CN106507245A - Method for regulating audio signal and device - Google Patents
Method for regulating audio signal and device Download PDFInfo
- Publication number
- CN106507245A CN106507245A CN201611223205.1A CN201611223205A CN106507245A CN 106507245 A CN106507245 A CN 106507245A CN 201611223205 A CN201611223205 A CN 201611223205A CN 106507245 A CN106507245 A CN 106507245A
- Authority
- CN
- China
- Prior art keywords
- signal
- audio signal
- audio
- peak
- default
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of method for regulating audio signal and device, the method for regulating audio signal includes：The method for regulating audio signal includes：When the audio signal of Mike's wind direction audio output apparatus input is detected, the signal peak of the audio signal is obtained in real time；Judge the signal peak whether in the default recognitiion gate limits of audio output apparatus；When the signal peak is not in the default recognitiion gate limits, gain-adjusted process is carried out to the audio signal, so that audio output apparatus are identified and play to the audio signal after gain-adjusted process.Invention is solved in prior art due to not detecting the audio frequency signal amplitude for adjusting microphone input television set, occurs sound effect distortion so as to cause TV set terminal when playing Mike's wind direction audio output apparatus input audio frequency, abnormal, and affect the technical problem of Consumer's Experience.
Description
Technical field
The present invention relates to signal processing technology field, more particularly to a kind of method for regulating audio signal and device.
Background technology
With the development of science and technology, television set of today has been more than simple audio-visual tool, but a disclosure satisfy that big
The high-end smart electronicses product of many home entertaining demands, the family KTV realized wherein on the basis of intelligent television are just increasingly received
Popular welcome, is the effect for improving KTV, and all multi-users can select oneself purchase microphone, and if Mike's wind facies of purchase
Answer in receiver with signal amplifying function, it is possible that audio distortions after respective audio signal is broadcasted by TV set terminal,
Abnormal, or even the problem of damage microphone interface, and then user experience and personal safety can be affected.
Content of the invention
Present invention is primarily targeted at providing a kind of method for regulating audio signal and device, it is intended to solve in prior art
Due to not detecting the audio frequency signal amplitude of adjustment microphone input television set, the audio frequency effect so as to cause TV set terminal to be played loses
Very, abnormal, and affect the technical problem of Consumer's Experience and personal safety.
For achieving the above object, the present invention provides a kind of method for regulating audio signal, and the audio signal includes microphone
Input audio signal, the method for regulating audio signal include：
When the audio signal of Mike's wind direction audio output apparatus input is detected, the letter of the audio signal is obtained in real time
Number peak value；
Judge the signal peak whether in the default recognitiion gate limits of audio output apparatus；
When the signal peak is not in the default recognitiion gate limits, gain is carried out to the audio signal
Regulation is processed, so that audio output apparatus are identified and play to the audio signal after gain-adjusted process.
Preferably, described when the signal peak is not in the default recognitiion gate limits, to described
Audio signal carries out gain-adjusted process step to be included：
When the signal peak is not in default recognitiion gate limits, the signal peak and respective threshold is obtained
The proportionality coefficient of the corresponding extreme value of value；
The audio signal is amplified according to the proportionality coefficient or reduction is processed, so that after amplifying or reducing
The audio signal peak value in default recognitiion gate limits.
Preferably, described when the audio signal of Mike's wind direction audio output apparatus input is detected, obtain in real time described
The signal peak step of audio signal includes：
When the audio signal of Mike's wind direction audio output apparatus input is detected, the letter of the audio signal is obtained in real time
Number amplitude；
The signal amplitude of the audio signal is stopped amplitude peak when increasing as the current letter of the audio signal
Number peak value, and keep the current demand signal peak value；
When the signal peak of subsequently described audio signal is more than current demand signal peak value, by the letter of subsequently described audio signal
Number amplitude stops amplitude peak when increasing as new current demand signal peak value, and keeps new current demand signal peak value.
Preferably, described when the signal peak is not in the default recognitiion gate limits, to the audio frequency
Signal carries out gain-adjusted process, so that audio output apparatus are identified simultaneously to the audio signal after gain-adjusted process
Playing step includes：
When the signal peak is not in default recognitiion gate limits, gain-adjusted is carried out to the audio signal
Process, the audio output apparatus are identified to the audio signal after gain-adjusted process；
The audio signal after by identification carries out audio, filtering, decodes and effect enhanced processing, to drive loudspeaker to play
The audio signal.
Preferably, judging whether the signal peak is walked in the default recognitiion gate limits of audio output apparatus
After rapid, methods described includes：
When the signal peak is in default recognitiion gate limits, directly the audio signal is sent to audio frequency
Output equipment, the audio output apparatus carry out audio to the microphone input audio signal, filtering, and decoding process, with reality
The input audio signal is now played on a television set.
Additionally, for achieving the above object, the present invention also provides a kind of audio signal adjusting means, and the audio signal is adjusted
Device includes：
Detection module, for when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining institute in real time
State the signal peak of audio signal；
Judge module, for judging whether the signal peak is in the default recognitiion gate limits of audio output apparatus
Interior；
Processing module, for when the signal peak is not in the default recognitiion gate limits, to the sound
Frequency signal carries out gain-adjusted process, so that audio output apparatus are identified to the audio signal after gain-adjusted process
And play.
Preferably, the processing module includes：
First acquisition unit, for when the signal peak is not in default recognitiion gate limits, obtaining described
The proportionality coefficient of signal peak extreme value corresponding with respective doors limit value；
First processing units, for the audio signal is amplified according to the proportionality coefficient or reduction process,
So that the peak value of the audio signal after amplifying or reducing is in default recognitiion gate limits.
Preferably, the detection module includes：
Second acquisition unit, for when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining in real time
Take the signal amplitude of the audio signal；
First holding unit, stops amplitude peak when increasing as described for the signal amplitude using the audio signal
The current demand signal peak value of audio signal, and keep the current demand signal peak value；
Second holding unit, for when the signal peak of subsequently described audio signal is more than current demand signal peak value, by after
The signal amplitude for continuing the audio signal stops amplitude peak when increasing as new current demand signal peak value, and keeps new and work as
Front signal peak value.
