CN108551631A - A kind of sound quality compensation method and mobile terminal - Google Patents
A kind of sound quality compensation method and mobile terminal Download PDFInfo
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- CN108551631A CN108551631A CN201810404912.3A CN201810404912A CN108551631A CN 108551631 A CN108551631 A CN 108551631A CN 201810404912 A CN201810404912 A CN 201810404912A CN 108551631 A CN108551631 A CN 108551631A
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- earphone
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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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
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Abstract
An embodiment of the present invention provides a kind of sound quality compensation method and mobile terminals.This method includes：The first audio signal is exported by loud speaker, wherein infrasound signal is carried in the first audio signal；According to collected second audio signal of microphone, target amplitude value corresponding with infrasound signal is obtained；According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；If it is not, then extracting the target compensation numerical value group corresponding with target amplitude value being locally stored；According to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.So as to during user uses earphone, monitor the wearing state of current earphone, and it is off-gauge in wearing state, current sound quality is compensated by pre-stored compensation numerical value group, and then when being effectively improved earpiece couples loosening, the negative effect of centering low frequency effectively improves the audition experience of earphone user.
Description
Technical field
The present invention relates to audio signal processing technique field more particularly to a kind of sound quality compensation method and mobile terminals.
Background technology
Earphone has been obtained for extensive use in the ordinary live and work of people, and high-fidelity music center is used with traditional
Audition mode compare, earphone is because its is small, and easy to carry, audition mode does not need stationary applica-tions, moreover, with micro-
The progress of type loudspeaker techniques, many outstanding earphones also accomplish very wide, very flat frequency response curve, to ensure that high-fidelity
Music Appreciation, so, also favored by more and more consumers, still, many manufacturers all pay special attention to the matter of earphone itself
Amount, and ignore user and hearing effect that earphone should be brought also is influenced whether to the wearing state of earphone.
According to investigations, the duration of the normal first use earphone of consumer is generally in 1-3 hour.In prolonged use process
In, earphone can couple the case where will appear loosening with the wearing of human ear duct.It is demonstrated experimentally that in the case where earphone loosens, meeting
Middle low frequency when to audition causes significantly to negatively affect.
Invention content
A kind of sound quality compensation method of offer of the embodiment of the present invention and mobile terminal, are being worn with solving earphone in the prior art
Wear coupling occur loosen in the case of, middle low frequency when to audition adversely affects, reduce user experience the problem of.
In order to solve the above-mentioned technical problem, the invention is realized in this way：
In a first aspect, an embodiment of the present invention provides a kind of sound quality compensation method, it is applied to mobile terminal, the method packet
It includes：
The first audio signal is exported by loud speaker, wherein infrasound signal is carried in the first audio signal；
According to collected second audio signal of microphone, target amplitude value corresponding with infrasound signal is obtained；
According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；
If it is not, then extracting the target compensation numerical value group corresponding with target amplitude value being locally stored；
According to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.
Second aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, and the mobile terminal includes：
Output module, for exporting the first audio signal by loud speaker, wherein carry infrasonic sound in the first audio signal
Wave signal；
First acquisition module, for according to collected second audio signal of microphone, obtaining corresponding with infrasound signal
Target amplitude value；
Judgment module, for according to target amplitude value, judging whether the current wearing state of earphone is standard wearing state；
Extraction module extracts the mesh corresponding with target amplitude value being locally stored if being judged as NO for judgment module
Mark compensation numerical value group；
Compensating module, for according to target compensation numerical value group, sound quality compensation to be carried out to the first audio signal.
The third aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, including：It memory, processor and is stored in
On the memory and the sound quality compensation program that can run on the processor, the sound quality compensation program is by the processor
The step of sound quality compensation method is realized when execution.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer readable storage medium, described computer-readable to deposit
It is stored with sound quality compensation program on storage media, the sound quality compensation side is realized when the sound quality compensation program is executed by processor
The step of method.
In embodiments of the present invention, the first audio signal is exported by loud speaker, wherein carried in the first audio signal
Infrasound signal；According to collected second audio signal of microphone, target amplitude value corresponding with infrasound signal is obtained；According to
According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；If it is not, then extraction be locally stored with
Target amplitude is worth corresponding target compensation numerical value group；According to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.
