CN105023579A - Voice coding realization method and apparatus in voice communication, and communication terminal - Google Patents
Voice coding realization method and apparatus in voice communication, and communication terminal Download PDFInfo
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- CN105023579A CN105023579A CN201410183176.5A CN201410183176A CN105023579A CN 105023579 A CN105023579 A CN 105023579A CN 201410183176 A CN201410183176 A CN 201410183176A CN 105023579 A CN105023579 A CN 105023579A
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Abstract
The invention discloses a voice coding realization method and apparatus in voice communication, and a communication terminal, relating to the voice communication technical field. The method comprises: detecting the volume of a voice in voice communication; determining whether the volume of a voice goes up; and increasing the rate of a voice encoder if the volume of a voice rises. People are tend to raise the voice when telephone signals are poor, and when the voice is detected to rise, the rate of an encoder is increased, thereby automatically adjusting a coding rate, and improving user experience.
Description
Technical field
The present invention relates to voice communication technology field, particularly relate to voice coding implementation method, device and communication terminal in a kind of voice communication.
Background technology
VoLTE (Voice over LTE, LET voice) technology based on VoIP (Voice over IP, ip voice) is the important way of following LTE (Long Term Evolution, Long Term Evolution) system provided voice business.Speech encoding rate and the performance such as voice quality, time delay have comparatively Important Relations.If adopt the coded system voice quality of two-forty to improve, but require more system resource; If adopt the coded system of low rate, system resource can be saved, but voice quality can reduce.If suitable speech encoding rate is selected on system self-adaption ground, then can utilize system resource effective and reasonablely, improve the capacity of network.
Summary of the invention
The present inventor finds to have problems in above-mentioned prior art, and therefore proposes a kind of new technical scheme at least one problem in described problem.
An object of the present invention is to provide a kind of technical scheme for voice coding in voice communication.
According to a first aspect of the invention, provide voice coding implementation method in a kind voice communication, comprising:
The volume of voice is detected in voice communication;
Judge whether the volume of described voice becomes large;
If the volume of described voice becomes large, then increase the speed of speech coder.
Alternatively, judge whether the volume of described voice becomes to comprise greatly:
The volume of more described voice and the mean value of described voice, if the volume of described voice predetermined threshold larger than the mean value of described voice, then judge that the volume of described voice becomes large.
Alternatively, the method also comprises:
The smoothness of voice is detected in voice communication;
When network occurs congested, reduce the speed that smoothness is greater than the speech coder of the voice of predetermined threshold.
Alternatively, the smoothness detecting voice in voice communication comprises:
The smoothness of voice is judged by detecting voice signal wave-shape amplitude fluctuation size.
Alternatively, judge that the smoothness of voice comprises by detecting voice signal wave-shape amplitude fluctuation size:
The variance of the amplitude of speech waveform in statistics voice call, and divided by time span with standardization speech volume variance, if this standardization speech volume variance is less, then illustrate that voice call is more steady.
According to a further aspect in the invention, the sound encoding device in a kind of voice communication is provided, comprises:
Audio input/output device, volume improve decision device, voice coder/decoder, end side controller;
Wherein, audio input/output device, for the collection/broadcasting of sound signal, sends to volume to improve decision device and voice coder/decoder by the voice signal of collection;
Volume improves decision device, for receiving the voice signal from audio input/output device, judges whether the voice conversed improve, if it is determined that voice improve, then sends code rate and improves instruction;
Voice coder/decoder, for receiving from audio input/output device voice signal, carries out coding/decoding to voice signal; Receive the control adjustment coding/decoding speed from end side controller;
End side controller, for receiving the code rate raising instruction improving decision device from volume, controlling voice coder/decoder and improving speech encoding rate.
Alternatively, volume improves the volume of the more described voice of decision device and the mean value of described voice, if the volume of described voice predetermined threshold larger than the mean value of described voice, then judges that the volume of described voice becomes large.
