CN107071680A - A kind of tuning method and apparatus of acoustic product - Google Patents
A kind of tuning method and apparatus of acoustic product Download PDFInfo
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- CN107071680A CN107071680A CN201710258360.5A CN201710258360A CN107071680A CN 107071680 A CN107071680 A CN 107071680A CN 201710258360 A CN201710258360 A CN 201710258360A CN 107071680 A CN107071680 A CN 107071680A
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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
- H04R29/00—Monitoring arrangements; Testing arrangements
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Abstract
The invention discloses a kind of tuning method and apparatus of acoustic product.This method includes：Using the physical model of an initial excitation signal testing acoustic product, initial frequency response curve is obtained；According to initial frequency response curve, the gain parameter of initial excitation signal is obtained；EQ balanced devices are called, initial excitation signal is adjusted according to gain parameter, a new pumping signal is obtained；The physical model of acoustic product is tested using new pumping signal, new frequency response curve is obtained.Judge whether the difference of new frequency response curve and standard frequency response curve is less than predetermined threshold value；If being judged as NO, repeated the above steps using new frequency response curve and new pumping signal, until being judged as YES, preserve the gain parameter finally obtained；After the software design patterns of the Digital Signal Processing dsp chip in acoustic product are finished, the gain parameter of preservation is write in the dsp chip in acoustic product.The process of tuning is placed on early stage by the present invention, improves debugging efficiency, saves the time, and debugging process is simple.
Description
Technical field
The present invention relates to technical field of acoustics, the tuning method and apparatus of more particularly to a kind of acoustic product.
Background technology
With developing rapidly for science and technology, people increasingly increase the demand of various electronic equipments, while to its quality requirements
Also the acoustics experience of more and more higher, particularly high-quality turns into a very important side in the daily acoustic product of people's evaluation
Face, for example, the outer of various bluetooth earphones, wired earphone, Mobile phone horn puts module and VR popular in recent years wears and set
It is standby, its high-quality, in a balanced way acoustic efficiency can directly affect the usage experience of user.
Due to the limitation of acoustic product volume itself and outward appearance, the acoustical behavior of above-mentioned acoustic product always has various lack
Fall into, for example, the outer of Mobile phone horn puts module, because volumetric constraint can only use the horn single body of very little, cause the low frequency performance of product
It is unsatisfactory.Under normal circumstances, the sound letter that can be externally put by Digital Signal Processing DSP and EQ balanced device in horn single body
Number pre-process, the deficiency of acoustical behavior can be made up to a certain extent.But in the use process of DSP and EQ balanced devices
In, to avoid the gain in a certain frequency range too high or too low, cause the phenomenon that product distortion is uprised, it is necessary to test checking EQ repeatedly
The effect that balanced device is used in combination with acoustic product, that is, carry out tuning processing, adds suitable balance parameters.
In the prior art, it is usually in the later stage of acoustic product research and development, after DSP and software of product etc. are ready
Tuning is carried out, specific method is：After the upper dsp chip of acoustic product connection, the frequency of DSP or EQ before processings is not being done according to product
Rate response curve, the gain of a certain frequency range is adjusted by DSP or EQ balanced devices, come make up it is too high in frequency response curve or
The frequency range of height, then writes the gain parameter of compensation the dsp chip of product, then the product after being handled frequency response
The test of curve, distortion curve.By adjusting the yield value in product frequency response curve repeatedly, then it is repeatedly detected product adjustment
Frequency response, distortion curve after gain, make the constantly close defined standard frequency response curve of frequency response curve of product, together
When avoid problem of dtmf distortion DTMF again.But, there are some shortcomings in this tuning method：The tuning process of product can only be after research and development of products
It could be debugged after the software of phase, i.e. DSP and product are ready, often result in and be pressed for time, task is heavy, not only to expend people
Power, and cause the frequency response curve that further optimizes product without the time, finally influence Consumer's Experience；Second, the gain adjusted
Often by virtue of experience parameter is, it is necessary to which suitable yield value and frequency can just be found by adjusting repeatedly, and influence debugging efficiency is consumed
Time；And, need to ensure that product and DSP have good connection when debugging, often due to midway connectivity problem, causes to adjust
The EQ parameter values of section are not correctly written in, and debugging process goes wrong, and are increased the degree of difficulty of debugging, can also be influenceed debugging efficiency,
Elapsed time.