So as to during user uses earphone, monitor the wearing state of current earphone, and off-gauge in wearing state
In the case of, when being compensated to current sound quality by pre-stored compensation numerical value group, and then being effectively improved earpiece couples loosening,
The negative effect of centering low frequency effectively improves the audition experience of earphone user.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of one of the flow chart of sound quality compensation method in the embodiment of the present invention；
Fig. 2 is the two of the flow chart of a kind of sound quality compensation method in the embodiment of the present invention；
Fig. 3 is one of the block diagram of mobile terminal in the embodiment of the present invention；
Fig. 4 is the two of the block diagram of the mobile terminal in the embodiment of the present invention；
Fig. 5 is the three of the block diagram of the mobile terminal in the embodiment of the present invention；
Fig. 6 is the four of the block diagram of the mobile terminal in the embodiment of the present invention；
Fig. 7 is the five of the block diagram of the mobile terminal in the embodiment of the present invention；
Fig. 8 is the hardware architecture diagram of the mobile terminal of one embodiment of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one
Referring to Fig.1, it shows the flow chart of the sound quality compensation method of one embodiment of the invention, is applied to mobile terminal,
The method can specifically include following steps：
Step 101, the first audio signal is exported by loud speaker, wherein infrasound letter is carried in the first audio signal
Number.
Specifically, in an embodiment of the present invention, during user uses earphone, mobile terminal can have by it
The modules such as codec, power amplifier, analog audio signal is amplified processing, and drive the speaker exports the first sound
Frequency signal.
In an embodiment of the present invention, infrasound signal is carried in the first audio signal.That is, being listened using earphone in user
During sound, the audio played in earphone further includes having infrasound signal in addition to music.In an embodiment of the present invention,
10Hz may be selected in the frequency of infrasound signal, and signal strength is fixed as -27dBv.Wherein, the reason that infrasound signal strength is fixed
Be, user using earphone during, it will usually use volume adjusting function, if at this point, infrasonic signal strength with
Variation, then will appear the infrasound signal correlation values that detect in actual use and the sheet involved in the embodiment of the present invention
The pre-stored infrasound signal correlation values in ground are inconsistent, then system judgement can be caused error occur.Therefore, it is necessary to fix always
Infrasound signal strength.
In an embodiment of the present invention, the signal strength of infrasound signal is fixed on -27dBv, in other embodiments,
Relevant parameter etc. that can be according to earphone, goes out specific signal strength, specific derivation process will be in following reality using the derivation of equation
It applies in example and elaborates.
Step 102, according to collected second audio signal of microphone, target amplitude corresponding with infrasound signal is obtained
Value.
Specifically, in an embodiment of the present invention, microphone is integrated in earphone, for acquiring the sound in ambient enviroment
Signal.
In an embodiment of the present invention, for user during using earphone, loud speaker persistently exports the first audio signal, wheat
Gram elegance collection local environment, i.e. earphone and the second audio signal in human ear duct coupler.Mobile terminal receives Mike's elegance
Second audio signal of collection, and relevant signal processing is carried out to the second audio signal, obtain digital audio and video signals, signal processing
Process includes amplification and analog-to-digital conversion etc., and specific processing mode can refer to the technical solution in existing embodiment, and the present invention exists
This is repeated no more.
Then, mobile terminal can obtain digital audio and video signals by analyzing the digital audio and video signals got
Amplitude and frequency characteristic data, then performance data is screened, to get target amplitude corresponding with infrasound signal
Value.
Step 103, according to target amplitude value, judge whether the current wearing state of earphone is standard wearing state.
Specifically, in an embodiment of the present invention, mobile terminal can judge earphone according to the target amplitude value got
Whether current wearing state is standard wearing state.Specific deterministic process will be explained in detail in the following embodiments.
Step 104, if it is not, then extracting the target compensation numerical value group corresponding with target amplitude value being locally stored.
Specifically, in an embodiment of the present invention, if mobile terminal judges that the current wearing state of earphone is non-standard
Wearing state.Then, target compensation numerical value group corresponding with target amplitude value is locally being retrieved, and is extracting the target compensation numerical value
Group.In an embodiment of the present invention, compensation numerical value group is the serial number on a curve, specifically, when earphone is in non-standard
When wearing state, compared to standard wearing state, the frequency response curve of earphone will will appear decaying, compensate each numerical value in numerical value group
As correspond to the pad value of each Frequency point.
Step 105, according to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.
Specifically, in an embodiment of the present invention, mobile terminal can be according to the target compensation numerical value group extracted, to first
Audio signal carries out sound quality compensation.
In embodiments of the present invention, the first audio signal is exported by loud speaker, wherein carried in the first audio signal
Infrasound signal；According to collected second audio signal of microphone, target amplitude value corresponding with infrasound signal is obtained；According to
According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；If it is not, then extraction be locally stored with
Target amplitude is worth corresponding target compensation numerical value group；According to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.
So as to during user uses earphone, monitor the wearing state of current earphone, and off-gauge in wearing state
In the case of, when being compensated to current sound quality by pre-stored compensation numerical value group, and then being effectively improved earpiece couples loosening,
The negative effect of centering low frequency effectively improves the audition experience of earphone user.
Embodiment two
With reference to Fig. 2, show the flow chart of the sound quality compensation method of another embodiment of the present invention, can specifically include as
Lower step：
Step 201, collected by loud speaker according to microphone in the case where simulation earphone is in the scene of standard wearing state
The infrasound signal of output obtains master output value corresponding with infrasound signal.