Alternatively, this device also comprises: volume smoothness decision device, for receiving the voice signal from audio input/output device, judging that whether the voice conversed are steady, the voice plateau of voice call is sent to end side controller;
Network controls device, for the state of Sampling network, judges network load, when network occurs congested, sends network congestion message to described end side controller;
End side controller, also for receiving the plateau of voice, when receiving the network congestion message from described end side controller, reduces the code rate of subscribing for a long time and being in the voice of plateau.
Alternatively, volume smoothness decision device judges the smoothness of voice by detecting voice signal wave-shape amplitude fluctuation size.
According to another aspect of the invention, also provide a kind of communication terminal, comprise the above-mentioned sound encoding device stated.
An advantage of the present invention is, automatically adjusting the speed of voice coding, can adjust speech encoding rate adaptively, providing the experience of user by detecting speech volume.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
What form a part for instructions drawings describes embodiments of the invention, and together with the description for explaining principle of the present invention.
With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:
Fig. 1 is the process flow diagram of an embodiment according to voice coding implementation method in voice communication of the present invention;
Fig. 2 is the process flow diagram according to another embodiment of voice coding implementation method in voice communication of the present invention;
Fig. 3 is the structural drawing according to an embodiment of voice coding implement device in sound communication of the present invention;
Fig. 4 is the circuit diagram that a volume improves a decision device example;
Fig. 5 is the structural drawing according to another embodiment of voice coding implement device in sound communication of the present invention.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing instructions.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 is the process flow diagram of an embodiment according to voice coding implementation method in voice communication of the present invention.
As shown in Figure 1, step 102, detects the volume of voice in voice communication.In voice call, receive the voice of call, detect the volume of voice, the volume of voice can be determined by detecting speech waveform amplitude.
Step 104, judges whether the volume of voice becomes large.Judge whether the volume of voice becomes large by the amplitude detecting speech waveform.Voice signal wave-shape amplitude is larger, then sound is higher.
Step 106, if the volume of voice becomes large, then increases the speed of speech coder.If the basic held stationary of the volume of voice, then do not increase the speed of speech coder.
In above-described embodiment, automatically the speed of voice coding is adjusted by detecting speech volume, utilize people telephone signal unpleasant unclear time often increase the custom of one's voice in speech, when detecting that sound of speaking improves, improve the speed of scrambler, speech encoding rate can be adjusted adaptively, the experience of user is provided.
In one embodiment, the average volume value of statistics voice call, or the average volume value of voice call in the past in the schedule time, if the volume of current period voice call is larger than average volume value, and exceed predetermined threshold value, then judge that the volume of voice becomes large.
Fig. 2 is the process flow diagram according to another embodiment of voice coding implementation method in voice communication of the present invention.
Step 202, detects the volume of voice in voice communication.
Step 204, judges whether the volume of voice becomes large, if the volume of voice becomes large, then continues step 206, otherwise, continue step 208.
Step 206, if the volume of voice becomes large, then increases the speed of speech coder.
Step 208, if the volume of voice does not become large, does not then increase the speed of voice coding.
Step 210, judges whether network load becomes heavy, if so, then continues step 212, otherwise, continue step 214.
Step 212, reduces the speed of the speech coder of voice long-term smooth.Whether realize voice by the amplitude detecting speech waveform to judge stably, what the fluctuation of voice signal wave-shape amplitude was little thinks steadily.Such as, the variance of the amplitude of speech waveform in statistics voice call, and divided by time span with standardization speech volume variance, if this standardization speech volume variance is less, then illustrate that voice call is more steady.
Step 214, does not reduce the speed of speech coder.
Above mentioned embodiment providing one can adaptive speech encoding rate method of adjustment, utilize people telephone signal unpleasant unclear time often increase the custom of one's voice in speech, when detecting that sound of speaking improves, improve the speed of scrambler, time heavy with suitable network load, reduce continuously the speed of the long-time stable subscriber-coded device of volume.
The method can be applied in the field of various voice communication, is particularly suitable for moving communicating field.
