CN110366752A - A kind of voice frequency dividing transmission method, plays end, source circuit and plays terminal circuit source - Google Patents

A kind of voice frequency dividing transmission method, plays end, source circuit and plays terminal circuit source Download PDF

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Publication number
CN110366752A
CN110366752A CN201980000976.XA CN201980000976A CN110366752A CN 110366752 A CN110366752 A CN 110366752A CN 201980000976 A CN201980000976 A CN 201980000976A CN 110366752 A CN110366752 A CN 110366752A
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China
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speech signal
frequency band
source
band speech
link
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CN201980000976.XA
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CN110366752B (en
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郭仕林
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Huiding Technology Co Ltd
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

Abstract

This application involves the communications field more particularly to a kind of voice frequency dividing transmission method, source, plays end, source circuit and play terminal circuit；A kind of voice frequency dividing transmission method includes: that source encodes the first frequency band speech signal and the second frequency band speech signal；In the second frequency band speech signal after the first frequency band speech signal and coding that frame synchronization information is tagged to after encoding by source；Source sends the first frequency band speech signal after the coding with frame synchronization information by the first synchronization link and the second synchronization link respectively and the second frequency band speech signal after the coding with frame synchronization information gives broadcasting end.The application sends the first frequency band speech signal after the coding with frame synchronization information and the second frequency band speech signal after the coding with frame synchronization information by the first synchronization link and the second synchronization link to end is played respectively, solves the problems, such as the problem of influencing audio being played on when limiting the decline of bring sound quality and improvement sound quality due to transmission bandwidth.

Description

A kind of voice frequency dividing transmission method, plays end, source circuit and plays end source Circuit
Technical field
This application involves the communications field more particularly to a kind of voice frequency dividing transmission method, source, play end, source circuit With broadcasting terminal circuit.
Background technique
In wireless audio frequency transmission function, since transmission bandwidth limits, while taking into account continuation of the journey and bandwidth, it will usually using super The lossy coding of high compression rate is transmitted, and exchanges longer cruise duration for as cost to sacrifice sound quality.Common lossy coding, Such as: AAC (Advanced Audio Coding, Advanced Audio Coding) coding mode, SBC (Sub-bandcoding, subband Coding) (Moving Picture Experts Group Audio Layer III, dynamic image are special by coding mode or MP3 Family's compression standard audio level 3) coding mode etc., it will usually high frequency section is directly given up, to save bandwidth, but is connect in this way When receiving the data after encoding, since high frequency section is lost, it is unable to get initial voice signal, so that it cannot mentioning for user It is experienced for better sound quality, in addition, generally requiring and being carried out to the synchronization link when using a synchronization link transmission of speech signals Operation is to achieve the purpose that improve sound quality, but this mode often has an impact audio being played on, for example, user It can hear that break in short-term occurs in audio being played on.
Summary of the invention
Aiming at the problem that when wireless audio frequency transmission function in the prior art due to transmission bandwidth limitation bring sound quality decline and change The problem of influencing audio being played on when kind sound quality, this application provides a kind of voices to divide transmission method, source, broadcasting End, source circuit and broadcasting terminal circuit.
The first aspect of embodiments herein provides a kind of voice frequency dividing transmission method, comprising:
Source encodes the first frequency band speech signal and the second frequency band speech signal；Source marks frame synchronization information In the second frequency band speech signal after the first frequency band speech signal and coding after to coding；Source by the first synchronization link and Second synchronization link sends the first frequency band speech signal after the coding with frame synchronization information and respectively with frame synchronization information Coding after the second frequency band speech signal to play end.
In addition, with reference to first aspect, in a kind of implementation of first aspect, comprising: the second frequency band speech signal The compression ratio of coding mode is higher than the compression ratio of the coding mode of the first frequency band speech signal；Or second frequency band speech signal Compression ratio of the compression ratio of coding mode lower than the coding mode of the first frequency band speech signal.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, source pair Second frequency band speech signal carries out coding
Source encodes High frequency speech signal, and source includes CELT coding staff to the coding mode of High frequency speech signal Formula or SBR coding mode；Or
Source encodes non-High frequency speech signal, and source includes that SILK is compiled to the coding mode of non-High frequency speech signal Code mode, SBC coding mode, AAC coding mode or MP3 coding mode.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, source will Frame synchronization information is tagged in the first frequency band speech signal after encoding and the second frequency band speech signal after coding
The voice signal of any frequency range after the coding detected in the default delay of source label is a frame data, frame synchronization Information include a frame data at the beginning of and finish time.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, source is logical Cross the second synchronization link send with frame synchronization information coding after the second frequency band speech signal to play end before, comprising:
The link parameter used is determined according to the link parameter that the broadcasting end that end is sent is supported is played；
Source establishes and plays the second synchronization link between end according to the link parameter used.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, according to broadcasting It puts before holding the link parameter of the broadcasting end sent support to determine the link parameter used, comprising:
Source sends the second synchronization link and requests to give broadcasting end；
Source receives the reply of the second synchronization link request；
Source determines whether to establish the second synchronization link according to the reply that the second synchronization link is requested.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, source pair Before second frequency band speech signal is encoded, further includes:
Source judges to play whether end supports voice frequency dividing transmission according to control data flow, controls data flow and pass through asynchronous chain Road transmission.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, if source Defeated service is kept pouring in by customized Universally Unique Identifier (UUID) logos cent, source is played according to control data flow judgement Whether support that voice frequency dividing transmission includes: in end
Control data flow includes the value of customized UUID, if the value of the customized UUID at the broadcasting end that source receives is equal to Default UUID value, source determine that playing end supports voice frequency dividing transmission.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, if source Determine that voice frequency dividing transmission is supported at broadcasting end according to control data flow, source sends audio configuration parameter request and gives broadcasting end；
Source, which receives, plays the corresponding audio configuration parameter of the second frequency band speech signal that end is supported, audio configuration parameter packet Include codec parameters and code rate, codec parameters include that coding mode and decoding process are one such or two kinds；
Source determines the audio used according to the corresponding audio configuration parameter of the second frequency band speech signal that end is supported is played The audio configuration parameter used is simultaneously sent to broadcasting end by configuration parameter.
In addition, with reference to first aspect and its above-mentioned implementation, in another implementation of first aspect, second is same The item number for walking link is less than or equal to the band number of the second frequency band speech signal；
Source disconnects the one or more the second synchronization links according to the link-quality of charge condition or the second synchronization link； Or
Source establishes the one or more the second synchronization links according to the link-quality of charge condition or the second synchronization link.
The second aspect of embodiments herein provides a kind of voice frequency dividing transmission method, comprising:
After broadcasting end receives the coding with frame synchronization information by the first synchronization link and the second synchronization link respectively The second frequency band speech signal after first frequency band speech signal and coding with frame synchronization information；
End is played to be decoded the first frequency band speech signal and the second frequency band speech signal that receive；
End is played by frame synchronization information to decoded first frequency band speech signal and decoded second frequency band speech Signal synchronizes.
In addition, in a kind of implementation of second aspect, playing end by frame synchronization information to solution in conjunction with second aspect After the first frequency band speech signal and decoded second frequency band speech signal after code synchronize, comprising:
Play end to after synchronizing the first frequency band speech signal and it is synchronous after the second frequency band speech signal pass through one or Multiple and different digital analog converters carries out digital-to-analogue conversion respectively；
The first frequency band speech signal after playing the conversion of end logarithmic mode and the second frequency band speech signal after digital-to-analogue conversion are logical One or more different amplifiers are crossed to amplify respectively；
Play end to amplified first frequency band speech signal and amplified second frequency band speech signal by one or Multiple and different electroacoustic transducers carries out electroacoustic conversion respectively.
In addition, in another implementation of second aspect, playing end in conjunction with second aspect and its above-mentioned implementation Include: before the second frequency band speech signal after receiving the coding with frame synchronization information by the second synchronization link
It plays end and sends control data flow to source, so that source judges to play whether end supports language according to control data flow Cent keeps pouring in defeated.
In addition, in conjunction with second aspect and its above-mentioned implementation, in another implementation of second aspect, if source It determines that playing end supports voice frequency dividing transmission according to control data flow, plays end and receive the second synchronization link request that source is sent And send the reply of the second synchronization link request；
It supports voice to divide transmission if playing end, plays end and send the link parameter for playing end support to source.
In addition, in another implementation of second aspect, playing end in conjunction with second aspect and its above-mentioned implementation Before the second synchronization link request for receiving source transmission, comprising:
It plays end and receives the audio configuration parameter request that source is sent；
It plays end and sends the corresponding audio configuration parameter of the second frequency band speech signal for playing end support to source；
End is played to receive the audio configuration parameter of source transmission used and configure the audio configuration parameter used.
In addition, in another implementation of second aspect, playing end in conjunction with second aspect and its above-mentioned implementation The one or more the second synchronization links are disconnected according to the link-quality of charge condition or the second synchronization link；Or
It plays end and establishes one or more the according to the link quality requests source of charge condition or the second synchronization link Two synchronization links.
The third aspect of embodiments herein provides a kind of source, and for voice frequency dividing transmission, source includes:
Coding module, for being encoded to the first frequency band speech signal and the second frequency band speech signal；
Presynchronization module, for being tagged to frame synchronization information after the first frequency band speech signal and coding after coding In two frequency band speech signals；And
First sending module, for being sent respectively by the first synchronization link and the second synchronization link with frame synchronization information Coding after the first frequency band speech signal and the second frequency band speech signal after coding with frame synchronization information to playing end.
In addition, in conjunction with the third aspect, in a kind of implementation of the third aspect, the coding staff of the second frequency band speech signal The compression ratio of formula is higher than the compression ratio of the coding mode of the first frequency band speech signal；Or
Pressure of the compression ratio of the coding mode of second frequency band speech signal lower than the coding mode of the first frequency band speech signal Shrinkage.
In addition, in another implementation of the third aspect, encoding mould in conjunction with the third aspect and its above-mentioned implementation Block includes:
High-frequency coding module, for encoding to High frequency speech signal, the coding mode to High frequency speech signal includes CELT coding mode or SBR coding mode；Or
Non- high-frequency coding module, for being encoded to non-High frequency speech signal, to the coding staff of non-High frequency speech signal Formula includes SILK coding mode, SBC coding mode, AAC coding mode or MP3 coding mode.
In addition, in conjunction with the third aspect and its above-mentioned implementation, in another implementation of the third aspect, presynchronization Module includes:
Data frame mark module, for marking the voice signal of any frequency range after the coding detected in default delay to be One frame data, frame synchronization information include a frame data at the beginning of and finish time.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Include:
First parameter determination module, the first sending module send the coding for having frame synchronization information by the second synchronization link To before playing end, the link parameter for being supported according to the broadcasting end for playing end transmission determines the second frequency band speech signal afterwards The link parameter used；
Link establishment module, for establishing and playing the second synchronization link between end according to the link parameter used.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Include:
Second sending module, the first parameter determination module are determined according to the link parameter that end is supported that plays that end is sent is played Before the link parameter used, request to give broadcasting end for sending the second synchronization link；And
First receiving module, for receiving the reply of the second synchronization link request；
First parameter determination module is also used to be determined whether according to the reply that the second synchronization link is requested to establish second synchronous Link.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Include:
First judgment module, before coding module encodes the second frequency band speech signal, for according to control data Stream judges to play whether end supports voice frequency dividing transmission, controls data flow and transmitted by async link.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Including UUID module, for keeping pouring in defeated service by customized Universally Unique Identifier (UUID) logos cent；
First judgment module includes:
Second judgment module, control data flow include the value of customized UUID, if the broadcasting end received is customized The value of UUID is equal to default UUID value, for determining that playing end supports voice frequency dividing transmission.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Include:
Third sending module: if first judgment module determines that playing end supports voice frequency dividing transmission according to control data flow, Broadcasting end is given for sending audio configuration parameter request；
Second receiving module: for receiving the corresponding audio configuration parameter of the second frequency band speech signal for playing end and supporting, Audio configuration parameter includes codec parameters and code rate, and codec parameters include one of coding mode and decoding process or two Kind；And
Second parameter determination module, for being joined according to the corresponding audio configuration of the second frequency band speech signal for playing end support Number determines the audio configuration parameter used；
The audio configuration parameter that third sending module is also used to use, which is sent to, plays end.