Specifically, in an embodiment of the present invention, operating personnel can normally be worn earphone and standard human ear duct,
To simulate the scene that earphone is in standard wearing state.Under the scene, mobile terminal can by codec that it has,
Analog audio signal is amplified processing by the modules such as power amplifier, and to send infrasound signal to loud speaker, loud speaker connects
After receiving the signal, vibration radiation goes out infrasound signal.
In an embodiment of the present invention, 10Hz may be selected in the frequency of infrasound signal, and signal strength is fixed as -27dBv.Its
In, infrasound signal strength is fixed the reason is that, user is during using earphone, it will usually use volume adjustment work(
Can, if at this point, infrasonic signal strength changes therewith, it will appear the infrasound signal phase detected in actual use
Pass value and the pre-stored infrasound signal correlation values in local involved in the embodiment of the present invention are inconsistent, then system can be caused to sentence
It is disconnected error occur.Therefore, it is necessary to fix infrasound signal strength always.
In an embodiment of the present invention, the signal strength of infrasound signal is fixed on -27dBv, in other embodiments,
The infrasound signal of other signal strengths can be chosen.Specific derivation formula is as follows：
Δ=20lg (E1/E2)=- 12dB
U'=20lgE2
Wherein, Δ is the difference of sound pressure level, and E1 and E2 is input voltage value, and P is performance number, and R is resistance value, and U' is signal
Intensity value.
Those skilled in the art can derive the signal strength of required infrasound signal by above-mentioned formula.The present invention's
In embodiment, Selecting All Parameters are specially：Rated impedance is 32 Ω, the power of sinusoidal signal is 1mW, nominal sensitivity 102dB,
Sound pressure level is 90dB, and then the signal strength for calculating infrasound signal is -27dBv.
In an embodiment of the present invention, the microphone in earphone can acquire earphone and the infrasound in human ear duct coupler
Signal.Mobile terminal receives the infrasound signal of microphone acquisition, and carries out relevant treatment, gets corresponding digital audio letter
Number.Then, mobile terminal analyzes digital audio and video signals, obtains the corresponding amplitude of infrasound signal and frequency characteristic number
According to, then performance data is screened, with obtain with infrasound signal frequency (for 10Hz in the embodiment of the present invention) corresponding mesh
Range value is marked, and is labeled as P1.
Step 202, it according to the collected sine wave signal exported by loud speaker of microphone, obtains and sine wave signal pair
The standard frequency response curve answered.
Specifically, in an embodiment of the present invention, still in the case where earphone is in standard wearing state scene, mobile terminal driving
Loud speaker exports sine wave signal, and acquires earphone and the signal in human ear duct coupler by microphone, then to getting
Signal be pocessed and analyze, to obtain corresponding frequency and amplitude characteristic data, and draw out frequency response curve, as
Earphone is in corresponding frequency response curve K1 under standard wearing state scene.
Step 203, collected by raising one's voice according to microphone in the case where simulation earphone is in the scene of non-standard wearing state
The infrasound signal of device output, obtains correction range value corresponding with infrasound signal.
Specifically, in an embodiment of the present invention, operating personnel adjust the wearing mode of earphone and duct, with analog subscriber
Occurs the scene that coupling loosens during using earphone.Under the scene, mobile terminal exports infrasound by loud speaker
Signal, and according to the collected infrasound signal of microphone, obtain corresponding correction range value.In detail and step 201
It is similar, details are not described herein again.
Step 204, it according to the collected sine wave signal exported by loud speaker of microphone, obtains and sine wave signal pair
The correction frequency response curve answered.
Specifically, in an embodiment of the present invention, still in the case where earphone is in non-standard wearing state scene, mobile terminal drives
Dynamic loud speaker exports sine wave signal, and according to the collected signal of microphone, frequency response curve is drawn out, as at earphone
The corresponding frequency response curve under non-standard wearing state scene.Detail is similar in step 202, no longer superfluous herein
It states.
Operating personnel can be in simulation process, by the coupling aeration level of earphone and human ear duct by slightly to serious gradual
Transition, and repeat step 203 with 204, to obtain under different coupling aeration levels corresponding correction range value P2-Pn and right
The correction frequency response curve K2-Kn answered.
Step 205, establishing criteria frequency response curve obtains compensation numerical value group corresponding with correction frequency response curve.
Specifically, in an embodiment of the present invention, mobile terminal calculates separately standard frequency response K1 and each correction frequency
Rate response curve, i.e. difference between K2-Kn, you can get compensation numerical value group corresponding with each coupling aeration level scene
K2’-K3’。
Step 206, will correction range value with compensate that numerical value group is corresponding is stored in local.