Preferably, the processing module includes：
Gain adjustment unit, for when the signal peak is not in default recognitiion gate limits, to the sound
Frequency signal carries out gain-adjusted process, and the audio output apparatus are known to the audio signal after gain-adjusted process
Not；
Second processing unit, carries out audio for the audio signal after by identification, filtering, at decoding and effect amplification
Reason, to drive loudspeaker to play the audio signal.
Preferably, the audio signal adjusting means also includes：
Sending module, for when the signal peak is in default recognitiion gate limits, directly by the audio frequency
Signal is sent to audio output apparatus, and the audio output apparatus carry out audio to the microphone input audio signal, filtering,
Decoding process, to realize playing the input audio signal on a television set.
The present invention is by when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining the sound in real time
The signal peak of frequency signal；Judge the signal peak whether in the default recognitiion gate limits of audio output apparatus；
When the signal peak is not in the default recognitiion gate limits, the audio signal is carried out at gain-adjusted
Reason, so that audio output apparatus are identified and play to the audio signal after gain-adjusted process.Due to obtaining phase
Automatic detection microphone input signal peak value after input audio signal is answered, when peak value is not in default recognitiion gate limits
When, gain process that the audio signal is automatically adjusted is adjusting the audio signal to default recognitiion gate limits
Interior, so that television set core controller is identified to the audio signal, as the audio signal can be recognized completely, because
And effectively prevent microphone signal distortion, and due to after adjustment the corresponding power of the audio signal without departing from television set preset negative
Power is carried, thus the present invention can solve the problem that TV set terminal audio distortions occurs when playing microphone input audio frequency, abnormal, and affect
Consumer's Experience and the technical problem of personal safety.
Description of the drawings
Fig. 1 is the schematic flow sheet of method for regulating audio signal first embodiment of the present invention；
Fig. 2 is when the signal peak is not in the default knowledge in method for regulating audio signal second embodiment of the present invention
When in the range of other threshold value, the refinement schematic flow sheet of gain-adjusted process step is carried out to the audio signal；
Fig. 3 is defeated when Mike's wind direction audio output apparatus are detected in method for regulating audio signal 3rd embodiment of the present invention
During the audio signal for entering, the refinement schematic flow sheet of the signal peak step of the audio signal is obtained in real time；
Fig. 4 is the high-level schematic functional block diagram of audio signal adjusting means first embodiment of the present invention；
Fig. 5 is the refinement high-level schematic functional block diagram of processing module in audio signal adjusting means second embodiment of the present invention；
Fig. 6 is the high-level schematic functional block diagram of detection module in audio signal adjusting means 3rd embodiment of the present invention；
Fig. 7 is the schematic diagram of peak holding process described in method for regulating audio signal of the present invention；
Fig. 8 is the application scenarios schematic diagram of method for regulating audio signal of the present invention and device；
Fig. 9 is the first pass block diagram of method for regulating audio signal of the present invention and device Regulate signal process；
Figure 10 is the second procedure block diagram of method for regulating audio signal of the present invention and device Regulate signal process；
Figure 11 is peak detection circuit simplification figure in method for regulating audio signal of the present invention and device；
Figure 12 is peak holding circuit simplification figure in method for regulating audio signal of the present invention and device；
Figure 13 is comparator circuit simplification figure in method for regulating audio signal of the present invention and device.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
The present invention provides a kind of method for regulating audio signal, in the first embodiment of method for regulating audio signal of the present invention
In, with reference to Fig. 1, the method for regulating audio signal includes：
Step S10, when the audio signal of Mike's wind direction audio output apparatus input is detected, obtains the audio frequency in real time
The signal peak of signal；
On existing market, microphone species is generally divided into moving-coil type, crystal formula, carbon granule formula, aluminium band type and condenser type etc., is
Avoid producing unnecessary noise, family KTV typically selects dynamic microphones, and with microphone service life problem with
And user is to reasons such as the pursuits of KTV audios, it usually needs user oneself selects purchase microphone, the receiver of microphone to be divided into
Not band signal amplify with signal amplify two kinds of functions, as shown in figure 8, the present invention when detect microphone input audio frequency letter
Number when, be when detect user by microphone end to audio output apparatus be input into audio frequency when, the audio output apparatus bag
Sound equipment, television set etc. is included, the signal peak of the detection microphone input audio signal is obtained in real time, the signal peak is detected
Circuit reduction figure as shown in figure 11, the signal peak is the maximum of signal amplitude in preset duration, and the peak value is to become
Change.
Whether step S20, judge the signal peak in the default recognitiion gate limits of audio output apparatus；
It is noted that the audio output apparatus include MCU (core controller), comparator, the default recognitiion gate
Limits can be television set developer according to market situation set with update, while may also be user according to oneself requirement from
Row set, be the default recognitiion gate limits be with compatibility, by MCU controllable comparators with signal peak
Value is compared the default recognitiion gate limits of judgement, and comparator circuit simplification figure as shown in figure 13, is judging the signal
Before whether peak value is in default recognitiion gate limits, if sound signal frequencies change is fast, it is impossible to fast to frequency change
Voice signal in time locking or catch, accordingly the signal for detecting can be locked by such as peak holding unit etc.
Fixed, to keep the signal strength signal intensity peak value before fresh signal peak value occurs, after the intensity peak of input signal is locked, will
The peak value of the signal is sent to television set comparator, and television set comparator is by the intensity peak of the signal and default recognitiion gate
Limits are compared, comparator judged to be amplified the signal demand according to default threshold value or reduction at
Reason, still need not be processed to the signal, due to presetting what recognitiion gate limits were to determine, and microphone input letter
Number peak value changes because of the change of audio signal, thus comparison procedure is lasting.
Step S30, when the signal peak is not in the default recognitiion gate limits, to the audio signal
Gain-adjusted process is carried out, so that audio output apparatus are identified and broadcast to the audio signal after gain-adjusted process
Put.
