CN110536216A - A kind of balance parameters matching process, device, terminal device and storage medium based on interpolation processing - Google Patents
A kind of balance parameters matching process, device, terminal device and storage medium based on interpolation processing Download PDFInfo
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- CN110536216A CN110536216A CN201910835081.XA CN201910835081A CN110536216A CN 110536216 A CN110536216 A CN 110536216A CN 201910835081 A CN201910835081 A CN 201910835081A CN 110536216 A CN110536216 A CN 110536216A
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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
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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Abstract
The invention discloses a kind of balance parameters matching process, device, terminal device and storage medium based on interpolation processing carries out discrete sampling according to tone color of the gain variation range of balanced frequency point to speaker, obtains the spectrum curve of each discrete sampling point；Interpolation processing is carried out to the gain between each discrete sampling point, corresponding balance parameters interpolation curve is obtained, the spectrum curve of each interpolation point is obtained based on the balance parameters interpolation curve；Corresponding filter parameter is established according to the spectrum curve of each sampled point and interpolation point.The Dynamic Matching of the balance parameters changing rule of speaker analog machine and target speaker can be achieved in the present invention, when the parameter constant for keeping other influences speaker tone color, when only adjusting the balance parameters of target speaker, the balance parameters of speaker analog machine are adjusted accordingly, target speaker tone color in real time can be obtained, no longer need to carry out replica samples to target speaker.
Description
Technical field
The invention belongs to Audiotechnica field more particularly to a kind of balance parameters matching process based on interpolation processing, dress
It sets, terminal device and storage medium.
Background technique
Speaker is the terminal of entire sound system, and effect is audio electric energy to be converted into corresponding sound energy, and its spoke
It is mapped to space to go, it is the extremely important component part of sound system, is responsible for the ear that electric signal is transformed into acoustical signal for people
Piece directly listening to for task.But in some cases, for example performance is live, may not provide the speaker of speaker or offer
Because using the time longer, equipment is weathered, and tone color quality complies with one's wishes not to the utmost, and speaker volume is heavy, if performance all carries every time
It is outgoing, it is also inconvenient for musician.In addition, a good speaker is expensive, for needing various other speaker sounds
For the people of color, more speaker costs of purchase be undoubtedly also it is very high, the speaker moulds of various speaker tone colors can be simulated at this time by selecting
It proposes standby, is a wise selection for musicians.
And the tone color of speaker is ever-changing, is influenced by parameters such as equilibrium, gain, overload, reverberation, volumes, it is existing
Speaker analog machine in the tone color of simulated target speaker, need first the tone color by target speaker be adjusted to a satisfied tone color again into
The replica samples of row tone color, simulating the tone color come at this time is the speaker tone color under this group of special parameter, if adjusting one of them
Parameter then needs to carry out resampling.And in the numerous parameters for influencing speaker tone color, balance parameters play the adjusting of tone color
Critical effect, existing speaker analog machine are needed when acquiring the tone color of different balance parameters for different equilibriums
Parameter is frequently sampled, and cannot pass through the phase on speaker analog machine when the balance parameters variation on target speaker
The adjusting balance parameters answered, to realize dynamic synchronization rock noise color change.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, it is an object of that present invention to provide a kind of, the equilibrium based on interpolation processing is joined
Number matching process, device, terminal device and storage medium, it is intended to solve following problems:
The speaker analog machine of the prior art can not achieve tone color with the dynamic change of balance parameters, when change target speaker
Balance parameters after, after identical balance parameters are set on speaker analog machine, sound identical with target speaker cannot be obtained
Color, if it is desired to obtain the tone color, then need to carry out resampling, the simulation for being frequently sampled as speaker tone color is made troubles.
To achieve the above object, the present invention is implemented with the following technical solutions:
A kind of balance parameters matching process based on interpolation processing, which is characterized in that the described method includes:
A. discrete sampling is carried out according to tone color of the gain variation range of balanced frequency point to speaker, obtains each discrete sampling
The spectrum curve of point；B. interpolation processing is carried out to the gain between each discrete sampling point, it is bent obtains corresponding balance parameters interpolation
Line obtains the spectrum curve of each interpolation point based on the balance parameters interpolation curve；C. according to each sampled point and interpolation point
Spectrum curve establishes corresponding filter parameter.
