CN110493693A - A kind of acoustic signal processing method and device - Google Patents
A kind of acoustic signal processing method and device Download PDFInfo
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- CN110493693A CN110493693A CN201910831015.5A CN201910831015A CN110493693A CN 110493693 A CN110493693 A CN 110493693A CN 201910831015 A CN201910831015 A CN 201910831015A CN 110493693 A CN110493693 A CN 110493693A
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- 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
- H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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Abstract
The embodiment of the present application provides a kind of acoustic signal processing method and device, is related to audio signal field, comprising: carries out signal decomposition to audio signal, obtains the first decomposed signal and the second decomposed signal；Chauvent's criterion is carried out to the first decomposed signal to handle to obtain the first processing signal, and chauvent's criterion is carried out to the second decomposed signal and handles to obtain second processing signal；The first processing signal of superposition and second processing signal obtain superposed signal；Digital-to-analogue conversion is carried out to superposed signal to handle to obtain output signal.As it can be seen that implementing this embodiment, the output quality of audio signal can be improved, avoid distortion serious situation from occurring, to reach the audibility that user wants.
Description
Technical field
This application involves audio signal technical fields, in particular to a kind of acoustic signal processing method and device.
Background technique
Currently, with digital Age fast-developing, requirement of the people to sound timbre becomes higher and higher, wherein for
It utters long and high-pitched sounds this traditional problem, people also become increasingly to be impatient at.However, it has been found in practice that current chauvent's criterion side
Method is generally only that the utter long and high-pitched sounds signal of part eliminates, so that uttering long and high-pitched sounds cannot be heard by user, it is possible thereby to learn, it is traditional
Chauvent's criterion method can cause biggish interference to original audio, so that audio signal distortion is serious, and then be not achieved
The audibility that user wants.
Summary of the invention
The embodiment of the present application is designed to provide a kind of acoustic signal processing method and device, can be improved audio signal
Output quality, avoid distortion serious situation occur, to reach the audibility that user wants.
The embodiment of the present application provides a kind of acoustic signal processing method, which comprises
Signal decomposition is carried out to audio signal, obtains the first decomposed signal and the second decomposed signal；
Chauvent's criterion is carried out to first decomposed signal to handle to obtain the first processing signal, and is decomposed and believed to described second
Number carry out chauvent's criterion handle to obtain second processing signal；
It is superimposed the first processing signal and the second processing signal obtains superposed signal；
Digital-to-analogue conversion is carried out to the superposed signal to handle to obtain output signal.
During above-mentioned realization, which can preferentially be decomposed audio signal, be obtained more
A decomposed signal, to guarantee that the sound quality characteristic in each decomposed signal will not be lost；Also, getting multiple decomposed signals
Later, corresponding audio processing is carried out to each decomposed signal, obtains corresponding processing signal, to ensure that each decomposition letter
There will not be abnormal signal in number, and then improve audio quality；Then, multiple processing signals are overlapped, are obtained complete
Superposed signal so that audio signal is optimised reduction, to ensure that the integrality of audio signal；Finally, believing audio
Number carry out digital-to-analogue conversion processing, obtain the output signal that user can listen to, allow the user to uppick high tone quality
Audio, to reach its desired audibility.As it can be seen that implement this embodiment, can by the characteristic of signal to audio into
The corresponding processing of row, achievees the effect that guarantee sound quality, and then reach the audibility that user wants.
Further, described that signal decomposition is carried out to audio signal, obtain the first decomposed signal and the second decomposed signal
Step, comprising:
Band decomposition is carried out to audio signal according to preset frequency range, the first decomposed signal and second is obtained and decomposes letter
Number.
During above-mentioned realization, audio signal can according to preset frequency range or preset multiple frequency ranges into
Row band decomposition obtains the decomposed signal based on different frequency bands, specifically, should during can also decompose to obtain high-frequency signal or
Person's low frequency signal, so that the available corresponding chauvent's criterion processing of corresponding decomposed signal, to improve at the chauvent's criterion
The stability of reason, the not single-minded situation for avoiding chauvent's criterion from handling occur.
