CN117812524A - Display device, playback device, and data transmission method - Google Patents

Abstract

The disclosure relates to a display device, a playing device and a data transmission method, which are applied to the technical field of low-power consumption Bluetooth, and the method comprises the following steps: the display device acquires a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels, the display device respectively broadcasts the audio streams of different channels in the multi-channel audio stream through the channels, and the playing device receives the audio streams of corresponding channels broadcast by the display device through at least one channel in the channels. The audio streams of different channels can be played through a plurality of playing devices, and the azimuth information of the sound can be reserved to the greatest extent.

Description

Display device, playback device, and data transmission method

Technical Field

The embodiment of the application relates to a low-power consumption Bluetooth technology. And more particularly, to a display apparatus, a playback apparatus, and a data transmission method.

Background

Currently, with the advent of multi-channel audio, many applications on display devices output audio that is multi-channel. However, for classical bluetooth audio, only end-to-end unicast audio transmission is supported, i.e. the display device can only be connected with one playing device through bluetooth connection, therefore, the multichannel audio output by the display device can only be played through one playing device finally, resulting in that the multichannel audio loses space sense, the sound effect is seriously affected, and the user experience is poor.

Disclosure of Invention

In order to solve the technical problems, the application provides a display device, a playing device and a data transmission method, which can play audio streams of different channels through a plurality of playing devices, and can keep azimuth information of sound to the greatest extent.

In a first aspect, embodiments of the present application provide a display device, including: a controller configured to: acquiring a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels; the plurality of channels respectively broadcast audio streams of different channels in the multi-channel audio stream, so that the plurality of playing devices respectively receive the audio streams of the corresponding channels through at least one channel in the plurality of channels.

In a second aspect, embodiments of the present application provide a playback device, including: a controller configured to: the audio streams of the corresponding channels broadcast by the display device are received through at least one channel of the channels, the audio streams of different channels in the multi-channel audio streams are respectively broadcast by the display device through the channels, the multi-channel audio streams are acquired by the display device, and the multi-channel audio streams comprise the audio streams of the channels.

In a third aspect, the present application provides a data transmission method, applied to a display device, including: acquiring a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels; and broadcasting the audio streams of different channels in the multi-channel audio streams respectively through a plurality of channels, so that a plurality of playing devices receive the audio streams of corresponding channels respectively through at least one channel in the plurality of channels.

In a fourth aspect, the present application provides a data transmission method, applied to a playing device, where the method includes: the audio streams of the corresponding channels broadcast by the display device are received through at least one channel of the channels, the audio streams of different channels in the multi-channel audio streams are respectively broadcast by the display device through the channels, the multi-channel audio streams are acquired by the display device, and the multi-channel audio streams comprise the audio streams of the channels.

In a fifth aspect, the present application provides a computer-readable storage medium comprising: the computer-readable storage medium stores thereon a computer program which, when executed by a processor, implements the data transmission method as shown in the third and fourth aspects.

In a sixth aspect, the present application provides a computer program product comprising: the computer program product, when run on a computer, causes the computer to implement the data transmission method as shown in the third and fourth aspects.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: in the embodiment of the application, the display device acquires multi-channel audio streams, and broadcasts audio streams of different channels in the multi-channel audio streams respectively through a plurality of channels; the playback device receives an audio stream of a corresponding channel broadcast by the display device over at least one of a plurality of channels, the multi-channel audio stream comprising audio streams of a plurality of channels. Thus, different playing devices receive audio streams broadcast by the display device through the designated channel, such as a multi-channel audio stream including a left-channel audio stream, a right-channel audio stream and a center-channel audio stream, when the display device broadcasts the multi-channel audio stream, the left-channel audio stream is transmitted through the channel 1, the right-channel audio stream is transmitted through the channel 2, the center-channel audio stream is transmitted through the channel 3, the playing device 1 receives and plays the left-channel audio stream and the center-channel audio stream transmitted through the channel 1 and the channel 3, and the playing device 2 receives and plays the right-channel audio stream and the center-channel audio stream transmitted through the channel 2 and the channel 3, so that the multi-channel audio playing function can be realized by a plurality of playing devices, and the azimuth information of sound in the multi-channel audio can be reserved as much as possible under the condition that a user has a plurality of playing devices, so that the playing effect is better and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the embodiments in the related art, a brief description will be given below of the drawings required for the embodiments or the related art descriptions, and it is apparent that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings for those of ordinary skill in the art.

FIG. 1 illustrates an operational scenario between a control device and a display device according to some embodiments;

fig. 2 shows a hardware configuration block diagram of the control apparatus 100 according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments;

FIG. 4 illustrates a schematic diagram of an interaction scenario, according to some embodiments;

fig. 5 shows a broadcast schematic of a multi-channel audio stream according to some embodiments;

FIG. 6 illustrates a schematic diagram of a plurality of channel identifications displayed by a display device according to some embodiments;

FIG. 7 illustrates a schematic diagram of different types of audio identifications displayed by a display device according to some embodiments;

FIG. 8 illustrates a schematic diagram of channel identification for type 2.0 audio displayed by a display device in accordance with some embodiments;

FIG. 9 illustrates one of the flow diagrams of a data transmission method according to some embodiments;

FIG. 10 illustrates a second flow chart of a data transmission method according to some embodiments;

FIG. 11 illustrates a third flow chart diagram of a data transmission method in accordance with some embodiments;

fig. 12 illustrates a fourth flow diagram of a data transmission method according to some embodiments.