Further, in the step a, the balance parameters gain in the gain variation range and speaker of balance parameters becomes
It is identical to change range, balanced frequency point and balanced bandwidth are also identical.
Further, in the step a, the discrete sampling specifically: select difference on each balanced frequency point
Yield value replica samples are carried out to speaker tone color, wherein being joined on the basis of the yield value of each balanced frequency point of first sampled point
Number once only changes the yield value of a frequency point on this basis, and the yield value of other frequency points is held in basic parameter point not
Become, to carry out the discrete sampling of each frequency point.
Further, in the step a, the input signal sampled every time is all the same.
Further, the input signal is white noise, powder noise, compounded sine wave or swept-frequency signal.
Further, the spectrum curve for obtaining each discrete sampling point specifically: bent with the frequency spectrum of first sampled point
On the basis of line, it is poor that the spectrum curve of other each sampled points and benchmark are made, and is based on the frequency point gain to obtain each discrete sampling point
The spectrum curve of variation.
Further, in the step b, interpolation processing is carried out by the way of linear or batten.
Further, in the step c, corresponding filter is established by inverse Fourier transform method or optimal method
Parameter.
A kind of balance parameters coalignment based on interpolation processing characterized by comprising
Sampling module is obtained for carrying out discrete sampling to the tone color of speaker according to the gain variation range of balanced frequency point
Take the spectrum curve of each discrete sampling point；
Interpolating module obtains corresponding balance parameters for carrying out interpolation processing to the gain between each discrete sampling point
Interpolation curve obtains the spectrum curve of each interpolation point based on the balance parameters interpolation curve；
Filter module, for establishing corresponding filter parameter according to the spectrum curve of each sampled point and interpolation point.
Further, the sampling module carries out discrete sampling specifically: selectes on each balanced frequency point different
Yield value carries out replica samples to speaker tone color, wherein being joined on the basis of the yield value of each balanced frequency point of first sampled point
Number once only changes the yield value of a frequency point on this basis, and the yield value of other frequency points is held in basic parameter point
It is constant, to carry out the discrete sampling in each frequency point.
Further, the sampling module obtains the spectrum curve of each discrete sampling point specifically: with first sampled point
Spectrum curve on the basis of, it is poor that the spectrum curve of other each sampled points and benchmark are made, and is based on this to obtain each discrete sampling point
The spectrum curve of frequency point change in gain.
Further, the interpolating module carries out interpolation processing by the way of linear or batten.
Further, the filter module establishes corresponding filtering by inverse Fourier transform method or optimal method
Device parameter.
A kind of terminal device, including processor, memory and be stored on the memory and can be by the processing
The executable program of device operation, which is characterized in that the processor executes any one of aforementioned institute when running the executable program
The balance parameters matching process based on interpolation processing stated.
A kind of computer readable storage medium, is stored thereon with executable program, which is characterized in that the executable program
Aforementioned described in any item balance parameters matching process based on interpolation processing are realized when being executed by processor.
Beneficial effect
Compared with prior art, the invention has the following beneficial effects:
(1) present invention provides a kind of balance parameters matching process based on interpolation processing, device, terminal device and storage and is situated between
Matter, the method can realize the Dynamic Matching of the balance parameters changing rule of speaker analog machine and target speaker, when keeping it
He influences the parameter constant of speaker tone color, when only adjusting the balance parameters of target speaker, to the balance parameters of speaker analog machine
It is adjusted accordingly, target speaker tone color in real time can be obtained, no longer need to carry out replica samples to target speaker.
(2) present invention realize speaker analog machine have with the identical balance parameters regulative mode of true speaker,
The balance parameters of a frequency range once can be only adjusted, the balance parameters of multiple frequency ranges can also be adjusted simultaneously, meet public use
Habit, it is convenient for the user to operate, improve convenience when user uses.
Detailed description of the invention
Fig. 1 is a kind of balance parameters matching process flow chart based on interpolation processing that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of balance parameters coalignment function structure chart based on interpolation processing that the embodiment of the present invention 2 provides；
Fig. 3 is a kind of hardware signal for balance parameters matching process based on interpolation processing that the embodiment of the present invention 3 provides
Figure.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments；Based on the embodiment of the present invention, originally
Field those of ordinary skill obtained all other embodiment without making creative work, belongs to this hair
Bright protected range.