Further, described that first decomposed signal progress chauvent's criterion is handled to obtain the first processing signal and right
Second decomposed signal carries out chauvent's criterion and handles the step of obtaining second processing signal
Shift frequency is carried out to first decomposed signal and handles to obtain the first processing signal, and to second decomposed signal into
Row trap handles to obtain second processing signal.
It is that shift frequency is handled to the chauvent's criterion processing that the first decomposed signal carries out, to second point during above-mentioned realization
Solve signal carry out chauvent's criterion processing be trap handle, it can be seen that, at least used in this method two kinds to decomposed signal
The method handled obtains handling letter accordingly so that each decomposed signal can be handled by specific mode
Number, and then the processing capacity to audio signal is improved, high degree has ensured sound quality.
Further, described that first decomposed signal progress chauvent's criterion is handled to obtain the first processing signal and right
Before the second decomposed signal progress chauvent's criterion handles the step of obtaining second processing signal, the method also includes:
Judge in second decomposed signal with the presence or absence of signal of uttering long and high-pitched sounds；
When in second decomposed signal exist utter long and high-pitched sounds signal when, according to it is described utter long and high-pitched sounds signal carry out trap matching, obtain
Trap control instruction corresponding with the signal of uttering long and high-pitched sounds；
Store the trap control instruction.
During above-mentioned realization, the trap control instruction of storage can be repeated calling, so as to substantially avoid root
The operation that new trap control instruction is calculated is carried out according to the second decomposed signal, and then improves the inhibition efficiency uttered long and high-pitched sounds.
Further, described that the step of obtaining second processing signal is handled to second decomposed signal progress chauvent's criterion
Include:
Chauvent's criterion is carried out to second decomposed signal according to the trap control instruction to handle to obtain second processing letter
Number.
During above-mentioned realization, can preferentially it utter long and high-pitched sounds before carrying out chauvent's criterion processing to the second decomposed signal
It detects (detection of uttering long and high-pitched sounds), if in the presence of uttering long and high-pitched sounds, then trap processing is carried out to signal of uttering long and high-pitched sounds, and trap processing is basis
What the trap control instruction that trap module is sent was handled；Wherein, the trap control instruction can be according to utter long and high-pitched sounds signal into
What row obtained after calculating, it is also possible to basis and utters long and high-pitched sounds what signal was obtained in database matching.As it can be seen that implementing this embodiment party
Formula, can to avoid the audio processing uttered long and high-pitched sounds when not occurring, improve audio quality, can also utter long and high-pitched sounds occur when in several ways
Trap situation is controlled, to improve the ability and reliability of trap.
The embodiment of the present application second aspect provides a kind of audio signal processor, the audio signal processor packet
It includes:
Decomposition unit obtains the first decomposed signal and the second decomposed signal for carrying out signal decomposition to audio signal；
Processing unit handles to obtain the first processing signal for carrying out chauvent's criterion to first decomposed signal, and right
Second decomposed signal carries out chauvent's criterion and handles to obtain second processing signal；
Superpositing unit obtains superposed signal for being superimposed the first processing signal and the second processing signal；
Converting unit handles to obtain output signal for carrying out digital-to-analogue conversion to the superposed signal.
During above-mentioned realization, audio signal processor includes decomposition unit, processing unit, superpositing unit and turns
Four units of unit are changed, which can cooperate, and Each performs its own functions, specifically, decomposition unit can be to audio
Signal is decomposed, and processing unit can carry out chauvent's criterion processing to the decomposed signal that decomposition unit decomposes, and is obtained everywhere
Manage signal, superpositing unit then can according to the rule of decomposition will processing Signal averaging to together, obtaining complete audio signal, and
Converting unit then can carry out digital-to-analogue conversion to the audio signal that superposition obtains, so that user can listen to obtain.As it can be seen that real
This embodiment is applied, which successively can carry out respective handling to the audio signal received and obtain height
The audio of quality, and distortion serious situation can also be avoided to occur, to reach the audibility that user wants.
Further, the decomposition unit is specifically used for carrying out frequency band point to audio signal according to preset frequency range
Solution, obtains the first decomposed signal and the second decomposed signal.
