CN105897997A - Method and apparatus for adjusting audio gain - Google Patents
Method and apparatus for adjusting audio gain Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 238000010295 mobile communication Methods 0.000 abstract description 9
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- 238000012360 testing method Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 2
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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Abstract
The embodiments of the invention relate to a method and apparatus for adjusting audio gain. The method includes the following steps that: a segment of original audio is generated; the original audio played by a stable player is recorded; an energy value which is obtained after a frequency point to be adjusted in the recorded original audio is compensated is calculated; and the original audio is adjusted based on the energy value. The invention provides an apparatus corresponding to the method. With the method and apparatus provided by the embodiments of the invention adopted, the quality of audio received by a mobile communication device can be more reliable.
Description
Technical field
Each embodiment of the invention generally relates to field of audio processing, and more specifically,
The embodiments of the present invention relate to a kind of method and apparatus for adjusting audio gain.
Background technology
Along with developing rapidly of semiconductor technology, us are dissolved into by increasing electronic equipment
Daily life in the middle of.Such as, in daily life, people are frequently by such as mobile logical
The subscriber equipment of letter equipment (such as, mobile phone) etc communicates with each other.But,
Under many circumstances, mobile communication equipment is at transmission lower frequency audio frequency and upper frequency audio frequency
During, the energy of audio frequency has decay in various degree or increase.
Being found through experiments, mobile communication equipment hardware has difference to the audio frequency of different frequent points
Sensitivity, thus cause the audio frequency for different frequent points to have different journeys on audio power
The decay of degree.In order to weaken this characteristic of mobile communication equipment hardware, it is desirable to provide one
Enable to more reliable the increasing for adjusting audio frequency of audio quality that mobile communication equipment receives
The method and apparatus of benefit.
Summary of the invention
In order to solve the problems referred to above, in the present context, the purpose of each embodiment of the present invention
One of be to provide a kind of method and apparatus for adjusting audio gain.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, such as, may include that one section of original audio of generation；To by stably broadcasting
The described original audio putting device broadcasting is recorded；Calculate in the described original audio of recording
Energy value after frequency to be adjusted compensation；And based on described energy value to described original audio
It is adjusted.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, the frequency range of wherein said original audio can be 5000hz extremely
14000hz。
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, wherein said stable playback device can play different frequent points audio frequency it
After, energy attenuation is uniform and relatively small.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, can pass through formulaCalculate through described in recording
Energy value after frequency to be adjusted compensates in original audio.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, the span of wherein said k can be from 2.0 to 4.0.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The method of gain frequently, is wherein adjusted permissible based on described energy value to described original audio
Farther include: the energy of decay is compensated；And the energy of enhancing is decayed.
According to a further aspect of the invention some embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, such as, may include that generating means, be configurable to generate one section original
Audio frequency；Recording device, is configured to the described original audio play by stable playback device
Record；Calculate device, be configured to calculate and wait to adjust in the described original audio of recording
Energy value after the compensation of whole frequency；And adjusting apparatus, it is configured to based on described energy value
Described original audio is adjusted.
According to a further aspect of the invention some embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, the frequency range of wherein said original audio can be 5000hz extremely
14000hz。
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, wherein said stable playback device can play different frequent points audio frequency it
After, energy attenuation is uniform and relatively small.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, can pass through formulaCalculate through described in recording
Energy value after frequency to be adjusted compensates in original audio.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, the span of wherein said k can be from 2.0 to 4.0.
Some according to one aspect of the invention embodiment there is provided a kind of for adjusting sound
The equipment of gain frequently, its middle regulator may further include: compensation device, is configured
For the energy of decay is compensated；And attenuating device, it is configured to the energy that will strengthen
Decay.
Exemplary embodiment of the invention provide exemplary solution at least can bring as
The most significant technique effect: by adjusting audio gain, mobile communication equipment can be alleviated hard
The impact that audio power is caused by part, so that the audio frequency matter that mobile communication equipment receives
Measure more reliable.