Embodiment 1
The present embodiment provides a kind of balance parameters matching process based on interpolation processing, which is characterized in that the method packet
It includes:
A. discrete sampling is carried out according to tone color of the gain variation range of balanced frequency point to speaker, obtains each discrete sampling
The spectrum curve of point；
Wherein, balanced device is divided into Graphic equalizer, Parametric equalizer and REQ room equalizer three classes, and that applies on speaker is equal
Weighing apparatus is Parametric equalizer, generally three sections or four-part form balanced device, and by taking three-stage balanced device as an example, it can there are three frequency range
With adjustment, three high frequency, intermediate frequency, low frequency frequency ranges are generally divided into, the center frequency point and bandwidth of each frequency range are specified, to realize each frequency
The variation of certain bandwidth is carried out in section centered on center frequency point.
In the present embodiment, in the step a, balance parameters in the gain variation range and speaker of balance parameters
Gain variation range is identical, and balanced frequency point and balanced bandwidth are also identical.
Further, in the step a, the discrete sampling specifically: select difference on each balanced frequency point
Yield value replica samples are carried out to speaker tone color, wherein being joined on the basis of the yield value of each balanced frequency point of first sampled point
Number once only changes the yield value of a frequency point on this basis, and the yield value of other frequency points is held in basic parameter point not
Become, to carry out the discrete sampling of each frequency point.
By taking three-segment equalizer. as an example, when sampling for the first time, the tone color of target speaker is adjusted to a satisfied tone color, it is specific to this
Speaker tone color under parameter is sampled, and the other parameters on speaker in addition to equilibrium is enabled to remain unchanged, will be under the special parameter
High frequency corresponding to target speaker tone color, intermediate frequency, low frequency band three center frequency points yield value as basic parameter, herein
On the basis of, low frequency, intermediate frequency, the corresponding center frequency point of high-frequency band gain variation range in carry out discrete sampling respectively,
In, when the gain variation range to the corresponding center frequency point of low frequency band carries out discrete sampling, keep intermediate frequency, high-frequency band
Yield value chooses several gain points pair in basic parameter point in the gain variation range of the corresponding center frequency point of low frequency band
The tone color of speaker is sampled；When the gain variation range to the corresponding center frequency point of intermediate-frequency band carries out discrete sampling, protect
Hold low frequency, high-frequency band yield value in basic parameter point, in the gain variation range of the corresponding center frequency point of intermediate-frequency band
Several gain points are chosen to sample the tone color of speaker；In the gain variation range to the corresponding center frequency point of high-frequency band
When carrying out discrete sampling, keep the yield value of low frequency, intermediate-frequency band in basic parameter point, in the corresponding center frequency point of high-frequency band
Gain variation range in choose several gain points the tone color of speaker is sampled.
Further, in the step a, the input signal sampled every time is all the same.Enable the input signal sampled every time
It is identical, to exclude the situation different because of sampled result caused by different input signals, so that the result for guaranteeing sampling is only by equal
The influence for the parameter that weighs.
Further, the input signal is white noise, powder noise, compounded sine wave or swept-frequency signal.
Further, in the step a, the spectrum curve for obtaining each discrete sampling point specifically: with first
On the basis of the spectrum curve of sampled point, the spectrum curve of other each sampled points is made comparisons with benchmark, to obtain each discrete sampling
Spectrum curve of the point based on the frequency point change in gain.
Fourier transformation is carried out to the input signal of first time sampling, obtains the spectrum curve of the sampled point, the frequency spectrum
Curve is the spectrum curve based on the spectrum curve of the yield value of balanced frequency point and the other parameters in addition to balance parameters instantly
Superposition, which is chosen to be datum curve, the other parameters on speaker in addition to equilibrium is enabled to remain unchanged, will be subsequent
The spectrum curve of sampled point makes comparisons to arrive the frequency based on the frequency point change in gain of each discrete sampling point with datum curve
Spectral curve.
B. interpolation processing is carried out to the gain between each discrete sampling point, obtains corresponding balance parameters interpolation curve, base
The spectrum curve of each interpolation point is obtained in the balance parameters interpolation curve；
Further, in the present embodiment, it in the step b, is carried out at interpolation by the way of linear or batten
Reason.
