CN102867525B - A kind of multichannel voice frequency disposal route, audio-frequency playing terminal and apparatus for receiving audio - Google Patents

Abstract

The present invention is applicable to the field of audio playback, and provides a multi-channel audio processing method, an audio playback terminal, and an audio receiving device. The method includes the following steps: the audio playback terminal establishes an audio channel index table, and uses each channel of audio The audio index that identifies the channel of audio is encapsulated into an audio frame together, and then the multi-channel audio frame is encapsulated into a data frame; the audio playback terminal establishes a wireless connection with the audio receiving device; the audio playback terminal sends the audio channel index table to the audio receiving device; the audio playback The terminal sends the data frame to the audio receiving device. By providing a multi-channel audio processing method, an audio playback terminal, and an audio receiving device, the present invention solves the problem that multiple audios are played simultaneously on the existing audio playback terminal and interferes with each other, so that multiple audios are played at the same time and the multiple audios Without interfering with each other, you can choose audio-visual at the same time.

Description

A multi-channel audio processing method, audio playback terminal and audio receiving device

technical field

The invention belongs to the field of audio playing, and in particular relates to a multi-channel audio processing method, an audio playing terminal and an audio receiving device.

Background technique

Compared with previous audio playback devices, audio playback devices such as smart TVs and DVDs have more powerful multi-channel audio and video processing capabilities. The wireless communication technology between TV and remote control is relatively mature. At present, TV can communicate with wireless terminals such as remote control and smart phone, and establish channels between TV and wireless terminals to transmit data information. Smart TVs already have the function of processing and playing multi-channel audio and video, and various electronic entertainment devices with this technology are widely used. For example, when the computer plays multiple videos at the same time, multiple videos and audios can be output through the computer at the same time. Through software, we can shield an audio signal so that the output audio will not interfere directly, that is, output an audio signal , shield other audio signals, and shield the audio output corresponding to a certain video through software settings. If the video to be played supports multiple languages, such as a video containing audio information in both Chinese and English languages, switch channels , the computer can realize Chinese audio output and English audio output. Although the current smart TV can open one or more video windows on the current screen to play at the same time, the TV has only one audio outlet and can only play one audio source at the same time. If multiple audio sources are played at the same time, the audio will overlap. Interference makes it impossible to perform normal audio-visual. At the same time, the current TV can also play background music in the background at the same time, but if the TV is also playing audio information of other programs at the same time, the audio information will directly interfere and overlap, affecting audio-visual. Or a movie is dubbed in different languages at the same time. For example, for an English movie, some people want to hear the original English dubbing, but some people want to hear the translated Chinese dubbing. The movie has two kinds of audio at the same time. data information, but when playing on the TV, only one audio can be selected for playback, and the two audios cannot be output at the same time. At the same time, the TV cannot clearly display a movie with two audios at the same time. Play two audio dubs. TVs are generally placed in public environments. When the TV plays audio information through external speakers, it can only play one audio at the same time, that is, the TV can only play through one audio outlet. If multiple audios are played at the same time, multiple audios are played at the same time. It will make people feel confused, so that no one can listen to the sound they want to hear. There will be superposition and interference between audio files, and the audio files played on TV will not be recognized by human ears.

Contents of the invention

The purpose of the present invention is to provide a multi-channel audio processing method, an audio playback terminal and an audio receiving device, which solves the problem of simultaneously playing multiple audios on the audio playback terminal without interfering with each other, enabling simultaneous audio-visual selection The problem.

The embodiment of the present invention is achieved in this way, a multi-channel audio processing method, the method includes the following steps:

The audio playback terminal creates an audio channel index table, the audio channel index table includes audio identifiers of multiple channels of audio and the audio channel identifiers corresponding to each audio identifier, and each channel of audio and the audio index used to identify the channel of audio Encapsulate into an audio frame, and then encapsulate the multi-channel audio frame into a data frame;

The audio playback terminal establishes a wireless connection with the audio receiving device;

The audio playback terminal sends the audio channel index table to the audio receiving device;

The audio playing terminal sends the data frame to the audio receiving device.

The audio index includes: an audio identifier and/or an audio channel identifier.

