CN107978320A - One kind call method of adjustment, device, equipment and medium - Google Patents
One kind call method of adjustment, device, equipment and medium Download PDFInfo
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- CN107978320A CN107978320A CN201711215808.1A CN201711215808A CN107978320A CN 107978320 A CN107978320 A CN 107978320A CN 201711215808 A CN201711215808 A CN 201711215808A CN 107978320 A CN107978320 A CN 107978320A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001755 vocal effect Effects 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000006854 communication Effects 0.000 claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims description 11
- 239000000284 extract Substances 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 2
- 241001269238 Data Species 0.000 abstract description 4
- 230000015654 memory Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L17/00—Speaker identification or verification techniques
- G10L17/02—Preprocessing operations, e.g. segment selection; Pattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal components; Feature selection or extraction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention discloses one kind call method of adjustment, device, equipment and medium.This method includes：In communication process, total audio data are gathered by voice collection device；According to the vocal print feature of caller, caller's voice data is filtered out in the total audio data；Caller's voice data is sent to those who answer.The embodiment of the present invention realizes fall the acoustic filtering in total audio data in addition to caller's voice, only caller's voice data is sent to those who answer, ensure that sound that those who answer hears only has the voice of caller, there is no the various voice datas of caller's local environment, ensure call clarity, improve speech quality.
Description
Technical field
The present embodiments relate to voice process technology, more particularly to a kind of call method of adjustment, device, equipment and
Medium.
Background technology
At present, mobile phone communication is very universal, and the call of high quality is that people are pursued, and ambient noise directly affects call
How quality, it is increasingly important reduce influence of the ambient noise to speech quality.
In the prior art, in order to improve speech quality, usually In Call is improved using the mode of automatic growth control.
This mode also improves environmental audio amount, causes speech quality to reduce, it is impossible to avoid completely while In Call is increased
Influence of the ambient noise to call, the mode of call lifting In Call cause to damage to caller's hearing for a long time.
The content of the invention
The embodiment of the present invention provides a kind of call method of adjustment, device, equipment and medium, solves existing intelligent terminal and exists
During call, it is impossible to the problem of avoiding influence of the ambient noise to call completely, cause speech quality poor, damaging caller's hearing.
In a first aspect, an embodiment of the present invention provides one kind call method of adjustment, this method includes：
In communication process, total audio data are gathered by voice collection device；
According to the vocal print feature of caller, caller's voice data is filtered out in the total audio data；
Caller's voice data is sent to those who answer.
Further, this method further includes：
The voice signal of collection caller in advance, extracts the corresponding vocal print feature of the voice signal, as caller's
Vocal print feature.
Further, the vocal print feature is frequency, amplitude and tone color, and correspondingly, the vocal print according to caller is special
Sign, filters out caller's voice data in the total audio data, including：
According to the frequency of caller, amplitude and tone color, filtered out in the total audio data with the frequency, amplitude
With caller's voice data of tone color.
Further, the vocal print feature is Mel-cepstrum.
Further, the voice signal of the collection caller in advance, including：
According to the highest voice signal of the frequency of occurrences in history voice signal, the voice signal of caller is determined.
Further, before filtering out caller's VoP in total VoP, further include：
Judge whether interference guard switch is opened；
If interference guard switch is opened, start and filter out caller's VoP in total VoP
Function.
Further, before filtering out caller's VoP in total VoP, further include：
Whether the amplitude characteristic for detecting the vocal print feature of environmental audio exceedes predetermined threshold value；
When being, start and caller's VoP is filtered out in total VoP.
Second aspect, the embodiment of the present invention additionally provide a kind of call adjustment assembling device, which includes：
Total audio data acquisition module, in communication process, total audio data to be gathered by voice collection device；
Filtering module, for the vocal print feature according to caller, the caller is filtered out in the total audio data
Voice data；
Sending module, for sending caller's VoP to those who answer.
The third aspect, the embodiment of the present invention additionally provide a kind of equipment, which includes：
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are performed by one or more of processors so that one or more of processing
Device realizes the call method of adjustment as described in any in first aspect of the embodiment of the present invention.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer-readable recording medium, are stored thereon with computer
Program, realizes the call method of adjustment as described in any in first aspect of the embodiment of the present invention when which is executed by processor.