(1) linear interpolation
By taking the balance parameters to low frequency band carry out interpolation processing as an example, in the gain of the corresponding center frequency point of low frequency band
In variation range, discrete grab sampling value is carried out, it is assumed that two adjacent sampled points are respectively (x1, y1) and (x2, y2), this
Any interpolation point between two sampled points is (x, y), then according to linear interpolation principle, wherein x indicates that low frequency band is corresponding
The gain point value of center frequency point, y indicate the corresponding spectrum curve value of the gain point, should meet:
Give any x1< x < x2, by solving above-mentioned formula, obtain the corresponding linear interpolation target value y of x are as follows:
Y is the corresponding spectrum curve of each interpolation point.
(2) spline interpolation
By taking the balance parameters to low frequency band carry out interpolation processing as an example, in the gain of the corresponding center frequency point of low frequency band
In variation range, discrete grab sampling value is carried out, by taking most common cubic spline interpolation algorithm as an example, by constructing adjacent adopt
Cubic spline functions between sampling point, the interpolating function have enough light on the interpolation section that neighbouring sample point forms
Slip brings the interpolation point in the section in the cubic spline functions into, can acquire the corresponding frequency spectrum of each interpolation point
Curve.
Wherein construct the concrete principle of cubic spline functions are as follows: have n+1 node: a=x on given section [a, b]0
<x1<...<xnFunctional value f (the x of=b and these nodesi)=yi, i=0,1 ... ..., n.If function S (x) meets S (x)=yi, i
=0,1 ... ..., n；S (x) is in each minizone [xi, xi+ 1] multinomial three times is no greater than on, S (x) is on section [a, b]
There are two rank continuous derivatives, then S (x) is referred to as cubic spline functions of the f (x) on section [a, b], to construct cubic spline and insert
Value function S (x):
S (x)=Si(x)=aix3+bix2+cix+di
Wherein ai, bi, ci, diIt is undetermined coefficient, interpolation condition meets:
S(xi)=f (xi), (i=0,1 ... ..., n)
In addition first derivative and second dervative of the S (x) on section [a, b] are continuous, so in node xi(i=1,
2 ... ..., n-1) at should meet the following condition of continuity:
S(xi- 0)=S (xi+0)
S′(xi- 0)=S ' (xi+0)
S″(xi- 0)=S " (xi+0)
Additional boundary condition S " (x0)=S " (xn)=0, can be obtained cubic spline function.
C. corresponding filter parameter is established according to the spectrum curve of each sampled point and interpolation point.
In the present embodiment, in the step c, corresponding filter is established by inverse Fourier transform method or optimal method
Wave device parameter.
Further, the filter can be FIR filter or iir filter, wherein pass through inverse Fourier transform
Method constructs FIR filter parameter, constructs iir filter parameter by optimal method.
In actual motion, by calling the filter parameter to carry out balancing operational.
Embodiment 2
The present embodiment provides a kind of balance parameters coalignment based on interpolation processing characterized by comprising
Sampling module 1 is obtained for carrying out discrete sampling to the tone color of speaker according to the gain variation range of balanced frequency point
Take the spectrum curve of each discrete sampling point；
Interpolating module 2 obtains corresponding balance parameters for carrying out interpolation processing to the gain between each discrete sampling point
Interpolation curve obtains the spectrum curve of each interpolation point based on the balance parameters interpolation curve；
Filter module 3, for establishing corresponding filter parameter according to the spectrum curve of each sampled point and interpolation point.
Further, the sampling module 1 carries out discrete sampling specifically: selectes on each balanced frequency point different
Yield value carries out replica samples to speaker tone color, wherein being joined on the basis of the yield value of each balanced frequency point of first sampled point
Number once only changes the yield value of a frequency point on this basis, and the yield value of other frequency points is held in basic parameter point
It is constant, to carry out the discrete sampling in each frequency point.
Further, the sampling module 1 obtains the spectrum curve of each discrete sampling point specifically: with first sampled point
Spectrum curve on the basis of, it is poor that the spectrum curve of other each sampled points and benchmark are made, and is based on this to obtain each discrete sampling point
The spectrum curve of frequency point change in gain.