Accompanying drawing explanation
By reading detailed description below with reference to accompanying drawing, exemplary embodiment of the invention
Above-mentioned and other objects, features and advantages will become prone to understand.In the accompanying drawings, to show
Example and nonrestrictive mode show some embodiments of the present invention, wherein:
Fig. 1 is to diagrammatically illustrate according to exemplary embodiment of the invention, for adjusting
The method flow diagram of audio gain；
Fig. 2 is to diagrammatically illustrate according to exemplary embodiment of the invention, for adjusting
The equipment block diagram of audio gain；
Fig. 3 is to diagrammatically illustrate the energy curves figure that test obtains；
Fig. 4 be diagrammatically illustrate according to exemplary embodiment of the invention generate one section original
The spectrogram of audio frequency；
Fig. 5 is to diagrammatically illustrate the energy profile that frequency corresponding to Fig. 4 is corresponding；With
And
Fig. 6 be diagrammatically illustrate by from exemplary embodiment of the invention be benefited and can
To be the block diagram of mobile terminal of exemplary embodiment of the invention exemplary device.
In the accompanying drawings, identical or corresponding label represents identical or corresponding part.
Detailed description of the invention
Principle and the spirit of the present invention are described below with reference to some illustrative embodiments.
Should be appreciated that providing these embodiments is only used to enable those skilled in the art more
Understand and then realize well the present invention, and limit the scope of the present invention the most by any way.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described.
With reference first to Fig. 1, wherein Fig. 1 is to diagrammatically illustrate according to the exemplary enforcement of the present invention
Mode, for adjusting the method flow diagram of audio gain.
As it is shown in figure 1, according to each illustrative embodiments of the present invention, method 100 is such as
Can include generating one section of original audio (S101).
In an illustrative embodiments, the frequency range of described original audio can be
5000hz to 14000hz.Below with reference to shown in Fig. 4 and Fig. 5, when described original audio
Frequency range when being 5000hz to 14000hz, its Energy distribution compares concentration, specifically
Ground is between 2.94718E+13 to 2.95802E+13.
Further, the method 100 such as can be to described in playing by stable playback device
Original audio carries out record (S102).
In an illustrative embodiments, described stable playback device can play different frequency
After the audio frequency of point, energy attenuation is uniform and relatively small.Such as, in actual applications,
The speaker of iphone can be used as described stable playback device, and assume iphone's
Speaker energy decay is uniform and relatively small.
Further, the method 100 such as can calculate in the described original audio of recording
Energy value (S103) after frequency to be adjusted compensation.
In an illustrative embodiments, formula can be passed throughCount
Calculate the energy value after frequency to be adjusted compensates in the described original audio of recording.Wherein, k
Span can be from 2.0 to 4.0, and in actual applications, the floating model of this k value
Enclose and not quite.
Further, the method 100 such as can be based on described energy value to described original sound
Frequency is adjusted (S104).
In an illustrative embodiments, based on described energy value, described original audio is entered
Row sum-equal matrix may further include: is compensated by the energy of decay；And the energy that will strengthen
Amount decays.Specifically, after mobile communication equipment receives audio stream, by upper
The energy of decay can be compensated by the formula described in literary composition, and is carried out by the energy of enhancing
Decay.Produce such that it is able to eliminate mobile communication equipment to a certain extent when receiving audio frequency
Energy hunting so that energy distribution on frequency spectrum is more uniform.
It will be understood by those skilled in the art that manner as described above is described ad hoc fashion
Illustrative examples, be not limited to that, described ad hoc fashion can also is that other modes.
Below with reference to Fig. 2, it illustrates according to exemplary embodiment of the invention, for adjusting
The schematic block diagram of the equipment 200 of whole audio gain.Equipment 200 such as may include that life
Become device 201, be configurable to generate one section of original audio；Recording device 202, is configured to
The described original audio play by stable playback device is recorded；Calculate device 203, quilt
It is configured to calculate the energy value after frequency to be adjusted compensates in the described original audio of recording；
And adjusting apparatus 204, it is configured to based on described energy value, described original audio be adjusted
Whole.
In an illustrative embodiments, the frequency range of wherein said original audio is permissible
It is 5000hz to 14000hz.
