CN108766453A - Voice de-noising method, device, readable storage medium storing program for executing and mobile terminal - Google Patents
Voice de-noising method, device, readable storage medium storing program for executing and mobile terminal Download PDFInfo
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- CN108766453A CN108766453A CN201810509620.6A CN201810509620A CN108766453A CN 108766453 A CN108766453 A CN 108766453A CN 201810509620 A CN201810509620 A CN 201810509620A CN 108766453 A CN108766453 A CN 108766453A
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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
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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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
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
Abstract
The invention discloses a kind of voice de-noising method, device, readable storage medium storing program for executing and mobile terminal, the method includes：Judge whether current call mode is in headset mode；If so, the background speech signal in acquisition preset time range, the background speech signal is the voice signal that user does not send out collected ambient enviroment when voice；Obtain the call voice signal of user's generation when carrying out voice communication；The background speech signal is removed from the call voice signal, to obtain the call voice signal after noise reduction.According to voice de-noising method provided by the invention, it no longer needs to generating all Speech processings when voice communication, background speech signal need to only be removed from call voice signal, signal processing step is simpler, excellent noise reduction effect, and no longer need to using expensive ANC earphones, cost is lower, and practicability is stronger.
Description
Technical field
The present invention relates to voice communication technical fields, more particularly to a kind of voice de-noising method, device, readable storage medium
Matter and mobile terminal.
Background technology
With the development of science and technology each electronic product is developed rapidly and extensive use, wherein mobile communication class
Electronic product, such as mobile phone, even more have become product indispensable in people's daily life, and people almost can make daily
It is conversed with mobile phone, greatly facilitates people's lives, study and work.
User requires mobile phone call tone quality higher and higher at present, and each mobile phone producer also more focuses on the call matter of voice
Amount, wherein it is one of mode that user is commonly used to carry out call using earphone, can use user in noisy environment into
The normal voice communication of row.But due to headphone quality or environment etc., carries out voice communication using earphone and also will receive environment
The influence of noise, it is therefore necessary to noise reduction process is carried out under headset mode.In the prior art, the side about earphone call noise reduction
There are mainly two types of formulas, and one is one ANC earphones of additional configuration, but the cost of ANC earphones is higher, affects practicability；It is another
Kind it is the processing of all signals collected to earphone, but data processing complex, also affects practicability.
Invention content
For this purpose, one embodiment of the present of invention proposes a kind of voice de-noising method, to solve successfully high, data processing complex
The problem of.
Voice de-noising method according to an embodiment of the invention, including：
Judge whether current call mode is in headset mode；
If so, the background speech signal in acquisition preset time range, the background speech signal is that user does not send out
The voice signal of collected ambient enviroment when voice；
Obtain the call voice signal of user's generation when carrying out voice communication；
The background speech signal is removed from the call voice signal, to obtain the letter of the call voice after noise reduction
Number.
Voice de-noising method according to the ... of the embodiment of the present invention, when determining current call mode and being in headset mode,
The background speech signal in preset time range can be first acquired, then obtains the call of user's generation when carrying out voice communication again
Voice signal is realized noise reduction, is no longer needed to voice by removing the background speech signal from the call voice signal
All Speech processings are generated when call, background speech signal need to only be removed from call voice signal, signal
Processing step is simpler, excellent noise reduction effect, and no longer needs to using expensive ANC earphones, and cost is lower, and practicability is stronger.
In addition, voice de-noising method according to the above embodiment of the present invention, can also have following additional technical characteristic：
Further, in one embodiment of the invention, the method further includes：
If current call mode is in headset mode, judge whether to receive background speech signal acquisition instructions；
If receiving the background speech signal acquisition instructions, judge in preset time range, whether user sends out
Voice；
If it is not, then acquire the voice signal in preset time range, using as the background speech signal.
Further, in one embodiment of the invention, in preset time range, whether user sends out for the judgement
The step of voice includes：
Acquire the speech volume in the preset time range；
Judge whether the speech volume is more than volume threshold；
If the speech volume is less than the volume threshold, judge that user does not send out voice.