During above-mentioned realization, decomposition unit can be decomposed to obtain according to preset frequency range to audio signal
Corresponding decomposed signal, consequently facilitating the processing of other units, and then improve the processing capacity of audio signal processor.
Further, the processing unit is specifically used for handling to obtain at first to first decomposed signal progress shift frequency
Signal is managed, and trap is carried out to second decomposed signal and handles to obtain second processing signal.
During above-mentioned realization, processing unit can limit chauvent's criterion method, so that decomposed signal is able to according to phase
The method answered is handled, to obtain handling signal accordingly.As it can be seen that can be improved using the processing unit to decomposed signal
Processing capacity, to improve to the effect of chauvent's criterion.
The embodiment of the present application third aspect provides a kind of electronic equipment, including memory and processor, the storage
Device is for storing computer program, and the processor runs the computer program so that the electronic equipment is executed according to this Shen
It please acoustic signal processing method described in any one of embodiment first aspect.
The embodiment of the present application fourth aspect provides a kind of computer readable storage medium, is stored with computer program and refers to
It enables, when the computer program instructions are read and run by a processor, executes any one of the embodiment of the present application first aspect
The acoustic signal processing method.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application will make below to required in the embodiment of the present application
Attached drawing is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore should not be seen
Work is the restriction to range, for those of ordinary skill in the art, without creative efforts, can be with
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram of acoustic signal processing method provided by the embodiments of the present application；
Fig. 2 is the flow diagram of another acoustic signal processing method provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of audio signal processor provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of another audio signal processor provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile the application's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Embodiment 1
Fig. 1 is please referred to, Fig. 1 provides a kind of flow diagram of acoustic signal processing method for the embodiment of the present application.It should
Acoustic signal processing method can be used in after receiving audio obtaining audio signal to audio progress analog-to-digital conversion, and to this
Audio signal is in the process of processing；Wherein, this method can be used for uttering long and high-pitched sounds there are the case where, to realize that inhibition is uttered long and high-pitched sounds guarantor
Demonstrate,prove the effect of sound quality, meanwhile, this method can be also used for uttering long and high-pitched sounds there is no the case where, to guarantee sound quality.Wherein, which believes
Number processing method includes:
S101, signal decomposition is carried out to audio signal, obtains the first decomposed signal and the second decomposed signal.
In the present embodiment, the first decomposed signal and the second decomposed signal come under a part of audio signal, and this point
The process of solution can be ignored the damage of audio signal.
In the present embodiment, the process of the decomposition can be carried out by filter module (module that such as filter device is constituted)
It decomposes.
In the present embodiment, the process of above-mentioned decomposition can be according to the progress of the size of frequency, specifically, the decomposition can
Think what high-pass filtering module and low-pass filtering module executed jointly.
For example, the process of above-mentioned decomposition can include by band decomposition module LPF (Low Pass Filter, it is low
Band filter module) and HPF (High Pass Filter, high frequency band filter module) to the audio signal of Whole frequency band (generally
20Hz~20kHz) it is divided into low frequency signal and high-frequency signal, frequency cut-point can listen to environment (or sound equipment according to different
System) test result configured, general frequency cut-point configuration range is 100Hz~500Hz.
In the present embodiment, the first decomposed signal and the second decomposed signal can divide into low frequency signal and high-frequency signal,
In the first decomposed signal correspond to low frequency signal, the second decomposed signal corresponds to high-frequency signal.
In the present embodiment, the decomposition of the acoustic signal processing method can also include third decomposed signal, the 4th decomposition
Signal etc., to not being limited in any way in this present embodiment.
As an alternative embodiment, carrying out signal decomposition to audio signal, the first decomposed signal and second are obtained
Before the step of decomposed signal, this method further include:
Input signal is obtained, and analog-to-digital conversion is carried out to input signal, the audio signal after obtaining analog-to-digital conversion.
Implement this embodiment, the input mode of audio signal can be added, to improve the complete of Audio Signal Processing
Face property and integrality.
S102, the first decomposed signal progress chauvent's criterion is handled to obtain the first processing signal, and to the second decomposed signal
Chauvent's criterion is carried out to handle to obtain second processing signal.