The content of the invention
Carried out in view of tuning method is main in the prior art in the research and development of products later stage, it is impossible to the further frequency response of optimization product
Curve, influences Consumer's Experience, takes time and effort simultaneously, the problem of tuning is less efficient, it is proposed that a kind of acoustic product of the invention
Tuning method and apparatus, to solve or to solve the above problems at least in part.
According to an aspect of the invention, there is provided a kind of tuning method of acoustic product, methods described includes：
Step one, using the physical model of acoustic product described in an initial excitation signal testing, initial frequency response curve is obtained；
Step 2, according to the difference of the initial frequency response curve and standard frequency response curve, obtains the initial excitation signal
Gain parameter；The gain parameter includes needing the Frequency point of adjustment and gain corresponding with the Frequency point for needing to adjust
Value；
Step 3, imports the initial excitation signal, and call the acoustical frequency spectrum point in acoustical frequency spectrum analysis software
The EQ balanced devices in software are analysed, the initial excitation signal is adjusted according to the gain parameter, a new pumping signal is obtained；
Step 4, the physical model of the acoustic product is tested using the new pumping signal, new frequency response is obtained bent
Line；
Step 5, judges whether the difference of the new frequency response curve and the standard frequency response curve is less than predetermined threshold value；
If being judged as NO, using the new frequency response curve and the new pumping signal repeat step two to step 4, until sentencing
It is yes to break, and preserves the gain parameter finally obtained；
Step 6, after the software design patterns of the Digital Signal Processing dsp chip in the acoustic product are finished, by preservation
The gain parameter is write in the dsp chip in the acoustic product.
There is provided a kind of tuning device of acoustic product according to another aspect of the present invention, it is characterised in that the dress
Put including：
Frequency response curve acquiring unit, for the physical model using acoustic product described in an initial excitation signal testing, is obtained
Obtain initial frequency response curve；
Gain parameter acquiring unit, for the difference according to the initial frequency response curve and standard frequency response curve, obtains institute
State the gain parameter of initial excitation signal；The gain parameter includes needing the Frequency point adjusted and the frequency adjusted with the needs
The corresponding yield value of rate point；
EQ balanced units, for being imported in acoustical frequency spectrum analysis software after the initial excitation signal, and are called described
EQ balanced devices in acoustical frequency spectrum analysis software, the initial excitation signal is adjusted according to the gain parameter, obtains one new
Pumping signal；
The frequency response curve acquiring unit, is also used for the entity that the new pumping signal tests the acoustic product
Model, obtains new frequency response curve；
Judging unit, for judging it is default whether the difference of the new frequency response curve and the standard frequency response curve is less than
Threshold value；If being judged as NO, the gain parameter is repeated using the new frequency response curve and the new pumping signal
The function of acquiring unit, the EQ balanced units and the frequency response curve acquiring unit, until being judged as YES；
Gain parameter storage unit, for preserving the gain parameter that the gain parameter acquiring unit is finally obtained；
Gain parameter writing unit, the software design patterns for treating the Digital Signal Processing dsp chip in the acoustic product
After finishing, the DSP cores that the gain parameter that the gain parameter storage unit is preserved is write in the acoustic product
In piece.
In summary, the present invention is the early stage researched and developed in acoustic product after the completion of the physical model of acoustic product, is made
The physical model of acoustic product is tested with a pumping signal, frequency response curve is obtained, and by judging the physical model of acoustic product
Frequency response curve and standard frequency response curve difference, constantly adjust pumping signal using the EQ balanced devices in spectroscopy software,
Finally cause the frequency response curve of the physical model of acoustic product to meet the requirement of standard frequency response curve, obtain the DSP of acoustic product
With the gain parameter of software, i.e., the acoustical behavior of the physical model of acoustic product, this process are reversely verified by pumping signal
In do not need product to be connected or communicate with DSP, the problem of unstable or communication disruption of connection is not had so that tuning process is simple
It is single convenient, debugging efficiency can be effectively improved, the time is saved；After the software design patterns of acoustic product dsp chip are finished, by acquisition
In dsp chip in gain parameter write-in acoustic product, also more times can be provided for further optimization frequency response curve.Can
See, the technical scheme is that the process of tuning is placed on into early stage, while reaching tuning, alleviate after acoustic product research and development
The pressure of phase tuning, later stage DSP and software it is ready after, setting that can also be as needed to EQ further optimizes, improve adjust
Efficiency is tried, the time is saved；Meanwhile, early stage tuning need not communicate or be connected with DSP, but utilize in conventional acoustic analysis software
EQ balanced devices adjust input signal, it is to avoid connection is unstable etc. the problem of bring, and makes debugging process simple and convenient.