Further, in one embodiment of the invention, the method further includes：
The call voice signal of user's generation when carrying out voice communication is obtained, while obtaining ambient noise present；
The background speech signal is removed from the call voice signal, to obtain the letter of the call voice after noise reduction
Number；
Judge whether the noise figure of the ambient noise present is more than noise threshold；
If the noise figure of the ambient noise present is more than the noise threshold, increase the call voice after the noise reduction
Volume in signal.
Further, in one embodiment of the invention, in the call voice signal after the increase noise reduction
The step of volume includes：
The noise figure for obtaining the ambient noise present exceeds the noise plussage of the noise threshold；
Volume value added corresponding with the noise plussage is searched in preset volume increases database；
The volume in the call voice signal after the noise reduction is increased according to the volume value added.
An alternative embodiment of the invention proposes a kind of voice noise reduction device, successfully high, data processing complex to solve
Problem.
Voice noise reduction device according to the ... of the embodiment of the present invention, including：
First judgment module, for judging whether current call mode is in headset mode；
If acquisition module acquires the back of the body in preset time range for judging that current call mode is in headset mode
Scape voice signal, the background speech signal are the voice signal that user does not send out collected ambient enviroment when voice；
Acquisition module, the call voice signal for obtaining user's generation when carrying out voice communication；
Module is removed, for removing the background speech signal from the call voice signal, after obtaining noise reduction
Call voice signal.
Voice noise reduction device according to the ... of the embodiment of the present invention determines current call mode in the first judgment module and is in
When headset mode, acquisition module can first acquire the background speech signal in preset time range, and then acquisition module obtains use again
The call voice signal of family generation when carrying out voice communication, by removing module by the background speech signal from the call
It is removed in voice signal, realizes noise reduction, no longer need to generating all Speech processings when voice communication, it only need to be by background language
Sound signal is removed from call voice signal, and signal processing step is simpler, excellent noise reduction effect, and is no longer needed to using high
Expensive ANC earphones, cost is lower, and practicability is stronger.
An alternative embodiment of the invention also proposes a kind of readable storage medium storing program for executing, is stored thereon with computer program, the journey
The step of above method is realized when sequence is executed by processor.
An alternative embodiment of the invention also proposes a kind of mobile terminal, including touch screen, memory, processor and deposits
The computer program that can be run on a memory and on a processor is stored up, the processor realizes above-mentioned side when executing described program
Method.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or embodiment through the invention is recognized.
Description of the drawings
In description of the above-mentioned and/or additional aspect and advantage of the embodiment of the present invention from combination following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the flow chart of voice de-noising method according to a first embodiment of the present invention；
Fig. 2 is the flow chart of voice de-noising method according to a second embodiment of the present invention；
Fig. 3 is the structural schematic diagram of voice noise reduction device according to a third embodiment of the present invention；
Fig. 4 is the structural schematic diagram of voice noise reduction device according to a fourth embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the voice de-noising method that first embodiment of the invention proposes, the method includes：
S101, judges whether current call mode is in headset mode；
Wherein, voice de-noising method provided in this embodiment be applied to mobile terminal, the mobile terminal be, for example, mobile phone or
Tablet computer is illustrated by taking mobile phone as an example in the present embodiment, and current logical of detection can be gone by way of detecting electric signal
Whether words pattern is in handset module, wherein earphone can be line control earphone, can also be bluetooth headset.
S102, if so, acquisition preset time range in background speech signal, the background speech signal be user not
Send out the voice signal of collected ambient enviroment when voice；
Wherein, if current call mode is in headset mode, the background sound in preset time range can first be acquired
Signal, preset time are, for example, 30 seconds, i.e., when determining current call mode and being in headset mode, can first acquire 30 seconds
The voice signal of ambient enviroment when user does not send out voice, as background speech signal TX1.It specifically can be by mobile phone
The voice signal of ambient enviroment when MIC goes acquisition user not send out voice.
As a specific example, since the call environment residing for user can often change, in the specific implementation, if
Current call mode is in headset mode, then also determines whether to receive background speech signal acquisition instructions；
Wherein, background speech signal acquisition instructions can be that corresponding software is arranged on mobile phone, when user is soft for this
When part is operated accordingly, background speech signal acquisition instructions can be generated.