After the step of setting up the audio channel index table at the audio playback terminal, it also includes:

When the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the identification of the audio channel corresponding to the identifier of the updated multi-channel audio symbol.

The audio playback terminal sends the audio channel index table to the audio receiving device specifically including:

It is judged whether there is a new audio receiving device to establish a wireless connection with the audio playback terminal, and when a new audio receiving device establishes a wireless connection with the audio playback terminal, the audio channel index table is sent to the new audio receiving device.

A multi-channel audio processing method, said method comprising the steps of:

The audio receiving device establishes a wireless connection with the audio playback terminal;

The audio receiving device receives the audio channel index table sent by the audio playback terminal;

The audio receiving device determines the audio index to be received, receives and parses the data frame to obtain the audio frame corresponding to the audio index to be received;

The audio receiving device parses the audio frame and plays it.

After the audio receiving device receives the audio channel index table step that the audio playback terminal sends, it also includes:

When the received audio channel index table is updated, replace the old audio channel index table with the new audio channel index table.

Before the audio receiving device parses the audio frame and plays it, it also includes:

Verify that the audio index in the data frame is the same as the audio that needs to be received.

An audio playback terminal, the audio playback terminal comprising:

The data encapsulation unit is used for the audio playback terminal to establish an audio channel index table, encapsulates each channel of audio and the audio index used to identify the channel of audio into an audio frame, and then encapsulates multiple channels of audio frames into a data frame;

The first wireless functional connection unit is used for establishing a wireless connection between the audio playback terminal and the audio receiving device;

The index table sending unit is used for the audio playback terminal to send the audio channel index table to the audio receiving device;

The information sending unit is used for the audio playing terminal to send the data frame to the audio receiving device.

The audio playback terminal also includes:

The index table update unit is used to judge that when the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the updated multi-channel audio The identifier of the audio channel to which the identifier corresponds.

An audio receiving device, the audio receiving device comprising:

The second wireless functional connection unit is used for establishing a wireless connection between the audio receiving device and the audio playback terminal;

The index table receiving unit is used for the audio receiving device to receive the audio channel index table sent by the audio playback terminal;

The data frame receiving unit is used for the audio receiving device to determine the audio index to be received, receive and analyze the data frame to obtain the audio frame corresponding to the audio index to be received;

The playing unit is used for the audio receiving device to analyze and play the audio frame.

The invention solves the problem of playing multiple audios simultaneously on the audio playback terminal through a multi-channel audio processing method, an audio playback terminal, and an audio receiving device, so that when playing multiple audio channels at the same time, they do not interfere with each other, and can simultaneously For viewing and listening, the user can choose to listen to the audio in different languages of the program being played, so as to realize the audio playback and viewing of multiple programs or the viewing and listening of multiple different audios of a program at the same time.

Description of drawings

Fig. 1 is the realization flowchart of embodiment 1 of an audio playback terminal of a kind of multi-channel audio processing method provided by the present invention;

Fig. 2 is an implementation flowchart of Embodiment 1 of an audio receiving device of a multi-channel audio processing method provided by the present invention;

Fig. 3 is a structural diagram of Embodiment 1 of an audio playback terminal and an audio receiving device provided by the present invention;

Fig. 4 is the implementation flowchart of Embodiment 2 of an audio playback terminal of a multi-channel audio processing method provided by the present invention;

Fig. 5 is a flow chart of the implementation of Embodiment 2 of an audio receiving device of a multi-channel audio processing method provided by the present invention;

FIG. 6 is a structural diagram of Embodiment 2 of the audio playback terminal provided by the present invention; and

Fig. 7 is a structural diagram of Embodiment 2 of the audio receiving device provided by the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

Embodiment one:

The present invention provides a multi-channel audio processing method, the implementation process of the method in the audio playback terminal is shown in Figure 1, including the following steps:

S101, the audio playback terminal establishes an audio channel index table, the audio channel index table includes audio identifiers of multiple audio channels and audio channel identifiers corresponding to each audio identifier, and combines each channel of audio with the audio used to identify the channel of audio Indexes are encapsulated into audio frames together, and then multiple audio frames are encapsulated into data frames;

S102, the audio playback terminal establishes a wireless connection with the audio receiving device;

S103, the audio playback terminal sends the audio channel index table to the audio receiving device;

S104, the audio playing terminal sends the data frame to the audio receiving device.