In the present embodiment, chauvent's criterion processing that the first decomposed signal is carried out can with the second decomposed signal carried out
Chauvent's criterion processing is identical, meanwhile, the processing of above-mentioned two chauvent's criterion can also be different, to not making any limit in this present embodiment
It is fixed.
In the present embodiment, when the first decomposed signal is carried out chauvent's criterion processing can with to the second decomposed signal into
When capable chauvent's criterion processing is identical, chauvent's criterion processing is all shift frequency processing, the first decomposed signal and the second decomposed signal
It all can be through bandpass filtering acquisition.Wherein, during being somebody's turn to do, can also there are third decomposed signal, the 4th decomposed signal, it is right
It is not limited in any way in this present embodiment.
In the present embodiment, the chauvent's criterion processing that the first decomposed signal carries out can be carried out with to the second decomposed signal
Chauvent's criterion processing it is not identical when, the chauvent's criterion processing may include a variety of processing modes, wherein a variety of processing modes
It can be with being determined according to the isolation of audio signal.
For example, when audio signal is the signal decomposition carried out according to frequency, then above-mentioned chauvent's criterion processing is then
It is the processing mode used based on its respective frequencies.
It handles to obtain the first processing as an alternative embodiment, carrying out chauvent's criterion to first decomposed signal
Signal, and to second decomposed signal carry out chauvent's criterion handle to obtain second processing signal may include:
According to the isolation to audio signal, chauvent's criterion is carried out to first decomposed signal and handles to obtain at first
Signal is managed, and chauvent's criterion is carried out to second decomposed signal and handles to obtain second processing signal.
Implement this embodiment, the Treatment Stability and treatment effect of audio signal can be improved, to obtain sound quality
Higher audio.
S103, the first processing signal of superposition and second processing signal obtain superposed signal.
In the present embodiment, the additive process also based on above-mentioned audio signal isolation, in this present embodiment no longer
Add to repeat.
In the present embodiment, superposed signal is the audio signal after optimization processing.
S104, superposed signal progress digital-to-analogue conversion is handled to obtain output signal.
In the present embodiment, superposed signal is digital signal, and output signal be analog signal, the output signal can by with
Family obtains, but superposed signal user can only observe.
In the present embodiment, acoustic signal processing method can be executed by computer, while the Audio Signal Processing side
Method can also be executed by other electronic equipments that can be handled audio, to not making any limit in this present embodiment
It is fixed.
As it can be seen that implementing acoustic signal processing method described in Fig. 1, preferentially audio signal can be decomposed, obtained
Multiple decomposed signals, to guarantee that the sound quality characteristic in each decomposed signal will not be lost；Also, getting multiple decomposition letters
After number, corresponding audio processing is carried out to each decomposed signal, corresponding processing signal is obtained, to ensure that each decomposition
There will not be abnormal signal in signal, and then improve audio quality；Then, multiple processing signals are overlapped, have been obtained
Whole superposed signal, so that audio signal is optimised reduction, to ensure that the integrality of audio signal；Finally, to audio
Signal carries out digital-to-analogue conversion processing, obtains the output signal that user can listen to, allows the user to uppick high tone quality
Audio, thus reach its desired audibility.As it can be seen that implement this embodiment, it can be by the characteristic of signal to audio
It performs corresponding processing, achievees the effect that guarantee sound quality, and then reach the audibility that user wants.
Embodiment 2
Fig. 2 is please referred to, Fig. 2 is the flow diagram of another acoustic signal processing method provided by the embodiments of the present application.
The flow diagram of acoustic signal processing method described in Fig. 2 is the stream of the acoustic signal processing method according to described in Fig. 1
Journey schematic diagram improves.Wherein, which includes:
S201, band decomposition is carried out to audio signal according to preset frequency range, obtains the first decomposed signal and second
Decomposed signal.
In the present embodiment, preset frequency range can be to be multiple, to not being limited in any way in this present embodiment.
In the present embodiment, the frequency range of the first decomposed signal can be 20Hz~100Hz, the frequency of the second decomposed signal
Rate may range from 80Hz~20kHz.