If receiving the background speech signal acquisition instructions, judge in preset time range, whether user sends out
Voice；If user does not send out voice, the voice signal in preset time range is acquired, using as the background speech signal.
Judge in preset time range, whether user sends out voice and various ways realization may be used, and one of which can
The embodiment of choosing is as follows：
Acquire the speech volume in the preset time range；
Judge whether the speech volume is more than volume threshold；
If the speech volume is less than the volume threshold, judge that user does not send out voice.
Therefore, it when it is implemented, when user is in environment A, needs first to send out background speech signal acquisition instructions, so
Judge whether user has issued the voice more than volume threshold afterwards, if not having, illustrates that user does not send out voice, then can at this time
Current voice signal is acquired, using as background speech signal.Similarly, it after user enters environment B from environment A, needs again
Background speech signal acquisition instructions are sent out, to acquire background speech signal.
S103 obtains the call voice signal of user's generation when carrying out voice communication；
Wherein, the MIC on mobile phone is again may be by go to obtain the call voice of user's generation when carrying out voice communication
Signal TX0；User's call voice signal of generation when carrying out voice communication had both contained background speech signal TX1, also included
The voice signal for the sound that user sends out.
S104 removes the background speech signal, from the call voice signal to obtain the call language after noise reduction
Sound signal.
Wherein, by voice process technology, by background speech signal TX1 to be removed in call voice signal TX0,
It can obtain the call voice signal after noise reduction.
It, can be first when determining current call mode and being in headset mode according to the voice de-noising method of the present embodiment
The background speech signal in preset time range is acquired, then obtains the call voice of user's generation when carrying out voice communication again
Signal is realized noise reduction, is no longer needed to voice communication by removing the background speech signal from the call voice signal
When generate all Speech processings, only background speech signal need to be removed from call voice signal, signal processing
Step is simpler, excellent noise reduction effect, and no longer needs to using expensive ANC earphones, and cost is lower, and practicability is stronger.
Referring to Fig. 2, the voice de-noising method that second embodiment of the invention proposes, including：
S201, judges whether current call mode is in headset mode；
S202, if so, acquisition preset time range in background speech signal, the background speech signal be user not
Send out the voice signal of collected ambient enviroment when voice；
S203, obtains the call voice signal of user's generation when carrying out voice communication, while obtaining ambient noise present；
Wherein, in the present embodiment, while obtaining user's call voice signal of generation when carrying out voice communication also
Ambient noise present is obtained, ambient noise present can be specifically the decibel value of ambient noise present, can specifically pass through hand
MIC on machine is separately provided an ambient noise harvester and goes to obtain the decibel value of ambient noise present.
S204 removes the background speech signal, from the call voice signal to obtain the call language after noise reduction
Sound signal；
S205 judges whether the noise figure of the ambient noise present is more than noise threshold；
S206 increases logical after the noise reduction if the noise figure of the ambient noise present is more than the noise threshold
Volume in language sound signal.
Wherein, if the noise figure of ambient noise present is, for example, 100 decibels, noise threshold is, for example, 90 decibels, then currently
The noise figure of ambient noise is more than the noise threshold, the volume in the call voice signal after noise reduction is will increase, to ensure to use
Family has good communication effect in noisy environment.
Specifically, following manner progress may be used in the volume increased in the call voice signal after noise reduction：
The noise figure for obtaining the ambient noise present exceeds the noise plussage of the noise threshold；
Volume value added corresponding with the noise plussage is searched in preset volume increases database；
Wherein, volume increases the volume value added stored in database corresponding to different noise plussages.
The volume in the call voice signal after the noise reduction is increased according to the volume value added.
Wherein, the incrementss of volume can be adjusted according to default rule, realizes that ladder is adjusted, ensure that volume increases
Big effect.
Method provided in this embodiment can be when ambient noise present be larger, automatically on the basis of a upper embodiment
Increase the volume in the call voice signal after noise reduction, ensures that user has good communication effect in noisy environment, promoted
The usage experience of user.
It should be noted that the present embodiment stressed is difference with a upper embodiment, between each embodiment
The identical non-repeated description in similar part, can be with cross-reference.