Microphone due to buying is carried out to input audio signal after signal transacting, and microphone input audio signal peak has
May be not in default recognitiion gate limits, when microphone input audio signal peak is not in default identification threshold value model
When enclosing interior, gain-adjusted process is carried out to the microphone input audio signal, and according to microphone input audio signal peak
Judge to be amplified microphone input audio signal with the comparative result of predetermined threshold value or reduction is processed, right when needing
When microphone input audio signal is amplified process, audio signal amplification is carried out to which according to strict phase relation, described
Strict phase relation is that left channel signals information is strictly distinguished with right-channel signals information, and the amplification process is included to the sound
The overall amplification of frequency signal, in the same manner, when carrying out reducing process to microphone input audio signal, also includes defeated to the microphone
Enter the overall minimizing of audio signal, as automatic gain control process is using the closed-loop control with feedback, can voluntarily to input letter
Number adjusted, thus the audio signal after being adjusted is in accordingly default recognitiion gate limits, when to described
After the completion of signal gain is adjusted, the audio signal is sent to MCU (core controller), for television set core controller pair
Microphone input audio signal after the gain-adjusted is processed is identified, then again by MCU according to strict phase relation
Subsequent treatment, such as audio being carried out, being filtered, decoding etc., to realize the wheat being played on the output equipment such as television set or sound equipment
Gram wind input audio frequency, concrete signal adjusts process flow block diagram such as Fig. 9, shown in Figure 10.
In the present embodiment, by when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining in real time
Take the signal peak of the audio signal；Judge whether the signal peak is in the default identification threshold value of audio output apparatus
In the range of；When the signal peak is not in the default recognitiion gate limits, gain is carried out to the audio signal
Regulation is processed, so that audio output apparatus are identified and play to the audio signal after gain-adjusted process.Due to
Automatic detection microphone input signal peak value after corresponding input audio signal is obtained, when peak value is not in default identification threshold value model
When enclosing interior, gain process that the audio signal is automatically adjusted recognizes threshold value model to adjust the audio signal to default
In enclosing, so that audio output apparatus are identified to the audio signal, as the audio signal can be recognized completely, thus
Effectively prevent microphone signal distortion, and due to after adjustment the corresponding power of the audio signal without departing from the default load of television set
Power, thus the present invention can solve the problem that TV set terminal audio distortions occurs when playing microphone input audio frequency, abnormal, and affect to use
Family experience and the technical problem of personal safety.
Further, on the basis of the first embodiment of method for regulating audio signal of the present invention, there is provided audio signal is adjusted
Section method second embodiment, in a second embodiment, with reference to Fig. 2, step S30 includes：
Step S31, when the signal peak is not in default recognitiion gate limits, obtain the signal peak with
The proportionality coefficient of the corresponding extreme value of respective doors limit value；
Step S32, the audio signal is amplified according to the proportionality coefficient or reduction process so that amplify or
The peak value of the audio signal after person's reduction is in default recognitiion gate limits.
When the microphone input signal peak value is not in default recognitiion gate limits, need to be defeated to the microphone
Entering signal carries out gain-adjusted process, and gain-adjusted processes detailed process and may include first to obtain the microphone input signal peak value
The proportionality coefficient of extreme value corresponding with respective doors limit value, auxiliary are illustrated with specific embodiment, if microphone input of the present invention
When signal peak-peak V is 7V, and default recognitiion gate limits maximum is 6V, then the signal peak and respective doors limit value
The proportionality coefficient of corresponding extreme value is 6/7, and corresponding diminution 6/7 overall to the microphone input signal, so that signal peak of the present invention
It is changed into 6V after the process of value gain-adjusted, so that the microphone input audio signal peak after reducing is in default identification thresholding
In the range of value.In the same manner, if signal minimum peak V of the present invention is 2V, and default recognitiion gate limits minimum of a value is when being 3V,
Then the proportionality coefficient of signal peak extreme value corresponding with respective doors limit value is 3/2, whole to the microphone input signal intensity
Body phase should expand 3/2, so that microphone input signal minimum peak gain-adjusted of the present invention is changed into 3V after processing, so as to put
The peak value of the microphone input audio signal after big is in default recognitiion gate limits.
In the present embodiment, by when the signal peak is not in default recognitiion gate limits, obtaining described
The proportionality coefficient of signal peak extreme value corresponding with respective doors limit value；The audio signal is amplified according to the proportionality coefficient
Or reduction is processed, so that the peak value of the audio signal after amplifying or reducing is in default recognitiion gate limits.
Due to obtaining the proportionality coefficient of signal peak extreme value corresponding with respective doors limit value, according to the proportionality coefficient to the Mike
Wind input audio signal is amplified or reduction is processed, it is thus possible to make whole microphone input audio signals be in respective doors
In limits, and then cause the distortion of sound, affect audiovisual effect when user effectively being prevented using different microphone systems
Really.
Further, on the basis of the first embodiment of method for regulating audio signal of the present invention, there is provided audio signal is adjusted
Whether section method 3rd embodiment, in the third embodiment, with reference to Fig. 3, judging the signal peak in default recognitiion gate
In limits before step, methods described includes：
Step S11, when the audio signal of Mike's wind direction audio output apparatus input is detected, obtains the audio frequency in real time
The signal amplitude of signal；
Step S12, the signal amplitude of the audio signal is stopped amplitude peak when increasing as the audio signal
Current demand signal peak value, and keep the current demand signal peak value；
Step S13, when the signal peak of subsequently described audio signal is more than current demand signal peak value, will subsequently described audio frequency
Amplitude peak when the signal amplitude stopping of signal increases is used as new current demand signal peak value, and keeps new current demand signal peak
Value.
As user is during KTV amusements, the microphone input audio signal is changed constantly, and sound
Signal frequency changes soon, thus it is also instantaneously carried out that peakvalue's checking or peak value are obtained, but peak holding process can a guarantor
The amplitude peak for preserving audio signal is held, the amplitude peak is current demand signal peak value, and the signal peak includes peak-peak
With minimum peak, peak holding circuit simplification figure as shown in figure 12, when the signal peak of subsequently described audio signal is more than current
During signal peak, the signal amplitude of subsequently described audio signal is stopped amplitude peak when increasing as new current demand signal peak
Value, and keeps preserving new current demand signal peak value, as shown in fig. 7, wherein t is phase place or time, V is magnitude of voltage, V0For electricity
Voltage crest value, signal peak are corresponding with magnitude of voltage.During keeping preserving signal peak, the microphone input audio signal peak
Value phase place corresponding with the audio signal peak is that temporal information is corresponded.
