the virtual audio track according to the number of the channels.

In one embodiment, the conversion module 1203 is further configured to obtain a size relationship between the number of audio tracks to be broadcasted and the number of channels included in the virtual audio track; and converting at least part of the audio tracks in the plurality of audio tracks to be broadcasted into mono audio of the virtual audio track according to the audio track-to-channel conversion mode corresponding to the size relation.

In one embodiment, the converting module 1203 is further configured to convert a first target track of the tracks to be broadcasted into at least two mono audio of the virtual track and convert the remaining tracks into mono audio of the virtual track if the size relation characterizes that the number of tracks to be broadcasted is smaller than the number of channels; and if the size relation characterizes that the number of the tracks to be broadcasted is larger than the number of the channels, discarding a second target track in the tracks to be broadcasted, and converting the rest tracks into mono audio of the virtual track.

In one embodiment, the audio broadcasting device 120 further includes: a determination module 1205.

A determining module 1205, configured to output a prompt, where the prompt is configured to prompt a user to determine the first target track and/or the second target track from the tracks to be broadcast; and determining the first target sound track and/or the second target sound track according to the selection operation of the user.

In one embodiment, the determining module 1205 is further configured to determine whether the bluetooth device supports broadcasting audio according to the identifier of the bluetooth device; if the support of broadcast audio is determined, acquiring protocol stack information of the Bluetooth device; and determining whether the Bluetooth device supports multi-track synchronous broadcasting according to the protocol stack information of the Bluetooth device.

In one embodiment, the determining module 1205 is further configured to determine that the bluetooth device does not support multi-track synchronous broadcast if the BIG group number is a default value.

In one embodiment, the determining module 1205 is further configured to obtain a firmware version number of the bluetooth device; if the firmware version number is larger than a preset version number, module model information of the Bluetooth device is obtained; and when the module model of the Bluetooth device is determined to be the module in the preset list according to the module model information, determining that the Bluetooth device supports broadcasting audio.

In an embodiment, the determining module 1205 is further configured to determine, if the connection manner of the bluetooth device and the display device is a normal connection, whether the bluetooth device supports broadcasting audio according to a UUID of a universal unique identification code of the bluetooth device; if the connection mode of the Bluetooth device and the display equipment is low-power consumption LE connection, determining whether the Bluetooth device supports broadcasting audio according to UUID of the Bluetooth device or the characteristic value.

The implementation principle and the technical effect of the audio broadcasting device provided by the application are similar to those of the audio broadcasting method provided by any of the foregoing embodiments, and are not repeated.

The present application also provides a computer-readable storage medium, which may include: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, etc., in which program codes may be stored, and in particular, the computer-readable storage medium stores program instructions for the methods in the above embodiments.

The present application also provides a program product comprising execution instructions stored in a readable storage medium. At least one control module of the display device may read the execution instructions from the readable storage medium, the execution instructions being executed by the at least one control module to cause the display device to implement the audio broadcasting method provided by the various embodiments described above.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, the display device comprising a processor, the display device further comprising a built-in bluetooth device, and/or the display device circumscribing at least one bluetooth device, the processor configured to:

Acquiring a plurality of audio tracks to be broadcasted in audio;

2. The display device of claim 1, wherein the processor is configured to:

acquiring a construction strategy of the virtual audio track;

3. The display device of claim 2, wherein the processor is configured to:

4. The display device of claim 3, wherein the processor is configured to:

5. The display device of claim 4, wherein the processor is configured to:

6. The display device of any one of claims 1-5, wherein the processor is further configured to:

7. The display device of claim 6, wherein the processor is configured to:

8. The display device of claim 7, wherein the protocol stack information comprises a broadcast isochronous group BIG group number, the processor configured to:

9. The display device of claim 7, wherein if the bluetooth apparatus is a bluetooth module built into the display device, the processor is configured to:

acquiring a firmware version number of the Bluetooth device;

10. The display device of claim 7, wherein if the bluetooth device is a bluetooth device external to the display device, the processor is configured to:

if the connection mode of the Bluetooth device and the display equipment is low-power consumption LE connection, determining whether the Bluetooth device supports broadcast audio according to UUID or characteristic value of the Bluetooth device.