The method provided by the present invention encapsulates the multi-channel audio being played and the audio index corresponding to the multi-channel audio into a data frame, and sends the data frame corresponding to the audio being played to the audio receiving device through a wireless connection, Sending to the audio receiving device in the form of audio frame data adds a method of sending audio in the form of audio frame data on the basis of the traditional method of directly playing the audio being played through a speaker. Through the wireless connection, the audio being played can be sent through the data frame at the same time, so that there will be no auditory confusion when playing multiple audios at the same time because they are all played on the speaker. At the same time, through the data frame In the form of audio playback, users can choose the audio they need to listen to according to their own needs, where the audio index can be an audio identifier and/or an audio channel identifier, and the audio channel identifier is the channel number of the audio transmitted by the audio playback terminal; the audio identifier The symbol can be the number of the audio being played by the audio playback terminal, such as the channel number CCTV-1 of the TV program being played or the sequence encoding of the video being played, etc.; the multi-channel audio is encapsulated into multiple audio frames according to a predetermined encapsulation protocol, the first The I road audio frame is specifically: the data size of the I road audio index, the I road audio, the data content of the I road audio, the concrete mode that the multi-way audio frame is encapsulated as a data frame is: the data of the data frame header, the data frame Size, ..... (I-1) road audio frame, I road audio frame...,, end of data frame. Where I is any value from 1 to n, and n is the total amount of audio being played.

Optionally, in addition to identifying multiple channels of audio, the audio index can also be used for verification after the audio receiving device receives the audio.

Optionally, after the audio playback terminal establishes the audio channel index table step, it also includes:

When the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the identification of the audio channel corresponding to the identifier of the updated multi-channel audio symbol.

Since the audio program being played will increase or decrease, there is a one-to-one correspondence between multiple audio channels and audio channels. After the audio program changes, the corresponding audio channel index table will also change, that is, increase the audio channel index table. or reduce the items in the audio channel index table, and send the latest audio channel index table to the audio receiving device, so that the contents in the provided audio channel index table are all audio programs that the user can select in real time.

Optionally, sending the audio channel index table to the audio receiving device at the audio playback terminal specifically includes:

Judging whether there is a new audio receiving device to establish a wireless connection with the audio playback terminal, when a new audio receiving device establishes a wireless connection with the audio playback terminal, send the audio channel index table to the audio receiving device, here specifically can also be when there is a new audio receiving device The audio channel index table is sent to the newly added audio receiving device only when the wireless connection is established by the existing audio receiving device. When there is no new audio receiving device, there is no need to repeatedly send the audio channel index table, only multiple data frames are sent to reduce redundancy. amount of remaining data.

Since the audio receiving device may increase or decrease, when there is a decrease in the audio receiving device, it will not affect the playback of the original program, and there is no need to send the audio channel index table, but when a new audio receiving device is connected, due to The new audio receiving device does not have an audio channel index table, and cannot select and receive the audio to be received. At this time, after the audio playback terminal detects that a new audio receiving device has established a connection, it sends the existing audio channel index table on the audio playback terminal to To a new audio receiving device, the audio receiving device can select the audio to be received according to the audio channel index table.

A multi-channel audio processing method, the implementation process of the method in the audio receiving device is as shown in Figure 2, comprising the following steps:

S201, the audio receiving device establishes a wireless connection with the audio playback terminal;

S202, the audio receiving device receives the audio channel index table sent by the audio playback terminal;

S203, the audio receiving device determines the audio index to be received, receives and parses the data frame to obtain the audio frame corresponding to the audio index to be received;

S204, the audio receiving device parses and plays the audio frame.

Establish a wireless connection with the audio playback terminal through the audio receiving device, by receiving the audio channel index table sent by the audio playback terminal, each audio index in the received audio frame is an audio identifier and/or an audio channel identifier; when in the audio index When the audio channel identifier is included, the audio receiving device receives the audio identifier selected by the user, finds the audio channel identifier corresponding to the audio through the audio channel index table according to the audio identifier, and then parses the data frame to obtain the audio frame, and determines the required The audio channel identifier is compared with the audio channel identifier encapsulated in the audio frame to obtain the required audio frame; when the audio index is an audio identifier, the audio identifier selected by the user is directly compared with the audio identifier in the audio frame Compare to establish the desired audio frame.