Brief description of the drawings
A kind of schematic flow sheet of the tuning method for acoustic product that Fig. 1 provides for one embodiment of the invention；
A kind of schematic flow sheet of the tuning method for acoustic product that Fig. 2 provides for another embodiment of the present invention；
A kind of structural representation of the tuning device for acoustic product that Fig. 3 provides for one embodiment of the invention；
A kind of structural representation of the tuning device for acoustic product that Fig. 4 provides for another embodiment of the present invention.
Embodiment
The present invention mentality of designing be：The tuning process of acoustic product is placed on to the research and development early stage of acoustic product, i.e. acoustics
After the completion of the physical model of product, the physical model of acoustic product is tested using a pumping signal, frequency response curve is obtained, and pass through
Judge the frequency response curve of the physical model of acoustic product and the difference of standard frequency response curve, it is equal using the EQ in spectroscopy software
Weighing apparatus constantly adjusts pumping signal, reversely the acoustical behavior of the physical model of checking acoustic product, and it is bent that acquisition meets standard frequency response
The gain parameter of the requirement of line；After the software design patterns of acoustic product dsp chip are finished, the gain parameter of acquisition is write into acoustics
In dsp chip in product, alleviate acoustic product research and develop later stage tuning pressure, later stage DSP and software it is ready after, may be used also
Further optimized with the setting as needed to EQ, improve debugging efficiency, save the time.To make the purpose of the present invention, technical side
Case and advantage are clearer, and below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
A kind of schematic flow sheet of the tuning method for acoustic product that Fig. 1 provides for one embodiment of the invention.Such as Fig. 1 institutes
Show, this method includes：
Step 110, using the physical model of an initial excitation signal testing acoustic product, initial frequency response curve is obtained.
Under normal circumstances, in the acoustical testing for carrying out acoustic product, white noise or pink noise conduct can be used
Pumping signal is tested.In this step, initial excitation signal can also use white noise or pink noise.For example, 20-
20KHz pink noise.
Step 120, according to the difference of initial frequency response curve and standard frequency response curve, the gain ginseng of initial excitation signal is obtained
Number；Here gain parameter includes the Frequency point and yield value corresponding with the Frequency point for needing to adjust for needing to adjust.
Step 130, initial excitation signal is imported in acoustical frequency spectrum analysis software, and is called in acoustical frequency spectrum analysis software
EQ balanced devices, according to gain parameter adjust initial excitation signal, obtain a new pumping signal.
Because the implementation process of the present embodiment is carried out in the physical model of acoustic product, i.e. the research and development in acoustic product
Early stage, the DSP of acoustic product software is also configured without completing, so the tune of the physical model in order to carry out the acoustic product
Sound, it is impossible to directly adjust the frequency response curve of the physical model of acoustic product.So, produced using an initial excitation signal testing acoustics
The physical model of product, obtains the initial frequency response curve of the physical model of the acoustic product, utilizes initial frequency response curve and standard frequency
The difference of curve is rung, the gain parameter of initial excitation signal is obtained, then by calling the EQ in acoustical frequency spectrum analysis software equal
Weighing apparatus adjustment initial excitation signal.In short, it is exactly adjustment by pumping signal, the reverse physical model of checking acoustic product
Acoustical behavior.
Step 140, the physical model of acoustic product is tested using new pumping signal, new frequency response curve is obtained.
Step 150, judge whether the difference of new frequency response curve and standard frequency response curve is less than predetermined threshold value；If being judged as
It is no, then using new frequency response curve and new pumping signal repeat step 120 to step 140, until being judged as YES, preserve last
The gain parameter of acquisition.
The difference of new frequency response curve and standard frequency response curve can be carried out with the DB differences of each Frequency point in this step
Represent.For example, frequency response value of the new frequency response curve in 1.5KHz is 50.2DB, and frequency of the standard frequency response curve in 1.5KHz
It is 50DB to ring value, then new frequency response curve is exactly 0.2DB in 1.5KHz difference with standard frequency response curve.