In addition, in another implementation of the third aspect, source is also in conjunction with the third aspect and its above-mentioned implementation Include:
First transmission control module, for according to the link-quality of charge condition or the second synchronization link disconnect one or A plurality of second synchronization link, the item number of the second synchronization link are less than or equal to the band number of the second frequency band speech signal；Or
First transmission control module is also used to establish one according to the link-quality of charge condition or the second synchronization link Or a plurality of second synchronization link, the item number of the second synchronization link are less than or equal to the band number of the second frequency band speech signal.
The fourth aspect of embodiments herein provides a kind of broadcasting end, and for voice frequency dividing transmission, playing end includes:
Third receiving module, for being received respectively by the first synchronization link and the second synchronization link with frame synchronization information Coding after the first frequency band speech signal and the second frequency band speech signal after coding with frame synchronization information；
Decoder module, for the second frequency band speech after the first frequency band speech signal and coding after the coding received Signal is decoded；
Synchronization module, for passing through frame synchronization information to decoded first frequency band speech signal and decoded second frequency Section voice signal synchronizes.
In addition, in a kind of implementation of fourth aspect, playing end in conjunction with fourth aspect further include:
One or more different D/A converter modules, for the first frequency band speech signal and the second frequency range after synchronizing Voice signal carries out digital-to-analogue conversion respectively；
One or more different amplification modules, for the first frequency band speech signal and the second frequency range after logarithmic mode conversion Voice signal amplifies respectively；And
One or more different electroacoustic conversion modules, for amplified first frequency band speech signal and the second frequency range Voice signal carries out electroacoustic conversion respectively.
In addition, in another implementation of fourth aspect, playing end in conjunction with fourth aspect and its above-mentioned implementation Further include:
4th sending module, after third receiving module receives the coding with frame synchronization information by the second synchronization link Before second frequency band speech signal, for sending control data flow to source, so that source is played according to control data flow judgement Whether voice frequency dividing transmission is supported in end.
In addition, in another implementation of fourth aspect, playing end in conjunction with fourth aspect and its above-mentioned implementation Further include:
4th receiving module, if source determines that playing end supports voice frequency dividing transmission according to control data flow, for receiving The second synchronization link request that source is sent；And
5th sending module, for sending the reply of the second synchronization link request；
If play end support voice frequency dividing transmission, the 5th sending module be also used to send play end support link parameter to Source.
In addition, in another implementation of fourth aspect, playing end in conjunction with fourth aspect and its above-mentioned implementation Further include:
5th receiving module, before the 4th receiving module receives the second synchronization link request that source is sent, for receiving The audio configuration parameter request that source is sent；
6th sending module, for send play end support the corresponding audio configuration parameter of the second frequency band speech signal to Source；
5th receiving module is also used to receive the audio configuration parameter of source transmission used；And
Parameter configuration module, for configuring the audio configuration parameter used.
In addition, in another implementation of fourth aspect, playing end in conjunction with fourth aspect and its above-mentioned implementation Further include:
Second transmission control module, for according to the link-quality of charge condition or the second synchronization link disconnect one or A plurality of second synchronization link；Or
Second transmission control module is also used to the link quality requests source according to charge condition or the second synchronization link Establish the one or more the second synchronization links.
Embodiments herein the 5th aspect provide a kind of source, for voice frequency dividing transmission, comprising: memory and Processor；
Memory is coupled with processor；
Memory, for storing program instruction；
Processor, the program instruction for calling memory to store, so that source executes language described in above-mentioned first aspect Cent keeps pouring in transmission method.
6th aspect of embodiments herein provides a kind of broadcasting end, for voice frequency dividing transmission, comprising: memory And processor；
Memory is coupled with processor；
Memory, for storing program instruction；
Processor, the program instruction for calling memory to store execute described in above-mentioned second aspect so that playing end Voice divides transmission method.
7th aspect of embodiments herein provides a kind of computer readable storage medium, comprising: is stored thereon with Computer program realizes that voice described in above-mentioned first aspect divides transmission method when computer program is executed by processor.
The eighth aspect of embodiments herein provides a kind of computer readable storage medium, comprising: is stored thereon with Computer program, which is characterized in that realize that voice described in above-mentioned second aspect divides when computer program is executed by processor Transmission method.
9th aspect of embodiments herein provides a kind of source circuit, comprising:
Encoder, for being encoded to the first frequency band speech signal and the second frequency band speech signal；And
Source controller, connect with encoder, for sending band respectively by the first synchronization link and the second synchronization link The second frequency band speech after the first frequency band speech signal after having the coding of frame synchronization information and the coding with frame synchronization information Signal gives broadcasting terminal circuit.
In addition, in a kind of implementation of the 9th aspect, source circuit further includes filter, filter in conjunction with the 9th aspect Wave device is connect with encoder, for separating the first frequency band speech signal and the second frequency band speech signal.
Tenth aspect of embodiments herein provides a kind of broadcasting terminal circuit, comprising:
Side controller is played, for being received respectively by the first synchronization link and the second synchronization link with frame synchronization information Coding after the first frequency band speech signal and the second frequency band speech signal after coding with frame synchronization information；And
Decoder is connect, for the first frequency band speech signal received and the second frequency range language with side controller is played Sound signal is decoded.
In addition, in a kind of implementation of the tenth aspect, playing terminal circuit in conjunction with the tenth aspect further include:
One or more different digital analog converters, connect with decoder respectively, for decoded first frequency range language Sound signal and decoded second frequency band speech signal carry out digital-to-analogue conversion respectively；
One or more different amplifiers, connect with one or more digital analog converters respectively, convert for logarithmic mode The second frequency band speech signal after rear the first frequency band speech signal and digital-to-analogue conversion amplifies respectively；And
One or more different electroacoustic transducers, connect with one or more amplifiers respectively, for amplified First frequency band speech signal and amplified second frequency band speech signal carry out electroacoustic conversion respectively.
Compared with prior art, the beneficial effect of the embodiment of the present application is: the embodiment of the present application provides a kind of voice Transmission method, source are divided, end, source circuit are played and plays terminal circuit, passes through the first synchronization link and the second synchronization link The after the first frequency band speech signal after sending the coding with frame synchronization information respectively and coding with frame synchronization information Two frequency band speech signals are to end is played, when solving the problems, such as to limit the decline of bring sound quality due to transmission bandwidth and improve sound quality The problem of influencing audio being played on.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those skilled in the art without any creative labor, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is that a kind of voice of the embodiment of the present application divides the flow chart of transmission method；
Fig. 2 is that the source label of the embodiment of the present application presets the voice letter of any frequency range after the coding detected in delay Number be a frame data flow chart；
Fig. 3 is that the source of the embodiment of the present application obtains frame synchronization information and plays the schematic diagram that end synchronizes；
Fig. 4 is the set-up mode schematic diagram of the UUID of the embodiment of the present application.
Fig. 5 is that another voice of the embodiment of the present application divides the flow chart of transmission method；
Fig. 6 is the structural schematic diagram of the source of the embodiment of the present application；
Fig. 7 is the structural schematic diagram at the broadcasting end of the embodiment of the present application；
Fig. 8 is the structural schematic diagram of another source of the embodiment of the present application；
Fig. 9 is another structural schematic diagram for playing end of the embodiment of the present application；
Figure 10 is the source circuit of the embodiment of the present application and the structural schematic diagram for playing terminal circuit；
Figure 11 is another source circuit of the embodiment of the present application and the structural schematic diagram for playing terminal circuit.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the part of the application Embodiment is explained in detail using example way.However, it will be understood by those skilled in the art that in each example In, in order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and Based on the various changes and modifications of following embodiment, the application technical solution claimed also may be implemented.
The embodiment of the present application provides a kind of voice frequency dividing transmission method, and this method can be applied to various audio electronics and set In standby.The present embodiment is illustrated a kind of voice frequency dividing transmission method provided by the embodiments of the present application from the angle of source.Source End is the transmitting terminal of voice signal, plays the receiving end that end is voice signal, in general, source can be store voice signal The electronic equipments such as mobile phone, TV, computer, plate or mp3 or the electronic equipment in one or more chips, playing end can be with It is the one or more chips played in the electronic equipments such as loudspeaker or the earphone of the voice signal or the electronic equipment.This implementation Source in example and play end and can support various transport protocols, for example, low-power consumption bluetooth agreement, classical Bluetooth protocol or Wifi etc., the present embodiment does not limit this.Referring to FIG. 1, Fig. 1 is the stream of the voice frequency dividing transmission method of the embodiment of the present application Cheng Tu, method includes the following steps:
100: source encodes the first frequency band speech signal and the second frequency band speech signal；
In the present embodiment, with no restrictions to the band number of the first frequency band speech signal and the second frequency band speech signal, first Frequency band speech signal or the second frequency band speech signal can be the voice signal or multiple frequency sub-band voice signals of a frequency range. In the present embodiment, with no restrictions to the specific coding mode of source, user can select according to the characteristics of each frequency band speech signal Take corresponding coding mode, in the present embodiment, the first frequency band speech signal and the second frequency band speech signal can be by filtering It arrives, the present embodiment with no restrictions, can be the group of low pass, high pass or bandpass filter and various filters to filter type Close etc.；In the present embodiment, the first frequency band speech signal and the second frequency band speech signal can also pass through its other party other than filtering Formula obtains, for example, not needing to be filtered if coding mode is encoded only for the voice signal of special frequency channel The voice signal of the special frequency channel is obtained, directly the transmitting voice signal of all frequency ranges to encoder can be realized in the frequency range Coding, by taking opus is encoded as an example, the coding to the voice signal of special frequency channel is may be implemented in opus, without pass through filtering Etc. modes obtain the special frequency channel.In general, whole frequency ranges of voice signal are 20Hz-20kHz, first in the present embodiment Frequency band speech signal and the second frequency band speech signal can be any frequency range in 20Hz-20kHz, be also possible to 20Hz-20kHz Except any frequency range.
101: the second frequency range after the first frequency band speech signal and coding that frame synchronization information is tagged to after encoding by source In voice signal；
Since source sends the first frequency band speech letter after encoding by the first synchronization link and the second synchronization link respectively Number and coding after the second frequency band speech signal to play end, therefore, play end need to be implemented synchronization could improve audio matter Frame synchronization information can be tagged to the after coding by amount, and play when end executes synchronous and need frame synchronization information, therefore, source In the second frequency band speech signal after one frequency band speech signal and coding.
102: after source sends the coding with frame synchronization information by the first synchronization link and the second synchronization link respectively The first frequency band speech signal and coding with frame synchronization information after the second frequency band speech signal to playing end.