Specifically, in an embodiment of the present invention, mobile terminal is by each correction range value and corresponding compensation numerical value group pair
It should be stored in local, in a preferred embodiment, local list can be established, record has correction range value in local list
With the correspondence of compensation numerical value group, i.e. correspondence between P2 and K2 ', P3 and K3 ' ... Pn and Kn '.It is mobile whole to make
It end, can be by by the range value of the audio signal currently got and multiple schools for being locally stored during subsequent use
Positive range value is matched, and is quickly positioned to current earphone and the couple state of human ear duct, and can extract rapidly
To required compensation numerical value group, the processing speed compensated sound quality is effectively improved.
Step 207, the first audio signal is exported by loud speaker, wherein infrasound letter is carried in the first audio signal
Number.
Specifically, in an embodiment of the present invention, during user uses earphone, mobile terminal can have by it
The modules such as codec, power amplifier, analog audio signal is amplified processing, and drive the speaker exports the first sound
Frequency signal.
In an embodiment of the present invention, infrasound signal is carried in the first audio signal.That is, being listened using earphone in user
During sound, the audio played in earphone further includes having infrasound signal in addition to music.Wherein, time during use
The signal strength of acoustic signals and the infrasound signal in simulation process is consistent with frequency.
Step 208, according to collected second audio signal of microphone, target amplitude corresponding with infrasound signal is obtained
Value.
Specifically, in an embodiment of the present invention, for user during using earphone, loud speaker persistently exports the first audio
Signal, microphone acquire local environment, i.e. earphone and the second audio signal in human ear duct coupler.Mobile terminal receives wheat
Second audio signal of gram elegance collection, and relevant signal processing is carried out to the second audio signal, obtain digital audio and video signals.
Then, mobile terminal can obtain digital audio and video signals by analyzing the digital audio and video signals got
Amplitude and frequency characteristic data, then performance data is screened, to get target amplitude corresponding with infrasound signal
Value.
In one embodiment of the invention, sustainable the second audio signal for receiving microphone acquisition of mobile terminal, with
The couple state of monitoring earphone and human ear duct in real time.In another embodiment, mobile terminal can be received according to predetermined period
The collected audio signal of microphone, to while monitoring earphone with human ear duct couple state, avoid mobile terminal card
The problem of pausing.
Step 209, according to target amplitude value, judge whether the current wearing state of earphone is standard wearing state.
Specifically, in an embodiment of the present invention, step 209 specifically includes：
Whether sub-step 2091, detection target amplitude value and the difference of master output value are less than threshold value.
Specifically, in an embodiment of the present invention, mobile terminal calculates the difference between target amplitude value and master output value
Value, and detect whether difference is less than threshold value.If so, 2092 are entered step, if otherwise entering step 2093.
In an embodiment of the present invention, threshold value can be the half of master output value P1 and correction range value P2 differences, i.e.,
If target amplitude value and the difference of master output value are less than threshold value, it can determine target amplitude value closer to master output value.
Sub-step 2092 determines that the current wearing state of earphone is standard wearing state.
Sub-step 2093 determines that the current wearing state of earphone is non-standard wearing state.
Step 210, the target compensation numerical value group corresponding with target amplitude value being locally stored is extracted.
Specifically, in an embodiment of the present invention, step 210 includes：
Sub-step 2101 is matched target amplitude value with the multiple correction range values being locally stored one by one.
Specifically, in an embodiment of the present invention, mobile terminal is by target amplitude value and the multiple correction width being locally stored
Angle value is matched one by one, that is, compared with carrying out target amplitude value one by one with the correction range value being locally stored, with determination
Go out which target amplitude value correct range value closer to, you can judgement and the correction range value successful match.
Sub-step 2102 extracts the corresponding rectification building-out numerical value group of correction range value of successful match.
Specifically, in an embodiment of the present invention, mobile terminal is by target amplitude value and the correction range value being locally stored
After successful match, the corresponding rectification building-out numerical value group of correction range value of successful match is extracted, the rectification building-out numerical value group, as
Target compensation numerical value group in the embodiment of the present invention.
Step 211, according to target compensation numerical value group, sound quality compensation is carried out to the first audio signal.
Specifically, in an embodiment of the present invention, mobile terminal can be according to the target compensation numerical value group extracted, to first
Audio signal carries out sound quality compensation.
By means of the technical solution of the above embodiment of the present invention, the embodiment of the present invention, can be right by sonic detection scheme
The current wearing state of earphone is accurately positioned.And when it is off-rating to detect earphone wearing state, pass through inspection
Locally in the case of pre-stored each earphone wearing state, the correspondence of amplitude and offset is rapidly obtained current rope
Required compensation numerical value group under wearing state, and current sound quality is compensated using the compensation numerical value group, so as to improve earphone
When coupling loosens, the negative effect of centering low frequency effectively improves the audition experience of earphone user.