In the present embodiment, by when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining in real time
Take the signal amplitude of the audio signal；The signal amplitude of the audio signal is stopped amplitude peak when increasing as described
The current demand signal peak value of audio signal, and keep the current demand signal peak value；When the signal peak of subsequently described audio signal big
When current demand signal peak value, the signal amplitude of subsequently described audio signal is stopped amplitude peak when increasing as new current
Signal peak, and keep new current demand signal peak value.Due to for will obtain audio signal peak preservation process after, then by its
Give comparator to be compared the peak value and predetermined threshold value, though thus prevent as audio signal is continually changing and cause
Accurately obtain the audio signal but due to accurately not preserving the audio signal peak for needing, and then affect sound signal
The technical problem of subsequent treatment.
Further, on the basis of the first embodiment of method for regulating audio signal of the present invention, there is provided audio signal is adjusted
Section method fourth embodiment, in the fourth embodiment, step S30 includes：
When the signal peak is not in default recognitiion gate limits, gain-adjusted is carried out to the audio signal
Process, the audio output apparatus are identified to the audio signal after gain-adjusted process；
The audio signal after by identification carries out audio, filtering, decodes and effect enhanced processing, to drive loudspeaker to play
The audio signal.
When the microphone input signal peak value is not in default recognitiion gate limits, to the microphone input
Audio signal carries out gain-adjusted process, and the audio output apparatus core controller is to the Mike after gain-adjusted process
Wind input audio signal is identified, and is audio frequency after gain-adjusted process is carried out to microphone input audio signal
Signal is integrally that MCU is capable of identify that, after MCU recognizes the microphone input audio signal, MCU is closed according to strict phase place
System carries out subsequent treatment, and the phase relation includes that the process to L channel with R channel etc. is not obscured mutually, strict differentiation, institute
Stating subsequent treatment includes that the such as stereo-circulation of the audio effect processing to the microphone input audio signal is processed, filtering process, solution
Code and effect enhanced processing, the loudspeaker to drive restore sound.
In the present embodiment, by when the signal peak is not in default recognitiion gate limits, to the sound
Frequency signal carries out gain-adjusted process, and the audio output apparatus are known to the audio signal after gain-adjusted process
Not；The audio signal after by identification carries out audio, filtering, decodes and effect enhanced processing, described to drive loudspeaker to play
Audio signal.As the signal after to gain-adjusted carries out every subsequent treatment, it is thus possible to make signal peak be not in presetting
The microphone input audio signal in recognitiion gate limits is accurately exported on a television set, and then lifts Consumer's Experience.
Further, on the basis of the first embodiment of method for regulating audio signal of the present invention, there is provided audio signal is adjusted
Whether the 5th embodiment of section method, in the 5th embodiment, judging the signal peak in the default of audio output apparatus
In recognitiion gate limits after step, methods described includes：
When the signal peak is in default recognitiion gate limits, directly the audio signal is sent to audio frequency
Output equipment, the audio output apparatus carry out audio to the microphone input audio signal, filtering, and decoding process, with reality
The input audio signal is now played on a television set.
Due to after user's purchase microphone, although microphone can be amplified process to input audio signal, but put
Big process after audio signal be likely to be in default recognitiion gate limits, audio signal after by enhanced processing send to
After television set comparator, when not finding to exceed in default recognitiion gate limits beyond the signal peak, MCU discernible signals
Peak value, thus directly send the microphone input audio signal to audio output apparatus core controller, the audio frequency is defeated
Going out device core controller carries out audio to the microphone input audio signal, filtering, decoding process, to realize in television set
Upper play the input audio frequency.
In the present embodiment, by when the signal peak is in default recognitiion gate limits, directly will be described
Audio signal is sent to audio output apparatus, and the audio output apparatus carry out audio to the microphone input audio signal,
Filtering, decoding process, to realize playing the input audio signal on a television set.Due to when the signal peak is in pre-
If the microphone input audio signal in recognitiion gate limits, directly transmitting MCU carries out subsequent treatment, thus avoids gain
Other processes such as regulation, have saved resource, have improved Consumer's Experience.
The present invention provides a kind of audio signal adjusting means, and first in a kind of audio signal adjusting means of the invention is implemented
In example, with reference to Fig. 4, the audio signal adjusting means includes：
Detection module 10, for when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining in real time
The signal peak of the audio signal；
On existing market, microphone species is generally divided into moving-coil type, crystal formula, carbon granule formula, aluminium band type and condenser type etc., is
Avoid producing unnecessary noise, family KTV typically selects dynamic microphones, and with microphone service life problem with
And user is to reasons such as the pursuits of KTV audios, it usually needs user oneself selects purchase microphone, the receiver of microphone to be divided into
Not band signal amplify with signal amplify two kinds of functions, as shown in figure 8, the present invention when detect microphone input audio frequency letter
Number when, be when detect user by microphone end to audio output apparatus be input into audio frequency when, the audio output apparatus bag
Sound equipment, television set etc. is included, the signal peak of the detection microphone input audio signal is obtained in real time, the signal peak is detected
Circuit reduction figure as shown in figure 11, the signal peak is the maximum of signal amplitude in preset duration, and the peak value can be
Change.
Judge module 20, for judging whether the signal peak is in the default identification threshold value model of audio output apparatus
In enclosing；
It is noted that the audio output apparatus include MCU (core controller), comparator, the default recognitiion gate
Limits can be television set developer according to market situation set with update, while may also be user according to oneself requirement from
Row set, be the default recognitiion gate limits be with compatibility, by MCU controllable comparators with signal peak
Value is compared the default recognitiion gate limits of judgement, and comparator circuit simplification figure as shown in figure 13, is judging the signal
Before whether peak value is in default recognitiion gate limits, if sound signal frequencies change is fast, it is impossible to fast to frequency change
Voice signal in time locking or catch, accordingly the signal for detecting can be locked by such as peak holding unit etc.