, it is necessary to according to frequency response curve and standard during the reversely acoustical behavior of the physical model of checking acoustic product
The adjustment that the difference of frequency response curve constantly carries out pumping signal is tested, that is, constantly according to initial frequency response curve and mark
The difference of quasi- frequency response curve, obtains the gain parameter of initial excitation signal；The reality of acoustic product is tested using new pumping signal
Body Model, obtains new frequency response curve；Judge whether the difference of new frequency response curve and standard frequency response curve is less than predetermined threshold value；
Until the frequency response curve of the physical model of acoustic product and the difference of standard frequency response curve are less than predetermined threshold value, then finally obtain
Adjust the gain parameter of pumping signal and meet desired gain parameter for the acoustic product.
Step 160, after the software design patterns of the Digital Signal Processing dsp chip in acoustic product are finished, by the increasing of preservation
In dsp chip in beneficial parameter read-in acoustic product.
It can be seen that, the technical scheme is that the process of tuning is placed on into early stage, while reaching tuning, alleviate acoustics
The pressure of research and development of products later stage tuning, later stage DSP and software it is ready after, can also be further excellent to EQ setting as needed
Change, improve debugging efficiency, save the time；Meanwhile, early stage tuning need not communicate or be connected with DSP, but utilize conventional acoustic
EQ balanced devices in analysis software adjust input signal, it is to avoid connection is unstable etc. the problem of bring, and makes to debug
Journey is simple and convenient.
In one embodiment of the invention, in step S120 the initial frequency response curve of basis and the difference of standard frequency response curve
It is different, obtain and specify the gain parameter of initial excitation signal to include：Distortion is obtained according to initial frequency response curve and initial excitation signal
Curve；According to the difference and distortion curve of initial frequency response curve and standard frequency response curve, the gain of initial excitation signal is obtained
Parameter.
In order to ensure that acoustic product does not have problem of dtmf distortion DTMF, need to take into account the reality of acoustic product when gain parameter is obtained
The situation of the distortion curve of body Model, with reference to the difference and distortion curve of initial frequency response curve and standard frequency response curve, to obtain
Take the gain parameter of initial excitation signal.
Tuning method of the prior art is more focused on acoustical behavior index (e.g., the frequency obtained by product objective examination
Response, distortion curve), the judgement of the subjective audition of people is not bound with, often product has arrived Consumer's Experience test phase, in addition it is also necessary to
Tuning test is repeated, further increases debug time.So, in one embodiment of the invention, shown in Fig. 1
Method and step 160 after, the method shown in Fig. 1 further comprises：Subjective music is tested by acoustical frequency spectrum analysis software
Signal is imported in acoustic product, so that the dsp chip in acoustic product handles subjective music test signal according to gain parameter, and
Pass through the subjective music test signal after acoustic product playback process；According to the assessment result of tuning personnel, optimize in dsp chip
Gain parameter optimized after gain parameter and preservation；Assessment result includes：Need the Frequency point of optimization and excellent with needs
The corresponding yield value of Frequency point of change.
In the present embodiment, the software design patterns of the Digital Signal Processing dsp chip of acoustic product are finished.In order to ensure the sound
The frequency response curve for learning product is more excellent, and more meets the demand of user, and the present embodiment is carried out by the subjective evaluation of tuning personnel
The optimization of gain parameter, to obtain more excellent frequency response curve.Subjective music test signal can make voice or music
(for example, California hotel, ferry, one I love etc.).
Because the technical scheme is that the process of tuning is placed on into early stage, alleviating acoustic product research and development later stage tuning
Pressure, later stage DSP and software it is ready after, setting that can also be as needed to EQ is further finely tuned, so, above-mentioned
According to the assessment result of tuning personnel, optimize the gain parameter in dsp chip, the gain parameter after being optimized simultaneously preserves it
Afterwards, this method also includes：
After the software design patterns of the Digital Signal Processing dsp chip of acoustic product are finished and subjective evaluation terminates, using first
Beginning pumping signal tests acoustic product, obtains product frequency response curve；According to product frequency response curve, optimize the DSP in acoustic product
The gain parameter of chip, the gain parameter to the dsp chip in acoustic product is finely adjusted, and obtains more preferable frequency response bent
Line.
In one embodiment of the invention, the initial excitation signal in method shown in Fig. 1 is that the pink of 20-20KHz is made an uproar
Sound.
20-20KHz pink noise is full frequency band, and dividend noise is adjusted, and equivalent to the tuning of full frequency band, is not limited
In a certain section of frequency range of the prior art, the frequency range of tuning covering is wider.
