CN108111443A - A kind of method and device of definite voice link parametric equalizer tuning parameter - Google Patents

A kind of method and device of definite voice link parametric equalizer tuning parameter Download PDF

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CN108111443A
CN108111443A CN201611070694.1A CN201611070694A CN108111443A CN 108111443 A CN108111443 A CN 108111443A CN 201611070694 A CN201611070694 A CN 201611070694A CN 108111443 A CN108111443 A CN 108111443A
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frequency
debugged
gain
frequency response
parametric equalizer
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CN108111443B (en
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印晶晶
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03878—Line equalisers; line build-out devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

The present invention provides a kind of method and device of definite voice link parametric equalizer tuning parameter, including：Obtain frequency response data to be debugged and target frequency response；It determines each frequency point in the frequency response data to be debugged corresponding to Gain tuning direction of the Gain tuning for the corresponding frequency point gain of target frequency response；According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided；For each frequency range to be debugged at least one frequency range to be debugged, the wave filter in voice link parametric equalizer is selected respectively, and determines the tuning parameter of the voice link parametric equalizer median filter.The solution of the present invention can improve the accuracy of definite voice link parametric equalizer tuning parameter.

Description

A kind of method and device of definite voice link parametric equalizer tuning parameter
Technical field
The present invention relates to field of communication technology more particularly to a kind of sides of definite voice link parametric equalizer tuning parameter Method and device.
Background technology
As the development of the communication technology is, it is necessary to respond the voice signal frequency of voice communication uplink and downlink It is tested, to improve the reliability of voice communication.
In progress test process is responded to voice signal frequency, voice signal frequency response needs to meet stringent frequency Response limitation, such as third generation partner program (3rdGeneration partnership project, 3GPP) communication system In system (Telecommunications System, TS) 26.131, narrow band voice signal frequency response that is hand-held and wearing terminal Frequency response limitation envelope requirement shown in FIG. 1 need to be met.But due to various factors in voice communication (such as sound outlet hole, sound The hardware conditions such as cavity configuration and other speech enhan-cement modules) influence, the frequency responses of some frequency ranges can generate attenuation or put Greatly, frequency response is made to be unsatisfactory for frequency response limitation, therefore needs to carry out frequency response compensation to voice signal using balanced device, is made It meets frequency response limitation.
At present, frequency response compensation is carried out to voice signal using balanced device, unlimited long pulse shown in Fig. 2 can be used and ring The voice link parametric equalizer of (Infinite Impulse Response, IIR) subband cascade structure is answered to carry out frequency response Compensation.It is respectively 1 IIR lower frame filtering comprising n sub-filter in the balanced device of the cascade structures of IIR subbands shown in Fig. 2 Device, n-2 IIR band logical peak filter, 1 overhead wave filter of IIR.Using voice link parametric equalizer to voice signal into During line frequency response compensation, by adjusting the parameter of voice link parametric equalizer, reach the compensation to frequency response.It needs to adjust Whole parameter mainly includes：The centre frequency f for being promoted or being decayed0/w0, actual gain G/dBgain (the G ≡ at centre frequency 10dBgain/20) and bandwidth gain GBThe desired bandwidth at place or quality factor bw/Q/ Δs w.Wherein, GBIt is related with definitions of bandwidth and Change with G and change,fsFor sample frequency, the gain centered on G at frequency.
During the above-mentioned tuning parameter to voice link parametric equalizer is adjusted, due to voice link parametric equalization The tuning parameter of device is not directly perceived visible, and tester is needed to debug manually repeatedly in test process, and debugging is balanced manually Device had the disadvantage that in debugging process：
(1) number of sub-bands is fixed, and debugging is dumb：Sub-band division it is more, the peak of adjusting is more sharp, the tune of single subband Examination scope becomes smaller, and overall complexity is promoted therewith；Sub-band division it is fewer, the peak of adjusting is just wider, when the frequency that adjusts of needs When section is more, the precision of adjusting can not be met the requirements.
(2) multi-parameter is debugged manually, and efficiency is low：During actual test, if meeting some extreme cases, due to ginseng Relation between number adjustment amount and frequency response knots modification is complicated, each parameter repeatedly debugging may be required for just preferably to be imitated Fruit causes testing efficiency very low.
(3) frequency response has an impact speech performance, it is necessary to commissioning experience：Excessively being promoted in view of frequency response may cause voice to lose Very, excessive attenuation may cause speech loudness to decline too many, if using the method for tune ginseng manually, it is necessary to which tester has centainly Audio elementary and adjust ginseng experience, otherwise the more may adjust the more poor.