Embodiment three
With reference to Fig. 3, the block diagram of the mobile terminal of one embodiment of the invention is shown.The mobile terminal of the embodiment of the present invention
It can realize the details of the sound quality compensation method in embodiment one to embodiment two, and reach identical effect.It is mobile whole shown in Fig. 3
End 300 includes：
Output module 301, for exporting the first audio signal by loud speaker, wherein carried in the first audio signal
Infrasound signal.
Specifically, in an embodiment of the present invention, during user uses earphone, output module 301 can pass through it
Analog audio signal is amplified processing by the modules such as the codec, the power amplifier that have, and drive the speaker output the
One audio signal.
In an embodiment of the present invention, infrasound signal is carried in the first audio signal.That is, being listened using earphone in user
During sound, the audio played in earphone further includes having infrasound signal in addition to music.In an embodiment of the present invention,
10Hz may be selected in the frequency of infrasound signal, and signal strength is fixed as -27dBv.Wherein, the reason that infrasound signal strength is fixed
Be, user using earphone during, it will usually use volume adjusting function, if at this point, infrasonic signal strength with
Variation, then will appear the infrasound signal correlation values that detect in actual use and the sheet involved in the embodiment of the present invention
The pre-stored infrasound signal correlation values in ground are inconsistent, then system judgement can be caused error occur.Therefore, it is necessary to fix always
Infrasound signal strength.
First acquisition module 302, for according to collected second audio signal of microphone, obtaining and infrasound signal pair
The target amplitude value answered.
Specifically, in an embodiment of the present invention, microphone is integrated in earphone, for acquiring the sound in ambient enviroment
Signal.
In an embodiment of the present invention, for user during using earphone, loud speaker persistently exports the first audio signal, wheat
Gram elegance collection local environment, i.e. earphone and the second audio signal in human ear duct coupler.First acquisition module 302 receives wheat
Second audio signal of gram elegance collection, and relevant signal processing is carried out to the second audio signal, digital audio and video signals are obtained, are believed
Number processing procedure includes amplification and analog-to-digital conversion etc., and specific processing mode can refer to the technical solution in existing embodiment, this
Details are not described herein for invention.
Then, the first acquisition module 302 can obtain digital audio by analyzing the digital audio and video signals got
The amplitude and frequency characteristic data of signal, then performance data is screened, to get mesh corresponding with infrasound signal
Mark range value.
Judgment module 303, for according to target amplitude value, judging whether the current wearing state of earphone is that standard wears shape
State.
Specifically, in an embodiment of the present invention, judgment module 303 can judge ear according to the target amplitude value got
Whether the current wearing state of machine is standard wearing state.
Extraction module 304, if being judged as NO for judgment module, extraction is locally stored corresponding with target amplitude value
Target compensation numerical value group.
Specifically, in an embodiment of the present invention, if mobile terminal judges that the current wearing state of earphone is non-standard
Wearing state.Then, extraction module 304 is locally retrieving target compensation numerical value group corresponding with target amplitude value, and extracts the mesh
Mark compensation numerical value group.In an embodiment of the present invention, compensation numerical value group is the serial number on a curve, specifically, working as earphone
When in non-standard wearing state, compared to standard wearing state, the frequency response curve of earphone will will appear decaying, compensate numerical value group
In each numerical value be corresponding to each Frequency point pad value.
Compensating module 305, for according to target compensation numerical value group, sound quality compensation to be carried out to the first audio signal.
Specifically, in an embodiment of the present invention, compensating module 305 can be right according to the target compensation numerical value group extracted
First audio signal carries out sound quality compensation.
In a preferred embodiment of the invention, the first acquisition module 302 can also be further used in simulation ear
Machine is under the scene of standard wearing state, according to microphone it is collected by loud speaker export infrasound signal, obtain with
The corresponding master output value of infrasound signal.
With reference to Fig. 4, correspondingly, on the basis of Fig. 3, mobile terminal further includes：
Second acquisition module 306, for according to microphone it is collected by loud speaker export sine wave signal, obtain with
The corresponding standard frequency response curve of sine wave signal.
And first acquisition module 302 can also be further used for being in the field of non-standard wearing state in simulation earphone
Under scape, according to the collected infrasound signal exported by loud speaker of microphone, correction width corresponding with infrasound signal is obtained
Angle value.
Correspondingly, the second acquisition module 306 can also be further used for being exported by loud speaker according to microphone is collected
Sine wave signal, obtain corresponding with sine wave signal correction frequency response curve.
Referring now still to Fig. 4, mobile terminal further includes：
Third obtains mould 307, is used for establishing criteria frequency response curve, obtains benefit corresponding with correction frequency response curve
Repay numerical value group.
Logging modle 308, for that will correct range value, numerical value group will be corresponding is stored in local with compensation.