Wherein, when the audio index contains the audio channel identifier, the audio receiving device can also receive the channel identifier through the audio stored by default, such as receiving the audio of the first channel by default when starting up, and then analyzing the data frame to obtain the audio frame, and then Determine the required audio channel identifier and compare it with the audio channel identifier encapsulated in the audio frame to obtain the required audio frame; when the audio index is an audio identifier, the audio receiving device receives the channel identifier according to the default stored audio Search the audio channel index table to obtain the corresponding audio identifier and compare it with the audio identifier in the audio frame to establish the required audio. Since each audio channel of the audio playback terminal is fixed, the audio channel identifier is used as the identifier of each audio channel. When the audio being played is dynamically changing, the audio receiving terminal can identify the audio by comparing the identifier. Play the audio of each channel of the terminal, so when the audio index contains the audio channel identifier, the user can switch to the audio to be received more accurately, and determine the data frame of the audio to be received according to the audio channel. The audio receiving device The data frame received through the fixed audio channel in the subsequent audio reception only has the audio of this program. In this way, the audio receiving device analyzes and plays the audio selected by the user on the audio receiving device, and the audio playback terminal simultaneously Play multiple audios, and the audio receiving device receives an audio that it needs to receive according to its own choice. In this way, different audio programs are played on different audio receiving devices, and the audio playback terminal can simultaneously play multiple audios. Features.

Optionally, after the audio receiving device receives the audio channel index table step sent by the audio playback terminal, it also includes:

When the received audio channel index table is updated, replace the old audio channel index table with the new audio channel index table.

By timely detecting whether the audio channel index table has changed, the correct audio that can be selected and received by the audio receiving device is obtained for reception, and the old audio channel index table is replaced by updating the audio channel index table, so that it will not be selected when selecting There is no audio of the program, or the audio of the latest program cannot be selected. After receiving the new audio channel index table, the audio receiving device replaces the original audio channel index table with the new audio channel index table, so that the audio channel index table is always Correct up-to-date audio channel index table.

Optionally, before the audio receiving device parses the audio frame and performs the playing step, it also includes:

Verify that the audio index in the audio frame is the same as the audio index that needs to be received. If the audio index is consistent with the information selected by the user through the audio index table or the audio index stored by default in the audio receiving device, the verification is passed, and the audio can be parsed at this time Frame and play, if the verification results are different, that is, the verification fails, and normal playback cannot be performed at this time. In this way, the selected audio is the audio that the user needs.

The present invention also provides an audio playback terminal and an audio receiving device. As shown in FIG. 3 , the audio playback terminal 31 and the audio receiving device 32 form a multi-channel audio processing system, wherein the audio playback terminal 31 includes:

The data encapsulation unit 311 is used for the audio playback terminal to establish an audio and audio channel index table, and encapsulates each channel of audio and the audio index used to identify the channel of audio into an audio frame, and then encapsulates multiple audio frames into a data frame;

The first wireless function connection unit 312 is used to establish a wireless connection between the audio playback terminal 31 and the audio receiving device 32;

The index table sending unit 313 is used for the audio playback terminal 31 to send the audio channel index table to the audio receiving device 32;

The information sending unit 314 is used for the audio playing terminal 31 to send the data frame to the audio receiving device 32 .

Audio receiving device 32 comprises:

The second wireless function connection unit 322 is used to establish a wireless connection between the audio receiving device 32 and the audio playback terminal 31;

The index table receiving unit 323 is used for the audio receiving device 32 to receive the audio channel index table sent by the audio playback terminal 31;

The data frame receiving unit 324 is used for the audio receiving device 32 to determine the audio index to be received, receive and analyze the data frame to obtain the audio frame corresponding to the audio index to be received;

The playback unit 321 is used for the audio receiving device 32 to parse the audio frame and play it