Detailed Description

For purposes of clarity and implementation of the present application, the following description will make clear and complete descriptions of exemplary implementations of the present application with reference to the accompanying drawings in which exemplary implementations of the present application are illustrated, it being apparent that the exemplary implementations described are only some, but not all, of the examples of the present application.

It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, 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.

The terms "first," second, "" third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for limiting a particular order or sequence, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises," "comprising," and "having," 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 all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The display device provided in this embodiment of the present application may have various implementation forms, and for example, may be a television, an intelligent television, a laser projection device, a display (monitor), an electronic whiteboard (electronic bulletin board), an electronic desktop (electronic table), a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, and the like.

Fig. 1 is a schematic diagram of an operation 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. As shown in fig. 1, a user may operate the display device 200 through the smart device 300 or the control apparatus 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. 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, a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application running on a smart device.

In some embodiments, the display device may receive instructions not using the smart device or control device described above, but rather receive control of the user by touch or gesture, or the like.

In some embodiments, the display device 200 may also perform control in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 device for acquiring voice commands, or the voice command control of the user may be received through a voice control device configured outside the display device 200 device.

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.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with an exemplary embodiment. As shown in fig. 2, 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 apparatus 100 may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, and function as an interaction between the user and the display device 200.

As shown in fig. 3, the display apparatus 200 includes 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 user interface 280, an external memory, and a power supply.

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 apparatus 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.

The user interface 280 may be used to receive control signals from the control device 100 (e.g., an infrared remote control, etc.). Or may be used to directly receive user input operation instructions and convert the operation instructions into instructions recognizable and responsive by the display device 200, which may be referred to as a user input interface.

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, etc. The input/output interface may be a composite type 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 a memory (internal memory or external 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.

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

The RAM is also called as a main memory and is an internal memory for directly exchanging data with the controller. It can be read and written at any time (except when refreshed) and is fast, often as a temporary data storage medium for an operating system or other program in operation. The biggest difference from ROM is the volatility of the data, i.e. the stored data will be lost upon power down. RAM is used in computer and digital systems to temporarily store programs, data, and intermediate results. ROM operates in a non-destructive read mode, and only information which cannot be written can be read. The information is fixed once written, and even if the power supply is turned off, the information is not lost, so the information is also called a fixed memory.

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 display 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.

The following description will take a playback device as an example of any playback device among a plurality of playback devices.

It should be noted that, the display device and the playing device in the present application both support the bluetooth module of LE Audio. LE Audio is bluetooth low energy Audio technology, can transmit Audio under bluetooth low energy state, can promote bluetooth headset duration and performance, also introduces low complexity bluetooth Audio coding (Low Complexity Communication Codec, LC 3) simultaneously to and multiple Audio sharing, broadcasting Audio mode etc. compare in classical bluetooth, and the delay is lower and the tone is better.

LE Audio provides the following profile: a multi-channel surround profile (Multichannel Surround Profile, MCHP) for a multi-channel surround sound application; basic audio profiles (Basic Audio Profile, BAP) define Client/Server behavior, describe basic flows and configurations required to implement unicast or broadcast behavior, BAP specifies how servers need to interact with clients and defines the message order between clients and servers, BAP defines Client, server, device discovery, connection establishment, and scanning procedures used by broadcast sources and broadcast receivers; the volume control profile (Volume Control Profile, VCP) defines the program that performs relative and absolute volume control; a coordination set identification profile (Coordinated Set Identification Profile, CSIP) defines the discovery and setting of the same group of devices as the same group of devices; a generic audio profile (Common Audio Profile, CAP) is used to handle synchronization of multiple devices, specifying the procedure to start and stop audio streams on a group of devices.