The embodiment of the present invention filters out caller's voice data according to the vocal print feature of caller in total audio data,
Realize fall the acoustic filtering in total audio data in addition to caller's voice, only send caller's voice data to connecing
Hearer, ensures that sound that those who answer hears only has the voice of caller, without the various voice datas of caller's local environment, protects
Card call clarity, improves speech quality.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of flow diagram for call method of adjustment that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of method of adjustment of conversing provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram for call method of adjustment that the embodiment of the present invention three provides；
Fig. 4 is a kind of structure diagram for call adjusting apparatus that the embodiment of the present invention four provides；
Fig. 5 is a kind of structure diagram for equipment that the embodiment of the present invention five provides.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, technical scheme is clearly and completely described by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, belong to the scope of protection of the invention.
Embodiment one
Fig. 1 is a kind of flow chart for call method of adjustment that the embodiment of the present invention one provides.The technical solution of the present embodiment
It can be adapted for earphone call, the call of intelligent terminal receiver, the situation of intelligent terminal loudspeaker call.This method can be by this hair
One kind that bright embodiment provides converses adjusting apparatus to perform, which can be realized by the way of software and/or hardware, and
Intelligent terminal is configured at, as applied in smart mobile phone, tablet, laptop or wearing smart machine.This method specifically includes
Following operation：
S110, in communication process, pass through voice collection device gather total audio data.
Voice collection device for example can be microphone, loudspeaker or any one can gather the audio-frequency electric of voice data
Road.Total audio data are gathered by voice collection device.Total audio data include the environmental audio of caller's local environment and lead to
Words person's audio.
S120, the vocal print feature according to caller, filter out caller's voice data in the total audio data.
Specifically, the voice signal of caller can be gathered in advance, extracts the corresponding vocal print feature of the voice signal, made
For the vocal print feature of caller.Wherein, the voice signal of the collection caller in advance, can include：Believed according to history voice
The highest voice signal of the frequency of occurrences in number, determines the voice signal of caller.History voice signal for example can be call record
Speech message in sound file or chat software.The voice signal of collection caller in advance, can also include：Direct intercommunication Mike
Wind carries out the voice signal of typing caller.
Wherein, the vocal print feature can be Mel-cepstrum, perceive linear predictor coefficient or depth characteristic.Specifically
Ground, the process of extraction Mel-cepstrum feature can be：First, preemphasis, framing and adding window are carried out to voice, to strengthen language
Sound signal performance such as signal-to-noise ratio, processing accuracy etc..Then, to each short-time analysis window, obtained by Fast Fourier Transform (FFT)
To corresponding frequency spectrum.Then, frequency spectrum above is obtained into Meier frequency spectrum by Meier wave filter group.Finally, on Meier frequency spectrum
Face carries out cepstral analysis, such as takes the logarithm, and does inverse transformation by discrete cosine transform, takes the after discrete cosine transform the 2nd to arrive
13rd coefficient is as Mel-cepstrum.
According to caller's vocal print feature, the voice data with caller's vocal print feature is filtered out in total voice data.
Exemplarily, the language with this feature can be filtered out in total voice data according to the Mel-cepstrum feature of caller
Voice data of the sound as caller.
S130, send caller's voice data to those who answer.
Exemplarily, caller's voice data can be encrypted through overcompression, is then transmitted through the network to those who answer, protected
Demonstrate,prove the speed and security of data transfer.
The present embodiment filters out caller's voice data in total audio data, realizes according to the vocal print feature of caller
Acoustic filtering in total audio data in addition to caller's voice is fallen, only sends caller voice data to answering
Person, ensures that sound that those who answer hears only has the voice of caller, without the various voice datas of caller's local environment, ensures
Call clarity, improves speech quality.
Embodiment two
Fig. 2 is a kind of flow chart of method of adjustment of conversing provided by Embodiment 2 of the present invention.The embodiment of the present invention is above-mentioned
On the basis of embodiment, it is frequency, amplitude and tone color to add the vocal print feature, correspondingly, further optimizes described
According to the vocal print feature of caller, the operation of caller's voice data is filtered out in the total audio data.
Correspondingly, the method for the present embodiment includes：
S210, in communication process, pass through voice collection device gather total audio data.
S220, according to the frequency of caller, amplitude and tone color, filtered out in the total audio data with the frequency
Caller's voice data of rate, amplitude and tone color.