Synchronization link can be used to transmission of speech signals, and synchronization link is to guarantee that the synchronism of data and real-time only permit Perhaps limited times retransmits, it is assumed that the original audio frequency transmission method of system uses the first synchronization link transmission of speech signals, and the application is implemented Example can be passed through original audio frequency transmission method and be carried out audio biography with the original audio frequency transmission method of completely compatible system, source and broadcasting end When defeated, this programme only needs to send respectively by the first synchronization link and the second synchronization link on this basis to be believed with frame synchronization The first frequency band speech signal and the second frequency band speech signal after the coding of breath will not influence the original audio of system and pass to end is played It is defeated, in the present embodiment, if the second frequency band speech signal is divided into multiple frequency sub-band voice signals, it is same to can establish a plurality of second Step link transmits multiple frequency sub-band voice signal respectively, the present embodiment to the item number of the second synchronization link with no restrictions, can be with It is one either a plurality of, in the present embodiment, source can only establish one and play the second synchronization link between end, and The second frequency band speech signal after sending the coding with frame synchronization information by second synchronization link gives broadcasting end, in addition, If the second frequency band speech signal is divided into multiple frequency sub-band voice signals, can also be transmitted by second synchronization link multiple Frequency sub-band voice signal can be multiple by timesharing when transmitting multiple frequency sub-band voice signal by second synchronization link Mode.In the present embodiment, second synchronization link can be established only to transmit the second frequency band speech signal, if by Two frequency band speech signals are divided into two sub- frequency band speech signals, then can establish one or two the second synchronization links only to transmit The two frequency sub-band voice signals.
Source transmit the after the coding for having frame synchronization information by the first synchronization link and the second synchronization link respectively One frequency band speech signal and the second frequency band speech signal are to end is played, to play end further to the first frequency range language received Sound signal and the second frequency band speech signal are handled.When the original audio frequency transmission method of system is passed using first synchronization link When the voice signal of defeated primary band, for example, when primary band is the voice signal of 20Hz-18kHz, the original audio transmission side of system The voice signal of the first synchronization link transmission 20Hz-18kHz can be used in method, and the voice signal of 18kHz-20kHz is logical Often can directly it give up, to save bandwidth, but this meeting is so that play the high frequency section loss in the voice signal that termination receives, sound Matter decline, therefore, the present embodiment can be broadcast by the voice signal of the 18kHz-20kHz after the second synchronization link transmission coding End is put, can ensure the integrality of voice signal in source, so that the audio signal of all or most frequency range is all compiled It is transmitted after code, to play the role of improving sound quality, it should be noted that the first synchronization link and the second synchronization link can transmit The voice signal of any frequency range, the present embodiment are without limitation.When needing to be improved sound quality, the first synchronization link and are utilized Two synchronization links transmit the first frequency band speech signal and the second frequency band speech signal respectively, if the original audio frequency transmission method of system Using the first frequency band speech signal after the first synchronization link transmission coding, then system only needs to establish the second synchronization link to pass The second frequency band speech signal after defeated coding can play the role of improve sound quality, also, establish the second synchronization link or The first frequency band speech when person transmits the second frequency band speech signal after encoding, after will not influence the first synchronization link transmission coding Signal, therefore, user will not hear that break in short-term occurs in audio being played on.
The embodiment of the present application provides a kind of voice frequency dividing transmission method, passes through the first synchronization link and the second synchronization link The after the first frequency band speech signal after sending the coding with frame synchronization information respectively and coding with frame synchronization information Two frequency band speech signals are to end is played, when solving the problems, such as to limit the decline of bring sound quality due to transmission bandwidth and improve sound quality The problem of influencing audio being played on.
Disclosure based on the above embodiment, in the present embodiment, the compression of the coding mode of the second frequency band speech signal Rate is higher than the compression ratio of the coding mode of the first frequency band speech signal；Or
Pressure of the compression ratio of the coding mode of second frequency band speech signal lower than the coding mode of the first frequency band speech signal Shrinkage.
Voice signal has been divided into the first frequency band speech signal and the second frequency band speech signal, the first frequency band speech signal and The compression ratio of the coding mode of second frequency band speech signal can be different, when voice signal is main with the first frequency band speech signal When part, the compression ratio that the coding mode of the second frequency band speech signal can be set is higher than the coding staff of the first frequency band speech signal The compression ratio of formula, with this, the first frequency band speech signal still remains with most primary speech signal after being compressed, and is playing When end plays out, user experience is not influenced, and for the second frequency band speech signal, although compression ratio is higher, bandwidth is accounted for With less, and since second frequency band speech signal has still been sent to broadcasting end, play end and play second frequency band speech After signal, it still can play the role of improving sound quality, the set-up mode of this compression ratio only increases a small amount of bandwidth occupancy just Better sound quality experience can be provided for user；Similarly, when voice signal with the second frequency band speech signal be main mian part timesharing, The pressure of the compression ratio of the coding mode of the second frequency band speech signal lower than the coding mode of the first frequency band speech signal can be set Shrinkage.
Disclosure based on the above embodiment, in the present embodiment, source carries out coding packet to the second frequency band speech signal Include: source encodes High frequency speech signal or source encodes non-High frequency speech signal.Second frequency band speech letter Number can be High frequency speech signal or non-High frequency speech signal, for High frequency speech signal, since its occupied bandwidth is more, because This, when encoding to High frequency speech signal, can choose the coding mode of suitable High frequency speech signal, to improve the same of sound quality When save fractional bandwidth.Since High frequency speech signal is different with the characteristic of non-High frequency speech signal, High frequency speech is believed Number and non-High frequency speech signal can take different coding modes, for example, the coding of the High frequency speech signal of 18kHz-20kHz Mode may include CELT coding mode or SBR (Spectral Band Replication, frequency range duplication) coding mode, In, CELT coding mode is a kind of core encoder algorithm built-in in opus encoder；The coding mode of non-High frequency speech signal It may include SILK coding mode, SBC coding mode, AAC coding mode or MP3 coding mode, wherein SILK coding mode It is a kind of core encoder algorithm built-in in opus encoder；It should be noted that the present embodiment is with the second frequency band speech signal For High frequency speech signal or non-High frequency speech signal, the second frequency band speech signal can be divided by user according to demand Then other multiple frequency sub-band voice signals are encoded respectively, the present embodiment is without limitation.In the present embodiment, to high frequency High frequency after voice signal or non-High frequency speech signal are encoded respectively, after the second synchronization link transmission coding can be used Voice signal or non-High frequency speech signal.
In the present embodiment, source can be identical to the coding mode of the first frequency band speech signal and the second frequency band speech signal It can also be different, when coding mode difference of the source to the first frequency band speech signal and the second frequency band speech signal, Ke Yi Fractional bandwidth is saved while improving sound quality.The selection of the coding mode of the present embodiment can be diversified, with the second frequency band speech For signal, if the second frequency band speech signal is divided into multiple frequency sub-band voice signals, to multiple frequency sub-band voice signal, Same or different coding mode can be taken.Different coding modes are selected either to set the voice signal of different frequency range Set different code rate or compression ratio, can by adjusting data compression ratio, only increase a small amount of bandwidth occupancy can with for User provides better sound quality experience.
Disclosure based on the above embodiment, in the present embodiment, frame synchronization information is tagged to the after coding by source It include the coding detected in the default delay of source label in the second frequency band speech signal after one frequency band speech signal and coding The voice signal of any frequency range afterwards be a frame data, frame synchronization information include a frame data at the beginning of and finish time.
In order to properly separate each frame data, to guarantee audio quality, sent after the available frame synchronization information of source To end is played, the frame synchronization information is obtained to execute synchronization to play end.
Disclosure based on the above embodiment, in the present embodiment, referring to FIG. 2, Fig. 2 is the source of the embodiment of the present application The voice signal of any frequency range after the coding detected in the default delay of label is the flow chart of a frame data, specifically be can wrap Include following steps:
200: the voice signal of any frequency range in the voice signal of multiple frequency ranges after source-end detection to coding；
201: source starts the delay of timing first until the first delay is equal to default delay；
202: source label first be delayed in the voice signal of multiple frequency ranges that detects be the first frame data；
After 203: the first delays, source detects any frequency range in the voice signal of multiple frequency ranges after coding again Voice signal；
204: source starts the delay of timing second until the second delay is equal to default delay；
205: source label second be delayed in the voice signal of multiple frequency ranges that detects be the second frame data；
After 206: the second delays, source detects any frequency range in the voice signal of multiple frequency ranges after coding again Voice signal；
207: source starts timing N delay until N delay is equal to default delay, N > 2 and be integer；
The voice signal of the multiple frequency ranges detected in 208: source label N delay is n frame data.
It is any after the voice signal of any frequency range after the coding detected in the default delay of source label is a frame data The voice signal of frequency range all contains mark information, therefore broadcasting end can identify same frame voice signal.Source is got The frame synchronization information, frame synchronization information include a frame data at the beginning of and finish time.The value of N can be by user according to language The data volume size of sound signal is arranged, and the present embodiment is without limitation.After the frame synchronization information obtains, source is by the frame Synchronizing information, which is sent to, plays end, and broadcasting end is received the frame synchronization information and can be received using the frame synchronization information to end is played To voice signal synchronize, to further increase audio quality.Can choose by first frame data, the second frame data and It is tagged in a corresponding frame data at the beginning of n frame data with finish time, to play end according to the start time It is synchronized with finish time.
Second synchronization link is only established with source, and second synchronization link is used for transmission the high frequency language after coding For sound signal, it should be noted that in the present embodiment, which can be used for the non-high frequency after transmission coding Voice signal, the present embodiment are without limitation；Fig. 3 (a) indicates source to the first frequency band speech signal and the second frequency band speech The treatment process of signal, as shown in Fig. 3 (a), this embodiment is only with the first frequency band speech signal and the second frequency band speech signal point The volume for being illustrated for only one other frequency sub-band voice signal, but being detected in the default delay of the source of this implementation label The voice signal of any frequency range after code is that the method for a frame data also can be applied to the first frequency band speech signal and the second frequency Section voice signal has the application scenarios of multiple frequency sub-band voice signals respectively.
As shown in Fig. 3 (a), in source, uncoded voice signal is divided according to data frame, by taking first frame as an example It is illustrated, first frame can be divided by High frequency speech signal and non-High frequency speech signal by filter, then to high frequency language Sound signal and non-High frequency speech signal are encoded respectively, are 01DATA1 after encoding to High frequency speech signal, to non-high frequency Voice signal is 01DATA2 after being encoded, and the non-High frequency speech signal 01DATA2 after coding, which passes through the first synchronization link, to be transmitted To end is played, the High frequency speech signal 01DATA1 after coding is transferred to by the second synchronization link plays end.To the second frame, Three frames and nth frame also according to the processing mode of first frame by after coding the first frequency band speech signal and the second frequency band speech believe It number is transferred to and to play end.
It is illustrated by taking time sharing transmissions as an example, Fig. 3 (c) indicates times after the coding detected in the default delay of source label The voice signal of one frequency range is the process of a frame data, and as shown in Fig. 3 (c), source is sent out every interval time Interval A frame data are sent, any when source sends voice signal, in the voice signal of multiple frequency ranges after source-end detection to coding Start timing first when the voice signal of frequency range to be delayed, in the present embodiment, after source-end detection to the coding in the first frame data High frequency speech signal 01DATA1 then starts the delay Delay1 of timing first, until the first delay is equal to default delay, default delay Can be greater than, be less than or equal to interval time Interval, the present embodiment to the specific length of default delay with no restrictions.Source Label first be delayed in the voice signal of multiple frequency ranges that detects be the first frame data, the first frame data are in the present embodiment 01DATA1 and 01DATA2, at the beginning of frame synchronization information includes 01DATA1 and 01DATA2 and finish time；First delay After Delay1, source detects the voice signal of any frequency range in the voice signal of multiple frequency ranges after coding again 02DATA1 then starts the delay Delay2 of timing second, until the second delay is equal to default delay；In source label second is delayed The 02DATA1 and 02DATA2 detected is the second frame data, at the beginning of frame synchronization information includes 01DATA1 and 01DATA2 And finish time, and so on, until source has marked total data.The frame synchronization information also may include the first delay The finish time End1 and End2 of the delay of Delay1 and second Delay2, the frame synchronization information of the first frame data can write direct It in each frame data, such as is written in 01DATA1 and 01DATA2, gets frame synchronization information execution together to play end Step.