In an illustrative embodiments, wherein said stable playback device can play not
After the audio frequency of frequency, energy attenuation is uniform and relatively small.
In an illustrative embodiments, formula can be passed throughCount
Calculate the energy value after frequency to be adjusted compensates in the described original audio of recording.
In an illustrative embodiments, the span of wherein said k can from 2.0 to
4.0。
In an illustrative embodiments, its middle regulator may further include: mends
Repay device, be configured to compensate the energy of decay；And attenuating device, it is configured
For the energy of enhancing is decayed.
For clarity, the sub-device that each device is comprised is not showed that in fig. 2.So
And, it will be appreciated that the device described in equipment 200 and the method described with reference to Fig. 1 respectively
Step in 100 is corresponding.Thus, above with respect to Fig. 1 method 100 describe operation and
Feature is equally applicable to equipment 200 and the device wherein comprised and sub-device, the most superfluous at this
State.
Should be appreciated that equipment 200 can profit realize in various manners.Such as, at some
In embodiment, equipment 200 can utilize software and/or firmware module to realize.Additionally,
Equipment 200 can also utilize hardware module to realize.Such as, equipment 200 can be implemented as
Integrated circuit (IC) chip or special IC (ASIC).Equipment 200 can also be real
It it is now SOC(system on a chip) (SOC).Additionally, equipment 200 can also utilize hardware module and soft
The combination of part and/or firmware module realizes.Other modes currently known or exploitation in the future
Also being feasible, the scope of the present invention is not limited in this respect.
The example of one actual application is described below with reference to Fig. 3 to Fig. 5.With reference first to Fig. 3,
Fig. 3 is to diagrammatically illustrate the energy curves figure that test obtains.
Being experimentally confirmed, a lot of mobile phones are at transmission lower frequency sound and upper frequency sound
Time on audio power, have decay in various degree or increase.As it is shown on figure 3, this figure is
The sound that the speaker of motorola ME860 money mobile phone recording iphone sends is (every in sound
The energy of individual frequency is equal, and assumes that the speaker energy decay of iphone is little).
Fig. 3 diagrammatically illustrates the energy curves figure obtained by test, and wherein abscissa is
Equally distributed 127 points in [5000hz, 14000hz] scope, vertical coordinate is audio power
Value.As can be seen from Figure 3 along with the high-octane situation of change of the increasing of frequency, i.e. energy
Size distribution is in the scope of [6360169,84618799837].This explanation mobile phone hardware is not to
With the different sensitivity that has of frequency, thus cause and have difference for different frequent points audio power
The decay of degree.
Fig. 4 be diagrammatically illustrate according to exemplary embodiment of the invention generate one section original
The spectrogram of audio frequency.Wherein, it is shown that frequency in the range of [5000hz, 14000hz] one
Section original audio.Fig. 5 is that the energy diagrammatically illustrating frequency corresponding to Fig. 4 corresponding divides
Butut.As it is shown in figure 5, the Energy distribution of original audio compares and concentrates in Fig. 4
In the range of [2.94718E+13,2.95802E+13].
By the audio frequency shown in Fig. 4 is placed in metastable player.Wherein, " steady
After calmly " referring to the sound of player plays different frequent points, energy attenuation is uniform and relatively small.
In this example, use the speaker of iphone to play this audio stream, and use quilt
Testing mobile phone is to this audio sound-recording.By the audio stream after recording, obtain each frequency
Energy, analyzes its energy curve figure.According to the change of energy, calculate the number of a reasonable set
According to.Wherein, computing formula is:It should be noted that, wherein n is ginseng
With the number (being 128 in this example) of all frequencies of frequency sweep, powiFor in frequency sweep data
I-th frequency energy value, pow 'iFor needing the energy value of the frequency i compensated, pow "iFor pow 'i
Energy value after compensation, the span of k is 2.0 to 4.0.Specifically, this k value is at this
In example, value is 2.8, and this value is typically floated not quite.When mobile phone receives audio stream, pass through
The energy of decay can be compensated by this formula, and is decayed by the energy of enhancing.