With reference to Fig. 5, in a preferred embodiment of the invention, on the basis of Fig. 3, judgment module 303 includes：
Detection sub-module 3031, for detecting whether target amplitude value and the error of master output value are less than threshold value.
Determination sub-module 3032 is if being detected as detection sub-module, it is determined that the current wearing state of earphone is mark
Quasi- wearing state.
If determination sub-module 3032 be further used for detection sub-module be detected as it is no, it is determined that the current wearing state of earphone
For non-standard wearing state.
With reference to Fig. 6, in a preferred embodiment of the invention, on the basis of Fig. 3, extraction module 304 includes：
Matched sub-block 3041, for carrying out one by one target amplitude value and multiple correction range values for being locally stored
Match.
Extracting sub-module 3042, the corresponding rectification building-out numerical value group of correction range value for extracting successful match.
With reference to Fig. 7, in a preferred embodiment of the invention, on the basis of Fig. 3, mobile terminal 300 further includes：
Receiving module 309, for receiving the collected audio signal of microphone according to predetermined period.
Mobile terminal 300 provided in an embodiment of the present invention can realize that mobile terminal is real in the embodiment of the method for Fig. 1 to Fig. 2
Existing each process, to avoid repeating, which is not described herein again.
Mobile terminal 300 exports the first audio signal by above-mentioned module, by loud speaker, wherein the first audio signal
In carry infrasound signal；According to collected second audio signal of microphone, target corresponding with infrasound signal is obtained
Range value；According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；If it is not, then extracting this
The target compensation numerical value group corresponding with target amplitude value of ground storage；According to target compensation numerical value group, to the first audio signal into
Row sound quality compensates.So as to during user uses earphone, monitor the wearing state of current earphone, and wearing shape
In the case of state is off-gauge, current sound quality is compensated by pre-stored compensation numerical value group, and then be effectively improved earphone
When coupling loosens, the negative effect of centering low frequency effectively improves the audition experience of earphone user.
Example IV
A kind of hardware architecture diagram of Fig. 8 mobile terminals of each embodiment to realize the present invention,
The mobile terminal 800 includes but not limited to：It is radio frequency unit 801, network module 802, audio output unit 803, defeated
Enter unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, processor
The components such as 810 and power supply 811.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 8 is not constituted
Restriction to mobile terminal, mobile terminal may include than illustrating more or fewer components, either combine certain components or
Different component arrangements.In embodiments of the present invention, mobile terminal include but not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, radio frequency unit 801, for exporting the first audio signal by loud speaker, wherein taken in the first audio signal
With infrasound signal；According to collected second audio signal of microphone, target amplitude corresponding with infrasound signal is obtained
Value；According to target amplitude value, judge whether the current wearing state of earphone is standard wearing state；If it is not, then extracting local deposit
The target compensation numerical value group corresponding with target amplitude value of storage；According to target compensation numerical value group, sound is carried out to the first audio signal
Matter compensates.
So as to during user uses earphone, monitor the wearing state of current earphone, and in wearing state
In the case of off-gauge, current sound quality is compensated by pre-stored compensation numerical value group, and then be effectively improved earphone coupling
When closing loosening, the negative effect of centering low frequency effectively improves the audition experience of earphone user.
It should be understood that the embodiment of the present invention in, radio frequency unit 801 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 810 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 801 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 801 can also by radio communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by network module 802 and has accessed, and such as user is helped to receive
Send e-mails, browse webpage and access streaming video etc..
It is that audio output unit 803 can receive radio frequency unit 801 or network module 802 or in memory 809
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 803 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 800 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 803 includes loud speaker, buzzer and receiver etc..
Input unit 804 is for receiving audio or video signal.Input unit 804 may include graphics processor
(Graphics Processing Unit, GPU) 8041 and microphone 8042, graphics processor 8041 is in video acquisition mode
Or the image data of the static images or video obtained by image capture apparatus (such as camera) in image capture mode carries out
Reason.Treated, and picture frame may be displayed on display unit 806.Through graphics processor 8041, treated that picture frame can be deposited
Storage is sent in memory 809 (or other storage mediums) or via radio frequency unit 801 or network module 802.Mike
Wind 8042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output of mobile communication base station can be sent to via radio frequency unit 801 by being converted in the case of telephone calling model.
Mobile terminal 800 further includes at least one sensor 805, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 8061, and proximity sensor can close when mobile terminal 800 is moved in one's ear
Display panel 8061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 805 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 806 is for showing information input by user or being supplied to the information of user.Display unit 806 can wrap
Display panel 8061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 8061.
User input unit 807 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family is arranged and the related key signals input of function control.Specifically, user input unit 807 include touch panel 8071 and
Other input equipments 8072.Touch panel 8071, also referred to as touch screen can acquire user on it or neighbouring touch operation
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 8071 or in touch panel 8071
Neighbouring operation).Touch panel 8071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 810, receiving area
It manages the order that device 810 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel 8071.In addition to touch panel 8071, user input unit 807 can also include other input equipments
8072.Specifically, other input equipments 8072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating lever, details are not described herein.