As shown in Fig. 3 (b), synchronization can be executed playing end after broadcasting end gets the frame synchronization information, if It plays end and gets the frame synchronization information, then in the finish time End1 of first delay to the first frame after the coding received Data start to decode, and start to decode to the second frame data after the coding received in the finish time End2 of second delay, The rest may be inferred, to realize synchronization；Either start decoding in the finish time of a frame data to realize synchronization；End is played to get After frame synchronization information, since the frame synchronization information has been written into 01DATA1 and 01DATA2, playing end can also root It is synchronous to execute with the specific data in 01DATA2 according to 01DATA1.
It should be noted that the language of any frequency range after the coding detected in the default delay of source label in the present embodiment Sound signal is that the method for a frame data is merely illustrative, and in actual use, those skilled in the art is referred to this The scheme of application embodiment can also obtain other getting frames without creative efforts according to this embodiment The method of synchronizing information.
Disclosure based on the above embodiment, in the present embodiment, source is sent same with frame by the second synchronization link The second frequency band speech signal after walking the coding of information is given before playing end, comprising the following steps:
300: determining the link parameter used according to the link parameter that the broadcasting end that end is sent is supported is played；
301: source establishes and plays the second synchronization link between end according to the link parameter used.
Source sends the second frequency band speech signal after the coding with frame synchronization information by the second synchronization link to broadcasting Before putting end, needs to be established according to the link parameter used and play the second synchronization link between end, and source can basis It plays the link parameter that the broadcasting end that end is sent is supported and determines the link parameter used.
In the present embodiment, after the second synchronization link is established in source determination, the link that source can also support source is joined Number, which is sent to, plays end, a certain to play the link parameter that end is supported according to source and the link parameter selection that broadcasting end is supported The link parameter that a or multiple sources and broadcasting end are supported is sent to source, so that source determines the link parameter used.Source The link parameter that source is supported is sent to and plays end by end, can to play the determining link parameter used in end, source is sent The link parameter that source is supported is joined when playing the link parameter that end is supported according to source with the link that end is supported is played to end is played When the link parameter that number selects some source and broadcasting end to support is sent to source, this link parameter of end selection is played The link parameter exactly used, i.e. broadcasting end can also determine the link parameter used, play what end can be sent according to source The link parameter that source is supported determines the link parameter used.
After above-mentioned steps, the link parameter used is determined that, in order to the foundation of the second synchronization link, the chain Road parameter includes data frame sign and data frame period, the communication information etc. of PHY (PhysicalLayer, physical layer).
Disclosure based on the above embodiment, in the present embodiment, according to the link for playing end and supporting for playing end and sending Parameter determines before the link parameter used, comprising the following steps:
400: source sends the second synchronization link and requests to give broadcasting end；
401: source receives the reply of the second synchronization link request；
402: source determines whether to establish the second synchronization link according to the reply that the second synchronization link is requested.
After broadcasting end receives the second synchronization link request of source transmission, plays end the second synchronization link of transmission and request Reply to source, source determines whether to establish the second synchronization link according to the reply that the second synchronization link is requested.
Source sends the second synchronization link and requests to choose whether to receive to establish the second synchronous chain to play end to end is played Road then sends the link parameter for playing end support to source, so as to source when the foundation for playing end selection the second synchronization link of receiving End determines the link parameter used.After playing the second synchronization link request that end receives source transmission, plays end and send second The reply of synchronization link request determines in source so that source determines whether to establish the second synchronization link and establishes the second synchronous chain Lu Hou, source determine the link parameter used according to the link parameter that end is supported is played, it should be noted that the link used Parameter needs to play end and source while supporting.
Disclosure based on the above embodiment, in the present embodiment, source carries out the second frequency band speech signal to encode it Before, source judges to play whether end supports voice frequency dividing transmission according to control data flow.After connection is established at source and broadcasting end, Source can send the request of control data flow by async link to broadcasting end, and control data flow can pass through source and broadcasting Async link transmission between end, async link allow to retransmit infinitely, therefore, will not lost data packets；It plays end and receives source After the request for holding the control data flow sent, plays end and send control data flow to source, source can be by playing end hair The control data flow sent judge play end whether support the voice frequency dividing transmission, start voice frequency dividing transmission before execute sentence It is disconnected, in order to avoid increase energy consumption in the case where playing end and not supporting voice frequency dividing transmission, when source judges that playing end does not support voice When frequency dividing transmission, then do not need to carry out voice frequency dividing transmission, source can continue to use the original audio frequency transmission method of system and carry out audio biography It is defeated.
Disclosure based on the above embodiment, in the present embodiment, if source passes through customized Universally Unique Identifier (UUID) logos cent keeps pouring in defeated service, and source judges to play whether end supports voice frequency dividing transmission packet according to control data flow It includes:
Control data flow includes the value of customized UUID, if the value of the customized UUID at the broadcasting end that source receives is equal to Default UUID value, source determine that playing end supports voice frequency dividing transmission.Source judges to play end using the value of customized UUID Whether support voice frequency dividing transmission, source can be improved and plays the equipment compatibility at end.If the broadcasting end that source receives The value of customized UUID is equal to default UUID value, then source determines that playing end supports voice frequency dividing transmission.With source and play end For bluetooth connection, in Bluetooth protocol, UUID is used to identify service provided by bluetooth equipment, and UUID type can be with Based on service (Primary Service), characteristic (Characteristic) etc., user can be with customized Universally Unique Identifier (UUID) logos cent keeps pouring in defeated service.The set-up mode of the UUID can refer to Fig. 4, in Fig. 4, Enhance Audio Value can indicate voice frequency dividing transmission service, and the corresponding default UUID value user of Enhance Audio Value can oneself The default UUID value of setting, main service and enhancing service may be the same or different；In Fig. 4, handle indicates index, should Index can help to find the address of UUID in memory, and the occurrence of OxXXXX is true by the specific address of UUID in memory Fixed, without limitation to the value of 0xXXXX, the value of Y and Z are determined the present embodiment by the corresponding data volume size of UUID, the present embodiment pair This is with no restrictions；In Fig. 4,0xOPQ is the customized UUID of user, and user can make according to the format of the value of the UUID in Fig. 4 For with reference to default UUID is arranged, it should be noted that the content in Fig. 4 is merely exemplary explanation, in actual use, this The technical staff in field is referred to the scheme of the embodiment of the present application, without creative efforts, can be with root Embodiment obtains the set-up mode of the value of others UUID accordingly.
Disclosure based on the above embodiment, in the present embodiment, if source is determined according to control data flow plays end branch Voice frequency dividing transmission is held, then executes following steps:
500: source sends audio configuration parameter request and gives broadcasting end:
501: source, which receives, plays the corresponding audio configuration parameter of the second frequency band speech signal that end is supported, audio configuration ginseng Number includes codec parameters and code rate, and codec parameters include that coding mode and decoding process are one such or two kinds；
502: source is used according to the corresponding audio configuration parameter determination of the second frequency band speech signal for playing end support The audio configuration parameter used is simultaneously sent to broadcasting end by audio configuration parameter.
After step 500, playing end will receive the audio configuration parameter request of source transmission, plays end and receives source transmission Audio configuration parameter request after, play end and send the second frequency band speech signal corresponding audio configuration ginseng for playing and supporting at end Number to source, source receive play end support the corresponding audio configuration parameter of the second frequency band speech signal after, source according to The corresponding audio configuration parameter of the second frequency band speech signal that end is supported is played to determine the audio configuration parameter used and will use Audio configuration parameter be sent to play end, in addition, the audio configuration parameter used be also required to be source support audio configuration Parameter.It plays end to receive the audio configuration parameter of source transmission used and configure the audio configuration parameter used, it is determined that make After audio configuration parameter, the audio configuration parameter used can also be configured by playing end.
In the present embodiment, after source sends audio configuration parameter request to end is played, source can also be supported source Audio configuration parameter be sent to and play end, the audio configuration parameter supported to play end according to source and play end support The audio configuration parameter that the one or more sources of audio configuration parameter selection and broadcasting end are supported is sent to source, so as to source Determine the audio configuration parameter used.The audio configuration parameter that source is supported can be sent to and play end by source, so that playing End can also determine the audio configuration parameter used, support when playing the audio configuration parameter that end is supported according to source with end is played A kind of source of audio configuration parameter selection and when playing the audio configuration parameter supported of end and being sent to source, play end selection This audio configuration parameter be exactly using audio configuration parameter；
In the present embodiment, audio configuration parameter includes codec parameters and code rate, codec parameters include coding mode and One or both of decoding process, source receive one or both of coding mode and the decoding process for playing that end is supported Afterwards, source can determine the coding mode used, can decode in order to play after end receives voice signal；It plays end and receives source After holding one or both of the coding mode supported and decoding process, the decoding process used can be determined by playing end, so as to In play end to after the coding received the first frequency band speech signal and the second frequency band speech signal be decoded；Encoding and decoding ginseng Number includes one or both of coding mode or decoding process, can also include sampling depth and sample rate, user can root Sample rate and sampling depth on the second synchronization link are set according to demand, to further increase sound quality, source can be according to coding Mode carries out corresponding coding, and corresponding decoding can be carried out according to decoding process by playing end, in addition, audio configuration parameter may be used also To include device number, device address etc., convenient for source and being mutually distinguishable for end is played.In addition, audio configuration parameter also can wrap Code rate is included, code rate can be arranged according to data frame sign, and setting code rate can further save bandwidth, and the second frequency range can be set The code rate of voice signal is higher or lower than the code rate of the first frequency band speech signal, for example, High frequency speech signal can be set Code rate is lower than the code rate of non-High frequency speech signal, specifically, the code rate of High frequency speech signal can be set less than or equal to non-height 20 the percent of the code rate of frequency voice signal, the present embodiment to the specific value of code rate with no restrictions.
Disclosure based on the above embodiment, in the present embodiment, the item number of the second synchronization link is less than or equal to second The band number of frequency band speech signal.In the present embodiment, the item number of the second synchronization link can be equal to the second frequency band speech signal Band number, i.e. the second synchronization link of each can only transmit a sub- frequency band speech letter in the second frequency band speech signal Number；The item number of second synchronization link can be less than the band number of the second frequency band speech signal, i.e. the second synchronization link of each can To transmit two or two frequency sub-band voice signals in the second frequency band speech signal.In addition, source can be according to electricity feelings The link-quality of condition or the second synchronization link stops voice frequency dividing transmission, and in source not enough power supply, source can disconnect one Item or a plurality of second synchronization link stop the transmission of voice frequency dividing with moeties or all to extend cruise duration, in addition, disconnected The one or more the second synchronization links are opened to include breaking part or disconnect all the second synchronization links.In the second synchronization link When link-quality is poor, source can disconnect the one or more the second synchronization links and stop voice point with moeties or all Keep pouring in it is defeated extend cruise duration, in order to avoid both occupied bandwidth or the effect for improving sound quality had been not achieved；In addition, one or more the After two synchronization links are disconnected, source can be re-established according to the link-quality of charge condition or the second synchronization link this one Item or a plurality of second synchronization link are to restart or enhance voice frequency dividing transmission, for example, reaching electricity preset value in source electricity Or second link-quality of synchronization link when being increased to link-quality preset value, source can re-establish one or more the Two synchronization links are to restart or enhance voice frequency dividing transmission.In addition, for playing end, it can also be according to charge condition or the The link-qualities of two synchronization links disconnects the one or more the second synchronization links or to re-establish one or more the second synchronous Link, either source still play end and initiate to disconnect the one or more the second synchronization links, and being initiated end should be unconditionally Receive to disconnect the one or more the second synchronization links.