A kind of schematic flow sheet of the tuning method for acoustic product that Fig. 2 provides for another embodiment of the present invention.This reality
Tuning method of the example there is provided a specific acoustic product is applied, the physical model of acoustic product is mock-up in the method
Sample, method and step is as follows：
Step S210, the powder using 20-20kHz is made an uproar as initial excitation signal, tests the frequency response of mock-up samples
Curve.
Step S220, according to the frequency response curve tested, analyzes the gain frequency and yield value being adjusted.
Step S230, imports initial excitation signal, and call acoustical frequency spectrum analysis software in acoustical frequency spectrum analysis software
In EQ balanced devices, pumping signal is adjusted according to the gain frequency and yield value that are obtained in step S220, new excitation letter is obtained
Number, the frequency response curve of mock-up samples is tested using new pumping signal.
Step S240, judges whether the frequency response curve is near the mark frequency response curve.If being judged as NO, continue executing with
Step S220；If being judged as YES, step S250 is performed.
Step S250, after the software design patterns of the Digital Signal Processing dsp chip in acoustic product are finished, by the increasing of preservation
In dsp chip in beneficial parameter read-in acoustic product.
Step S260, is imported subjective music test signal in acoustic product by acoustical frequency spectrum analysis software, so as to sound
Learn dsp chip in product and subjective music test signal handled according to gain parameter, and by acoustic product playback process after
Subjective music test signal.
Step S270, according to the assessment result of tuning personnel, optimizes the increasing after the gain parameter in dsp chip is optimized
Beneficial parameter is simultaneously preserved；
Step S280, using initial excitation signal testing acoustic product, obtains product frequency response curve；It is bent according to product frequency response
The gain parameter of dsp chip in line, fine setting acoustic product and preservation.
Step S290, terminates tuning.
A kind of structural representation of the tuning device for acoustic product that Fig. 3 provides for one embodiment of the invention.Such as Fig. 3 institutes
Show, the tuning device 300 of the acoustic product includes：
Frequency response curve acquiring unit 310, for the physical model using an initial excitation signal testing acoustic product, is obtained
Initial frequency response curve；
Gain parameter acquiring unit 320, for the difference according to initial frequency response curve and standard frequency response curve, obtains initial
The gain parameter of pumping signal；Gain parameter includes needing the Frequency point of adjustment and gain corresponding with the Frequency point for needing to adjust
Value；
EQ balanced units 330, for being imported in acoustical frequency spectrum analysis software after initial excitation signal, and call acoustics frequency
EQ balanced devices in software for analyzing spectrum, adjust initial excitation signal according to gain parameter, obtain a new pumping signal；
Frequency response curve acquiring unit 310, is also used for the physical model that new pumping signal tests acoustic product, obtains
New frequency response curve；
Judging unit 340, for judging whether the difference of new frequency response curve and standard frequency response curve is less than predetermined threshold value；
If being judged as NO, gain parameter acquiring unit 320, EQ are repeated using new frequency response curve and new pumping signal balanced
The function of unit 330 and frequency response curve acquiring unit 310, until being judged as YES；
Gain parameter storage unit 350, for preserving the gain parameter that gain parameter acquiring unit is finally obtained；
Gain parameter writing unit 360, for treating that the software design patterns of the Digital Signal Processing dsp chip in acoustic product are complete
Bi Hou, the gain parameter that gain parameter storage unit is preserved is write in the dsp chip in acoustic product.
In one embodiment of the invention, gain parameter acquiring unit 320, specifically for according to initial frequency response curve and
Initial excitation signal obtains distortion curve；According to the difference and distortion curve of initial frequency response curve and standard frequency response curve, obtain
Obtain the gain parameter of initial excitation signal.
A kind of structural representation of the tuning device for acoustic product that Fig. 4 provides for another embodiment of the present invention.Such as Fig. 4
Shown, the tuning device 400 of the acoustic product includes：Frequency response curve acquiring unit 410, gain parameter acquiring unit 420, EQ are equal
Weigh unit 430, judging unit 440, gain parameter storage unit 450, gain parameter writing unit 460, subjective music list
Member 470, gain parameter optimization unit 480.Wherein, frequency response curve acquiring unit 410, gain parameter acquiring unit 420, EQ are balanced
Unit 430, judging unit 440, gain parameter storage unit 450, gain parameter writing unit 460 and the frequency response song shown in Fig. 3
Line acquiring unit 310, gain parameter acquiring unit 320, EQ balanced units 330, judging unit 340, gain parameter storage unit
350th, gain parameter writing unit 360 has correspondence identical function, and identical part will not be repeated here.