Fixed, to keep the signal strength signal intensity peak value before fresh signal peak value occurs, after the intensity peak of input signal is locked, will
The peak value of the signal is sent to television set comparator, and television set comparator is by the intensity peak of the signal and default recognitiion gate
Limits are compared, comparator judged to be amplified the signal demand according to default threshold value or reduction at
Reason, still need not be processed to the signal, due to presetting what recognitiion gate limits were to determine, and microphone input letter
Number peak value changes because of the change of audio signal, thus comparison procedure is lasting.
Processing module 30, for when the signal peak is not in the default recognitiion gate limits, to described
Audio signal carries out gain-adjusted process, so that audio output apparatus are known to the audio signal after gain-adjusted process
Not and do not play.
Microphone due to buying is carried out to input audio signal after signal transacting, and microphone input audio signal peak has
May be not in default recognitiion gate limits, when microphone input audio signal peak is not in default identification threshold value model
When enclosing interior, gain-adjusted process is carried out to the microphone input audio signal, and according to microphone input audio signal peak
Judge to be amplified microphone input audio signal with the comparative result of predetermined threshold value or reduction is processed, right when needing
When microphone input audio signal is amplified process, audio signal amplification is carried out to which according to strict phase relation, described
Strict phase relation is that left channel signals information is strictly distinguished with right-channel signals information, and the amplification process is included to the sound
The overall amplification of frequency signal, in the same manner, when carrying out reducing process to microphone input audio signal, also includes defeated to the microphone
Enter the overall minimizing of audio signal, as automatic gain control process is using the closed-loop control with feedback, can voluntarily to input letter
Number adjusted, thus the audio signal after being adjusted is in accordingly default recognitiion gate limits, when to described
After the completion of signal gain is adjusted, the audio signal is sent to MCU (core controller), for television set core controller pair
Microphone input audio signal after the gain-adjusted is processed is identified, then again by MCU according to strict phase relation
Subsequent treatment, such as audio being carried out, being filtered, decoding etc., to realize the wheat being played on the output equipment such as television set or sound equipment
Gram wind input audio frequency, concrete signal adjusts process flow block diagram such as Fig. 9, shown in Figure 10.
In the present embodiment, by detection module 10, for when the sound for detecting the input of Mike's wind direction audio output apparatus
During frequency signal, the signal peak of the audio signal is obtained in real time；Judge module 20, for judging whether the signal peak is located
In the default recognitiion gate limits of audio output apparatus；Processing module 30, described in being not in when the signal peak
When in default recognitiion gate limits, gain-adjusted process is carried out to the audio signal, so that audio output apparatus are to described
Audio signal after gain-adjusted process is identified and plays.Due to automatic detection wheat after corresponding input audio signal is obtained
Gram wind input signal peak value, when peak value is not in default recognitiion gate limits, is adjusted automatically to the audio signal
Section gain process is to adjust the audio signal to default recognitiion gate limits, so that audio output apparatus are to the audio frequency
Signal is identified, and due to recognizing the audio signal completely, thus effectively prevents microphone signal distortion, and due to adjusting
After whole, the corresponding power of the audio signal presets bearing power without departing from television set, thus the present invention can solve the problem that TV set terminal
There are audio distortions when playing microphone input audio frequency, abnormal, and affect the technical problem of Consumer's Experience and personal safety.
Further, on the basis of the first embodiment of audio signal adjusting means of the present invention, there is provided audio signal is adjusted
Regulating device second embodiment, in a second embodiment, with reference to Fig. 5, the processing module includes：
First acquisition unit 31, for when the signal peak is not in default recognitiion gate limits, obtaining institute
State the proportionality coefficient of signal peak extreme value corresponding with respective doors limit value；
First processing units 32, for according to the proportionality coefficient audio signal is amplified or reduction at
Reason, so that the peak value of the audio signal after amplifying or reducing is in default recognitiion gate limits.
When the microphone input signal peak value is not in default recognitiion gate limits, need to be defeated to the microphone
Entering signal carries out gain-adjusted process, and gain-adjusted processes detailed process and may include first to obtain the microphone input signal peak value
The proportionality coefficient of extreme value corresponding with respective doors limit value, auxiliary are illustrated with specific embodiment, if microphone input of the present invention
When signal peak-peak V is 7V, and default recognitiion gate limits maximum is 6V, then the signal peak and respective doors limit value
The proportionality coefficient of corresponding extreme value is 6/7, and corresponding diminution 6/7 overall to the microphone input signal, so that signal peak of the present invention
It is changed into 6V after the process of value gain-adjusted, so that the microphone input audio signal peak after reducing is in default identification thresholding
In the range of value.In the same manner, if signal minimum peak V of the present invention is 2V, and default recognitiion gate limits minimum of a value is when being 3V,
Then the proportionality coefficient of signal peak extreme value corresponding with respective doors limit value is 3/2, whole to the microphone input signal intensity
Body phase should expand 3/2, so that microphone input signal minimum peak gain-adjusted of the present invention is changed into 3V after processing, so as to put
The peak value of the microphone input audio signal after big is in default recognitiion gate limits.
In the present embodiment, by first acquisition unit 31, for being not in default identification thresholding when the signal peak
When in the range of value, the proportionality coefficient of signal peak extreme value corresponding with respective doors limit value is obtained；First processing units 32, are used for
The audio signal is amplified according to the proportionality coefficient or reduction is processed, so that the sound after amplifying or reducing
The peak value of frequency signal is in default recognitiion gate limits.Due to obtaining signal peak extreme value corresponding with respective doors limit value
Proportionality coefficient, the microphone input audio signal is amplified according to the proportionality coefficient or reduction process, thus
Whole microphone input audio signals can be made in the range of respective doors limit value, and then user effectively be prevented using different Mikes
The distortion of sound is caused when wind system, affects audio visual effect.