The embodiment of the present application provides a kind of voice frequency dividing transmission method, and the present embodiment is said from the angle for playing end It is bright, referring to FIG. 5, Fig. 5 is the flow chart that a kind of voice provided by the embodiments of the present application divides transmission method, this method comprises:
600: playing end by the first synchronization link and the second synchronization link and receive the coding with frame synchronization information respectively The second frequency band speech signal after the first frequency band speech signal afterwards and the coding with frame synchronization information；
601: playing end and the first frequency band speech signal and the second frequency band speech signal that receive are decoded；
602: playing end by frame synchronization information to decoded first frequency band speech signal and decoded second frequency range Voice signal synchronizes.
In the present embodiment, after source is established and plays the second synchronization link between end, source passes through the first synchronous chain Road and the second synchronization link transmit the first frequency band speech signal and the second frequency range language after the coding with frame synchronization information respectively Sound signal plays end and receives the first frequency band speech signal and the second frequency range language after the coding with frame synchronization information to end is played After sound signal frequency band speech signal, to the first frequency band speech signal and the second frequency range language after the coding with frame synchronization information Sound signal is decoded respectively, the present embodiment to the type of decoding process with no restrictions.End is played to the first frequency range received Voice signal and the second frequency band speech signal can use identical decoding process, can also use different decoding processes, if Second frequency band speech signal includes multiple frequency sub-band voice signals, plays end to multiple frequency sub-band voices after the coding received The decoding process of signal may be the same or different, for example, if playing end to four frequency sub-band languages after the coding received Sound signal is decoded, then can choose a kind of, two kinds, three kinds or four kinds of decoding processes.End is played to first received After frequency band speech signal and the second frequency band speech signal are decoded, end is played by frame synchronization information to decoded first frequency Section voice signal and the second frequency band speech signal synchronize, and can be further improved audio quality, the present embodiment is to specific Synchronous method is with no restrictions.
The embodiment of the present application receives the volume with frame synchronization information by the first synchronization link and the second synchronization link respectively The first frequency band speech signal after code and the second frequency band speech signal after the coding with frame synchronization information, solve due to passing The problem of the problem of defeated bandwidth limitation bring sound quality decline, is with audio being played on is influenced when improving sound quality.
Disclosure based on the above embodiment, in the present embodiment, to decoded first frequency band speech signal and decoding After the second frequency band speech signal afterwards synchronizes, electroacoustic conversion is carried out after digital-to-analogue conversion, amplification, user can listen To sound.It plays end and decoded first frequency band speech signal and decoded second frequency band speech is believed by frame synchronization information After number synchronizing, comprising the following steps:
700: play end to after synchronizing the first frequency band speech signal and it is synchronous after the second frequency band speech signal pass through one A or multiple and different digital analog converter carries out digital-to-analogue conversion respectively；
701: the first frequency band speech signal after playing the conversion of end logarithmic mode and the second frequency band speech letter after digital-to-analogue conversion It number is amplified respectively by different one or more amplifiers；
702: playing end and one is passed through to amplified first frequency band speech signal and amplified second frequency band speech signal A or multiple and different electroacoustic transducer carries out electroacoustic conversion respectively.
Frame synchronization information that end is sent by source is played to decoded first frequency band speech signal and decoded the After two frequency band speech signals synchronize, then playing end can be passed through by a digital analog converter progress digital-to-analogue conversion One amplifier amplifies, and then, carries out electroacoustic conversion by an electroacoustic transducer；End is played to decoded first frequency It, can also be to the first frequency band speech after synchronizing after section voice signal and decoded second frequency band speech signal synchronize Signal and the second frequency band speech signal carry out digital-to-analogue conversion by different digital analog converters respectively, and the present embodiment can use two A or more than two different digital analog converters are to adapt to the characteristic of the voice signal of different frequency range, and then, playing end can be with The first frequency band speech signal and the second frequency band speech signal after logarithmic mode conversion are amplified respectively by different amplifiers, The present embodiment can use two or more different amplifiers to adapt to the characteristic of the voice signal of different frequency range, so Afterwards, it plays end and amplified first frequency band speech signal and the second frequency band speech signal is distinguished by different electroacoustic transducers Electroacoustic conversion is carried out, the present embodiment can use two or more different electroacoustic transducers to adapt to different frequency range The characteristic of voice signal, electroacoustic transducer can be the device that loudspeaker or loudspeaker etc. convert electric energy to sound energy, this implementation Example to the type of electroacoustic transducer with no restrictions.
In the present embodiment, play end to after synchronizing the first frequency band speech signal and the second frequency band speech signal carry out respectively Digital-to-analogue conversion, can according to the characteristic by the voice signal of different frequency range using different digital analog converters to the after synchronizing One frequency band speech signal and the second frequency band speech signal carry out digital-to-analogue conversion respectively, and to further increase audio quality, digital-to-analogue turns After changing, the first frequency band speech signal and the second frequency band speech signal after playing the conversion of end logarithmic mode carry out electricity after amplifying again Sound conversion；End is played to the first frequency band speech signal after synchronizing and after the second frequency band speech signal carries out digital-to-analogue conversion respectively, The first frequency band speech signal and the second frequency band speech signal after playing the conversion of end logarithmic mode amplify respectively, can be according to not With frequency range voice signal characteristic using different amplifiers to the first frequency band speech signal and the second frequency range language after synchronizing Sound signal amplifies respectively, to further increase audio quality, after amplification, plays end and believes amplified first frequency band speech Number and the second frequency band speech signal carry out electroacoustic conversion.It should be noted that in the present embodiment, play end only to synchronizing after First frequency band speech signal and the second frequency band speech signal carry out digital-to-analogue conversion by different digital analog converters respectively Further increase audio quality；Play end only logarithmic mode conversion after the first frequency band speech signal and the second frequency band speech signal Being amplified respectively by different amplifiers also can be further improved audio quality；End is played only to amplified first Frequency band speech signal and the second frequency band speech signal carry out electroacoustic conversion by different electroacoustic transducers respectively can also be into one Step improves audio quality.
Disclosure based on the above embodiment in the present embodiment, plays end and is received by the second synchronization link and have frame Before the second frequency band speech signal after the coding of synchronizing information, control data flow can be sent to source, so that source by playing end End judges to play whether end supports voice frequency dividing to transmit according to control data flow, judges to play end before starting voice frequency dividing transmission Whether voice frequency dividing transmission is supported, in order to avoid increase energy consumption in the case where playing end and not supporting voice frequency dividing transmission, it is assumed that it plays Voice frequency dividing transmission is not supported at end, and source does not judge whether play end supports voice frequency dividing transmission according to control data flow, then When source starts to carry out voice frequency dividing transmission, when source encodes the first frequency band speech signal and the second frequency band speech signal It begins to increase and consume energy.When source judges that playing end does not support voice frequency dividing transmission, source can continue to use the original audio of system Transmission method carries out audio transmission, and no longer carries out all compiling the first frequency band speech signal and the second frequency band speech signal Code.
Disclosure based on the above embodiment, in the present embodiment, if source is determined according to control data flow plays end branch Voice frequency dividing transmission is held, then playing end will receive the second synchronization link request of source transmission, plays end and receives source transmission After the request of second synchronization link, send the request of the second synchronization link replies to source, if playing end supports voice frequency dividing transmission, It plays end and sends the link parameter for playing end support to source so that source establishes the second synchronization link.
Disclosure based on the above embodiment in the present embodiment, plays end and receives the second synchronization link that source is sent Before request, comprising the following steps:
701: playing end and receive the audio configuration parameter request that source is sent；
702: playing end and send the corresponding audio configuration parameter of the second frequency band speech signal for playing end support to source；
703: playing end and receive the audio configuration parameter of source transmission used and configure the audio configuration parameter used.
Source sends audio configuration parameter request to end is played, and plays end and receives the audio configuration parameter request that source is sent Later, it plays end and sends the corresponding audio configuration parameter of the second frequency band speech signal for playing end support to source, source receives After playing the corresponding audio configuration parameter of the second frequency band speech signal that end is supported, source is according to the second frequency for playing end support The corresponding audio configuration parameter of section voice signal determines the audio configuration parameter used and sends the audio configuration parameter used To end is played, plays end and receive the audio configuration parameter of source transmission used and configure the audio configuration parameter used, meanwhile, Source will also configure the audio configuration parameter used.
Disclosure based on the above embodiment, in the present embodiment, playing end can be same according to charge condition or second The link-quality for walking link disconnects the one or more the second synchronization links, and when playing end not enough power supply, broadcasting end can be disconnected One or more the second synchronization links stop the transmission of voice frequency dividing with moeties or all to extend cruise duration, when one Or a plurality of second synchronization link is when being disconnected, the voice signal of corresponding frequency band is not on the one or more the second synchronization links of disconnection It is coded and decoded；Or when the link-quality of the second synchronization link is poor, one or more the can be disconnected by playing end Two synchronization links, so as not to both occupied bandwidth and be not achieved improve sound quality effect；In addition, in voice frequency dividing transmission by moeties Perhaps end is played after all stopping can build again according to the link quality requests source of charge condition or the second synchronization link Vertical one or more the second synchronization link is to restart or enhance voice frequency dividing transmission, for example, reaching electricity playing end electricity When the link-quality of preset value or the second synchronization link is increased to link-quality preset value, source can be requested again by playing end The one or more the second synchronization links disconnected are established to restart or enhance voice frequency dividing transmission.In addition, for source, it can also To disconnect the one or more the second synchronization links according to the link-quality of charge condition or the second synchronization link or build again Vertical one or more the second synchronization link, either source still play end and initiate to disconnect the one or more the second synchronization links, Being initiated end should unconditionally receive to disconnect the one or more the second synchronization links.
The embodiment of the present application provides a kind of voice frequency dividing transmission method, passes through the first synchronization link and the second synchronization link Respectively receive with frame synchronization information coding after the first frequency band speech signal and the second frequency band speech signal, solve due to The problem of the problem of transmission bandwidth limitation bring sound quality decline, is with audio being played on is influenced when improving sound quality.
A kind of source can also be provided in the embodiment of the present application, passes for executing a kind of voice proposed in previous embodiment frequency dividing Transmission method, Fig. 6 is the structural schematic diagram of source provided in this embodiment, as shown in fig. 6, the source 50 includes:
Coding module 51, for being encoded to the first frequency band speech signal and the second frequency band speech signal；
Presynchronization module 52, for by frame synchronization information be tagged to coding after the first frequency band speech signal and coding after In second frequency band speech signal；And
First sending module 53 is believed for being sent respectively by the first synchronization link and the second synchronization link with frame synchronization The second frequency band speech signal after the first frequency band speech signal after the coding of breath and the coding with frame synchronization information is to broadcasting End.
Optionally, the compression ratio of the coding mode of the second frequency band speech signal is higher than the coding staff of the first frequency band speech signal The compression ratio of formula；Or
Pressure of the compression ratio of the coding mode of second frequency band speech signal lower than the coding mode of the first frequency band speech signal Shrinkage.