Further, the interpolating module 2 carries out interpolation processing by the way of linear or batten.
Further, the filter module 3 establishes corresponding filter by inverse Fourier transform method or optimal method
Wave device parameter.
It should be understood that the balance parameters coalignment provided by the above embodiment based on interpolation processing is in actual motion
When, only with the division progress of above-mentioned each program module for example, can according to need in practical application and divide above-mentioned processing
With by different program module completions, i.e., the internal structure of the balance parameters coalignment based on interpolation processing is divided into difference
Program module, to complete all or part of processing described above.In addition, provided by the above embodiment be based on interpolation processing
Balance parameters coalignment and embodiment of the method belong to same design, specific implementation process is detailed in embodiment of the method, here
It repeats no more.
Embodiment 3
In order to realize the above-mentioned balance parameters matching process based on interpolation processing, the embodiment of the invention also provides a kind of bases
In the hardware configuration of the balance parameters matching process of interpolation processing.Below to the equilibrium based on interpolation processing of the embodiment of the present invention
The hardware configuration of characteristic parameter matching method is described further, and Fig. 3 is the schematic block diagram of terminal device provided by the embodiments of the present application.
The present embodiment provides a kind of terminal devices 100, as shown in figure 3, including processor 110, memory 120 and storage
On the memory and the executable program 130 that can be run by the processor, the processor 110 runs and described can hold
It executes when line program 130 such as the step in previous embodiment 1, such as step a to c shown in FIG. 1.Alternatively, the processor 110
The function such as each module/unit in previous embodiment 2, such as module 1 shown in Fig. 2 are executed when running the executable program 130
To 3 function.
Illustratively, executable program 130 can be divided into one or more module/units, one or more
A module/unit is stored in the memory 120, and is executed by the processor 110, to complete the application.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the executable program 130 in the terminal device 100 is described.
The terminal device 100 includes but are not limited to processor 110, memory 120.Those skilled in the art can manage
Solution, Fig. 3 is only an example of terminal device 100, does not constitute the restriction to terminal device 100, may include than diagram
More or fewer components perhaps combine certain components or different components, such as the terminal device can also include defeated
Enter equipment, output equipment, network access equipment, bus etc..
The processor 110 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 120 can be the internal storage unit of the terminal device 100, such as terminal device 100 is hard
Disk or memory.The memory 120 is also possible to the External memory equipment of the terminal device 100, such as the terminal device
The plug-in type hard disk being equipped on 100, intelligent memory card (Smart Media Card, SMC), secure digital (Secure
Digital, SD) card, flash card (Flash Card) etc..Further, the memory 120 can also both include the terminal
The internal storage unit of equipment 100 also includes External memory equipment.The memory 120 for store the computer program with
And other programs and data needed for the terminal device.The memory 120, which can be also used for temporarily storing, have been exported
Or the data that will be exported.
Embodiment 4
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete by computer program.
Therefore, the embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with executable computer
Program, which is characterized in that the base as described in previous embodiment 1 is realized when the executable computer program is executed by processor
In the balance parameters matching process of interpolation processing.
Wherein, the computer program includes computer program code, and the computer program code can be source code
Form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium may include: can
Carry any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, CD, computer of the computer program code
Memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access
Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer-readable medium
The content for including can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as in certain departments
Method administrative area, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and telecommunication signal.
Those of ordinary skill in the art it should be appreciated that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and
Algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode execute, the specific application and design constraint depending on technical solution.Professional technician can be with
Each specific application is used different methods to achieve the described function, but this realization is it is not considered that exceed this Shen
Range please.
In embodiment provided herein, it should be understood that disclosed mobile terminal and method can pass through it
Its mode is realized.For example, mobile terminal embodiment described above is only schematical, for example, the module or list
Member division, only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or
Component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point is shown
The mutual coupling or direct-coupling or communication connection shown or discussed can be through some interfaces, between device or unit
Coupling or communication connection are connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (15)
1. a kind of balance parameters matching process based on interpolation processing, which is characterized in that the described method includes:
A. discrete sampling is carried out according to tone color of the gain variation range of balanced frequency point to speaker, obtains each discrete sampling point
Spectrum curve；B. interpolation processing is carried out to the gain between each discrete sampling point, obtains corresponding balance parameters interpolation curve, base
The spectrum curve of each interpolation point is obtained in the balance parameters interpolation curve；C. according to the frequency spectrum of each sampled point and interpolation point song
Line establishes corresponding filter parameter.