By three elements of sound：The vocal print of frequency, amplitude and tone color as caller, filters in total audio data and provides
There is the voice data of the frequency, amplitude and tamber characteristic, be caller's voice data.
Exemplarily, the voice data that amplitude can also be directly less than to predetermined threshold value filters, by the voice of remainder
As caller's voice, processing speed is improved.
Exemplarily, can be in advance using the vocal print feature information of the frequency of the sound of owner, amplitude and tone color as main sound
Line characteristic information is stored, the voiceprint of the contact person in being recorded with memory communicating, can specifically pass through direct intercommunication
Voice messaging in microphone, recording file or extraction chat software such as wechat, QQ in extraction communication process, record machine are advocated peace
The vocal print feature information of contact person.In owner's communication process, it can be believed by judging the voiceprint of caller with main vocal print
Whether breath matches, and successful match can filter out corresponding VoP by the voiceprint of caller, and be transmitted
To other side, other side can only hear the sound of owner person.During conversing with other side, other side's voiceprint is obtained to match this
Voice print database in machine contact person, if successful match, filters out the VoP of partner, realizes that owner can only listen
To the sound of partner.If being that non-owner personnel are conversed by this communication apparatus, with main voiceprint after it fails to match, after
It is continuous to be matched with the voiceprint of contact person in native contact book, if it is contact person in the machine to match, matching can also be passed through
To voiceprint filter out VoP, and be transmitted to partner, realize the purpose to abate the noise.
S230, send caller's voice data to those who answer.
The frequency of sound, amplitude and tone color by being used as the vocal print feature of caller by the embodiment of the present invention, in total audio
The voice data with the frequency, amplitude and tone color is filtered out in data as caller's voice data, is sent the data to
Those who answer, realizes the filtering to caller's voice data, improves speech quality.
Embodiment three
Fig. 3 is a kind of flow chart for call method of adjustment that the embodiment of the present invention three provides.The embodiment of the present invention is above-mentioned
On the basis of embodiment, the behaviour before filtering out caller's VoP in total VoP is added
Make.
Correspondingly, the method for the present embodiment includes：
S310, in communication process, pass through voice collection device gather total audio data.
Whether S320, the amplitude characteristic for the vocal print feature for detecting environmental audio exceed predetermined threshold value.
The vocal print feature information of extraction environment audio, specifically, can before the call that caller is transferred to is picked up,
Gather environmental audio data, the vocal print feature information of extraction environment voice data, the vocal print feature information can include frequency,
Amplitude and tone color.Judge whether the amplitude characteristic of the environmental audio exceedes predetermined threshold value, the predetermined threshold value can be call
Person independently sets, and the tolerance of noise can also be set according to human ear.
S330, when being, according to the vocal print feature of caller, caller's language is filtered out in the total audio data
Sound data.
When the amplitude characteristic of environmental audio exceedes given threshold, show that environment is more noisy, it is necessary to carry out filtering out call
Person's voice data.When the amplitude characteristic of environmental audio is less than given threshold, it can be assumed that the environment is quieter, it may not be necessary to
Those who answer can be sent to by total audio data by carrying out the filtering of caller's voice data, improve the real-time of call, ensure call
Quality.
Before filtering out caller's VoP in total VoP, it can also include：Judge anti-
Disturb whether switch is opened；If interference guard switch is opened, start and filter out caller's voice in total VoP
The function of data packet.Interference guard switch can be virtual key on intelligent terminal screen or intelligent terminal entity by
Key, the physical button can be the new buttons of the multiplexing functions of existing button or simple function.In communication process,
Noisy degree that can be by user's subjectivity according to environment, decides whether to open interference guard switch.It is possible thereby to according to different user pair
The difference of noise tolerance, independently chooses whether to filter out caller's voice data, meets user demand, improves user experience.
S340, send caller's voice data to those who answer.
The embodiment of the present invention is started to caller's language by detecting the vocal print feature of environment when amplitude exceedes predetermined threshold value
The filtering of sound data, realizes when the environment residing for caller is quieter, without being filtered to caller's voice data,
It is also ensured that the quality of call, improves the real-time of call, when environment is more noisy, to filtering out caller's voice number
According to avoiding interference of the environment to call, improve speech quality, improve user experience.