The audio playback terminal 31 establishes an audio channel index table between the multi-channel audio being played and the audio channel through the data encapsulation unit 311, and then encapsulates the multi-channel audio into a data frame according to a predetermined encapsulation protocol, and passes through the first wireless function connection unit 312 establishes a wireless connection with the second wireless function connection unit 322 of the audio receiving device 32, and sends the data frame to the audio receiving device 32 through the information sending unit 313, thereby realizing that while the audio playback terminal 31 is playing multiple audio channels, multiple audio The receiving device 32 is capable of selectively viewing and listening. The audio receiving device 32 establishes a wireless connection with the audio playback terminal 31 through the second wireless function connection unit 322, and receives the audio playback terminal 31 through the index table sending unit 313 and the information sending unit through the index table receiving unit 323 and the data frame receiving unit 324 respectively. The audio channel index table and the data frame sent by 314, because the audio receiving device 32 receives the audio index table and the data frame are separated, the audio index table includes the identifier of the multi-channel audio and the audio channel identifier corresponding to the multi-channel audio identifier, The audio playback terminal 31 determines the audio index corresponding to the audio that needs to be received, which can be the audio identifier selected by the user, or the audio channel identifier stored by the audio receiving device 32 by default, and then receives the following in the data frame through the data frame receiving unit 324. The audio frame corresponding to the audio index is parsed and played by the playback unit 321, so that the received audio frames are all audio information of a fixed program.

Optionally, the audio playback terminal 31 also includes:

The index table update unit is used to judge that when the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the updated multi-channel audio The identifier of the audio channel to which the identifier corresponds.

Optionally, the index table sending unit 313 is specifically:

It is used to determine whether a new audio receiving device has established a wireless connection with the audio playback terminal, and when a new audio receiving device has established a wireless connection with the audio playback terminal, the audio channel index table is sent to the newly added audio receiving device.

Optionally, the audio receiving device 32 also includes:

The index table updating unit is configured to replace the old audio channel index table with a new audio channel index table when the received audio channel index table is updated.

Optionally, the audio receiving device 32 also includes:

The index verification unit is used to verify whether the audio index in the audio frame is the same as the audio index that needs to be received. If the audio index in the audio frame is consistent with the audio index selected by the user or the audio index stored by the audio receiving device by default, the verification is passed. At this time, the corresponding audio frame can be parsed and played. If the verification result is different, that is, the verification fails, and normal playback cannot be performed at this time. This method ensures that the selected audio is the audio that the user needs.

Through the above-mentioned audio playback terminal and audio receiving device, the audio playback terminal can output multiple audio programs at the same time, and output the audio programs wirelessly. The audio receiving terminal receives the audio frame and the audio channel index table sent by the audio playback terminal, and then passes Analysis and other operations are performed, and the audio receiving terminal selects the audio program it needs to receive. In this way, the audio playing terminal can play multiple channels of audio at the same time, and the audio receiving devices each receive the audio they need according to their own needs. Realize simultaneous playback and listening of multiple channels of audio.

Embodiment two:

Fig. 4 shows the implementation flowchart of Embodiment 2 of an audio playback terminal of a multi-channel audio processing method provided by the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

S401. The audio playback terminal creates an audio channel index table, encapsulates each channel of audio and an audio index used to identify the channel of audio into an audio frame, and then encapsulates multiple channels of audio frames into a data frame.

Because the audio playback terminal needs to play multiple channels of audio at the same time, it is necessary to distinguish multiple channels of audio so that the audio channels will not be confused. Therefore, an audio channel index table is established for multiple channels of audio. The audio channel index table includes multiple channels of audio The identifier and the audio channel identifier corresponding to the multi-channel audio identifier are used to distinguish and identify different audio through the audio index table. The audio index includes the audio identifier or/and the audio channel identifier corresponding to the audio identifier. By identifying the audio The audio channel identifier corresponding to the identifier index and/or the audio identifier is encapsulated in the audio frame to confirm that the received audio is the audio selected by the user to receive.

S402. When the multi-channel audio being played changes, update the audio channel index table.