Subjective music broadcast unit 470, for by acoustical frequency spectrum analysis software by subjective music test signal importing sound
Learn in product, so that the dsp chip in acoustic product handles subjective music test signal according to gain parameter, and produced by acoustics
Subjective music test signal after product playback process；
Gain parameter optimizes unit 480, for the assessment result according to tuning personnel, and the gain in optimization dsp chip is joined
Count the gain parameter after being optimized and preserved by gain parameter storage unit；Assessment result includes：Need the frequency of optimization
Rate point and yield value corresponding with the Frequency point for needing to optimize.
In one embodiment of the invention, frequency response curve acquiring unit 410, is also used for initial excitation signal testing
Acoustic product, obtains product frequency response curve；
Gain parameter optimizes unit 480, is additionally operable to according to product frequency response curve, optimizes in acoustic product in dsp chip
Gain parameter.
In one embodiment of the invention, acoustic product includes earphone or horn assembly.
It should be noted that each implementation of each embodiment of the device shown in Fig. 3 and Fig. 4 and the method shown in Fig. 1 or Fig. 2
Example correspondence is identical, has been described in detail, will not be repeated here above.
In summary, the present invention is the early stage researched and developed in acoustic product after the completion of the physical model of acoustic product, is made
The physical model of acoustic product is tested with a pumping signal, frequency response curve is obtained, and by judging the physical model of acoustic product
Frequency response curve and standard frequency response curve difference, constantly adjust pumping signal using the EQ balanced devices in spectroscopy software,
Finally cause the frequency response curve of the physical model of acoustic product to meet the requirement of standard frequency response curve, obtain the DSP of acoustic product
With the gain parameter of software, i.e., the acoustical behavior of the physical model of acoustic product, this process are reversely verified by pumping signal
In do not need product to be connected or communicate with DSP, the problem of unstable or communication disruption of connection is not had so that tuning process is simple
It is single convenient, debugging efficiency can be effectively improved, the time is saved；After the software design patterns of acoustic product dsp chip are finished, by acquisition
In dsp chip in gain parameter write-in acoustic product, also more times can be provided for further optimization frequency response curve.Can
See, the technical scheme is that the process of tuning is placed on into early stage, while reaching tuning, alleviate after acoustic product research and development
The pressure of phase tuning, later stage DSP and software it is ready after, setting that can also be as needed to EQ further optimizes, improve adjust
Efficiency is tried, the time is saved；Meanwhile, early stage tuning need not communicate or be connected with DSP, but utilize in conventional acoustic analysis software
EQ balanced devices adjust input signal, it is to avoid connection is unstable etc. the problem of bring, and makes debugging process simple and convenient.
The foregoing is only a specific embodiment of the invention, under the above-mentioned teaching of the present invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of above-described embodiment.It will be understood by those skilled in the art that above-mentioned tool
The purpose of the present invention is simply preferably explained in body description, and protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of tuning method of acoustic product, it is characterised in that methods described includes：
Step one, using the physical model of acoustic product described in an initial excitation signal testing, initial frequency response curve is obtained；
Step 2, according to the difference of the initial frequency response curve and standard frequency response curve, obtains the increasing of the initial excitation signal
Beneficial parameter；The gain parameter includes the Frequency point and yield value corresponding with the Frequency point for needing to adjust for needing to adjust；
Step 3, imports the initial excitation signal, and call the acoustical frequency spectrum analysis soft in acoustical frequency spectrum analysis software
EQ balanced devices in part, adjust the initial excitation signal according to the gain parameter, obtain a new pumping signal；
Step 4, the physical model of the acoustic product is tested using the new pumping signal, new frequency response curve is obtained；
Step 5, judges whether the difference of the new frequency response curve and the standard frequency response curve is less than predetermined threshold value；If sentencing
It is no to break, then using the new frequency response curve and the new pumping signal repeat step two to step 4, until being judged as
It is to preserve the gain parameter finally obtained；
Step 6, after the software design patterns of the Digital Signal Processing dsp chip in the acoustic product are finished, by described in preservation
Gain parameter is write in the dsp chip in the acoustic product.