Further, on the basis of the first embodiment of audio signal adjusting means of the present invention, there is provided audio signal is adjusted
Regulating device 3rd embodiment, in the third embodiment, with reference to Fig. 6, the detection module includes：
Second acquisition unit 11, for when detect Mike's wind direction audio output apparatus input audio signal when, in real time
Obtain the signal amplitude of the audio signal；
First holding unit 12, amplitude peak when increasing for the signal amplitude stopping using the audio signal is used as institute
The current demand signal peak value of audio signal is stated, and keeps the current demand signal peak value；
Second holding unit 13, for when the signal peak of subsequently described audio signal is more than current demand signal peak value, inciting somebody to action
Amplitude peak when the signal amplitude stopping of subsequently described audio signal increases is used as new current demand signal peak value, and keeps new
Current demand signal peak value.
As user is during KTV amusements, the microphone input audio signal is changed constantly, and sound
Signal frequency changes soon, thus it is also instantaneously carried out that peakvalue's checking or peak value are obtained, but peak holding process can a guarantor
The amplitude peak for preserving audio signal is held, the amplitude peak is current demand signal peak value, and the signal peak includes peak-peak
With minimum peak, peak holding circuit simplification figure as shown in figure 12, when the signal peak of subsequently described audio signal is more than current
During signal peak, the signal amplitude of subsequently described audio signal is stopped amplitude peak when increasing as new current demand signal peak
Value, and keeps preserving new current demand signal peak value, as shown in fig. 7, wherein t is phase place or time, V is magnitude of voltage, V0For electricity
Voltage crest value, signal peak are corresponding with magnitude of voltage.During keeping preserving signal peak, the microphone input audio signal peak
Value phase place corresponding with the audio signal peak is that temporal information is corresponded.
In the present embodiment, by second acquisition unit 11, the input of Mike's wind direction audio output apparatus is detected for working as
Audio signal when, obtain the signal amplitude of the audio signal in real time；First holding unit 12, for by the audio signal
Signal amplitude stop amplitude peak when increasing as the current demand signal peak value of the audio signal, and keep the current letter
Number peak value；Second holding unit 13, for when the signal peak of subsequently described audio signal is more than current demand signal peak value, by after
The signal amplitude for continuing the audio signal stops amplitude peak when increasing as new current demand signal peak value, and keeps new and work as
Front signal peak value.Due to for will obtain audio signal peak preservation process after, then send it to comparator by the peak value with
Predetermined threshold value is compared, though thus prevent as audio signal is continually changing and cause accurately to obtain the audio frequency letter
Number but due to accurately not preserving the audio signal peak for needing, and then affect the technical problem of the subsequent treatment of sound signal.
Further, on the basis of the first embodiment of audio signal adjusting means of the present invention, there is provided audio signal is adjusted
Regulating device fourth embodiment, in the fourth embodiment, the processing module includes：
Gain adjustment unit, for when the signal peak is not in default recognitiion gate limits, to the sound
Frequency signal carries out gain-adjusted process, and the audio output apparatus are known to the audio signal after gain-adjusted process
Not；
Second processing unit, carries out audio for the audio signal after by identification, filtering, at decoding and effect amplification
Reason, to drive loudspeaker to play the audio signal.
When the microphone input signal peak value is not in default recognitiion gate limits, to the microphone input
Audio signal carries out gain-adjusted process, and the audio output apparatus core controller is to the Mike after gain-adjusted process
Wind input audio signal is identified, and is audio frequency after gain-adjusted process is carried out to microphone input audio signal
Signal is integrally that MCU is capable of identify that, after MCU recognizes the microphone input audio signal, MCU is closed according to strict phase place
System carries out subsequent treatment, and the phase relation includes that the process to L channel with R channel etc. is not obscured mutually, strict differentiation, institute
Stating subsequent treatment includes that the such as stereo-circulation of the audio effect processing to the microphone input audio signal is processed, filtering process, solution
Code and effect enhanced processing, the loudspeaker to drive restore sound.
In the present embodiment, by gain adjustment unit, for being not in default identification threshold value when the signal peak
In the range of when, carry out gain-adjusted process to the audio signal, after the audio output apparatus are to gain-adjusted process
Audio signal be identified；Second processing unit, carries out audio for the audio signal after by identification, filtering, decoding
And effect enhanced processing, to drive loudspeaker to play the audio signal.As the signal after to gain-adjusted carries out items subsequently
Process, it is thus possible to which the microphone input audio signal for making signal peak be not in default recognitiion gate limits is in electricity
Depending on accurately exporting on machine, and then lift Consumer's Experience.
Further, on the basis of the first embodiment of audio signal adjusting means of the present invention, there is provided audio signal is adjusted
The 5th embodiment of regulating device, in the 5th embodiment, the audio signal adjusting means also includes：
Sending module, for when the signal peak is in default recognitiion gate limits, directly by the audio frequency
Signal is sent to audio output apparatus, and the audio output apparatus carry out audio to the microphone input audio signal, filtering,
Decoding process, to realize playing the input audio signal on a television set.
Due to after user's purchase microphone, although microphone can be amplified process to input audio signal, but put
Big process after audio signal be likely to be in default recognitiion gate limits, audio signal after by enhanced processing send to
After television set comparator, when not finding to exceed in default recognitiion gate limits beyond the signal peak, MCU discernible signals
Peak value, thus directly send the microphone input audio signal to audio output apparatus core controller, the audio frequency is defeated
Going out device core controller carries out audio to the microphone input audio signal, filtering, decoding process, to realize in television set
Upper play the input audio frequency.
In the present embodiment, by sending module, for when the signal peak is in default recognitiion gate limits
When, directly the audio signal is sent to audio output apparatus, the audio output apparatus are to the microphone input audio frequency
Signal carries out audio, filtering, decoding process, to realize playing the input audio signal on a television set.
When the signal peak is in default recognitiion gate limits, directly the audio signal is sent to audio frequency
Output equipment, the audio output apparatus carry out audio to the microphone input audio signal, filtering, and decoding process, with reality
The input audio signal is now played on a television set.Due to when the signal peak is in default recognitiion gate limits
Microphone input audio signal, directly transmitting MCU carries out subsequent treatment, thus avoids other processes such as gain-adjusted, section
About resource, improves Consumer's Experience.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of method for regulating audio signal, it is characterised in that the method for regulating audio signal includes：
When the audio signal of Mike's wind direction audio output apparatus input is detected, the signal peak of the audio signal is obtained in real time
Value；
Judge the signal peak whether in the default recognitiion gate limits of audio output apparatus；
When the signal peak is not in the default recognitiion gate limits, gain-adjusted is carried out to the audio signal
Process, so that audio output apparatus are identified and play to the audio signal after gain-adjusted process.