Further, touch panel 8071 can be covered on display panel 8061, when touch panel 8071 is detected at it
On or near touch operation after, send processor 810 to determine the type of touch event, be followed by subsequent processing device 810 according to touch
The type for touching event provides corresponding visual output on display panel 8061.Although in fig. 8, touch panel 8071 and display
Panel 8061 is to realize the function that outputs and inputs of mobile terminal as two independent components, but in some embodiments
In, can be integrated by touch panel 8071 and display panel 8061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 808 is the interface that external device (ED) is connect with mobile terminal 800.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 808 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in mobile terminal 800 or can be used in 800 He of mobile terminal
Transmission data between external device (ED).
Memory 809 can be used for storing software program and various data.Memory 809 can include mainly storing program area
And storage data field, wherein storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 809 may include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 810 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 809, and calls and is stored in storage
Data in device 809 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Reason device 810 may include one or more processing units；Preferably, processor 810 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 810.
Mobile terminal 800 can also include the power supply 811 (such as battery) powered to all parts, it is preferred that power supply 811
Can be logically contiguous by power-supply management system and processor 810, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 800 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 810, and memory 809 is stored in
On memory 809 and the computer program that can be run on the processor 810, the computer program are executed by processor 810
Each process of the above-mentioned sound quality compensation method embodiments of Shi Shixian, and identical technique effect can be reached, to avoid repeating, here
It repeats no more.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned sound quality compensation method embodiment, and energy when being executed by processor
Reach identical technique effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic disc or CD etc..
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within the protection of the present invention.
Claims (11)
1. a kind of sound quality compensation method is applied to mobile terminal, which is characterized in that the method includes：
The first audio signal is exported by loud speaker, wherein carries infrasound signal in first audio signal；
According to collected second audio signal of microphone, target amplitude value corresponding with the infrasound signal is obtained；
According to the target amplitude value, judge whether the current wearing state of earphone is standard wearing state；
If it is not, then extracting the target compensation numerical value group corresponding with the target amplitude value being locally stored；
According to the target compensation numerical value group, sound quality compensation is carried out to first audio signal.
2. according to the method described in claim 1, it is characterized in that, described the step of exporting the first audio signal by loud speaker
Before, further include：
In the case where simulation earphone is in the scene of standard wearing state, exported by the loud speaker according to the microphone is collected
The infrasound signal, obtain corresponding with infrasound signal master output value；
And it according to the collected sine wave signal exported by the loud speaker of the microphone, obtains and the sine wave
The corresponding standard frequency response curve of signal；
It is collected defeated by the loud speaker according to the microphone in the case where simulation earphone is in the scene of non-standard wearing state
The infrasound signal gone out obtains correction range value corresponding with the infrasound signal；
And according to the collected sine wave signal exported by the loud speaker of the microphone, obtain with it is described just
The corresponding correction frequency response curve of string wave signal；
According to the standard frequency response curve, compensation numerical value group corresponding with the correction frequency response curve is obtained；
Local is stored in by the correction range value is corresponding with the compensation numerical value group.
3. according to the method described in claim 2, it is characterized in that, described according to the target amplitude value, working as earphone is judged
The step of whether preceding wearing state is standard wearing state, specifically includes：
Whether the difference for detecting the target amplitude value and the master output value is less than threshold value；
If the difference of the target amplitude value and the master output value is less than threshold value, it is determined that the current wearing state of earphone is
Standard wearing state；
If the difference of the target amplitude value and the master output value is greater than or equal to threshold value, it is determined that the current wearing of earphone
State is non-standard wearing state.
4. according to the method described in claim 2, it is characterized in that, the extraction is being locally stored with the target amplitude value pair
It the step of target compensation numerical value group answered, specifically includes：
The target amplitude value is matched one by one with the multiple correction range values being locally stored；
Extract the corresponding rectification building-out numerical value group of correction range value of successful match.
5. according to the method described in claim 1, it is characterized in that, described according to collected second audio signal of microphone,
Before the step of obtaining target amplitude value corresponding with the infrasound signal, further include：
The collected audio signal of microphone is received according to predetermined period.
6. a kind of mobile terminal, which is characterized in that the mobile terminal includes：
Output module, for exporting the first audio signal by loud speaker, wherein carry infrasonic sound in first audio signal
Wave signal；
First acquisition module, for according to collected second audio signal of microphone, obtaining corresponding with the infrasound signal
Target amplitude value；
Judgment module, for according to the target amplitude value, judging whether the current wearing state of earphone is standard wearing state；
Extraction module, if being judged as NO for the judgment module, extraction is locally stored corresponding with the target amplitude value
Target compensation numerical value group；
Compensating module, for according to the target compensation numerical value group, sound quality compensation to be carried out to first audio signal.