When multiple channels of audio are played at the same time, it is inevitable that some audio programs will increase or some audio programs will decrease. For the increase or decrease of audio programs, it is necessary to update the audio channel index table in time so that the channels can be used in time. At the same time, the audio program adjustment information is also reflected in the audio channel index table to notify the audio receiving device that the audio program has changed, and whether the audio channel corresponding to the changed audio has changed, and the audio receiving device will subsequently select the audio to be received. There will be no confusion when receiving audio by switching audio channels.

S403, the audio playback terminal establishes a wireless connection with the audio receiving device.

The audio playback terminal establishes a wireless connection with the audio receiving device. Since the multi-channel audio is sent to the audio receiving device through a wireless connection, the audio receiving device and the audio playback terminal must first establish a wireless connection to communicate. Send the audio frame and the audio channel index table to the audio receiving device. The specific process of establishing a connection between the audio receiving device and the audio playback terminal can be: the audio receiving device actively scans the network where the audio receiving device is located, and detects whether there is a new audio receiving device Establish a connection, or when the audio receiving device needs to receive the audio being played by the audio receiving device, actively establish a connection with the audio receiving device, that is, both ends of the audio receiving device and the audio receiving device can actively establish a connection with the other end.

S404. Determine whether a new audio receiving device has established a wireless connection with the audio playback terminal, and when a new audio receiving device has established a wireless connection with the audio playback terminal, send an audio channel index table to the new audio receiving device.

After the audio receiving device establishes a wireless connection with the audio playback terminal, the wireless connection between them may change, that is, adding or reducing the audio receiving device will not have an impact when there is a reduction in the audio receiving device, but when there is a new audio After the receiving device establishes a connection, if the audio channel index table is not obtained, the program cannot be selected. At this time, the audio channel index table needs to be sent to the newly added audio receiving device through the audio playback terminal. If there is no newly added audio receiving device, execute S405, wherein when the audio player terminal starts up for the first time and establishes a wireless connection with the audio receiving device, it also belongs to a new audio receiving device establishing a wireless connection with the audio player terminal, so it is necessary to send an audio channel index table to all audio receivers connected to the audio player terminal device.

S405, the audio playing terminal sends the data frame to the audio receiving device.

The audio playback terminal sends the data frame to the audio receiving device, and the multi-channel audio is sent in the form of a data frame, and all audio information is included in the content of the data frame sent externally, and the content included in the audio frame is: the content of the audio frame Frame header mark, audio index, audio data content, audio data size and frame end mark of audio frame. The audio index includes an audio identifier and/or an audio channel identifier, where the audio index can also be used to verify whether the audio index in the audio frame is the same as the audio index that needs to be received, and the audio channel index table is only updated when there is an update and sent when a new audio receiving device is connected.

Fig. 5 is an implementation flow chart of Embodiment 2 of an audio receiving device of a multi-channel audio processing method provided by the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

S501. The audio receiving device establishes a wireless connection with the audio playing terminal.

The audio receiving device establishes a wireless connection with the audio playing terminal. The ways of establishing the connection between the audio receiving device and the audio playing terminal include: the audio receiving device actively establishes a connection with the audio playing terminal, and the audio playing terminal actively establishes a connection with the audio receiving device.

S502. The audio receiving device receives the audio channel index table sent by the audio playing terminal.

The audio receiving device receives the audio channel index table sent by the audio playback terminal. The audio channel index table includes multi-channel audio identifiers and audio channel identifiers corresponding to the multi-channel audio identifiers. The audio receiving device selects the audio channel index table that it needs to receive. audio.

S503, judging whether the received audio index table is updated. If yes, execute S504; if not, execute S505.

S504, replace the old audio channel index table with the new audio channel index table.

When it is judged that the audio channel index table in the received audio frame is updated, the previously received audio channel index table is replaced by the new audio channel index table.

S505, the audio receiving device determines the audio index to be received, receives and parses the data frame to obtain the audio frame corresponding to the audio index to be received.

Through the information in the audio channel index table, the user can obtain the audio being played and the channels where the audio is located, and determine the audio channel identifier selected by the user or the default audio channel identifier of the audio receiving device. The audio index, because the audio is identified by the identifier in the audio channel index table, and the audio is also selected by the audio identifier when selecting the audio. Or obtain the corresponding audio channel identifier through the audio identifier, then parse the data frame to obtain the audio frame, and compare the required audio identifier or audio channel identifier with the audio identifier or audio channel identifier in the audio frame, Get the desired audio frame.