Fig. 3 is the structural drawing according to an embodiment of voice coding implement device in sound communication of the present invention.As shown in Figure 3, this device comprises: as shown in Figure 3, and this device comprises: audio input/output device 31, volume improve decision device 32, voice coder/decoder 33, end side controller 34.
Wherein, audio input/output device 31 is for the collection/broadcasting of sound signal, audio input/output device 31 improves decision device 32 with volume, voice coder/decoder 33 is connected, and is sent to by the voice signal of collection volume to improve decision device 32 and voice coder/decoder 33.
Volume improves decision device 32 for received speech signal, judges whether the voice conversed improve, if it is determined that voice improve, then sends code rate and improves instruction.Volume improves decision device 32 and is connected with audio input/output device 31, end side controller 34.
Voice coder/decoder 33, for received speech signal, carries out coding/decoding to voice signal, and voice coder/decoder 33 is connected with audio input/output device 31, end side controller 34.
The judgement of end side controller 34 for responsible audio signal characteristic, the adjustment control etc. of speech encoding rate.End side controller 34 receives the code rate raising instruction improving decision device 32 from volume, controls voice coder/decoder 33 and improves speech encoding rate.
Namely volume improves decision device can pass through software simulating, also can pass through hardware implementing.Introduce a kind of circuit diagram of hardware implementing example below.
Fig. 4 is the circuit diagram that a volume improves a decision device example.As shown in Figure 4, this volume raising decision device comprises: operational amplifier U41, comparer U42, diode D41, electric capacity C41, resistance R41, resistance R42 and resistance R43.The effect of integrated circuit U41 is amplified, and amplified by signal and be easy to detect; D41, R43 and C41 form the size that detecting circuit realizes measuring speech waveform amplitude; U42 is comparer, amplitude and reference value is compared.
Fig. 5 is the structural drawing according to another embodiment of voice coding implement device in sound communication of the present invention.As shown in Figure 5, this device comprises: audio input/output device 51, volume improve decision device 52, volume smoothness decision device 55, voice coder/decoder 53, end side controller 54, network controls device 56.
Wherein, audio input/output device 51 is for the collection/broadcasting of sound signal, and audio input/output device 51 and volume raising decision device 52, volume smoothness decision device 55, voice coder/decoder 53 are connected.
Volume improves decision device 52 for judging whether the voice conversed improve, and volume improves decision device 52 and is connected with audio input/output device 51, end side controller 54.
Volume smoothness decision device 54, for receiving the voice signal from audio input/output device, judges that whether the voice conversed are steady, the voice plateau of voice call is sent to end side controller 54.Volume smoothness decision device 54 is connected with audio input/output device 51, end side controller 54.
Voice coder/decoder 53 is for carrying out coding/decoding to voice signal, and voice coder/decoder 53 is connected with audio input/output device 51, end side controller 54.
The judgement of end side controller 54 for responsible audio signal characteristic, the adjustment etc. of speech encoding rate, end side controller 54 and volume raising decision device 52, volume smoothness decision device 55, voice coder/decoder 53, end side controller 54, network controls device 56 are connected.
Network controls device 56, for the state of Sampling network, judges network load, when network occurs congested, sends network congestion message to described end side controller.Network controls device 56 is connected with end side controller 54.End side controller 54, also for receiving the plateau of voice, when receiving the network congestion message from described end side controller, reduces the code rate of subscribing for a long time and being in the voice of plateau
Introduce one below and detect the application examples that voice improve the speed of scrambler.
1) when detecting that sound of speaking improves, the speed of scrambler is improved;
The volume of a) being spoken by speech volume determining device detection user;
B) terminal detection user speaks when sound improves needs to improve code rate to network-feedback;
C) network is according to network load, determines whether improve code rate;
If d) network load allows, code rate is improved in network advertisement opposite end.
Introduce one is reduced continuously the speed of the long-time stable subscriber-coded device of volume application examples when network load is heavy below.