2. the method as described in claim 1, it is characterised in that described according to the initial frequency response curve and standard frequency response curve
Difference, obtaining the gain parameter of the specified initial excitation signal includes：
Distortion curve is obtained according to the initial frequency response curve and the initial excitation signal；
According to the difference and the distortion curve of the initial frequency response curve and standard frequency response curve, the initial excitation is obtained
The gain parameter of signal.
3. the method as described in claim 1, it is characterised in that after step 6, methods described further comprises：
Subjective music test signal is imported in the acoustic product by acoustical frequency spectrum analysis software, so as to the acoustic product
In the dsp chip the subjective music test signal is handled according to the gain parameter, and broadcast by the acoustic product
Put the subjective music test signal after processing；
According to the assessment result of tuning personnel, optimize the gain parameter in the dsp chip, the gain ginseng after being optimized
Count and preserve；
The assessment result includes：Need the Frequency point and yield value corresponding with the Frequency point for needing to optimize of optimization.
4. method as claimed in claim 3, it is characterised in that in the assessment result according to tuning personnel, optimization is described
After the gain parameter in dsp chip, the gain parameter and preservation after being optimized, methods described further comprises：
Using acoustic product described in the initial excitation signal testing, product frequency response curve is obtained；
According to the product frequency response curve, optimize the gain parameter of the dsp chip in the acoustic product.
5. the method as described in claim 1, it is characterised in that the initial excitation signal is 20-20KHz pink noise.
6. a kind of tuning device of acoustic product, it is characterised in that described device includes：
Frequency response curve acquiring unit, for the physical model using acoustic product described in an initial excitation signal testing, is obtained just
Beginning frequency response curve；
Gain parameter acquiring unit, for the difference according to the initial frequency response curve and standard frequency response curve, obtains described first
The gain parameter of beginning pumping signal；The gain parameter includes needing the Frequency point adjusted and the Frequency point adjusted with the needs
Corresponding yield value；
EQ balanced units, for being imported in acoustical frequency spectrum analysis software after the initial excitation signal, and call the acoustics
EQ balanced devices in spectroscopy software, adjust the initial excitation signal according to the gain parameter, obtain a new excitation
Signal；
The frequency response curve acquiring unit, is also used for the entity mould that the new pumping signal tests the acoustic product
Type, obtains new frequency response curve；
Judging unit, for judging whether the difference of the new frequency response curve and the standard frequency response curve is less than default threshold
Value；If being judged as NO, repeat the gain parameter using the new frequency response curve and the new pumping signal and obtain
The function of unit, the EQ balanced units and the frequency response curve acquiring unit is taken, until being judged as YES；
Gain parameter storage unit, for preserving the gain parameter that the gain parameter acquiring unit is finally obtained；
Gain parameter writing unit, for treating that the software design patterns of the Digital Signal Processing dsp chip in the acoustic product are finished
Afterwards, the gain parameter gain parameter storage unit preserved is write in the dsp chip in the acoustic product.
7. device as claimed in claim 6, it is characterised in that
The gain parameter acquiring unit, specifically for being lost according to the initial frequency response curve and the initial excitation signal
True curve；According to the difference and the distortion curve of the initial frequency response curve and standard frequency response curve, obtain described initial
The gain parameter of pumping signal.
8. device as claimed in claim 6, it is characterised in that described device further comprises：
Subjective music broadcast unit, is produced for subjective music test signal to be imported into the acoustics by acoustical frequency spectrum analysis software
In product, so that the dsp chip in the acoustic product handles the subjective music test signal according to the gain parameter,
And pass through the subjective music test signal after the acoustic product playback process；
Gain parameter optimizes unit, for the assessment result according to tuning personnel, optimizes the gain ginseng in the dsp chip
Count the gain parameter after being optimized and preserved by the gain parameter storage unit；The assessment result includes：Need
The Frequency point of optimization and yield value corresponding with the Frequency point for needing to optimize.
9. device as claimed in claim 8, it is characterised in that
The frequency response curve acquiring unit, is also used for acoustic product described in the initial excitation signal testing, obtains product
Frequency response curve；
The gain parameter optimizes unit, is additionally operable to, according to the product frequency response curve, optimize DSP described in the acoustic product
The gain parameter in chip.
10. device as claimed in claim 6, it is characterised in that the acoustic product includes earphone or horn assembly.
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