Optionally, coding module includes:
High-frequency coding module, for encoding to High frequency speech signal, the coding mode to High frequency speech signal includes CELT coding mode or SBR coding mode；Or
Non- high-frequency coding module, for being encoded to non-High frequency speech signal, to the coding staff of non-High frequency speech signal Formula includes SILK coding mode, SBC coding mode, AAC coding mode or MP3 coding mode.
Optionally, presynchronization module includes:
Data frame mark module, for marking the voice signal of any frequency range after the coding detected in default delay to be One frame data, frame synchronization information include a frame data at the beginning of and finish time.
Optionally, source further include:
First parameter determination module, the first sending module send the coding for having frame synchronization information by the second synchronization link To before playing end, the link parameter for being supported according to the broadcasting end for playing end transmission determines the second frequency band speech signal afterwards The link parameter used；
Link establishment module, for establishing and playing the second synchronization link between end according to the link parameter used.
Optionally, source further include:
Second sending module, the first parameter determination module are determined according to the link parameter that end is supported that plays that end is sent is played Before the link parameter used, request to give broadcasting end for sending the second synchronization link；And
First receiving module, for receiving the reply of the second synchronization link request；
First parameter determination module is also used to be determined whether according to the reply that the second synchronization link is requested to establish second synchronous Link.
Optionally, source further include:
First judgment module, before coding module encodes the second frequency band speech signal, for according to control data Stream judges to play whether end supports voice frequency dividing transmission, controls data flow and transmitted by async link.
Optionally, source further includes UUID module, for identifying voice by customized Universally Unique Identifier (UUID) Frequency dividing transmission service；
First judgment module includes:
Second judgment module, control data flow include the value of customized UUID, if the broadcasting end received is customized The value of UUID is equal to default UUID value, for determining that playing end supports voice frequency dividing transmission.
Optionally, source further include:
Third sending module: if first judgment module determines that playing end supports voice frequency dividing transmission according to control data flow, Broadcasting end is given for sending audio configuration parameter request；
Second receiving module: for receiving the corresponding audio configuration parameter of the second frequency band speech signal for playing end and supporting, Audio configuration parameter includes codec parameters and code rate, and codec parameters include one of coding mode and decoding process or two Kind；And
Second parameter determination module, for being joined according to the corresponding audio configuration of the second frequency band speech signal for playing end support Number determines the audio configuration parameter used；
The audio configuration parameter that third sending module is also used to use, which is sent to, plays end.
Optionally, source further include:
First transmission control module, for according to the link-quality of charge condition or the second synchronization link disconnect one or A plurality of second synchronization link, the item number of the second synchronization link are less than or equal to the band number of the second frequency band speech signal；Or
First transmission control module is also used to establish one according to the link-quality of charge condition or the second synchronization link Or a plurality of second synchronization link, the item number of the second synchronization link are less than or equal to the band number of the second frequency band speech signal.
The embodiment of the present application provides a kind of source, for executing a kind of voice proposed in previous embodiment frequency dividing transmission Method, the first frequency range language after sending the coding with frame synchronization information respectively by the first synchronization link and the second synchronization link The second frequency band speech signal after sound signal and coding with frame synchronization information is solved to end is played since transmission belt is extended the deadline The problem of influencing audio being played on when the problem of bring sound quality processed declines and improvement sound quality.
A kind of broadcasting end can also be provided in the embodiment of the present application, for executing a kind of voice proposed in previous embodiment frequency dividing Transmission method, Fig. 7 is the structural schematic diagram provided in this embodiment for playing end, as shown in fig. 7, the broadcasting end 60 includes:
Third receiving module 61 is believed for being received respectively by the first synchronization link and the second synchronization link with frame synchronization The second frequency band speech signal after the first frequency band speech signal after the coding of breath and the coding with frame synchronization information；
Decoder module 62, for the second frequency range language after the first frequency band speech signal and coding after the coding received Sound signal is decoded；
Synchronization module 63, for passing through frame synchronization information to decoded first frequency band speech signal and decoded second Frequency band speech signal synchronizes.
Optionally, end is played further include:
One or more different D/A converter modules, for the first frequency band speech signal and the second frequency range after synchronizing Voice signal carries out digital-to-analogue conversion respectively；
One or more different amplification modules, for the first frequency band speech signal and the second frequency range after logarithmic mode conversion Voice signal amplifies respectively；And
One or more different electroacoustic conversion modules, for amplified first frequency band speech signal and the second frequency range Voice signal carries out electroacoustic conversion respectively.
Optionally, end is played further include:
4th sending module, after third receiving module receives the coding with frame synchronization information by the second synchronization link Before second frequency band speech signal, for sending control data flow to source, so that source is played according to control data flow judgement Whether voice frequency dividing transmission is supported in end.
Optionally, end is played further include:
4th receiving module, if source determines that playing end supports voice frequency dividing transmission according to control data flow, for receiving The second synchronization link request that source is sent；And
5th sending module, for sending the reply of the second synchronization link request；
If play end support voice frequency dividing transmission, the 5th sending module be also used to send play end support link parameter to Source.
Optionally, end is played further include:
5th receiving module, before the 4th receiving module receives the second synchronization link request that source is sent, for receiving The audio configuration parameter request that source is sent；
6th sending module, for send play end support the corresponding audio configuration parameter of the second frequency band speech signal to Source；
5th receiving module is also used to receive the audio configuration parameter of source transmission used；And
Parameter configuration module, for configuring the audio configuration parameter used.
Optionally, end is played further include:
Second transmission control module, for according to the link-quality of charge condition or the second synchronization link disconnect one or A plurality of second synchronization link；Or
Second transmission control module is also used to the link quality requests source according to charge condition or the second synchronization link Establish the one or more the second synchronization links.
The embodiment of the present application provides a kind of broadcasting end, receives band respectively by the first synchronization link and the second synchronization link The first frequency band speech signal and the second frequency band speech signal after having the coding of frame synchronization information are solved since transmission belt is extended the deadline The problem of influencing audio being played on when the problem of bring sound quality processed declines and improvement sound quality.
A kind of source can also be provided in the embodiment of the present application, and a kind of voice for executing embodiment proposition divides transmission side Method, as shown in figure 8, the source 70 includes: memory 71 and processor 72；
Memory 71 is coupled with processor 72；
Memory 71, for storing program instruction；
Processor 72, the program instruction for calling memory to store, so that source executes voice and divides transmission method.
The voice frequency dividing transmission method that any of the above-described embodiment provides can be performed in source provided by the embodiments of the present application Method, concrete implementation process and beneficial effect are referring to above-mentioned, and details are not described herein.
A kind of broadcasting end can also be provided in the embodiment of the present application, and a kind of voice for executing embodiment proposition divides transmission side Method, as shown in figure 9, the broadcasting end 80 includes: memory 81 and processor 82；
Memory 81 is coupled with processor 82；
Memory 81, for storing program instruction；
Processor 82, the program instruction for calling memory to store divide transmission method so that playing end and executing voice.
The voice frequency dividing transmission side that any of the above-described embodiment provides can be performed in broadcasting end provided by the embodiments of the present application Method, concrete implementation process and beneficial effect are referring to above-mentioned, and details are not described herein.
A kind of computer readable storage medium can also be provided in the embodiment of the present application, is stored thereon with computer program, the meter Realize that executing the voice that source executes divides transmission method when calculation machine program is executed by processor 72.
The source that any of the above-described embodiment provides can be performed in computer readable storage medium provided by the embodiments of the present application The voice that end executes divides transmission method, and concrete implementation process and beneficial effect are referring to above-mentioned, and details are not described herein.
A kind of computer readable storage medium can also be provided in the embodiment of the present application, is stored thereon with computer program, the meter Realize that executing the voice for playing end execution divides transmission method when calculation machine program is executed by processor 82.
Broadcasting for any of the above-described embodiment offer can be performed in computer readable storage medium provided by the embodiments of the present application Put the voice frequency dividing transmission method that end executes, concrete implementation process and beneficial effect are referring to above-mentioned, and details are not described herein.
A kind of source circuit can also be provided in the embodiment of the present application, which, which can be used to implement in previous embodiment, mentions A kind of voice out divides transmission method, and Figure 10 is the structural schematic diagram of source circuit provided in this embodiment.The source circuit Include:
Encoder, for being encoded to the first frequency band speech signal and the second frequency band speech signal；And
Source controller, connect with encoder, for sending band respectively by the first synchronization link and the second synchronization link The second frequency band speech after the first frequency band speech signal after having the coding of frame synchronization information and the coding with frame synchronization information Signal gives broadcasting terminal circuit.
As shown in Figure 10, encoder 0 is the original encoder of system, after the first synchronization link of system 0 is used to transmit coding The first frequency band speech signal, be illustrated by taking only one encoder 0 of source as an example, in the present embodiment, by voice signal point From for the first frequency band speech signal and the second frequency band speech signal, for example, the second frequency band speech signal is High frequency speech signal, the One frequency band speech signal is non-High frequency speech signal；Encoder 0 can use opus encoder, be built-in with two in opus encoder Kind core encryption algorithm: CELT coding mode and SILK coding mode, it is assumed that original audio frequency transmission method is encoded using SILK Mode encodes non-High frequency speech signal, then can still be encoded using CELT mode to high frequency language using opus encoder Sound signal is encoded；The present embodiment can also use multiple encoders, the present embodiment to the number of encoder with no restrictions, with Source is illustrated for having encoder 0 and encoder 1, for example, encoder 0 can be to the non-High frequency speech signal of voice signal It is encoded, and encoder 1 can encode High frequency speech signal, due to High frequency speech signal and non-High frequency speech signal Characteristic it is different, therefore, if encoded respectively using different coding modes, can achieve increase a small amount of bandwidth can To improve the purpose of audio quality.As Figure 10 after encoder 0 encodes it, passes through for the second frequency band speech signal Two synchronization links 1, which are transferred to, plays end, and source controller is connect with encoder 0, for same by the first synchronization link 0 and second The transmission of link 1 is walked with the first frequency band speech signal and the second frequency band speech signal after the coding of frame synchronization information.When second When frequency band speech signal includes m sub- frequency band speech signal, m > 1 and be integer can respectively correspond the second synchronization link of m item, It should be noted that the item number of the second synchronization link herein is that m item is merely exemplary explanation, the present embodiment also be can be used Second synchronization link of the item number less than m transmits m sub- frequency band speech signals, item number of the present embodiment to the second synchronization link With no restrictions.
Disclosure based on the above embodiment, in the present embodiment, source circuit can also include filter, filter with Encoder connection, for separating the first frequency band speech signal and the second frequency band speech signal.Please refer to the electricity of source shown in Figure 11 Road, as shown in figure 11, voice signal are transferred to using corresponding second synchronization link 1 after wave filter 1 is encoded and broadcast End is put, the acquisition of the first frequency band speech signal can also realize that it is also not necessary to filters, only pass through by a filter Encoder 0 encodes the voice signal of special frequency channel with realizing, it should be noted that quantity of the present embodiment to filter With no restrictions, can also only only one filter, especially if the coding mode that certain encoders use is only right The voice signal of special frequency channel is encoded, then before the encoder can not need corresponding filter, such as opus encoder Filter can not be needed, the present embodiment also with no restrictions, can use low-pass filter, high-pass filtering to the type of filter Device, bandpass filter or other filters and any combination thereof, in the present embodiment, if the first frequency band speech signal or the second frequency Section voice signal is multiple frequency sub-band voice signals, then filter can be also used for multiple in the first frequency band speech signal of separation Frequency sub-band voice signal can be used for multiple frequency sub-band voice signals in the second frequency band speech signal of separation.