2. a kind of balance parameters matching process based on interpolation processing according to claim 1, which is characterized in that described
In step a, the gain variation range of balance parameters is identical as the balance parameters gain variation range on speaker, balanced frequency point and
The bandwidth that weighs is also identical.
3. a kind of balance parameters matching process based on interpolation processing according to claim 2, which is characterized in that described
In step a, the discrete sampling specifically: select different yield values on each balanced frequency point and speaker tone color is answered
System sampling, wherein once only being changed on this basis using the yield value of each balanced frequency point of first sampled point as benchmark parameter
The yield value of one frequency point, it is constant that the yield value of other frequency points is held in basic parameter point, to carry out the discrete of each frequency point
Sampling.
4. a kind of balance parameters matching process based on interpolation processing according to claim 1, which is characterized in that described
In step a, the input signal sampled every time is all the same.
5. a kind of balance parameters matching process based on interpolation processing according to claim 4, which is characterized in that described defeated
Entering signal is white noise, powder noise, compounded sine wave or swept-frequency signal.
6. a kind of balance parameters matching process based on interpolation processing according to claim 3, which is characterized in that described to obtain
Take the spectrum curve of each discrete sampling point specifically: on the basis of the spectrum curve of first sampled point, by other each sampled points
Spectrum curve make comparisons with benchmark, to obtain each spectrum curve of the discrete sampling point based on the frequency point change in gain.
7. a kind of balance parameters matching process based on interpolation processing according to claim 1, which is characterized in that described
In step b, interpolation processing is carried out by the way of linear or batten.
8. a kind of balance parameters matching process based on interpolation processing according to claim 1, which is characterized in that the step
In rapid c, corresponding filter parameter is established by inverse Fourier transform method or optimal method.
9. a kind of balance parameters coalignment based on interpolation processing characterized by comprising
Sampling module obtains each for carrying out discrete sampling to the tone color of speaker according to the gain variation range of balanced frequency point
The spectrum curve of discrete sampling point；
Interpolating module obtains corresponding balance parameters interpolation for carrying out interpolation processing to the gain between each discrete sampling point
Curve obtains the spectrum curve of each interpolation point based on the balance parameters interpolation curve；
Filter module, for establishing corresponding filter parameter according to the spectrum curve of each sampled point and interpolation point.
10. a kind of balance parameters coalignment based on interpolation processing according to claim 9, which is characterized in that described
Sampling module carries out discrete sampling specifically: selectes different yield values on each balanced frequency point and answers speaker tone color
System sampling, wherein once only being changed on this basis using the yield value of each balanced frequency point of first sampled point as benchmark parameter
The yield value of one frequency point, it is constant that the yield value of other frequency points is held in basic parameter point, to carry out in each frequency point
Discrete sampling.
11. a kind of balance parameters coalignment based on interpolation processing according to claim 9, which is characterized in that described
Sampling module obtains the frequency spectrum function of each discrete sampling point specifically: on the basis of the spectrum curve of first sampled point, by it
It is poor that the spectrum curve and benchmark of his each sampled point are made, bent to obtain frequency spectrum of each discrete sampling point based on the frequency point change in gain
Line.
12. a kind of balance parameters coalignment based on interpolation processing according to claim 9, which is characterized in that described
Interpolating module carries out interpolation processing by the way of linear or batten.
13. a kind of balance parameters coalignment based on interpolation processing according to claim 9, which is characterized in that described
Filter module establishes corresponding filter parameter by inverse Fourier transform method or optimal method.
14. a kind of terminal device, including processor, memory and it is stored on the memory and can be by the processor
The executable program of operation, which is characterized in that the processor executes claim 1-8 such as when running the executable program and appoints
Balance parameters matching process described in one based on interpolation processing.
15. a kind of computer readable storage medium, is stored thereon with executable program, which is characterized in that the executable program
Such as claim 1-8 described in any item balance parameters matching process based on interpolation processing are realized when being executed by processor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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