In the present embodiment, which can also be more, and corresponding decomposed signal can also increase.
In the present embodiment, frequency range can be the multiple frequency ranges divided by some threshold value, therefore the frequency
Rate range also may include above-mentioned frequency threshold.
S202, the first decomposed signal progress shift frequency is handled to obtain the first processing signal.
In the present embodiment, the first decomposed signal is low frequency signal, and shift frequency processing may range from 5Hz~10Hz, at this
Shift frequency in frequency range will not heap audio signal cause excessively to influence, thereby may be ensured that the quality of audio.
In the present embodiment, half sideband complex filter, half sideband complex filter of this kind can be used in the process of the shift frequency
Device can be a kind of cutoff frequency close to half low-pass filter of Fs/4.
For example, the first decomposed signal can be handled by the filter in this method, obtains complex signal,
Processing sequence is obtained by the acquisition and iterative calculation of discrete sampling point again, then carries out shift frequency meter further according to the processing sequence
It calculates, obtains calculated result, and then choose the real part result in calculated result as the first processing signal.Wherein, above-mentioned processing
Sequence can be made of the discrete sampling point of the sinusoidal and cosine signal of above-mentioned shift frequency frequency, i.e., be above-mentioned shift frequency frequency with frequency
Sinusoidal and cosine signal discrete sampling point as processing sequence.
S203, judge with the presence or absence of signal of uttering long and high-pitched sounds in the second decomposed signal, if so, executing step S204~S208；
If it is not, then terminating this process.
In the present embodiment, the method for detection of uttering long and high-pitched sounds can pass through PEHPR (Peak-to-Even Harmonic Power
Ratio, peak value even-order harmonic power ratio) and IPMP (Interframe Peak Magnitude Persistence, interframe peak
Value conservation degree) two conditions carry out detection of uttering long and high-pitched sounds.
In the present embodiment, joint two features of PEHPR and IPMP carry out detection of uttering long and high-pitched sounds, if two features are all sentenced simultaneously
Surely it produces and utters long and high-pitched sounds, then it is assumed that generation of uttering long and high-pitched sounds, and the candidate frequency point for meeting condition is defined as frequency point of uttering long and high-pitched sounds.
S204, according to uttering long and high-pitched sounds, signal carries out trap matching, obtains trap control instruction corresponding with signal of uttering long and high-pitched sounds.
In the present embodiment, trap matches the corresponding trap control instruction of Signal Matching that can utter long and high-pitched sounds according to, the trap control
System instructs the particular content for controlling trap, i.e., how to carry out trap.
In the present embodiment, above-mentioned matching process can match similar utter long and high-pitched sounds in the database and signal and extract correspondence
Trap control instruction.
In the present embodiment, above-mentioned matching process can also carry out calculating matching according to signal of uttering long and high-pitched sounds, and obtain calculated result,
And trap control instruction is determined according to calculated result；Above-mentioned determination process may be corresponding matching process.
S205, storage trap control instruction.
In the present embodiment, which uses after being stored for, so as to improve the subsequent effect used
Rate.
In the present embodiment, the trap control instruction is stored, it is ensured that can be with guaranteeing should after system closedown or power-off
Trap control instruction data will not lose.And the trap control instruction of storage, which is carried out output, during in the next use makes
With, restore last time shutdown before trap state.In practice, it if present video output environment does not change, utters long and high-pitched sounds a little
Too big variation will not generally also occur, just greatly reduce sound of uttering long and high-pitched sounds when detecting of uttering long and high-pitched sounds in this way.
S206, the second decomposed signal progress trap is handled to obtain second processing signal according to trap control instruction.
In the present embodiment, microwave trap in the audio signal processor can be according to the result of detection of uttering long and high-pitched sounds (i.e. pair
The trap control instruction that should be obtained) control the utter long and high-pitched sounds unlatching of trap function, the closing for trap function of uttering long and high-pitched sounds and trap function of uttering long and high-pitched sounds
Included depth adjustment function in energy.Wherein, it if uttering long and high-pitched sounds is never to listen, opens new trap module and carries out
Trap；If uttering long and high-pitched sounds is stored mistake (listening), notch depth downward is controlled.