Referring to Fig. 3, it is based on same inventive concept, and the voice noise reduction device that third embodiment of the invention proposes, the dress
Set including：
First judgment module 10, for judging whether current call mode is in headset mode；
If acquisition module 20 acquires for judging that current call mode is in headset mode in preset time range
Background speech signal, the background speech signal are the voice signal that user does not send out collected ambient enviroment when voice；
Acquisition module 30, the call voice signal for obtaining user's generation when carrying out voice communication；
Module 40 is removed, for removing the background speech signal from the call voice signal, to obtain noise reduction
Call voice signal afterwards.
In the present embodiment, described device further includes：
Second judgment module 50 judges whether to receive background if being in headset mode for current call mode
Speech signal collection instructs；
If third judgment module 60 judges for receiving the background speech signal acquisition instructions in preset time
In range, whether user sends out voice；
If the acquisition module 20 is additionally operable in preset time range, user does not send out voice, then acquires preset time
Voice signal in range, using as the background speech signal.
In the present embodiment, the third judgment module 60 includes：
Collecting unit 61, for acquiring the speech volume in the preset time range；
Judging unit 62, for judging whether the speech volume is more than volume threshold；
Judging unit 63 judges that user does not send out voice if being less than the volume threshold for the speech volume.
The voice noise reduction device that the present embodiment proposes, determines current call mode in the first judgment module and is in earphone
When pattern, acquisition module can first acquire the background speech signal in preset time range, and then acquisition module obtains user and exists again
The call voice signal for carrying out generation when voice communication, by removing module by the background speech signal from the call voice
It is removed in signal, realizes noise reduction, no longer need to generating all Speech processings when voice communication, background sound need to only believed
It removes number from call voice signal, signal processing step is simpler, excellent noise reduction effect, and no longer needs to using expensive
ANC earphones, cost is lower, and practicability is stronger.
Referring to Fig. 4, it is based on same inventive concept, the voice noise reduction device that fourth embodiment of the invention proposes, including：
First judgment module 10, for judging whether current call mode is in headset mode；
Acquisition module 20 acquires the back of the body in preset time range if being in headset mode for current call mode
Scape voice signal, the background speech signal are the voice signal that user does not send out collected ambient enviroment when voice；
Acquisition module 30, the call voice signal for obtaining user's generation when carrying out voice communication, while obtaining and working as
Preceding ambient noise；
Module 40 is removed, for removing the background speech signal from the call voice signal, to obtain noise reduction
Call voice signal afterwards；
Second judgment module 50, for judging whether the noise figure of the ambient noise present is more than noise threshold；
Volume increases module 60, if the noise figure for the ambient noise present is more than the noise threshold, increases
The volume in call voice signal after the noise reduction.
In the present embodiment, the volume increases module 60 and includes：
Acquiring unit 61, noise of the noise figure beyond the noise threshold for obtaining the ambient noise present exceed
Amount；
Searching unit 62, for searching volume corresponding with the noise plussage in increasing database in preset volume
Value added；
Increasing unit 63, for according to the volume value added to the volume in the call voice signal after the noise reduction into
Row increases.
The technical characteristic and technique effect for the voice noise reduction device that the present embodiment proposes are proposed with second embodiment of the invention
Method it is identical, it will not be described here.
In addition, the embodiment of the present invention also proposes a kind of readable storage medium storing program for executing, it is stored thereon with computer program, the program
The step of above method is realized when being executed by processor.
In addition, the embodiment of the present invention also proposes a kind of mobile terminal, including touch screen, memory, processor and deposit
The computer program that can be run on a memory and on a processor is stored up, the processor realizes above-mentioned side when executing described program
Method.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or passing
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.
The more specific example (non-exhaustive list) of computer-readable medium includes following：It is connected up with one or more
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of voice de-noising method, which is characterized in that the method includes：
Judge whether current call mode is in headset mode；
If so, the background speech signal in acquisition preset time range, the background speech signal is that user does not send out voice
When collected ambient enviroment voice signal；
Obtain the call voice signal of user's generation when carrying out voice communication；
The background speech signal is removed from the call voice signal, to obtain the call voice signal after noise reduction.