2. method for regulating audio signal as claimed in claim 1, it is characterised in that described be not in institute when the signal peak
When stating in default recognitiion gate limits, carrying out gain-adjusted process step to the audio signal includes：
When the signal peak is not in default recognitiion gate limits, the signal peak and respective doors limit value pair is obtained
Answer the proportionality coefficient of extreme value；
The audio signal is amplified according to the proportionality coefficient or reduction is processed, so that the institute after amplifying or reducing
The peak value for stating audio signal is in default recognitiion gate limits.
3. method for regulating audio signal as claimed in claim 1, it is characterised in that described defeated when detect Mike's wind direction audio frequency
When going out the audio signal that equipment is input into, the signal peak step for obtaining the audio signal in real time includes：
When the audio signal of Mike's wind direction audio output apparatus input is detected, the signal width of the audio signal is obtained in real time
Degree；
The signal amplitude of the audio signal is stopped amplitude peak when increasing as the current demand signal peak of the audio signal
Value, and keep the current demand signal peak value；
When the signal peak of subsequently described audio signal is more than current demand signal peak value, by the signal width of subsequently described audio signal
Amplitude peak when degree stopping increases is used as new current demand signal peak value, and keeps new current demand signal peak value.
4. the method for regulating audio signal as described in any one of claim 1-3, it is characterised in that described when the signal peak
When being not in the default recognitiion gate limits, gain-adjusted process is carried out to the audio signal, for audio output
Equipment is identified and plays step including to the audio signal after gain-adjusted process：
When the signal peak is not in default recognitiion gate limits, the audio signal is carried out at gain-adjusted
Reason, the audio output apparatus are identified to the audio signal after gain-adjusted process；
The audio signal after by identification carries out audio, filtering, decodes and effect enhanced processing, described to drive loudspeaker to play
Audio signal.
5. method for regulating audio signal as claimed in claim 1, it is characterised in that judging whether the signal peak is in
In the default recognitiion gate limits of audio output apparatus after step, methods described includes：
When the signal peak is in default recognitiion gate limits, directly the audio signal is sent to audio output
Equipment, the audio output apparatus carry out audio to the microphone input audio signal, filtering, decoding process, to realize
The input audio signal is played on television set.
6. a kind of audio signal adjusting means, it is characterised in that the audio signal adjusting means includes：
Detection module, for when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining the sound in real time
The signal peak of frequency signal；
Whether judge module, for judging the signal peak in the default recognitiion gate limits of audio output apparatus；
Processing module, for when the signal peak is not in the default recognitiion gate limits, believing to the audio frequency
Number gain-adjusted process is carried out, so that audio output apparatus are identified and broadcast to the audio signal after gain-adjusted process
Put.
7. audio signal adjusting means as claimed in claim 6, it is characterised in that the processing module includes：
First acquisition unit, for when the signal peak is not in default recognitiion gate limits, obtaining the signal
The proportionality coefficient of peak value extreme value corresponding with respective doors limit value；
First processing units, for the audio signal is amplified according to the proportionality coefficient or reduction process so that
The peak value of the audio signal after amplifying or reducing is in default recognitiion gate limits.
8. audio signal adjusting means as claimed in claim 6, it is characterised in that the detection module includes：
Second acquisition unit, for when the audio signal of Mike's wind direction audio output apparatus input is detected, obtaining institute in real time
State the signal amplitude of audio signal；
First holding unit, amplitude peak when increasing for the signal amplitude stopping using the audio signal is used as the audio frequency
The current demand signal peak value of signal, and keep the current demand signal peak value；
Second holding unit, for when the signal peak of subsequently described audio signal is more than current demand signal peak value, by follow-up institute
The signal amplitude for stating audio signal stops amplitude peak when increasing as new current demand signal peak value, and keeps new current letter
Number peak value.
9. the audio signal adjusting means as described in any one of claim 6-8, it is characterised in that the processing module includes：
Gain adjustment unit, for when the signal peak is not in default recognitiion gate limits, believing to the audio frequency
Gain-adjusted process number is carried out, the audio output apparatus are identified to the audio signal after gain-adjusted process；
Second processing unit, carries out audio for the audio signal after by identification, filtering, decodes and effect enhanced processing,
To drive loudspeaker to play the audio signal.