In the present embodiment, if the depth for controlling microwave trap is raised and (adjusted back) for a long time there is no uttering long and high-pitched sounds,
It is lowered repeatedly if some microwave trap (or trap module) repeats up-regulation, it is solid that the microwave trap (or trap module), which is arranged,
Determine trapper, no longer raises.
S207, the first processing signal of superposition and second processing signal obtain superposed signal.
In the present embodiment, the additive process also based on above-mentioned audio signal isolation, in this present embodiment no longer
Add to repeat.
In the present embodiment, superposed signal is the audio signal after optimization processing.
S208, superposed signal progress digital-to-analogue conversion is handled to obtain output signal.
In the present embodiment, superposed signal is digital signal, and output signal be analog signal, the output signal can by with
Family obtains, but superposed signal user can only observe.
In the present embodiment, acoustic signal processing method can be executed by computer, while the Audio Signal Processing side
Method can also be executed by other electronic equipments that can be handled audio, to not making any limit in this present embodiment
It is fixed.
As it can be seen that implementing acoustic signal processing method described in Fig. 2, audio can be carried out by the characteristic of signal corresponding
Processing, achieve the effect that guarantee sound quality, and then reach the audibility that user wants；Chauvent's criterion processing can also be improved
Stability, avoid chauvent's criterion handle not single-minded situation occur；Each decomposed signal can also be allowed specific
Mode is handled, and obtains handling signal accordingly, and then improves the processing capacity to audio signal, and high degree has ensured sound
Matter；The audio processing uttered long and high-pitched sounds when not occurring can also be avoided, audio quality is improved, a variety of sides can also be passed through when uttering long and high-pitched sounds and occurring
Formula controls trap situation, to improve the ability and reliability of trap；It can also substantially avoid decomposing letter according to second
Number the operation that new trap control instruction is calculated is carried out, and then improves the inhibition efficiency uttered long and high-pitched sounds.
Embodiment 3
Fig. 3 is please referred to, Fig. 3 is a kind of structural schematic diagram of audio signal processor provided by the embodiments of the present application.Its
In, which includes:
Decomposition unit 310 obtains the first decomposed signal and second and decomposes letter for carrying out signal decomposition to audio signal
Number；
Processing unit 320 handles to obtain the first processing signal for carrying out chauvent's criterion to the first decomposed signal, and to the
Two decomposed signals carry out chauvent's criterion and handle to obtain second processing signal；
Superpositing unit 330 obtains superposed signal for being superimposed the first processing signal and second processing signal；
Converting unit 340 handles to obtain output signal for carrying out digital-to-analogue conversion to superposed signal.
In the present embodiment, content described in audio signal processor can all be quoted in embodiment 1 or embodiment 2
Description, this present embodiment is excessively repeated not doing.
As it can be seen that audio signal processor described in implementing Fig. 3, successively can carry out phase to the audio signal received
It should handle to obtain the audio of high quality, and distortion serious situation can also be avoided to occur, to reach the receipts that user wants
Listen effect.
Embodiment 4
Fig. 4 is please referred to, Fig. 4 is the structural schematic diagram of another audio signal processor provided by the embodiments of the present application.
The structural schematic diagram of audio signal processor described in Fig. 4 is the knot of the audio signal processor according to described in Fig. 3
Structure schematic diagram improves.Wherein, the audio signal processor further include:
Judging unit 350, for judging in the second decomposed signal with the presence or absence of signal of uttering long and high-pitched sounds；
Matching unit 360, when uttering long and high-pitched sounds signal for existing in the second decomposed signal, according to uttering long and high-pitched sounds, signal carries out trap
Match, obtains trap control instruction corresponding with signal of uttering long and high-pitched sounds；
Processing unit 320 is handled specifically for carrying out chauvent's criterion to the second decomposed signal according to trap control instruction
To second processing signal.
As an alternative embodiment, the audio signal processor further include:
Storage unit 370, for storing trap control instruction.
As an alternative embodiment, decomposition unit 310 is specifically used for believing audio according to preset frequency range
Number carry out band decomposition, obtain the first decomposed signal and the second decomposed signal.