Therefore debug voice link parametric equalizer manually at present, determine the side of voice link parametric equalizer tuning parameter Method, efficiency is than relatively low, and accuracy is relatively low.
The content of the invention
The embodiment of the present invention provides a kind of method and device of definite voice link parametric equalizer tuning parameter, to improve Determine the accuracy of voice link parametric equalizer tuning parameter.
In a first aspect, providing a kind of method of definite voice link parametric equalizer tuning parameter, this method includes：
Obtain the frequency response data to be debugged of voice signal and target frequency response in voice link；It determines by described in Each frequency point corresponds to increasing of the Gain tuning for the corresponding frequency point gain of target frequency response in frequency response data to be debugged Beneficial adjustment direction, the Gain tuning direction include adjusting upward and adjusting downwards；According to the Gain tuning direction of each frequency point, draw Divide at least one frequency range to be debugged, wherein, each frequency range to be debugged at least one frequency range to be debugged includes gain The frequency point of the identical and adjacent setting quantity of adjustment direction；For each frequency to be debugged at least one frequency range to be debugged Section selects the wave filter in voice link parametric equalizer, and determines the voice link parametric equalizer median filter respectively Tuning parameter.
In a kind of possible embodiment, determine each frequency point in the frequency response data to be debugged corresponding to Gain tuning The Gain tuning direction of the frequency point gain is corresponded to for target frequency response, including：
By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, obtain To the frequency response data to be debugged for meeting frequency response limitation；The frequency response data to be debugged of frequency response limitation will be met Each frequency point corresponds to Gain tuning direction of the Gain tuning for the corresponding frequency point gain of target frequency response, as by described in Each frequency point corresponds to increasing of the Gain tuning for the corresponding frequency point gain of target frequency response in frequency response data to be debugged Beneficial adjustment direction.
The frequency response data Gain tuning to be debugged is responded what gain limited to predeterminated frequency is met by above-mentioned In the range of realization method, can improve frequency response data to be debugged be adjusted to target frequency response accuracy and can grasp The property made.
In a kind of possible embodiment, the frequency response data Gain tuning to be debugged is rung to predeterminated frequency is met In the range of answering gain limitation, the frequency response data to be debugged for meeting frequency response limitation is obtained, including：
Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, the The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；First Frequency response data intermediate-frequeney point to be debugged after secondary registration process corresponds to the gain frequency point gain corresponding with frequency response lower limit Between difference be less than zero and less than in the case of given threshold, using peak filter to waiting to adjust after the first time registration process Try frequency response data carry out attenuation processing, until attenuation processing after frequency response data intermediate-frequeney point to be debugged corresponds to gain and Difference is more than given threshold between frequency response lower limit corresponds to the frequency point gain；It is rung for the frequency to be debugged after attenuation processing Answer data intermediate frequency dot gains be less than the frequency response lower limit correspond to it is to be debugged after at least one attenuation processing of frequency point gain The frequency range to be debugged after each attenuation processing in frequency range selects the wave filter in voice link parametric equalizer, is promoted Processing, until promoted each frequency point in treated frequency response data to be debugged corresponds to gain be located at the frequency response upper limit and In the range of the frequency response gain limitation of the frequency response lower limit limitation.
In a kind of possible embodiment, it is less than for the frequency response data intermediate frequency dot gains to be debugged after attenuation processing The frequency response lower limit corresponds to each attenuation processing in the frequency range to be debugged after at least one attenuation processing of frequency point gain Frequency range to be debugged afterwards selects the wave filter in voice link parametric equalizer, carries out promotion processing, including：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, is carried out using peak filter at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
In a kind of possible embodiment, the wave filter in voice link parametric equalizer is selected, including：