Specifically, in the present application, the application Layer (App Layer) is based on MCHP: the display device is used as the Source of the multi-channel audio stream, the multi-channel audio application is deployed in the display device, the multi-channel sound Source is provided, the playing device is used as the Sink of the multi-channel audio stream, and the equalizer parameter, the volume parameter and the like of each playing device are controlled through configuration on the display device. The Control Layer (Control Layer) is based on BAP: the display device is used as a Broadcast Source (Broadcast Source), a single Broadcast stream is set to bear a multi-channel audio stream, the playing device is used as a Broadcast receiving end (Broadcast Sink), and each playing device receives the audio stream corresponding to the channel Broadcast by the display device based on the determined channel and synchronously plays the audio stream; the display device determining, based on the broadcast assistant (Broadcast Assistant), that the display device is a broadcast source, each of the playback devices being configured to synchronize with the broadcast; based on VCP: the display device is used as a VCP controller, the volume of each play device can be controlled, the play device is used as a VCP renderer, and the adjustment is carried out according to the volume configuration set by the display device, based on CSIP: a display device as a Set Coordinator (Set Coordinator), which discovers a plurality of playback devices, can connect each playback device, and enables data encryption, the playback devices being Set members (Set members); based on CAP: a display stylus as an Initiator (Initiator) configured to transmit a multi-channel audio stream as a broadcast, and a playback apparatus as a receiver (receiver) to synchronously receive the broadcast stream; the display device acts as a director (Commander) and is connected to the plurality of playback devices, the display device acts as a broadcast source, and the matched BAP stream settings and volume settings are applied to the plurality of playback devices. The Transport Layer (Transport Layer) is based on BIG/BIS: the display device serves as a broadcast source, the playback device serves as a synchronization receiver (Synchronized Receiver) for synchronizing to the broadcast synchronization stream, the display device serves as a central device for connecting and controlling a plurality of playback devices and for transferring the scanning of the playback devices by means of a cast to allow the playback devices to synchronize to the broadcast stream transmitted by the display device, other setting data (such as volume etc.) are transmitted to each playback device, the playback devices serve as peripheral devices for receiving the configuration from the display device and for time-sequential control by means of a cast delegate scanning, the cast enabling low latency. An encoder Layer (Code Layer) display device designates the use of LC3 or a specific vendor encoding format to encode multi-channel audio to ensure that each playback device can synchronize to the same broadcast stream.

In an embodiment of the present application, there is provided a display apparatus including: a controller configured to: acquiring a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels; and broadcasting the audio streams of different channels in the multi-channel audio streams respectively through a plurality of channels, so that a plurality of playing devices receive the audio streams of corresponding channels respectively through at least one channel in the plurality of channels.

In an embodiment of the present application, a playback apparatus is provided, including: a controller configured to: the audio streams of the corresponding channels broadcast by the display device are received through at least one channel of the channels, the audio streams of different channels in the multi-channel audio streams are respectively broadcast by the display device through the channels, the multi-channel audio streams are acquired by the display device, and the multi-channel audio streams comprise the audio streams of the channels.

It can be appreciated that the relationship between channels is: the audio stream of each channel in the multi-channel audio stream is transmitted through one channel during broadcasting, that is, one channel corresponds to the audio stream of one channel one by one, and one channel is used for transmitting the audio stream of one channel in the multi-channel audio stream.

As shown in fig. 4, an interactive scene schematic diagram provided in this embodiment of the present application includes a display device 100, a first playing device 501, a second playing device 502 and a third playing device 503 (three playing devices are shown in the figure, the specific number is not limited), the display device transmits a left channel audio stream in a multi-channel audio stream through a channel 1, transmits a center channel audio stream in the multi-channel audio stream through a channel 2, transmits a right channel audio stream in the multi-channel audio stream through a channel 3, the first playing device receives the left channel audio stream through the channel 1 and plays, the second playing device receives the center channel audio stream through the channel 2 and plays, the third playing device receives the right channel audio stream through the channel 3 and plays, and the audio streams of each channel are synchronously transmitted and played, so that the user can hear sounds in different directions, and the sense of orientation of the sounds is retained.

It is understood that a multi-channel audio stream is an audio stream comprising a plurality of channels, such as the most basic stereo audio stream comprising: a left channel audio stream and a right channel audio stream, or a left channel audio stream, a right channel audio stream, and a center channel audio stream; a surround sound audio stream typically includes at least five channels, such as: the 5.0 audio stream includes: a front left channel audio stream, a front right channel audio stream, a left surround channel audio stream, a right surround channel audio stream, and a center channel audio stream; 5.1 the audio stream comprises: a front left channel audio stream, a front right channel audio stream, a left surround channel audio stream, a right surround channel audio stream, a center channel audio stream, and a bass gun channel audio stream.

It will be appreciated that, as shown in fig. 5, a broadcasting diagram of a multi-channel audio stream is shown, where the multi-channel audio includes: the left front channel audio, the right front channel audio, the left surround channel audio, the right surround channel audio and the center channel audio are illustrated as examples, and the left front channel audio stream, the right front channel audio stream, the left surround channel audio stream, the right surround channel audio stream and the center channel audio stream group packet obtained by encoding the audio of each channel through LC3 are broadcasted through different channels, that is, the multi-channel audio streams are contained in the same broadcast packet, but the audio streams of different channels are broadcasted through different channels.