The embodiment of the present application provides a kind of source circuit, by the first frequency band speech signal and the second frequency band speech letter It number is encoded, and is carried out after transmission has the coding of frame synchronization information respectively by the first synchronization link and the second synchronization link First frequency band speech signal and the second frequency band speech signal solve the problems, such as to limit the decline of bring sound quality due to transmission bandwidth The problem of with audio being played on is influenced when improving sound quality.
A kind of broadcasting terminal circuit can also be provided in the embodiment of the present application, which can be used to implement previous embodiment A kind of voice of middle proposition divides transmission method, referring to FIG. 10, Figure 10 is source circuit provided in this embodiment and broadcasting end The structural schematic diagram of circuit.
The broadcasting terminal circuit includes:
Side controller is played, has frame synchronization information for receiving respectively by the first synchronization link and the second synchronization link The second frequency band speech signal after the first frequency band speech signal after coding and the coding with frame synchronization information；And
Multiple decoders are connect with side controller is played, for the first frequency band speech signal received and the second frequency Section voice signal is decoded.
As shown in Figure 10, decoder 0 can be the original decoder of system, and the first synchronization link of system 0 is used to transmit volume The first frequency band speech signal after code, the present embodiment can use one or more decoders, number of the present embodiment to decoder When with no restrictions, using a decoder, a decoder can be using different decoding processes to the volume for having frame synchronization information The first frequency band speech signal and the second frequency band speech signal after code are decoded；To play, there is decoder 0 at end and decoder 1 is Example is illustrated, for example, decoder 0 can be decoded non-High frequency speech signal, and decoder 1 can believe High frequency speech It number is decoded, since the characteristic of High frequency speech signal and non-High frequency speech signal is different, using different decoders, Audio quality can be improved to achieve the purpose that increase a small amount of bandwidth.As shown in Figure 10, encoder 0 believes the second frequency band speech It after number being encoded, is transferred to by the second synchronization link 1 and plays end, played side controller and connect with decoder 0, for passing through First synchronization link 0 and the second synchronization link 1 receive the first frequency band speech signal after the coding with frame synchronization information respectively With the second frequency band speech signal.In the present embodiment, the number of decoder can be equal to the number of encoder, can also be not equal to volume The number of code device.Decoded first frequency band speech signal and the second frequency band speech signal are after digital analog converter, amplifier Electroacoustic conversion is carried out by electroacoustic transducer.
Disclosure based on the above embodiment in the present embodiment, plays terminal circuit further include:
One or more different digital analog converters, connect with decoder respectively, for decoded first frequency range language Sound signal and decoded second frequency band speech signal carry out digital-to-analogue conversion respectively；
One or more different amplifiers, connect with one or more digital analog converters respectively, convert for logarithmic mode The second frequency band speech signal after rear the first frequency band speech signal and digital-to-analogue conversion amplifies respectively；And
One or more different electroacoustic transducers, connect with one or more amplifiers respectively, for amplified First frequency band speech signal and amplified second frequency band speech signal carry out electroacoustic conversion respectively.
Figure 11 is please referred to, Figure 11 is the source circuit of the embodiment of the present application and the structural schematic diagram for playing terminal circuit, this reality It applies in example, decoded first frequency band speech signal and the second frequency band speech signal can be turned by digital analog converter 0 and digital-to-analogue Parallel operation 1 carries out digital-to-analogue conversion respectively, can be according to the characteristic of the voice signal of different frequency range for the voice signal of different frequency range Select different digital analog converters, to further increase sound quality, in the present embodiment, after digital-to-analogue conversion the first frequency band speech signal and Second frequency band speech signal can amplify in an amplifier, then carry out electroacoustic conversion with an electroacoustic transducer； The first frequency band speech signal and the second frequency band speech signal after digital-to-analogue conversion can also pass through amplifier 0 and amplifier 1 respectively Amplify respectively, for the voice signal of different frequency range, different put can be selected according to the characteristic of the voice signal of different frequency range Big device, to further increase sound quality, amplified first frequency band speech signal and the second frequency band speech signal can use an electricity Acoustical convertor carries out electroacoustic conversion；Amplified first frequency band speech signal and the second frequency band speech signal can also be by multiple Electroacoustic transducer carries out electroacoustic conversion, can select to respond using different frequency according to the characteristic of the voice signal of different frequency range Electroacoustic transducer electroacoustic conversion is carried out respectively to amplified first frequency band speech signal and the second frequency band speech signal, with into One step improves in audio quality the present embodiment and carries out electroacoustic conversion respectively with loudspeaker 0 and loudspeaker 1.In Figure 11, each solution The all corresponding digital analog converter of code device, an amplifier and a loudspeaker, it should be noted that Figure 11 is merely illustrative It is bright, one or more digital analog converters, one or more amplifier or one or more can also be shared between multiple decoders A loudspeaker, the present embodiment are without limitation.It, can be with when the second frequency band speech signal includes m sub- frequency band speech signal The second synchronization link of m item is respectively corresponded, in the present embodiment, for m sub- frequency band speech signals after coding, corresponding decoder Number can be less than or equal to m, the number of corresponding digital analog converter, amplifier and electroacoustic transducer can be less than or equal to m, this Embodiment to the specific value of m with no restrictions.
The embodiment of the present application provides a kind of broadcasting terminal circuit, is connect respectively by the first synchronization link and the second synchronization link Take-up has the first frequency band speech signal and the second frequency band speech signal after the coding of frame synchronization information, solves due to transmission belt The problem of influencing audio being played on when the problem of extending the deadline bring sound quality processed decline and improvement sound quality.
It should be noted that the application above method embodiment can be applied in processor, or realized by processor.Processor It may be a kind of IC chip, the processing capacity with signal.During realization, each step of above method embodiment It can be completed by the integrated logic circuit of the hardware in processor or the instruction of software form.Above-mentioned processor can be General processor, digital signal processor (digital signal processor, DSP), specific integrated circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field Programmable gate array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present application.It is general Processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with the embodiment of the present application institute The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at The step of memory, processor reads the information in memory, completes the above method in conjunction with its hardware.
It is appreciated that the memory in the embodiment of the present application can be volatile memory or nonvolatile memory, or It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (read- Only memory, ROM), programmable read only memory (programmable rom, PROM), the read-only storage of erasable programmable Device (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (random access memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (double data rate SDRAM, DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (enhanced SDRAM, ESDRAM), synchronized links Dynamic random access memory (synchlink DRAM, SLDRAM) and direct rambus random access memory (direct Rambus RAM, DR RAM).It should be noted that the memory of system and method described herein be intended to include but be not limited to these and The memory of any other suitable type.
It should be understood that in the embodiment of the present application, " B corresponding with A " indicates that B is associated with A, B can be determined according to A.But It should also be understood that determining that B is not meant to determine B only according to A according to A, B can also be determined according to A and/or other information.
In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (read-only memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (random access memory, RAM), magnetic or disk.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims (40)

1. a kind of voice divides transmission method characterized by comprising
Source encodes the first frequency band speech signal and the second frequency band speech signal；
Described second after first frequency band speech signal and coding that frame synchronization information is tagged to after encoding by the source In frequency band speech signal；
The source sends the volume with the frame synchronization information by the first synchronization link and the second synchronization link respectively First frequency band speech signal after code and second frequency band speech after the coding with the frame synchronization information Signal gives broadcasting end.
2. voice according to claim 1 divides transmission method characterized by comprising
The compression ratio of the coding mode of second frequency band speech signal is higher than the coding mode of first frequency band speech signal Compression ratio；Or
The compression ratio of the coding mode of second frequency band speech signal is lower than the coding mode of first frequency band speech signal Compression ratio.
3. voice according to claim 1 or 2 divides transmission method, which is characterized in that source believes the second frequency band speech Number carrying out coding includes:
The source encodes High frequency speech signal, the coding mode packet of the source to the High frequency speech signal Include CELT coding mode or SBR coding mode；Or
The source encodes non-High frequency speech signal, the coding staff of the source to the non-High frequency speech signal Formula includes SILK coding mode, SBC coding mode, AAC coding mode or MP3 coding mode.
4. voice according to any one of claim 1 to 3 divides transmission method, which is characterized in that the source is by frame Synchronizing information is tagged in first frequency band speech signal after encoding and second frequency band speech signal after coding and wraps It includes:
The voice signal of any frequency range after the coding detected in the default delay of source label is a frame data, the frame At the beginning of synchronizing information includes a frame data and finish time.
5. voice according to any one of claim 1 to 4 divides transmission method, which is characterized in that the source passes through The transmission of second synchronization link is given with second frequency band speech signal after the coding of the frame synchronization information plays end Before, comprising:
The link parameter used is determined according to the link parameter that the broadcasting end that the broadcasting end is sent is supported；
The source is established according to the link parameter used and second synchronization link played between end.
6. voice according to claim 5 divides transmission method, which is characterized in that described to play what end was sent according to described The link parameter for playing end support determines before the link parameter used, comprising:
The source sends the second synchronization link and requests to the broadcasting end；
The source receives the reply of the second synchronization link request；
The source determines whether to establish second synchronization link according to the reply that second synchronization link is requested.
7. voice according to any one of claim 1 to 6 divides transmission method, which is characterized in that the source is to the Before two frequency band speech signals are encoded, further includes:
The source judges whether the broadcasting end supports the voice frequency dividing transmission, the control data according to control data flow Stream is transmitted by async link.
8. voice according to claim 7 divides transmission method, which is characterized in that if the source pass through it is customized general Unique identifier (UUID) logos cent keeps pouring in defeated service, and whether the source judges the broadcasting end according to control data flow Support that the voice frequency dividing transmission includes:
It is described control data flow include the customized UUID value, if the broadcasting end that the source receives it is described from The value for defining UUID is equal to default UUID value, and the source determines that the voice frequency dividing transmission is supported at the broadcasting end.
9. voice according to claim 7 or 8 divides transmission method characterized by comprising
If the source determines that the voice frequency dividing transmission is supported at the broadcasting end according to control data flow, the source sends sound Frequency configuration parameter is requested to the broadcasting end；
The source receives the corresponding audio configuration parameter of second frequency band speech signal that the broadcasting end is supported, the sound Frequency configuration parameter includes codec parameters and code rate, and the codec parameters include that the coding mode and decoding process are therein It is one or two kinds of；
The source makes according to the corresponding audio configuration parameter determination of second frequency band speech signal that the broadcasting end is supported The audio configuration parameter used is simultaneously sent to the broadcasting end by audio configuration parameter.
10. voice according to any one of claim 1 to 9 divides transmission method characterized by comprising
The item number of second synchronization link is less than or equal to the band number of second frequency band speech signal；
The source disconnects one or more described second according to the link-quality of charge condition or second synchronization link Synchronization link；Or
The source establishes described one or more according to the link-quality of the charge condition or second synchronization link Second synchronization link.
11. a kind of voice divides transmission method characterized by comprising
Broadcasting end receives first after the coding with frame synchronization information by the first synchronization link and the second synchronization link respectively The second frequency band speech signal after frequency band speech signal and coding with the frame synchronization information；
The broadcasting end is decoded first frequency band speech signal and second frequency band speech signal that receive；
The broadcasting end is by the frame synchronization information to decoded first frequency band speech signal and decoded described Second frequency band speech signal synchronizes.