S506, verify whether the audio index in the audio frame is the same as the audio index to be received, if they are the same, execute S507, otherwise return to execute S505.

After receiving the data frame, by verifying the audio index in the audio frame, verify whether the received audio index is the audio index selected by the user to receive or the audio receiving device default setting, if not, then do not play, re-execute S505, receive And analyze the data frame to obtain the audio frame corresponding to the required received audio index; if yes, execute S507. In this way, it is ensured that the played audio is the audio selected by the user or the default audio to be played by the audio receiving device.

S507, the audio receiving device parses and plays the audio frame.

The audio receiving device parses the received audio frame, acquires the audio data in the audio frame, and parses the audio in the played audio frame.

Through this selection method of the audio receiving device, the audio received by the audio receiving device is the audio that the user needs to receive, and other audio information does not need to be received. When the audio needs to be switched, the user can select the up and down keys (refer to Audio index table to adjust the value of the audio identifier up/down) or number keys (the audio receiving device refers to the audio channel identifier in the audio index table to adjust the value of the audio identifier) to determine the audio to be received, by comparing The audio channel identifier or audio identifier in the audio frame obtains the desired audio, which is convenient for the user to switch between different audio channels.

FIG. 6 is a structural diagram of Embodiment 2 of an audio playback terminal provided by the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

The data encapsulation unit 61 is used for the audio playback terminal to establish an audio channel index table, each channel of audio and the audio index used to identify the channel of audio are packaged into an audio frame together, and multiple channels of audio frames are packaged into a data frame;

The first wireless function connection unit 62 is used to establish a wireless connection between the audio playback terminal and the audio receiving device;

The information sending unit 63 is used for the audio playback terminal to send the data frame to the audio receiving device;

Index table update unit 64, for judging that when the multi-channel audio being played changes, update the audio channel index table, the updated audio channel index table includes the identifier of the updated multi-channel audio and the updated multi-channel audio The identifier of the corresponding audio channel identifier.

The index table sending unit 65 is used to judge whether there is a new audio receiving device to establish a wireless connection with the audio playback terminal, and when a new audio receiving device establishes a wireless connection with the audio playback terminal, send the audio channel index table to the new audio receiving device .

Fig. 7 is a structural diagram of Embodiment 2 of an audio receiving device provided by the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

The second wireless function connection unit 71 is used for establishing a wireless connection between the audio receiving device and the audio playback terminal;

The index table receiving unit 72 is used for the audio receiving device to receive the audio channel index table sent by the audio playback terminal;

The data frame receiving unit 73 is used for the audio receiving device to determine the audio index to be received, receive and analyze the data frame to obtain the audio frame corresponding to the audio index required for determination;

The playback unit 74 is used for the audio receiving device to parse the audio frame and play it;

The index table update unit 75 is used to replace the old audio channel index table with a new audio channel index table when the received audio channel index table is updated;

The index verification unit 76 is configured to verify whether the audio index in the audio frame is the same as the audio index determined to be received. If the audio index in the audio frame is consistent with the audio identifier selected by the user or the audio channel identifier stored by the audio receiving device by default, the verification is passed. At this time, the corresponding audio frame can be parsed and played. If the verification result is different, that is If the verification fails, normal playback cannot be performed at this time. In this way, the selected audio is the audio that the user needs.

It should be noted that the audio receiving device can be a smart phone, a device with a wireless data receiving function and a speaker, or an audio receiving device with a wireless data receiving function and an earphone jack.

The embodiment of the present invention solves the problem of simultaneously playing multiple audios on the audio receiving device through a method for playing TV audio, an audio playing terminal, and an audio receiving device, so that the audios are played simultaneously without interfering with each other. And can watch and listen at the same time, and can provide audio of different language versions of a currently playing TV program to the audio receiving device, the background background music of the audio playback terminal and other audio that can be played by the audio receiving device, enriching the audio receiving device Simultaneously played audio, the present invention is suitable for smart TVs, DVDs and other audio playback devices, by simultaneously playing multiple audio channels, it solves the problem that these devices cannot play multiple audio channels at the same time, and the audio receiving device receives audio according to its own needs Receive the audio that you need to receive, and the steps and methods of switching audio are the same as when selecting a new audio program. Through the above method, the user can choose to receive the audio of different language versions on the same TV program or multiple programs that are being played The audio that you need to listen to, and switch to audio programs such as background music to listen to.