It will be appreciated that the multi-channel audio stream includes no absolute correspondence between the number of channels and the playback device, the first case: the number of channels of the multi-channel audio stream is equal to the number of playback devices, such as: the multi-channel audio stream includes: the playing device comprises a playing device 1 and a playing device 2, wherein the playing device 1 receives and plays the left channel audio stream through a channel 1, and the playing device 2 receives and plays the right channel audio stream through a channel 3; in a second case, the number of channels of the multi-channel audio stream is greater than the number of playback devices, the multi-channel audio stream including: the playing device comprises a playing device 1 and a playing device 2, wherein the playing device 1 broadcasts left channel audio stream, the channel 2 broadcasts right channel audio stream, the channel 3 broadcasts middle channel audio stream, the playing device 1 receives and plays left channel audio stream and middle channel audio stream through the channel 1 and the channel 3, and the playing device 2 receives and plays middle channel audio stream and right channel audio stream through the channel 2 and the channel 3; third case: the number of channels of the multi-channel audio stream is smaller than the number of playback devices, such as: the multi-channel audio stream includes: the playing device comprises a playing device 1, a playing device 2 and a playing device 3, wherein the playing device 1 broadcasts the left channel audio stream, the channel 2 broadcasts the right channel audio stream, the playing device 1 receives the left channel audio stream through the channel 1 and plays the left channel audio stream, the playing device 2 receives the right channel audio stream through the channel 3 and plays the right channel audio stream, and the playing device 3 (which can be arranged between the playing device 1 and the playing device 2) receives the left channel audio stream and the right channel audio stream through the channel 1 and the channel 2 and plays the left channel audio stream and the right channel audio stream. Specifically, the display device broadcasts the multi-channel audio stream through a plurality of channels, the playing device determines to receive the audio stream of the corresponding channel from the preset channel according to the actual situation, and the corresponding relation between the playing device and the channels in the multi-channel audio stream is determined according to the actual requirement, which is not limited in the embodiment of the present application.

It will be appreciated that the display device broadcasts the multi-channel audio stream by broadcasting an isochronous stream (Broadcast Isochronous Stream, BIS), the display device does not know how many playback devices can receive the broadcasted multi-channel audio stream, and a connection-oriented asynchronous transfer (Asynchronous Connectionless, ACL) connection between the display device and the plurality of playback devices need not be established, i.e. there is no connection between the display device and the plurality of playback devices. One audio stream broadcast by the display device is called BIS, and a group of BIS is called a broadcast synchronization group (Broadcast Isochronous Group, BIG), for example, one BIS for each channel of the multi-channel audio stream and one BIG for the multi-channel audio stream.

It will be appreciated that for each playback device, the channel of the multi-channel audio stream that receives the broadcast may be negotiated in advance with the display device. The channel information allocated to the playing device by the display device may be transmitted through an ACL link established between the display device and the playing device, or may be transmitted through other links (such as a connected isochronous stream (Connected Isochronous Stream, CIS) link, etc.) existing between the display device and the playing device, or may be sent through broadcasting, where the specific embodiment of the present application is not limited.

Illustratively, the multi-channel audio sent by one display device needs to be received and played by three playing devices, the display device establishes an ACL link with the playing device 1 (which may be a connection establishment request initiated by the playing device or a connection establishment request initiated by the display device), and the display device sends information indicating that the playing device receives a broadcast message through the channel 1 to the playing device 1 through the established ACL link; the display equipment is disconnected with the playing equipment 1, an ACL link is established with the playing equipment 2, and the display equipment sends information indicating the playing equipment to receive broadcast messages through the channel 2 to the playing equipment 2 through the established ACL link; the display device is disconnected from the playback device 2, an ACL link is established with the playback device 3, and the display device sends information to the playback device 3 via the ACL link established indicating that the playback device receives broadcast messages via the channel 3.

It will be appreciated that the plurality of playback devices each receive the audio stream of the corresponding channel via at least one of the plurality of channels, and in particular, each playback device receives the audio stream of the corresponding channel according to a pre-negotiated channel. Such as: playback device 1 receives the audio streams transmitted via channels 1 and 2, playback device 2 receives the audio streams transmitted via channels 2, playback device 3 receives the audio streams transmitted via channels 1 and 3, and each playback device processes (e.g., digital-to-analog converts, converts digital signals to analog signals, amplifies, etc.) and plays back the audio streams received via the negotiated channels.

In the embodiment of the application, the display device acquires multi-channel audio streams, and broadcasts audio streams of different channels in the multi-channel audio streams respectively through a plurality of channels; the playback device receives an audio stream of a corresponding channel broadcast by the display device over at least one of a plurality of channels, the multi-channel audio stream comprising audio streams of a plurality of channels. Thus, different playing devices receive audio streams broadcast by the display device through the designated channel, such as a multi-channel audio stream including a left-channel audio stream, a right-channel audio stream and a center-channel audio stream, when the display device broadcasts the multi-channel audio stream, the left-channel audio stream is transmitted through the channel 1, the right-channel audio stream is transmitted through the channel 2, the center-channel audio stream is transmitted through the channel 3, the playing device 1 receives and plays the left-channel audio stream and the center-channel audio stream transmitted through the channel 1 and the channel 3, and the playing device 2 receives and plays the right-channel audio stream and the center-channel audio stream transmitted through the channel 2 and the channel 3, so that a function of playing the multi-channel audio can be realized by a plurality of playing devices, and the most possible azimuth information of sounds in the multi-channel audio can be reserved under the condition that a user has a plurality of playing devices, so that playing effects are better and user experience is improved.