The volume of a) being spoken by speech volume determining device detection user, and within a period of time, whether steadily add up;
If b) network load is overweight, determine to reduce code rate;
C) select the most stable user's changing down of voice call speech change, notification terminal reduces code rate;
Utilize people telephone signal unpleasant unclear time often increase the custom of one's voice in speech, take following steps:
1) when detecting that sound of speaking improves, the speed of scrambler is improved;
2) when network load is heavy, the speed of the long-time stable subscriber-coded device of volume is reduced continuously;
By such mode, providing can adaptive speech encoding rate Adjusted Option.
So far, described in detail according to voice coding implementation method, device and communication terminal in voice communication of the present invention.In order to avoid covering design of the present invention, details more known in the field are not described.Those skilled in the art, according to description above, can understand how to implement technical scheme disclosed herein completely.
Method and system of the present invention may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
Although be described in detail specific embodiments more of the present invention by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (10)
1. a voice coding implementation method in voice communication, is characterized in that, comprising:
The volume of voice is detected in voice communication;
Judge whether the volume of described voice becomes large;
If the volume of described voice becomes large, then increase the speed of speech coder.
2. method according to claim 1, is characterized in that, judges whether the volume of described voice becomes and comprises greatly:
The volume of more described voice and the mean value of described voice, if the volume of described voice predetermined threshold larger than the mean value of described voice, then judge that the volume of described voice becomes large.
3. method according to claim 1, is characterized in that, also comprises:
The smoothness of voice is detected in voice communication;
When network occurs congested, reduce the speed that smoothness is greater than the speech coder of the voice of predetermined threshold.
4. method according to claim 3, is characterized in that, the described smoothness detecting voice in voice communication comprises:
The smoothness of voice is judged by detecting voice signal wave-shape amplitude fluctuation size.
5. method according to claim 4, is characterized in that, judges that the smoothness of voice comprises by detecting voice signal wave-shape amplitude fluctuation size:
The variance of the amplitude of speech waveform in statistics voice call, and divided by time span with standardization speech volume variance, if this standardization speech volume variance is less, then illustrate that voice call is more steady.
6. the sound encoding device in voice communication, is characterized in that, comprising:
Audio input/output device, volume improve decision device, voice coder/decoder, end side controller;
Wherein, described audio input/output device, for the collection/broadcasting of sound signal, sends to described volume to improve decision device and described voice coder/decoder by the voice signal of collection;
Described volume improves decision device, for receiving the voice signal from described audio input/output device, judges whether the voice conversed improve, if it is determined that voice improve, then sends code rate and improves instruction;
Described voice coder/decoder, for receiving from described audio input/output device voice signal, carries out coding/decoding to voice signal; Receive the control adjustment coding/decoding speed from described end side controller;
Described end side controller, for receiving the code rate raising instruction improving decision device from described volume, controlling described voice coder/decoder and improving speech encoding rate.
7. sound encoding device according to claim 6, it is characterized in that, described volume improves the volume of the more described voice of decision device and the mean value of described voice, if the volume of described voice predetermined threshold larger than the mean value of described voice, then judges that the volume of described voice becomes large.
8. sound encoding device according to claim 6, is characterized in that, also comprises:
Volume smoothness decision device, for receiving the voice signal from described audio input/output device, judging that whether the voice conversed are steady, the voice plateau of voice call is sent to described end side controller;
Network controls device, for the state of Sampling network, judges network load, when network occurs congested, sends network congestion message to described end side controller;
Described end side controller, also for receiving the plateau of voice, when receiving the network congestion message from described network controls device, reduces the code rate of subscribing for a long time and being in the voice of plateau.
9. sound encoding device according to claim 8, is characterized in that, described volume smoothness decision device judges the smoothness of voice by detecting voice signal wave-shape amplitude fluctuation size.
10. a communication terminal, is characterized in that, comprises as the sound encoding device in claim 6 to 9 as described in any one.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109102816B (en) * | 2018-08-14 | 2020-12-29 | Oppo广东移动通信有限公司 | Encoding control method and device and electronic equipment |
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Application publication date: 20151104 |