Those of ordinary skill in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage Media such as ROM/RAM, magnetic disk, optical disk, etc.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A multi-channel audio processing method, characterized in that said method comprises the steps of: The audio playback terminal creates an audio channel index table, the audio channel index table includes audio identifiers of multiple channels of audio and the audio channel identifiers corresponding to each audio identifier, and each channel of audio and the audio index used to identify the channel of audio Encapsulate into an audio frame, and then encapsulate the multi-channel audio frame into a data frame; The audio playback terminal establishes a wireless connection with the audio receiving device; The audio playback terminal sends the audio channel index table to the audio receiving device, so that the audio receiving device determines the audio index to be received according to the audio channel index table; The audio playing terminal sends the data frame to the audio receiving device. 2. The method according to claim 1, wherein the audio index comprises: an audio identifier and/or an audio channel identifier. 3. The method according to claim 1, characterized in that, the method also includes after the audio playback terminal sets up the audio channel index table step: When the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the identification of the audio channel corresponding to the identifier of the updated multi-channel audio symbol. 4. The method according to claim 1, wherein in the method, the audio playback terminal sends the audio channel index table to the audio receiving device and specifically includes: It is judged whether there is a new audio receiving device to establish a wireless connection with the audio playback terminal, and when a new audio receiving device establishes a wireless connection with the audio playback terminal, the audio channel index table is sent to the new audio receiving device. 5. A multi-channel audio processing method, characterized in that said method comprises the steps of: The audio receiving device establishes a wireless connection with the audio playback terminal; The audio receiving device receives the audio channel index table sent by the audio playback terminal; The audio receiving device determines the audio index to be received according to the audio channel index table, receives and parses the data frame to obtain an audio frame corresponding to the audio index to be received, and the audio frame includes a channel of audio and an audio index for identifying the channel of audio; The audio receiving device parses the audio frame and plays it. 6. The method according to claim 5, characterized in that, after the audio receiving device receives the audio channel index table step that the audio playback terminal sends: When the received audio channel index table is updated, replace the old audio channel index table with the new audio channel index table. 7. The method according to claim 5, characterized in that, before the audio receiving device parses the audio frame and plays it, the method also includes: Verify that the audio index in the data frame is the same as the audio that needs to be received. 8. An audio playback terminal, characterized in that, the audio playback terminal comprises: The data encapsulation unit is used for the audio playback terminal to establish an audio channel index table, encapsulates each channel of audio and the audio index used to identify the channel of audio into an audio frame, and then encapsulates multiple channels of audio frames into a data frame; The first wireless functional connection unit is used for establishing a wireless connection between the audio playback terminal and the audio receiving device; The index table sending unit is used for the audio playback terminal to send the audio channel index table to the audio receiving device, so that the audio receiving device determines the audio index to be received according to the audio channel index table; The information sending unit is used for the audio playing terminal to send the data frame to the audio receiving device. 9. audio playback terminal as claimed in claim 8, is characterized in that, described audio playback terminal also comprises: The index table update unit is used to judge that when the multi-channel audio being played changes, the audio channel index table is updated, and the updated audio channel index table includes the identifier of the updated multi-channel audio and the updated multi-channel audio The identifier of the audio channel to which the identifier corresponds. 10. An audio receiving device, characterized in that the audio receiving device comprises: The second wireless functional connection unit is used for establishing a wireless connection between the audio receiving device and the audio playback terminal; The index table receiving unit is used for the audio receiving device to receive the audio channel index table sent by the audio playback terminal; The data frame receiving unit is used for the audio receiving device to determine the audio index to be received according to the audio channel index table, receive and analyze the data frame to obtain the audio frame corresponding to the audio index to be received, and the audio frame includes a channel of audio and is used to identify the channel the audio index of the audio; The playing unit is used for the audio receiving device to analyze and play the audio frame.