Thus the energy hunting that just can cause when to a certain degree eliminating mobile phone hardware and receiving sound,
Make energy distribution on frequency spectrum more uniform.
Below with reference to Fig. 6, it illustrates the mobile end be suitable to for putting into practice embodiment of the present invention
The schematic block diagram of end 600.In the example depicted in fig. 6, mobile terminal 600 is one
There is the mobile device of wireless communication ability.However, it is to be appreciated that this is merely exemplary
And it is nonrestrictive.Other kinds of mobile terminal can also easily use the reality of the present invention
Execute mode, such as portable digital-assistant (PDA), pager, mobile computer, shifting
Galvanic electricity regards, game station, laptop computer, photographing unit, videocorder, GPS device with
And other kinds of voice and text communication system.Fixed mobile terminal is the easiest
Ground uses embodiments of the present invention.
Mobile terminal 600 includes one or antenna 618, its operationally with transmitter 614 and
Receiver 616 communicates.Mobile terminal 600 also includes processor 612 or its elsewhere
Reason element, it provides respectively goes to the signal of transmitter 614 and receives from receiver 616
Signal.Signal includes the signaling information of the air-interface standard according to suitable cellular system,
And also include the data that user speech, the data of reception and/or user generate.In this regard,
Mobile terminal 600 can utilize one or more air-interface standard, communication protocol, modulation
Type and access style operate.As demonstration, mobile terminal 600 can basis
Any agreement in multiple first generation, the second filial generation, the third generation and/or forth generation communication protocol etc.
Operate.Such as, mobile terminal 600 can be according to the second filial generation (G) channel radio
Letter agreement IS-136 (TDMA), GSM and IS-95 (CDMA) operate, or
Person is according to the third generation of such as UMTS, CDMA2000, WCDMA and TD-SCDMA
(G) wireless communication protocol operates, or according to forth generation (4G) radio communication
Agreement and/or similar agreement operate.
It is appreciated that processor 612 includes the electricity needed for realizing the function of mobile terminal 600
Road.Such as, processor 612 can include that digital signal processor device, microprocessor set
Analog-digital converters standby, various, digital to analog converter and other support circuit.Mobile terminal 600
Control and signal processing function distribute betwixt according to the respective ability of these equipment.Process
Device 612 carries out convolution volume to message and data before being thus additionally may included in modulation and transmission
Code and the function interweaved.Processor 612 can also comprise additionally in internal voice coder, and
And internal data modem can be included.Additionally, processor 612 can include can
The function operated is carried out with storage one or more software programs in memory.Such as,
Processor 612 can be operable to linker, the most traditional Web browser.Connect
Program then can allow mobile terminal 600 such as according to WAP (WAP),
HTML (Hypertext Markup Language) (HTTP) etc. is launched and receives web content (such as based on position
Content and/or other web page content).
Mobile terminal 600 can also include user interface, its such as can include earphone or
Speaker 624, ringer 622, mike 626, display screen 628 and handwriting equipment 631,
All these equipment are both coupled to processor 612.Mobile terminal 600 can include keypad
630.Keypad 630 can include traditional numeral keys (0-9) and relative keys (#, *),
And for operating other keys of mobile terminal 600.Alternatively, keypad 630 can wrap
Include traditional QWERTY keypad to arrange.Keypad 630 can also include relevant to function
The various soft keys of connection.Mobile terminal 600 can also include acceleration induction module 636, is used for
The action (moving) that capture user makes.
Specifically, display screen 628 can include touch-screen and/or neighbouring formula screen, uses
Family can operate mobile terminal 600 by directly operation screen.Now, display screen 628
Function simultaneously as both input equipment and outut device.In such embodiment, hand-written set
Standby 631 may be configured to receive user by the most common pen, special stylus and/or hands
The input provided on display screen 628 is provided, inputs including giving directions input and gesture.
Additionally, mobile terminal 600 can include the interface equipment of such as stick or other
For input interface.Mobile terminal 600 also includes battery 634, such as vibrating battery group, uses
In powering for the various circuit needed for operation mobile terminal 600, and optionally provide machinery
Vibration is as detecting output.