7. mobile terminal according to claim 6, which is characterized in that
First acquisition module is further used in the case where simulation earphone is in the scene of standard wearing state, according to the Mike
The collected infrasound signal exported by the loud speaker of wind obtains master output corresponding with the infrasound signal
Value；
Correspondingly, the mobile terminal further includes：
Second acquisition module, for according to the collected sine wave signal exported by the loud speaker of the microphone, obtaining
Standard frequency response curve corresponding with the sine wave signal；
First acquisition module is further used in the case where simulation earphone is in the scene of non-standard wearing state, according to the wheat
Gram collected infrasound signal exported by the loud speaker of wind obtains correction width corresponding with the infrasound signal
Angle value；
Correspondingly, second acquisition module is further used for being exported by the loud speaker according to the microphone is collected
The sine wave signal obtains correction frequency response curve corresponding with the sine wave signal；
The mobile terminal further includes：
Third acquisition module, for according to the standard frequency response curve, obtaining corresponding with the correction frequency response curve
Compensation numerical value group；
Logging modle, for being stored in local by the correction range value is corresponding with the compensation numerical value group.
8. mobile terminal according to claim 7, which is characterized in that the judgment module includes：
Whether detection sub-module, the difference for detecting the target amplitude value and the master output value are less than threshold value；
Determination sub-module is if being detected as the detection sub-module, it is determined that the current wearing state of earphone is that standard is worn
Wear state；
If the determination sub-module be further used for the detection sub-module be detected as it is no, it is determined that the current wearing state of earphone
For non-standard wearing state.
9. mobile terminal according to claim 7, which is characterized in that the extraction module includes：
Matched sub-block, for being matched the target amplitude value one by one with the multiple correction range values being locally stored；
Extracting sub-module, the corresponding rectification building-out numerical value group of correction range value for extracting successful match.
10. mobile terminal according to claim 6, which is characterized in that the mobile terminal further includes：
Receiving module, for receiving the collected audio signal of microphone according to predetermined period.
11. a kind of mobile terminal, which is characterized in that including：It memory, processor and is stored on the memory and can be in institute
The earphone sound quality compensation program run on processor is stated, is realized such as when the earphone sound quality compensation program is executed by the processor
The step of earphone sound quality compensation method described in any one of claim 1 to 5.
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| CN201810404912.3A CN108551631A (en) | 2018-04-28 | 2018-04-28 | A kind of sound quality compensation method and mobile terminal |
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| CN109246513A (en) * | 2018-09-30 | 2019-01-18 | 歌尔科技有限公司 | A kind of active noise reduction earphone and its noise-reduction method, device |
| CN110278509A (en) * | 2019-07-26 | 2019-09-24 | 歌尔股份有限公司 | A kind of wireless headset control method, device and wireless headset and storage medium |
| CN111818439A (en) * | 2020-07-20 | 2020-10-23 | 恒玄科技(上海)股份有限公司 | Earphone control method, earphone control device and storage medium |
| CN111988692A (en) * | 2020-08-07 | 2020-11-24 | 歌尔科技有限公司 | Earphone wearing state detection method and device, earphone and storage medium |
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| CN113099336A (en) * | 2020-01-08 | 2021-07-09 | 北京小米移动软件有限公司 | Method and device for adjusting audio parameters of earphone, earphone and storage medium |
| CN111818439A (en) * | 2020-07-20 | 2020-10-23 | 恒玄科技(上海)股份有限公司 | Earphone control method, earphone control device and storage medium |
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| CN111988692A (en) * | 2020-08-07 | 2020-11-24 | 歌尔科技有限公司 | Earphone wearing state detection method and device, earphone and storage medium |
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| CN112437375A (en) * | 2020-11-06 | 2021-03-02 | 维沃移动通信有限公司 | Earphone and earphone sound effect adjusting method |
| WO2022143268A1 (en) * | 2020-12-30 | 2022-07-07 | 华为技术有限公司 | Position recognition method and earphone device |
| CN113038329A (en) * | 2021-03-22 | 2021-06-25 | 深圳市科奈信科技有限公司 | Earphone radio control method, device and storage medium |
| CN113596661A (en) * | 2021-07-28 | 2021-11-02 | 维沃移动通信有限公司 | Earphone, feedback noise reduction method and device |
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| CN113794965A (en) * | 2021-10-28 | 2021-12-14 | 歌尔科技有限公司 | Earphone frequency response calibration method and device, earphone equipment and storage medium |
| CN113794965B (en) * | 2021-10-28 | 2022-11-01 | 歌尔科技有限公司 | Earphone frequency response calibration method and device, earphone equipment and storage medium |
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