Example IV
Fig. 4 is a kind of structure diagram for call adjusting apparatus that the embodiment of the present invention four provides.The device is used to perform
State a kind of call method of adjustment that any embodiment is provided.The device includes：
Total audio data acquisition module 410, in communication process, total audio number to be gathered by voice collection device
According to；
Filtering module 420, for the vocal print feature according to caller, the call is filtered out in the total audio data
Person's voice data；
Sending module 430, for sending caller's VoP to those who answer.
Further, which further includes：
Vocal print feature extraction module, for gathering the voice signal of caller in advance, it is corresponding to extract the voice signal
Vocal print feature, the vocal print feature as caller.
Further, the vocal print feature is frequency, amplitude and tone color, and correspondingly, the filtering module is specifically used for：
According to the frequency of caller, amplitude and tone color, filtered out in the total audio data with the frequency, amplitude
With caller's voice data of tone color.
Further, the vocal print feature is Mel-cepstrum.
Further, the vocal print feature extraction module is specifically additionally operable to：
According to the highest voice signal of the frequency of occurrences in history voice signal, the voice signal of caller is determined.
Further, which further includes：Interference guard switch opens judgment module, for the mistake in total VoP
Before filtering out caller's VoP, judge whether interference guard switch is opened；If interference guard switch is opened, start described
The function of caller's VoP is filtered out in total VoP.
Further, which further includes：Environmental audio vocal print feature detection module, in total VoP
In filter out caller's VoP before, detect the vocal print feature of environmental audio amplitude characteristic whether exceed it is default
Threshold value；When being, start and caller's VoP is filtered out in total VoP.
The embodiment of the present invention four provide call adjusting apparatus, realize by total audio data in addition to caller's voice
Acoustic filtering fall, only caller's voice data is sent to those who answer, ensures that the sound that those who answer hears only has caller
Voice, without the various voice datas of caller's local environment, ensure call clarity, improve speech quality.
The call adjusting apparatus that the embodiment of the present invention is provided can perform the call tune that any embodiment of the present invention is provided
Adjusting method, possesses the corresponding function module of execution method and beneficial effect.
Embodiment five
Fig. 5 is a kind of structure diagram for equipment that the embodiment of the present invention five provides, as shown in figure 5, the equipment includes place
Manage device 50, memory 51, input unit 52 and output device 53；The quantity of processor 50 can be one or more in equipment,
In Fig. 5 by taking a processor 50 as an example；Processor 50, memory 51, input unit 52 and output device 53 in equipment can be with
Connected by bus or other modes, in Fig. 5 exemplified by being connected by bus.
Memory 51 is used as a kind of computer-readable recording medium, and journey is can perform available for storage software program, computer
Sequence and module, if the corresponding programmed instruction/module of the vehicle communication method in the embodiment of the present invention is (for example, total audio data
Acquisition module 410, filtering module 420 and sending module 430).Processor 50 is stored in the software in memory 51 by operation
Program, instruction and module, so as to perform various function application and the data processing of equipment, that is, realize above-mentioned call adjustment
Method.
Memory 51 mainly includes storing program area and storage data field, wherein, storing program area can storage program area,
Application program needed at least one function；Storage data field can be stored uses created data etc. according to terminal.In addition,
Memory 51 can include high-speed random access memory, can also include nonvolatile memory, for example, at least a disk
Memory device, flush memory device or other non-volatile solid state memory parts.In some instances, memory 51 can be wrapped further
Network connection to equipment can be passed through relative to the remotely located memory of processor 50, these remote memories by including.Above-mentioned net
The example of network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
Input unit 52 can be used for the numeral or character information for receiving input, and produce with the user setting of equipment and
The related key signals input of function control.Output device 53 may include the display devices such as display screen.
Embodiment six
The embodiment of the present invention six also provides a kind of storage medium for including computer executable instructions, and the computer can be held
Row instruction is used to perform a kind of call method of adjustment when being performed by computer processor, and this method includes：
In communication process, total audio data are gathered by voice collection device；
According to the vocal print feature of caller, caller's voice data is filtered out in the total audio data；
Caller's voice data is sent to those who answer.