2. voice de-noising method according to claim 1, which is characterized in that the method further includes：
If current call mode is in headset mode, judge whether to receive background speech signal acquisition instructions；
If receiving the background speech signal acquisition instructions, judge in preset time range, whether user sends out voice；
If it is not, then acquire the voice signal in preset time range, using as the background speech signal.
3. voice de-noising method according to claim 2, which is characterized in that the judgement in preset time range, is used
The step of whether family sends out voice include：
Acquire the speech volume in the preset time range；
Judge whether the speech volume is more than volume threshold；
If the speech volume is less than the volume threshold, judge that user does not send out voice.
4. voice de-noising method according to claim 1, which is characterized in that the method further includes：
The call voice signal of user's generation when carrying out voice communication is obtained, while obtaining ambient noise present；
The background speech signal is removed from the call voice signal, to obtain the call voice signal after noise reduction；
Judge whether the noise figure of the ambient noise present is more than noise threshold；
If the noise figure of the ambient noise present is more than the noise threshold, increase the call voice signal after the noise reduction
In volume.
5. voice de-noising method according to claim 4, which is characterized in that the call voice increased after the noise reduction
The step of volume in signal includes：
The noise figure for obtaining the ambient noise present exceeds the noise plussage of the noise threshold；
Volume value added corresponding with the noise plussage is searched in preset volume increases database；
The volume in the call voice signal after the noise reduction is increased according to the volume value added.
6. a kind of voice noise reduction device, which is characterized in that described device includes：
First judgment module, for judging whether current call mode is in headset mode；
If acquisition module acquires the background language in preset time range for judging that current call mode is in headset mode
Sound signal, the background speech signal are the voice signal that user does not send out collected ambient enviroment when voice；
Acquisition module, the call voice signal for obtaining user's generation when carrying out voice communication；
Module is removed, it is logical after noise reduction to obtain for removing the background speech signal from the call voice signal
Language sound signal.
7. voice noise reduction device according to claim 6, which is characterized in that described device further includes：
Second judgment module judges whether to receive background sound letter if being in headset mode for current call mode
Number acquisition instructions；
If third judgment module judges in preset time range for receiving the background speech signal acquisition instructions,
Whether user sends out voice；
If the acquisition module is additionally operable in preset time range, user does not send out voice, then acquires in preset time range
Voice signal, using as the background speech signal.
8. voice noise reduction device according to claim 7, which is characterized in that the third judgment module includes：
Collecting unit, for acquiring the speech volume in the preset time range；
Judging unit, for judging whether the speech volume is more than volume threshold；
Judging unit judges that user does not send out voice if being less than the volume threshold for the speech volume.
9. a kind of readable storage medium storing program for executing, is stored thereon with computer program, which is characterized in that real when the program is executed by processor
The now method as described in claim 1-5 any one.
10. a kind of mobile terminal, including touch screen, memory, processor and storage are on a memory and can be on a processor
The computer program of operation, which is characterized in that the processor is realized when executing described program as claim 1 to 5 is any one
Method described in.
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Cited By (6)
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| CN109933691A (en) * | 2019-02-11 | 2019-06-25 | 北京百度网讯科技有限公司 | Method, apparatus, equipment and storage medium for content retrieval |
| CN110689901A (en) * | 2019-09-09 | 2020-01-14 | 苏州臻迪智能科技有限公司 | Voice noise reduction method and device, electronic equipment and readable storage medium |
| CN111599364A (en) * | 2020-04-03 | 2020-08-28 | 厦门快商通科技股份有限公司 | Voice recognition noise reduction method, system, mobile terminal and storage medium |
| CN111863001A (en) * | 2020-06-17 | 2020-10-30 | 广州华燎电气科技有限公司 | Method for inhibiting background noise in multi-party call system |
| CN113286228A (en) * | 2021-05-28 | 2021-08-20 | 北京千丁互联科技有限公司 | Building intercom audio frequency automatic adjusting method and device and building intercom equipment |
| CN113891207A (en) * | 2021-09-24 | 2022-01-04 | 深圳艾创力科技有限公司 | ANC noise reduction method and system for neck-wearing voice interaction earphone |
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