As an alternative embodiment, processing unit 320 is specifically used for carrying out shift frequency processing to the first decomposed signal
The first processing signal is obtained, and trap is carried out to the second decomposed signal and handles to obtain second processing signal
In the present embodiment, content described in audio signal processor can all be quoted in embodiment 1 or embodiment 2
Description, this present embodiment is excessively repeated not doing.
As it can be seen that implementing audio signal processor described in Fig. 4, phase successively can be carried out to the audio signal received
It should handle to obtain the audio of high quality, and distortion serious situation can also be avoided to occur, to reach the receipts that user wants
Listen effect.
The embodiment of the present application provides a kind of electronic equipment, including memory and processor, and the memory is for depositing
Computer program is stored up, the processor runs the computer program so that the electronic equipment is executed according to the embodiment of the present application
Any one of 1 or embodiment 2 acoustic signal processing method.
The embodiment of the present application provides a kind of computer readable storage medium, is stored with computer program instructions, described
When computer program instructions are read and run by a processor, any one of the embodiment of the present application 1 or embodiment 2 audio letter are executed
Number processing method.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the application, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The above description is only an example of the present application, the protection scope being not intended to limit this application, for ability
For the technical staff in domain, various changes and changes are possible in this application.Within the spirit and principles of this application, made
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this application.It should also be noted that similar label and
Letter indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
In do not need that it is further defined and explained.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Claims (10)
1. a kind of acoustic signal processing method, which is characterized in that the described method includes:
Signal decomposition is carried out to audio signal, obtains the first decomposed signal and the second decomposed signal；
Chauvent's criterion is carried out to first decomposed signal and handles to obtain the first processing signal, and to second decomposed signal into
Row chauvent's criterion handles to obtain second processing signal；
It is superimposed the first processing signal and the second processing signal obtains superposed signal；
Digital-to-analogue conversion is carried out to the superposed signal to handle to obtain output signal.
2. acoustic signal processing method according to claim 1, which is characterized in that described to carry out signal point to audio signal
The step of solving, obtaining the first decomposed signal and the second decomposed signal, comprising:
Band decomposition is carried out to audio signal according to preset frequency range, obtains the first decomposed signal and the second decomposed signal.
3. acoustic signal processing method according to claim 1, which is characterized in that it is described to first decomposed signal into
Row chauvent's criterion handles to obtain the first processing signal, and carries out chauvent's criterion to second decomposed signal and handle to obtain at second
Manage signal the step of include:
Shift frequency is carried out to first decomposed signal to handle to obtain the first processing signal, and second decomposed signal is fallen into
Wave handles to obtain second processing signal.
4. acoustic signal processing method according to claim 1, which is characterized in that it is described to first decomposed signal into
Row chauvent's criterion handles to obtain the first processing signal, and carries out chauvent's criterion to second decomposed signal and handle to obtain at second
Before the step of managing signal, the method also includes:
Judge in second decomposed signal with the presence or absence of signal of uttering long and high-pitched sounds；
When exist in second decomposed signal utter long and high-pitched sounds signal when, trap matching is carried out according to the signal of uttering long and high-pitched sounds, is obtained and institute
State the corresponding trap control instruction of signal of uttering long and high-pitched sounds；
Store the trap control instruction.
5. acoustic signal processing method according to claim 4, which is characterized in that it is described to second decomposed signal into
Row chauvent's criterion handles the step of obtaining second processing signal and includes:
Chauvent's criterion is carried out to second decomposed signal according to the trap control instruction to handle to obtain second processing signal.
6. a kind of audio signal processor, which is characterized in that the audio signal processor includes:
Decomposition unit obtains the first decomposed signal and the second decomposed signal for carrying out signal decomposition to audio signal；
Processing unit handles to obtain the first processing signal for carrying out chauvent's criterion to first decomposed signal, and to described
Second decomposed signal carries out chauvent's criterion and handles to obtain second processing signal；
Superpositing unit obtains superposed signal for being superimposed the first processing signal and the second processing signal；
Converting unit handles to obtain output signal for carrying out digital-to-analogue conversion to the superposed signal.