Mobile terminal 600 may further include Subscriber Identity Module (UIM) 638.UIM 638
It is typically the memory devices with internal processor.UIM 638 such as can include subscriber
Mark module (SIM), Universal Integrated Circuit Card (UICC), Universal Subscriber Identity module
(USIM), removable Subscriber Identity Module (R-UIM) etc..UIM 638 is commonly stored
The cell relevant to mobile subscriber.
Mobile terminal 600 can also have memorizer.Such as, mobile terminal 600 can wrap
Include volatile memory 640, the cache area such as including temporarily storing for data
Volatile random access memory (RAM).Mobile terminal 600 can also include that other are non-
Volatile memory 642, it can be Embedded and/or moveable.Non-volatile deposit
Reservoir 642 can additionally or alternatively include such as EEPROM and flash memory etc..Storage
Arbitrary Term in multiple information segments that device can be used with memory mobile terminal 600 and data,
To realize the function of mobile terminal 600.
Described mobile terminal 600 can realize method and the configuration described above in association with Fig. 1
For as combining the equipment that Fig. 2 describes.
Should be appreciated that the structured flowchart described in Fig. 6 illustrates just to the purpose of example,
Rather than limitation of the scope of the invention.In some cases, can as the case may be and
Increase or reduce some equipment.
It should be noted that, embodiments of the present invention can pass through hardware, software or software and
Being implemented in combination in of hardware.Hardware components can utilize special logic to realize；Software section
Can store in memory, by suitable instruction execution system, such as microprocessor or
Special designs hardware performs.It will be understood by those skilled in the art that above-mentioned equipment
Computer executable instructions can be used with method and/or be included in processor control routine
Realize, such as such as disk, CD or DVD-ROM mounting medium, the most read-only deposit
The programmable memory of reservoir (firmware) or the number of such as optics or electrical signal carrier
According to providing such code on carrier.The equipment of the present invention and module thereof can be by such as surpassing
Large scale integrated circuit or the quasiconductor of gate array, such as logic chip, transistor etc. or
The programmable hardware device of person such as field programmable gate array, programmable logic device etc.
Hardware circuit realizes, it is also possible to realize with the software performed by various types of processors, also
Can be realized by the combination of above-mentioned hardware circuit and software such as firmware.
If although it should be noted that, being referred to equipment for drying or the son of equipment in above-detailed
Device, but this division is the most enforceable.It practice, according to the reality of the present invention
Executing mode, the feature of two or more devices above-described and function can be at a device
Middle materialization.Otherwise, feature and the function of an above-described device can be drawn further
It is divided into and being embodied by multiple devices.
Although additionally, describe the operation of the inventive method in the accompanying drawings with particular order, but
It is that this does not requires that or imply and must operate to perform these according to this particular order, or
It is to have to carry out the most shown operation to realize desired result.On the contrary, in flow chart
The step described can change execution sequence.Additionally or alternatively, it is convenient to omit some step
Suddenly, multiple steps are merged into a step and performs, and/or a step is decomposed into multiple
Step performs.
Although describing the present invention by reference to some detailed description of the invention, it should be appreciated that,
The present invention is not limited to disclosed detailed description of the invention.It is contemplated that contain appended right
Various amendments included in the spirit and scope required and equivalent arrangements.Claims
Scope meet broadest explanation, thus comprise all such amendments and equivalent structure and
Function.
Claims (12)
1. for the method adjusting audio gain, including:
Generate one section of original audio；
The described original audio play by stable playback device is recorded；
Calculate the energy value after frequency to be adjusted compensates in the described original audio of recording；And
Based on described energy value, described original audio is adjusted.
Method the most according to claim 1, the frequency range of wherein said original audio
It is 5000hz to 14000hz.
Method the most according to claim 1, wherein said stable playback device is being play not
After the audio frequency of frequency, energy attenuation is uniform and relatively small.
Method the most according to claim 1, passes through formula
Calculate the energy value after frequency to be adjusted compensates in the described original audio of recording.