Certainly, a kind of storage medium for including computer executable instructions that the embodiment of the present invention is provided, its computer
The method operation that executable instruction is not limited to the described above, can also carry out the call adjustment that any embodiment of the present invention is provided
Relevant operation in method.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but the former is more in many cases
Good embodiment.Based on such understanding, what technical scheme substantially in other words contributed the prior art
Part can be embodied in the form of software product, which can be stored in computer-readable recording medium
In, floppy disk, read-only storage (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server, or network equipment etc.) performs the method described in each embodiment of the present invention.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. one kind call method of adjustment, it is characterised in that including：
In communication process, total audio data are gathered by voice collection device；
According to the vocal print feature of caller, caller's voice data is filtered out in the total audio data；
Caller's voice data is sent to those who answer.
2. according to the method described in claim 1, it is characterized in that, further include：
The voice signal of collection caller in advance, extracts the corresponding vocal print feature of the voice signal, the vocal print as caller
Feature.
3. according to the method described in claim 1, it is characterized in that, the vocal print feature is frequency, amplitude and tone color, accordingly
Ground, the vocal print feature according to caller, filters out caller's voice data in the total audio data, including：
According to the frequency of caller, amplitude and tone color, filtered out in the total audio data with the frequency, amplitude and sound
Caller's voice data of color.
4. according to the method described in claim 1, it is characterized in that, the vocal print feature is Mel-cepstrum.
5. according to the method described in claim 2, it is characterized in that, it is described in advance collection caller voice signal, including：
According to the highest voice signal of the frequency of occurrences in history voice signal, the voice signal of caller is determined.
6. according to the method described in claim 1, it is characterized in that, filter out the caller in total VoP
Before VoP, further include：
Judge whether interference guard switch is opened；
If interference guard switch is opened, start the work(that caller's VoP is filtered out in total VoP
Energy.
7. according to the method described in claim 1, it is characterized in that, filter out the caller in total VoP
Before VoP, further include：
Whether the amplitude characteristic for detecting the vocal print feature of environmental audio exceedes predetermined threshold value；
When being, start and caller's VoP is filtered out in total VoP.
8. one kind call adjusting apparatus, it is characterised in that including：
Total audio data acquisition module, in communication process, total audio data to be gathered by voice collection device；
Filtering module, for the vocal print feature according to caller, filters out caller's voice in the total audio data
Data；
Sending module, for sending caller's VoP to those who answer.
A kind of 9. equipment, it is characterised in that including：
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are performed by one or more of processors so that one or more of processors are real
The now call method of adjustment as described in any in claim 1-7.
10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the program is by processor
The call method of adjustment as described in any in claim 1-7 is realized during execution.
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| CN201711215808.1A CN107978320A (en) | 2017-11-28 | 2017-11-28 | One kind call method of adjustment, device, equipment and medium |
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| CN109151366A (en) * | 2018-09-27 | 2019-01-04 | 惠州Tcl移动通信有限公司 | A kind of sound processing method of video calling |
| CN109410955A (en) * | 2018-12-07 | 2019-03-01 | 广州势必可赢网络科技有限公司 | A kind of time slot scrambling of voice data, system, device and storage medium |
| CN110225195A (en) * | 2019-05-30 | 2019-09-10 | 维沃移动通信有限公司 | A kind of audio communication method and terminal |
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| CN110827851A (en) * | 2018-08-09 | 2020-02-21 | 珠海格力电器股份有限公司 | Method for adjusting volume, electronic device and computer storage medium |
| CN110827851B (en) * | 2018-08-09 | 2022-03-08 | 珠海格力电器股份有限公司 | Method for adjusting volume, electronic device and computer storage medium |
| CN109151366A (en) * | 2018-09-27 | 2019-01-04 | 惠州Tcl移动通信有限公司 | A kind of sound processing method of video calling |
| CN109151366B (en) * | 2018-09-27 | 2020-09-22 | 惠州Tcl移动通信有限公司 | Sound processing method for video call, storage medium and server |
| CN109410955A (en) * | 2018-12-07 | 2019-03-01 | 广州势必可赢网络科技有限公司 | A kind of time slot scrambling of voice data, system, device and storage medium |
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| CN111565295B (en) * | 2020-04-28 | 2021-06-29 | 北京飞马拓新电子设备有限公司 | Large monitoring center console system with alarm function and control method |
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| CN115580678A (en) * | 2022-09-30 | 2023-01-06 | 联想(北京)有限公司 | Data processing method, device and equipment |
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Application publication date: 20180501 |