12. voice according to claim 11 divides transmission method, which is characterized in that the broadcasting end is same by the frame Step information synchronizes it to decoded first frequency band speech signal and decoded second frequency band speech signal Afterwards, comprising:
It is described play end to after synchronizing first frequency band speech signal and it is synchronous after second frequency band speech signal lead to It crosses one or more different digital analog converters and carries out digital-to-analogue conversion respectively；
It is described to play first frequency band speech signal after end logarithmic mode is converted and the second frequency range language after digital-to-analogue conversion Sound signal is amplified respectively by one or more different amplifiers；
The broadcasting end is logical to amplified first frequency band speech signal and amplified second frequency band speech signal It crosses one or more different electroacoustic transducers and carries out electroacoustic conversion respectively.
13. voice according to claim 11 or 12 divides transmission method, which is characterized in that the broadcasting end passes through second Synchronization link receive with the frame synchronization information coding after the second frequency band speech signal before include:
The broadcasting end sends control data flow to the source, so that the source is according to control data flow judgement Play whether end supports the voice frequency dividing transmission.
14. voice according to claim 13 divides transmission method characterized by comprising
If the source determines that the voice frequency dividing transmission, the broadcasting end are supported in the broadcasting end according to the control data flow Receive the reply that the second synchronization link request Concurrency that the source is sent send the second synchronization link request；
If the voice frequency dividing transmission is supported at the broadcasting end, it is described play end send link parameter that the broadcasting end is supported to The source.
15. voice according to claim 14 divides transmission method, which is characterized in that the broadcasting end receives the source Before the second synchronization link request sent, comprising:
The end that plays receives the audio configuration parameter request that the source is sent；
The end that plays sends the corresponding audio configuration parameter of second frequency band speech signal of broadcasting end support to institute State source；
The end that plays receives the audio configuration parameter of the source transmission used and configures the audio configuration ginseng used Number.
16. voice described in any one of 1 to 15 divides transmission method according to claim 1 characterized by comprising
The broadcasting end disconnects one or more described the according to the link-quality of charge condition or second synchronization link Two synchronization links；Or
Broadcasting end source according to the link quality requests of the charge condition or second synchronization link is established One or more second synchronization link.
17. a kind of source, for voice frequency dividing transmission, the source includes:
Coding module, for being encoded to the first frequency band speech signal and the second frequency band speech signal；
Presynchronization module, the institute after first frequency band speech signal and coding for frame synchronization information to be tagged to after encoding It states in the second frequency band speech signal；And
First sending module, for being sent respectively by the first synchronization link and the second synchronization link with the frame synchronization information The coding after first frequency band speech signal and the coding with the frame synchronization information after described second Frequency band speech signal gives broadcasting end.
18. source according to claim 17 characterized by comprising
The compression ratio of the coding mode of second frequency band speech signal is higher than the coding mode of first frequency band speech signal Compression ratio；Or
The compression ratio of the coding mode of second frequency band speech signal is lower than the coding mode of first frequency band speech signal Compression ratio.
19. source described in 7 or 18 according to claim 1, which is characterized in that the coding module includes:
High-frequency coding module, for encoding to High frequency speech signal, the coding mode to the High frequency speech signal includes CELT coding mode or SBR coding mode；Or
Non- high-frequency coding module, for being encoded to non-High frequency speech signal, to the coding staff of the non-High frequency speech signal Formula includes SILK coding mode, SBC coding mode, AAC coding mode or MP3 coding mode.
20. source described in any one of 7 to 19 according to claim 1, which is characterized in that the presynchronization module includes:
Data frame mark module is a frame for marking the voice signal of any frequency range after the coding detected in default delay Data, at the beginning of the frame synchronization information includes a frame data and finish time.
21. source described in any one of 7 to 20 according to claim 1, which is characterized in that the source further include:
First parameter determination module, the first sending module are sent described with the frame synchronization information by the second synchronization link Second frequency band speech signal after coding is to the broadcasting end branch before playing end, for being sent according to the broadcasting end The link parameter held determines the link parameter used；
Link establishment module, for synchronous described second between the broadcasting end according to the link parameter foundation used Link.
22. source according to claim 21, which is characterized in that the source further include:
Second sending module, the link that first parameter determination module is supported according to the broadcasting end that the broadcasting end is sent Before parameter determines the link parameter used, request for sending the second synchronization link to the broadcasting end；And
First receiving module, for receiving the reply of the second synchronization link request；
First parameter determination module is also used to be determined whether described in foundation according to the reply that second synchronization link is requested Second synchronization link.
23. source described in any one of 7 to 22 according to claim 1, which is characterized in that the source further include:
First judgment module, before the coding module encodes second frequency band speech signal, for according to control Data flow judges whether the broadcasting end supports the voice frequency dividing transmission, and the control data flow is transmitted by async link.
24. source according to claim 23, which is characterized in that the source further includes UUID module, for by certainly It defines Universally Unique Identifier (UUID) logos cent and keeps pouring in defeated service；
The first judgment module includes:
Second judgment module, the control data flow include the value of the customized UUID, if the broadcasting end received The value of the customized UUID is equal to default UUID value, for determining that the voice frequency dividing transmission is supported at the broadcasting end.
25. the source according to claim 23 or 24, which is characterized in that the source further include:
Third sending module: if first judgment module determines that the broadcasting end supports the voice frequency dividing to pass according to control data flow It is defeated, for sending audio configuration parameter request to the broadcasting end；
Second receiving module: for receiving the corresponding audio configuration ginseng of second frequency band speech signal that the broadcasting end is supported Number, the audio configuration parameter includes codec parameters and code rate, and the codec parameters include the coding mode and decoding One or both of mode；And
Second parameter determination module, the corresponding audio of second frequency band speech signal for being supported according to the broadcasting end are matched It sets parameter and determines the audio configuration parameter used；
The third sending module is also used to the audio configuration parameter used being sent to the broadcasting end.
26. source described in any one of 7 to 25 according to claim 1, which is characterized in that the source further include:
First transmission control module, for according to the link-quality of charge condition or second synchronization link disconnect one or A plurality of second synchronization link, the item number of second synchronization link are less than or equal to the frequency of second frequency band speech signal Number of segment；Or
First transmission control module is also used to the link-quality according to the charge condition or second synchronization link Described one or more second synchronization link is established, the item number of second synchronization link is less than or equal to second frequency The band number of section voice signal.
27. a kind of broadcasting end, for voice frequency dividing transmission, the broadcasting end includes:
Third receiving module, for receiving the volume with frame synchronization information respectively by the first synchronization link and the second synchronization link The first frequency band speech signal after code and the second frequency band speech signal after the coding with the frame synchronization information；
Decoder module, for the second frequency range after the first frequency band speech signal and the coding after the coding received Voice signal is decoded；
Synchronization module, for passing through the frame synchronization information to decoded first frequency band speech signal and decoded institute The second frequency band speech signal is stated to synchronize.
28. broadcasting end according to claim 27, which is characterized in that the broadcasting end further include:
One or more different D/A converter modules, for first frequency band speech signal and described second after synchronizing Frequency band speech signal carries out digital-to-analogue conversion respectively；
One or more different amplification modules, for first frequency band speech signal and described second after logarithmic mode conversion Frequency band speech signal amplifies respectively；And
One or more different electroacoustic conversion modules, for amplified first frequency band speech signal and described second Frequency band speech signal carries out electroacoustic conversion respectively.
29. the broadcasting end according to claim 27 or 28, which is characterized in that the broadcasting end further include:
4th sending module, the third receiving module receive the coding for having the frame synchronization information by the second synchronization link Before the second frequency band speech signal afterwards, for sending control data flow to the source, so that the source is according to the control Data flow processed judges whether the broadcasting end supports the voice frequency dividing transmission.
30. broadcasting end according to claim 29, which is characterized in that the broadcasting end further include:
4th receiving module, if the source determines that the broadcasting end supports the voice frequency dividing to pass according to the control data flow The second synchronization link request that is defeated, being sent for receiving the source；And
5th sending module, for sending the reply of the second synchronization link request；
If the voice frequency dividing transmission is supported at the broadcasting end, the 5th sending module is also used to send the broadcasting end and supports Link parameter give the source.
31. broadcasting end according to claim 30, which is characterized in that the broadcasting end further include:
5th receiving module is used for before the 4th receiving module receives the second synchronization link request that the source is sent Receive the audio configuration parameter request that the source is sent；
6th sending module, for sending the corresponding audio configuration ginseng of second frequency band speech signal that the broadcasting end is supported Number is to the source；
5th receiving module is also used to receive the audio configuration parameter used that the source is sent；And
Parameter configuration module, for configuring the audio configuration parameter used.
32. the broadcasting end according to any one of claim 27 to 31, which is characterized in that the broadcasting end further include:
Second transmission control module, for according to the link-quality of charge condition or second synchronization link disconnect one or A plurality of second synchronization link；Or
Second transmission control module is also used to the link-quality according to the charge condition or second synchronization link The source is requested to establish described one or more second synchronization link.
33. a kind of source, for voice frequency dividing transmission characterized by comprising memory and processor；
The memory is coupled with the processor；
The memory, for storing program instruction；
The processor, for calling the program instruction of the memory storage, so that the source executes the claims 1 Transmission method is divided to voice described in any one of 10.
34. a kind of broadcasting end, for voice frequency dividing transmission characterized by comprising memory and processor；
The memory is coupled with the processor；
The memory, for storing program instruction；
The processor, for calling the program instruction of the memory storage, so that the broadcasting end executes aforesaid right and wants Voice described in asking any one of 11 to 16 divides transmission method.
35. a kind of computer readable storage medium characterized by comprising be stored thereon with computer program, feature exists In voice described in any one of realization the claims 1 to 10, which divides, when the computer program is executed by processor passes Transmission method.
36. a kind of computer readable storage medium characterized by comprising be stored thereon with computer program, feature exists In voice described in any one of realization the claims 11 to 16, which divides, when the computer program is executed by processor passes Transmission method.
37. a kind of source circuit characterized by comprising
Encoder, for being encoded to the first frequency band speech signal and the second frequency band speech signal；And
Source controller is connect with the encoder, for sending band respectively by the first synchronization link and the second synchronization link Described in after first frequency band speech signal after having the coding of frame synchronization information and the coding with the frame synchronization information Second frequency band speech signal gives broadcasting terminal circuit.
38. the source circuit according to claim 37, which is characterized in that the source circuit further includes filter, described Filter is connect with the encoder, for separating first frequency band speech signal and second frequency band speech signal.
39. a kind of broadcasting terminal circuit characterized by comprising
Side controller is played, for receiving the volume with frame synchronization information respectively by the first synchronization link and the second synchronization link The first frequency band speech signal after code and the second frequency band speech signal after the coding with the frame synchronization information；And
Decoder is connect with the broadcasting side controller, for first frequency band speech signal received and described Two frequency band speech signals are decoded.
40. broadcasting terminal circuit according to claim 39, which is characterized in that the broadcasting terminal circuit further include:
One or more different digital analog converters, connect with the decoder respectively, for decoded first frequency Section voice signal and decoded second frequency band speech signal carry out digital-to-analogue conversion respectively；
One or more different amplifiers connect with one or more digital analog converters respectively, convert for logarithmic mode Second frequency band speech signal after rear first frequency band speech signal and digital-to-analogue conversion amplifies respectively；And
One or more different electroacoustic transducers are connect, for amplified respectively with one or more amplifiers First frequency band speech signal and amplified second frequency band speech signal carry out electroacoustic conversion respectively.
CN201980000976.XA 2019-05-21 2019-05-21 Voice frequency division transmission method, source terminal, play terminal, source terminal circuit and play terminal circuit Active CN110366752B (en)

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