Method the most according to claim 4, the span of wherein said k is from 2.0
To 4.0.
Method the most according to claim 1, wherein based on described energy value to described former
Beginning audio frequency is adjusted farther including:
The energy of decay is compensated；And
The energy of enhancing is decayed.
7. for adjusting an equipment for audio gain, including:
Generating means, is configurable to generate one section of original audio；
Recording device, is configured to the described original audio to being play by stable playback device and carries out
Recording；
Calculate device, be configured to calculate frequency to be adjusted in the described original audio of recording and mend
Energy value after repaying；And
Adjusting apparatus, is configured to be adjusted described original audio based on described energy value.
Equipment the most according to claim 7, the frequency range of wherein said original audio
It is 5000hz to 14000hz.
Equipment the most according to claim 7, wherein said stable playback device is being play not
After the audio frequency of frequency, energy attenuation is uniform and relatively small.
Equipment the most according to claim 7, passes through formula Calculate the energy value after frequency to be adjusted compensates in the described original audio of recording.
11. equipment according to claim 10, the span of wherein said k is from 2.0
To 4.0.
12. equipment according to claim 7, its middle regulator farther includes:
Compensation device, is configured to compensate the energy of decay；And
Attenuating device, is configured to decay the energy of enhancing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813969.0A CN105897997B (en) | 2014-12-18 | 2014-12-18 | Method and apparatus for adjusting audio gain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410813969.0A CN105897997B (en) | 2014-12-18 | 2014-12-18 | Method and apparatus for adjusting audio gain |
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| CN105897997A true CN105897997A (en) | 2016-08-24 |
| CN105897997B CN105897997B (en) | 2019-03-08 |
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| CN201410813969.0A Expired - Fee Related CN105897997B (en) | 2014-12-18 | 2014-12-18 | Method and apparatus for adjusting audio gain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328159A (en) * | 2016-09-12 | 2017-01-11 | 合网络技术（北京）有限公司 | Audio stream processing method and audio stream processing device |
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| CN101155438A (en) * | 2006-09-26 | 2008-04-02 | 张秀丽 | Frequency response adaptive equalization method for audio device |
| CN101567673A (en) * | 2009-05-21 | 2009-10-28 | 深圳市科莱特斯科技有限公司 | Audio equalizing method and device |
| EP2624254A1 (en) * | 2012-01-23 | 2013-08-07 | Fujitsu Limited | Audio processing device and audio processing method for de-reverberation |
| CN103442115A (en) * | 2013-08-23 | 2013-12-11 | 杭州爱华仪器有限公司 | Mobile phone frequency response automatic calibration system and automatic calibration method thereof |
| CN104143337A (en) * | 2014-01-08 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Method and device for improving tone quality of sound signal |
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2014
- 2014-12-18 CN CN201410813969.0A patent/CN105897997B/en not_active Expired - Fee Related
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| CN101155438A (en) * | 2006-09-26 | 2008-04-02 | 张秀丽 | Frequency response adaptive equalization method for audio device |
| CN101567673A (en) * | 2009-05-21 | 2009-10-28 | 深圳市科莱特斯科技有限公司 | Audio equalizing method and device |
| EP2624254A1 (en) * | 2012-01-23 | 2013-08-07 | Fujitsu Limited | Audio processing device and audio processing method for de-reverberation |
| CN103442115A (en) * | 2013-08-23 | 2013-12-11 | 杭州爱华仪器有限公司 | Mobile phone frequency response automatic calibration system and automatic calibration method thereof |
| CN104143337A (en) * | 2014-01-08 | 2014-11-12 | 腾讯科技（深圳）有限公司 | Method and device for improving tone quality of sound signal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328159A (en) * | 2016-09-12 | 2017-01-11 | 合网络技术（北京）有限公司 | Audio stream processing method and audio stream processing device |
| CN106328159B (en) * | 2016-09-12 | 2021-07-09 | 优酷网络技术（北京）有限公司 | Audio stream processing method and device |
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| CN105897997B (en) | 2019-03-08 |
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