In some embodiments of the present application, the display device further includes: a display and a user input interface; a display configured to: before the controller acquires the multi-channel audio stream, displaying a plurality of channel identifiers, wherein each channel identifier is used for indicating the audio stream of one channel, and each channel identifier corresponds to one channel; a user input interface configured to: receiving user operation of selecting at least one channel identifier corresponding to each playing device from a plurality of channel identifiers; a controller, further configured to: responding to user operation, generating a plurality of configuration information, wherein each configuration information is used for indicating the mapping relation of a playing device and a channel corresponding to at least one channel identifier; respectively sending corresponding configuration information to a plurality of playing devices; the playing device receives configuration information sent by the display device; the playback device receives the audio stream of the corresponding channel through at least one channel indicated by the configuration information.

It will be appreciated that the channel identifier displayed by the display device is used to indicate the channel included in the audio to be played, and the user designates the channel to be played for each playing device.

It will be appreciated that as shown in fig. 6, for a plurality of channel identifications displayed by the display device, the channel identifications shown in fig. 6 are: the audio system comprises a left channel, a right channel and a middle-set channel, wherein corresponding playing equipment selected by a user for the left channel is playing equipment 1, corresponding playing equipment selected for the middle-set channel is playing equipment 2, corresponding playing equipment selected for the right channel is playing equipment 3, the left channel corresponds to channel 1, the middle-set channel corresponds to channel 2, the right channel corresponds to channel 3, then the multi-channel audio stream broadcasted by the display equipment is received by the playing equipment 1 through the channel 1 and played, the middle-set channel audio stream is received by the playing equipment 2 through the channel 3 and played, and the playing equipment 3 receives the right channel audio stream through the channel 4 and played, so that the stereo sound effect is realized.

It may be understood that each configuration information is configured to indicate a mapping relationship between a playback device and a channel corresponding to at least one channel identifier, for example: playback device 1_1_2, playback device 2_2, playback device 3_3 for instructing playback device 1 to receive an audio stream via channel 1 and channel 2, playback device 2 to receive an audio stream via channel 2, and playback device 3 to receive an audio stream via channel 3.

Illustratively, the playing device 1 requests to establish an ACL connection with the display device, the display device receives the request and establishes a connection with the playing device 1, the user selects a channel identifier for the playing device 1, and after the selection is completed, the display device sends the generated configuration information to the playing device 1 through an ACL link; the playing device 1 receives the configuration information and then disconnects the ACL connection with the display device, the playing device 2 requests to establish the ACL connection with the display device, the display device receives the request and establishes the connection with the playing device 2, a user selects a sound channel identifier for the playing device 2, and after the selection is completed, the display device sends the generated configuration information to the playing device 2 through an ACL link. Thus, channels for receiving audio streams are provided for both playback devices.

It will be appreciated that configuration information corresponding to a plurality of playback devices may be sent serially, such as: an ACL link is established between the playing device and the display device, and the display device sequentially sends configuration information corresponding to the playing device for each playing device; the configuration information corresponding to the plurality of playing devices may also be sent in parallel, for example: and transmitting the plurality of configuration information generated by the plurality of playing devices in a broadcast mode, wherein any playing device determines the configuration information matched with the playing device according to the playing device indicated by the configuration information. The specific configuration information sending manner is not limited in the embodiments of the present application.

In this embodiment of the present application, the display device further includes: a display and a user input interface; a display configured to: before the controller acquires the multi-channel audio stream, displaying a plurality of channel identifiers, wherein each channel identifier is used for indicating the audio stream of one channel, and each channel identifier corresponds to one channel; a user input interface configured to: receiving user operation of selecting at least one channel identifier corresponding to each playing device from a plurality of channel identifiers; a controller, further configured to: responding to user operation, generating a plurality of configuration information, wherein each configuration information is used for indicating the mapping relation of a playing device and a channel corresponding to at least one channel identifier; respectively sending corresponding configuration information to a plurality of playing devices; the playing device receives configuration information sent by the display device; the playback device receives the audio stream of the corresponding channel through at least one channel indicated by the configuration information. Therefore, the user can customize the playing sound channels of each playing device according to the needs, and the diversified demands of the user are met.

In some embodiments of the present application, the display is specifically configured to: displaying a plurality of channel identifications corresponding to the target type audio, wherein the channels included in different types of audio are different; a controller, further configured to: responding to user operation, generating a target configuration file corresponding to the target type audio, wherein the target configuration file comprises a plurality of configuration information; storing target configuration files, and storing configuration files corresponding to different types of audio in display equipment; after acquiring the multi-channel audio stream, determining that the multi-channel audio belongs to the target type audio; transmitting a type identifier to a plurality of playing devices, wherein the type identifier indicates a target type audio; the playing device receives the type identifier, determines corresponding configuration information based on the type identifier, and stores the configuration information corresponding to different types of audio.

It will be appreciated that the channels corresponding to different types of audio are different, such as: 2.0 audio including left and right channels, 2.1 audio including left, right and bass channels, 5.0 audio including front left, rear left, center, front right surround channels, etc.

It will be appreciated that the common types of audio may be configured in the display device, and the number of playback devices of the user is generally unchanged, i.e. the number of playback devices of the user is fixed, irrespective of the number of channels comprised in the multi-channel audio stream, so that the common types of audio may be configured in advance for direct use in subsequent playback.