7. audio signal processor according to claim 6, which is characterized in that the decomposition unit is specifically used for basis
Preset frequency range carries out band decomposition to audio signal, obtains the first decomposed signal and the second decomposed signal.
8. audio signal processor according to claim 6, which is characterized in that the processing unit is specifically used for institute
It states the first decomposed signal progress shift frequency to handle to obtain the first processing signal, and trap is carried out to second decomposed signal and is handled
To second processing signal.
9. a kind of electronic equipment, which is characterized in that the electronic equipment includes memory and processor, and the memory is used for
Computer program is stored, the processor runs the computer program so that the electronic equipment executes according to claim 1
To acoustic signal processing method described in any one of 5.
10. a kind of readable storage medium storing program for executing, which is characterized in that computer program instructions are stored in the read/write memory medium,
When the computer program instructions are read and run by a processor, perform claim requires 1 to 5 described in any item audio signals
Processing method.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182431A (en) * | 2019-12-27 | 2020-05-19 | 中山大学花都产业科技研究院 | Howling suppression method for conference sound reinforcement system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398054A (en) * | 2001-07-16 | 2003-02-19 | 松下电器产业株式会社 | Whistler detection and suppresser thereof, its method and computer program products |
| CN1767695A (en) * | 2005-09-08 | 2006-05-03 | 南京大学 | Howlround restraining method without voice quality damage |
| JP2006262098A (en) * | 2005-03-17 | 2006-09-28 | Yamaha Corp | Howling canceller |
| CN101808260A (en) * | 2009-04-15 | 2010-08-18 | 赵凡 | Audio dynamic feedback suppression method |
| CN102598708A (en) * | 2009-07-17 | 2012-07-18 | 雅马哈株式会社 | Howling canceller |
| CN105376677A (en) * | 2015-11-30 | 2016-03-02 | 深圳市海牛通信技术有限公司 | Real-time acoustic feedback inhibition method and system in mobile sound field |
| CN107333192A (en) * | 2017-05-08 | 2017-11-07 | 深圳市创锐实业有限公司 | A kind of method and apparatus of feedback inhibition for audio amplifier |
| CN109102819A (en) * | 2017-06-20 | 2018-12-28 | 中移（杭州）信息技术有限公司 | One kind is uttered long and high-pitched sounds detection method and device |
| CN110035367A (en) * | 2017-11-01 | 2019-07-19 | 奥迪康有限公司 | Feedback detector and hearing devices including feedback detector |
-
2019
- 2019-09-02 CN CN201910831015.5A patent/CN110493693A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398054A (en) * | 2001-07-16 | 2003-02-19 | 松下电器产业株式会社 | Whistler detection and suppresser thereof, its method and computer program products |
| JP2006262098A (en) * | 2005-03-17 | 2006-09-28 | Yamaha Corp | Howling canceller |
| CN1767695A (en) * | 2005-09-08 | 2006-05-03 | 南京大学 | Howlround restraining method without voice quality damage |
| CN101808260A (en) * | 2009-04-15 | 2010-08-18 | 赵凡 | Audio dynamic feedback suppression method |
| CN102598708A (en) * | 2009-07-17 | 2012-07-18 | 雅马哈株式会社 | Howling canceller |
| CN105376677A (en) * | 2015-11-30 | 2016-03-02 | 深圳市海牛通信技术有限公司 | Real-time acoustic feedback inhibition method and system in mobile sound field |
| CN107333192A (en) * | 2017-05-08 | 2017-11-07 | 深圳市创锐实业有限公司 | A kind of method and apparatus of feedback inhibition for audio amplifier |
| CN109102819A (en) * | 2017-06-20 | 2018-12-28 | 中移（杭州）信息技术有限公司 | One kind is uttered long and high-pitched sounds detection method and device |
| CN110035367A (en) * | 2017-11-01 | 2019-07-19 | 奥迪康有限公司 | Feedback detector and hearing devices including feedback detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182431A (en) * | 2019-12-27 | 2020-05-19 | 中山大学花都产业科技研究院 | Howling suppression method for conference sound reinforcement system |
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