10. audio signal adjusting means as claimed in claim 6, it is characterised in that the audio signal adjusting means is also wrapped
Include：
Sending module, for when the signal peak is in default recognitiion gate limits, directly by the audio signal
Send to audio output apparatus, the audio output apparatus carry out audio to the microphone input audio signal, filter, decoding
Process, to realize playing the input audio signal on a television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611223205.1A CN106507245A (en) | 2016-12-26 | 2016-12-26 | Method for regulating audio signal and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611223205.1A CN106507245A (en) | 2016-12-26 | 2016-12-26 | Method for regulating audio signal and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106507245A true CN106507245A (en) | 2017-03-15 |
Family
ID=58334102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611223205.1A Pending CN106507245A (en) | 2016-12-26 | 2016-12-26 | Method for regulating audio signal and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106507245A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071643A (en) * | 2017-04-24 | 2017-08-18 | 深圳市元征科技股份有限公司 | Sound conduction method, device and readable storage medium storing program for executing based on bony glasses |
| CN107172560A (en) * | 2017-06-28 | 2017-09-15 | 青岛海信移动通信技术股份有限公司 | The method for detecting abnormality and mobile terminal of microphone in a kind of mobile terminal |
| CN107548214A (en) * | 2017-08-18 | 2018-01-05 | 广东思派康电子科技有限公司 | A kind of method and apparatus of laser earphone lamp effect control |
| CN109104655A (en) * | 2018-08-24 | 2018-12-28 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its microphone gain adjusting method, device, system |
| CN109730721A (en) * | 2019-01-25 | 2019-05-10 | 业成科技（成都）有限公司 | Physiological characteristic data measuring device |
| CN110493616A (en) * | 2018-05-15 | 2019-11-22 | 中国移动通信有限公司研究院 | A kind of acoustic signal processing method, device, medium and equipment |
| CN110648685A (en) * | 2019-09-26 | 2020-01-03 | 百度在线网络技术（北京）有限公司 | Device detection method and device, electronic device and readable storage medium |
| CN110708633A (en) * | 2019-10-29 | 2020-01-17 | 科大讯飞股份有限公司 | Voltage matching circuit and system |
| CN111049972A (en) * | 2019-11-20 | 2020-04-21 | 维沃移动通信有限公司 | Audio playing method and terminal equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399523A (en) * | 2008-09-05 | 2009-04-01 | 宇龙计算机通信科技(深圳)有限公司 | Gain control method and system for playing audio signal |
| CN101459415A (en) * | 2008-11-26 | 2009-06-17 | 苏州顺芯半导体有限公司 | Volume automatic control method and circuit in digital audio field |
| CN101729034A (en) * | 2008-10-31 | 2010-06-09 | 美商富迪科技股份有限公司 | Speech processing apparatus, dynamic range control module, and method for amplitude adjustment for a speech signal |
| CN102195581A (en) * | 2010-03-18 | 2011-09-21 | 承景科技股份有限公司 | Method for adjusting volume of digital audio signal |
-
2016
- 2016-12-26 CN CN201611223205.1A patent/CN106507245A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399523A (en) * | 2008-09-05 | 2009-04-01 | 宇龙计算机通信科技(深圳)有限公司 | Gain control method and system for playing audio signal |
| CN101729034A (en) * | 2008-10-31 | 2010-06-09 | 美商富迪科技股份有限公司 | Speech processing apparatus, dynamic range control module, and method for amplitude adjustment for a speech signal |
| CN101459415A (en) * | 2008-11-26 | 2009-06-17 | 苏州顺芯半导体有限公司 | Volume automatic control method and circuit in digital audio field |
| CN102195581A (en) * | 2010-03-18 | 2011-09-21 | 承景科技股份有限公司 | Method for adjusting volume of digital audio signal |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107071643A (en) * | 2017-04-24 | 2017-08-18 | 深圳市元征科技股份有限公司 | Sound conduction method, device and readable storage medium storing program for executing based on bony glasses |
| CN107172560A (en) * | 2017-06-28 | 2017-09-15 | 青岛海信移动通信技术股份有限公司 | The method for detecting abnormality and mobile terminal of microphone in a kind of mobile terminal |
| CN107548214A (en) * | 2017-08-18 | 2018-01-05 | 广东思派康电子科技有限公司 | A kind of method and apparatus of laser earphone lamp effect control |
| CN110493616A (en) * | 2018-05-15 | 2019-11-22 | 中国移动通信有限公司研究院 | A kind of acoustic signal processing method, device, medium and equipment |
| CN110493616B (en) * | 2018-05-15 | 2021-08-06 | 中国移动通信有限公司研究院 | Audio signal processing method, device, medium and equipment |
| CN109104655A (en) * | 2018-08-24 | 2018-12-28 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its microphone gain adjusting method, device, system |
| CN109730721A (en) * | 2019-01-25 | 2019-05-10 | 业成科技（成都）有限公司 | Physiological characteristic data measuring device |
| CN110648685A (en) * | 2019-09-26 | 2020-01-03 | 百度在线网络技术（北京）有限公司 | Device detection method and device, electronic device and readable storage medium |
| CN110708633A (en) * | 2019-10-29 | 2020-01-17 | 科大讯飞股份有限公司 | Voltage matching circuit and system |
| CN110708633B (en) * | 2019-10-29 | 2021-08-17 | 科大讯飞股份有限公司 | Voltage matching circuit and system |
| CN111049972A (en) * | 2019-11-20 | 2020-04-21 | 维沃移动通信有限公司 | Audio playing method and terminal equipment |
| CN111049972B (en) * | 2019-11-20 | 2021-04-27 | 维沃移动通信有限公司 | Audio playing method and terminal equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106507245A (en) | Method for regulating audio signal and device | |
| EP3512185B1 (en) | Volume adjustment method and terminal | |
| CN103081356B (en) | Method and system for controlling distortion in a critical frequency band of an audio signal | |
| CN102124758B (en) | Hearing aid, hearing assistance system, walking detection method, and hearing assistance method | |
| KR101455710B1 (en) | Method and apparatus for audio intelligibility enhancement and computing apparatus | |
| US7688986B2 (en) | Loudspeaker system | |
| CN101997498A (en) | Volume adjusting method and device | |
| US20140078404A1 (en) | Method and system for automatically adjusting television volume, television set and television remote controller | |
| JP2010513974A (en) | System for processing audio data | |
| CA2795189A1 (en) | Automatic gain control | |
| US20180166090A1 (en) | Voice signal processing apparatus and voice signal processing method | |
| CN106504765A (en) | A kind of auto gain control method of audio signal and device | |
| CN113747336B (en) | Method for tuning and adapting sound field in different spaces based on audio processor | |
| US9473102B2 (en) | Level adjusting circuit, digital sound processor, audio AMP integrated circuit, electronic apparatus and method of automatically adjusting level of audio signal | |
| US20230044546A1 (en) | Multiband limiter modes and noise compensation methods | |
| CN102970632A (en) | Sound based volume adjustment device, product and method | |
| CN105091208A (en) | Method and system for controlling air speed of air conditioner | |
| CN113259801B (en) | Horn noise reduction method and related device of intelligent earphone | |
| US11276416B2 (en) | Method, system and storage medium for solving echo cancellation failure | |
| CN107181996A (en) | The method and apparatus that a kind of audio amplitude for audio amplifier is limited | |
| CN114095835B (en) | Earphone through mode control method and device, earphone equipment and storage medium | |
| CN107896356B (en) | Audio control method and system of FM control system | |
| US7081926B2 (en) | Automatic gain control apparatus for video signal and adjusting method thereof | |
| US8914281B2 (en) | Method and apparatus for processing audio signal in a mobile communication terminal | |
| CN205212795U (en) | Compression clipper -limiter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |
|
| RJ01 | Rejection of invention patent application after publication |