Illustratively, as shown in fig. 7, for different types of audio identifications displayed by a display device, 2.0 indicates that the audio includes a left channel and a right channel, 2.1 indicates that the audio includes a left channel, a right channel, and a subwoofer channel, 3.0 indicates that the audio includes a left channel, a right channel, and a center channel, 5.0 indicates that the audio includes a left front channel, a left surround channel, a right front channel, a right surround channel, and a center channel, 5.1 indicates that the audio includes a left front channel, a left surround channel, a right front channel, a right surround channel, a center channel, and a subwoofer channel, and 7.1 indicates that the audio includes a left front channel, a left surround channel, a right front channel, a right surround channel, a left rear surround channel, a right rear surround channel, a center channel, and a subwoofer channel. As shown in fig. 8, the channel identification of the type 2.0 audio displayed by the display device after 2.0 is selected for the user.

It can be understood that, for the configuration information of the plurality of playing devices, the configuration may be performed before the multi-channel audio stream is required to be sent, or the multi-channel audio stream is not required to be sent, and the configuration is completed in advance for subsequent use.

It can be understood that after the display device acquires the multi-channel audio stream, determining that the multi-channel audio stream belongs to the target type audio, and respectively transmitting the type identifier of the target type audio to a plurality of devices, specifically, broadcasting a broadcast packet carrying the type identifier by the display device, after each device in the plurality of broadcasting devices receives the broadcast packet, acquiring the type identifier included in the broadcast packet, and determining a configuration file according to the type identifier; the type identifier may also be carried in a multi-channel audio stream broadcast by the display device, where the playback device receives the type identifier first, determines a configuration file according to the type identifier, and then receives the audio stream from a corresponding channel according to the configuration file. The embodiment of the application is not limited, and the embodiment is specifically determined according to actual needs.

In the embodiment of the application, the display is specifically configured to: displaying a plurality of channel identifications corresponding to the target type audio, wherein the channels included in different types of audio are different; a controller, further configured to: responding to user operation, generating a target configuration file corresponding to the target type audio, wherein the target configuration file comprises a plurality of configuration information; storing target configuration files, and storing configuration files corresponding to different types of audio in display equipment; after acquiring the multi-channel audio stream, determining that the multi-channel audio belongs to the target type audio; transmitting a type identifier to a plurality of playing devices, wherein the type identifier indicates a target type audio; the playing device receives the type identifier, determines corresponding configuration information based on the type identifier, and stores the configuration information corresponding to different types of audio. Therefore, based on various types of existing audios, the playing channels corresponding to different types of audios can be configured in advance, configuration is not needed before the multichannel audios are played each time, and the multichannel audios to be played can be played directly according to the configuration information configured in advance in the follow-up mode under the condition that the number of the playing devices is unchanged, so that the playing channels of the user-defined playing devices are more convenient and simpler.

In some embodiments of the present application, the user input interface is further configured to: receiving a parameter setting operation of a user on each playing device, wherein the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters; a controller, further configured to: responding to the parameter setting operation, and generating parameter setting information corresponding to each playing device; respectively adding the parameter setting information corresponding to each playing device into the corresponding configuration information; the playing device is configured according to the parameter setting information in the configuration information.

It will be appreciated that equalizer parameters include: frequency (Frequency), gain (Gain), range of influence (Q/BandWidth), attenuated pattern (Type), octave (Oct), etc.

It will be appreciated that a plurality of playback devices may be considered as a group on the display device side, and that the group of playback devices is considered in combination, with equalizer parameters being set for each playback device that best results in overall sound effects.

It will be appreciated that when the playback device side cannot adjust the volume, the volume of the playback device may be set on the display device side, or a default volume parameter may be set on the display device side.

It will be appreciated that if the equalizer parameters and volume parameters are not set by the user, they may be set according to default parameters.

It will be appreciated that the playback device, after receiving the audio stream of the corresponding channel over at least one channel, configures and plays back in accordance with the equalizer parameters and the volume parameters.

In an embodiment of the present application, the user input interface is further configured to: receiving a parameter setting operation of a user on each playing device, wherein the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters; a controller, further configured to: responding to the parameter setting operation, and generating parameter setting information corresponding to each playing device; respectively adding the parameter setting information corresponding to each playing device into the corresponding configuration information; the playing device is configured according to the parameter setting information in the configuration information. Therefore, a plurality of playing devices can be regarded as a group, and the equalizer parameters and/or the volume parameters of each playing device are comprehensively considered, so that each playing device has better tone quality and better sound effect when playing multi-channel audio together.

In an embodiment of the present application, a data transmission method is provided, as shown in fig. 9, and the method includes the following steps 101 to 103.

101. The display device obtains a multi-channel audio stream.

Wherein the multi-channel audio stream comprises a plurality of audio streams of channels.

102. The display device broadcasts audio streams of different channels of the multi-channel audio stream through a plurality of channels, respectively.

103. The playback device receives an audio stream of a corresponding channel broadcast by the display device through at least one of the plurality of channels.

In this embodiment of the present application, a display device acquires a multi-channel audio stream, where the multi-channel audio stream includes audio streams of a plurality of channels, and the display device broadcasts audio streams of different channels in the multi-channel audio stream respectively through the plurality of channels, and a playback device receives audio streams of corresponding channels broadcast by the display device through at least one channel of the plurality of channels. Thus, different playing devices receive audio streams broadcast by the display device through the designated channel, such as a multi-channel audio stream including a left-channel audio stream, a right-channel audio stream and a center-channel audio stream, when the display device broadcasts the multi-channel audio stream, the left-channel audio stream is transmitted through the channel 1, the right-channel audio stream is transmitted through the channel 2, the center-channel audio stream is transmitted through the channel 3, the playing device 1 receives and plays the left-channel audio stream and the center-channel audio stream transmitted through the channel 1 and the channel 3, and the playing device 2 receives and plays the right-channel audio stream and the center-channel audio stream transmitted through the channel 2 and the channel 3, so that the multi-channel audio playing function can be realized by a plurality of playing devices, and the azimuth information of sound in the multi-channel audio can be reserved as much as possible under the condition that a user has a plurality of playing devices, so that the playing effect is better and the user experience is improved.

In some embodiments of the present application, as shown in fig. 10 in conjunction with fig. 9, before the step 101, the data transmission method further includes the following steps 104 to 108, where the step 103 may be specifically implemented by the following step 103 a.

104. The display device displays a plurality of channel identifications.

Wherein each channel identifier is used for indicating an audio stream of one channel, and each channel identifier corresponds to one channel.

105. The display device receives a user operation of selecting at least one channel identifier corresponding to each playing device from the plurality of channel identifiers.

106. The display device generates a plurality of configuration information in response to a user operation.

Each piece of configuration information is used for indicating the mapping relation between one playing device and a channel corresponding to at least one channel identifier.

107. The display device sends corresponding configuration information to the plurality of playing devices respectively.

108. The playing device receives the configuration information sent by the display device.

103a, the playback device receives the audio stream of the corresponding channel through at least one channel indicated by the configuration information.

In the embodiment of the application, the display device displays a plurality of channel identifiers, each channel identifier is used for indicating an audio stream of one channel, and each channel identifier corresponds to one channel; the display device receives user operation of selecting at least one channel identifier corresponding to each playing device from a plurality of channel identifiers; the display equipment responds to user operation and generates a plurality of configuration information, wherein each configuration information is used for indicating the mapping relation between one playing equipment and a channel corresponding to at least one channel identifier; the display equipment respectively sends corresponding configuration information to a plurality of playing equipment; the playing device receives configuration information sent by the display device; the playback device receives the audio stream of the corresponding channel through at least one channel indicated by the configuration information. Therefore, the user can customize the playing sound channels of each playing device according to the needs, and the diversified demands of the user are met.

In some embodiments of the present application, as shown in fig. 11 in conjunction with fig. 10, after the step 101, the data transmission method further includes the following step 109 and step 110, before the step 103, the method further includes the following step 111 and step 112, the step 104 may be specifically implemented by the following step 104a, and the step 106 may be specifically implemented by the following steps 106a and 106 b.

104a, the display device displays a plurality of channel identifications corresponding to the target type audio.

Wherein different types of audio comprise different channels.

106a, the display equipment responds to the user operation to generate a target configuration file corresponding to the target type audio.

The target configuration file comprises a plurality of configuration information.

106b, the display device saves the target configuration file.

And the display equipment stores configuration files corresponding to different types of audios.

109. The display device determines that the multi-channel audio belongs to the target type audio.

110. The display device sends a type identification to the plurality of playback devices.

The type identifier indicates the target type audio, and each playing device stores configuration information corresponding to different types of audio.

111. The playing device receives the type identifier sent by the display device.

112. The playback device determines the corresponding configuration information based on the type identifier.

The playing device stores configuration information corresponding to different types of audio.

According to the embodiment of the application, based on various types of existing audios, playing channels corresponding to different types of audios can be configured in advance by each playing device, configuration is not needed before the multichannel audios are played each time, and the multichannel audios to be played can be played directly according to the configuration information configured in advance in the follow-up mode under the condition that the number of the playing devices is unchanged, so that the playing channels of the user-defined playing devices are more convenient and simpler.

In some embodiments of the present application, as shown in fig. 12 in conjunction with fig. 10, after the step 106, the data transmission method further includes the following steps 113 to 115, and after the step 108, the method further includes a step 116.

113. The display device receives a parameter setting operation of a user for each playback device.

Wherein the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters.

114. The display device responds to the parameter setting operation and generates parameter setting information corresponding to each playing device.

115. The display device adds the parameter setting information corresponding to each playing device to the corresponding configuration information respectively.

116. The playing device is configured according to the parameter setting information in the configuration information.

In the embodiment of the application, the display device receives a parameter setting operation of a user on each playing device, wherein the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters; the display equipment responds to the parameter setting operation and generates parameter setting information corresponding to each playing equipment; the display equipment adds the parameter setting information corresponding to each playing equipment into the corresponding configuration information respectively; the playing device is configured according to the parameter setting information in the configuration information. Therefore, a plurality of playing devices can be regarded as a group, and the equalizer parameters and/or the volume parameters of each playing device are comprehensively considered, so that each playing device has better tone quality and better sound effect when playing multi-channel audio together.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process executed by the data transmission method, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

The computer readable storage medium may be a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or the like.

The present invention provides a computer program product comprising: the computer program product, when run on a computer, causes the computer to implement the data transmission method 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 present application has been described in detail with reference to the foregoing embodiments, it should 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 corresponding technical solutions from the scope of the technical solutions of the embodiments of the present 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 (10)

1. A display device, characterized by comprising:

a controller configured to: acquiring a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels;

and broadcasting the audio streams of different channels in the multi-channel audio stream respectively through a plurality of channels, so that a plurality of playing devices receive the audio streams of corresponding channels respectively through at least one channel in the plurality of channels.

2. The display device according to claim 1, wherein the display device further comprises: a display and a user input interface;

the display is configured to: before the controller acquires the multi-channel audio stream, displaying a plurality of channel identifiers, wherein each channel identifier is used for indicating the audio stream of one channel, and each channel identifier corresponds to one channel;

the user input interface is configured to: receiving user operation of selecting at least one channel identifier corresponding to each playing device from the plurality of channel identifiers;

the controller is further configured to: generating a plurality of configuration information in response to the user operation, wherein each configuration information is used for indicating the mapping relation of a playing device and a channel corresponding to at least one channel identifier;

And respectively sending the corresponding configuration information to the plurality of playing devices so that each playing device receives the audio stream of the corresponding channel through at least one channel indicated in the corresponding configuration information.

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

displaying the multiple channel identifications corresponding to the target type audio, wherein the channels included in different types of audio are different;

the controller is further configured to:

responding to the user operation, generating a target configuration file corresponding to the target type audio, wherein the target configuration file comprises the plurality of configuration information;

the target configuration file is stored, and configuration files corresponding to different types of audio are stored in the display equipment;

after the multi-channel audio stream is acquired, determining that the multi-channel audio belongs to the target type audio;

and sending type identifiers to the plurality of playing devices so that each playing device can determine corresponding configuration information based on the type identifiers, the type identifiers indicate the target type audio, and each playing device stores the configuration information corresponding to different types of audio.

4. A display device according to claim 2 or 3, wherein the user input interface is further configured to:

receiving parameter setting operation of a user on each playing device, wherein the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters;

the controller is further configured to: generating parameter setting information corresponding to each playing device in response to the parameter setting operation;

and respectively adding the parameter setting information corresponding to each playing device into the corresponding configuration information so that each playing device can be configured according to the parameter setting information in the corresponding configuration information.

5. A playback device, comprising:

a controller configured to: receiving, by the display device, audio streams of corresponding channels broadcast by the display device through at least one channel of a plurality of channels, where the display device broadcasts audio streams of different channels of the multi-channel audio streams respectively through the channels, the multi-channel audio streams are acquired by the display device, and the multi-channel audio streams include audio streams of a plurality of channels.

6. The playback device of claim 5, wherein the controller is specifically configured to:

Receiving configuration information sent by the display device, wherein the configuration information is generated by the display device in response to user operation, each configuration information is used for indicating the mapping relation of a playing device and a channel corresponding to at least one channel identifier, the user operation is an operation that a user received by the display device selects at least one channel identifier corresponding to each playing device from a plurality of channel identifiers, the plurality of channel identifiers are displayed by the display device, each channel identifier is used for indicating an audio stream of one channel, and each channel identifier corresponds to one channel;

and receiving an audio stream of a corresponding channel through at least one channel indicated by the configuration information.

7. The playback device of claim 6, wherein the controller is specifically configured to: receiving a type identifier sent by the display equipment, wherein the type identifier indicates a target type audio, and the target type audio is a type to which the multichannel audio determined by the display equipment belongs;

and determining corresponding configuration information based on the type identifier, wherein the playing device stores the configuration information corresponding to different types of audio.

8. The playback device as recited in claim 6 or 7, wherein the configuration information comprises: parameter setting information, wherein the parameter setting information corresponding to each playing device is generated by the display device in response to a parameter setting operation, and the parameter setting operation is a parameter setting operation of a user on each playing device, received by the display device, and the parameter setting operation is used for setting equalizer parameters and/or setting volume parameters;

and configuring according to the parameter setting information in the configuration information.

9. A data transmission method, applied to a display device, comprising:

acquiring a multi-channel audio stream, wherein the multi-channel audio stream comprises audio streams of a plurality of channels;

and broadcasting the audio streams of different channels in the multi-channel audio stream respectively through a plurality of channels, so that a plurality of playing devices receive the audio streams of corresponding channels respectively through at least one channel in the plurality of channels.

10. A data transmission method, applied to a playback device, comprising:

receiving, by the display device, audio streams of corresponding channels broadcast by the display device through at least one channel of a plurality of channels, where the display device broadcasts audio streams of different channels of the multi-channel audio streams respectively through the channels, the multi-channel audio streams are acquired by the display device, and the multi-channel audio streams include audio streams of a plurality of channels.