If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select in voice link parametric equalizer Some lower frame wave filters are as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；If frequency range to be debugged Centre frequency is more than the highest frequency of setting, then selects in voice link parametric equalizer existing overhead wave filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be less than setting quantity, then select in voice link parametric equalizer existing peak filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be more than setting quantity, then newly set and peak filter and treat newly-installed peak filter as described in Debug the wave filter in the voice link parametric equalizer of frequency range.
In a kind of possible embodiment, the tuning parameter of the voice link parametric equalizer median filter is determined, wrap It includes：
According to the centre frequency of the centre frequency of frequency range to be debugged and the voice link parametric equalizer median filter it Between difference, it is determined whether can be by the center frequency of the frequency range to be debugged and the voice link parametric equalizer median filter Frequency range where rate merges into same frequency range；It if can be by the frequency range and the voice link parametric equalizer median filter center Frequency range where frequency merges into same frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalization Average between device median filter centre frequency is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged Centre frequency, gain and the voice link parametric equalizer median filter are corresponded to the centre frequency of the frequency range to be debugged Centre frequency corresponds to average between gain as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged Gain at frequency of heart, bandwidth between frequency section boundary frequency point after merging is the voice link parameter of the frequency range to be debugged The desired bandwidth of wave filter in balanced device；It if can not be by the frequency range and the voice link parametric equalizer median filter Frequency range where centre frequency merges into same frequency range, then using the centre frequency of the frequency range to be debugged as the frequency range to be debugged Voice link parametric equalizer in wave filter centre frequency, with the centre frequency of the frequency range to be debugged correspond to gain make For the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, with the frequency to be debugged Bandwidth between section boundary frequency point is the expectation band of the wave filter in the voice link parametric equalizer of the frequency range to be debugged It is wide.
Second aspect, provides a kind of method of definite voice link parametric equalizer tuning parameter, and this method includes：
It obtains in voice link under the frequency response data to be debugged of voice signal, the frequency response upper limit and frequency response Limit；Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, it is right for the first time The maximum gain for frequency response data to be debugged that treated together is equal to the least gain of the frequency response upper limit；It aligns in first time It is poor between frequency response data intermediate-frequeney point to be debugged the corresponds to gain frequency point gain corresponding with frequency response lower limit that treated Value is less than zero and is less than in the case of given threshold, using peak filter to the frequency to be debugged after the first time registration process Response data carries out attenuation processing, until the frequency response data intermediate-frequeney point to be debugged after attenuation processing corresponds to gain and rung with frequency Lower limit is answered to correspond to difference between the frequency point gain and is more than given threshold；For the frequency response data to be debugged after attenuation processing Intermediate frequency dot gains are less than in the frequency range to be debugged after the frequency response lower limit corresponds at least one attenuation processing of frequency point gain Each attenuation processing after frequency range to be debugged, select voice link parametric equalizer in wave filter, carry out promotion processing, carry It rises each frequency point in treated frequency response data to be debugged and corresponds to gain and be located at the frequency response upper limit and frequency response lower limit limit In the range of the frequency response gain limitation of system；Determine the tuning parameter of the voice link parametric equalizer median filter.
In a kind of possible embodiment, it is less than for the frequency response data intermediate frequency dot gains to be debugged after attenuation processing The frequency response lower limit corresponds to each attenuation processing in the frequency range to be debugged after at least one attenuation processing of frequency point gain Frequency range to be debugged afterwards selects the wave filter in voice link parametric equalizer, including：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, and peak filter is selected to carry out at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
In a kind of possible embodiment, the wave filter in voice link parametric equalizer is selected, including：
If the centre frequency of the frequency range to be debugged after attenuation processing is less than the low-limit frequency of setting, voice link is selected to join Measure voice link parametric equalizer of the existing lower frame wave filter as the frequency range to be debugged after the attenuation processing in balanced device In wave filter；If the centre frequency of the frequency range to be debugged after attenuation processing is more than the highest frequency of setting, voice chain is selected Existing overhead wave filter is equal as the voice link parameter of the frequency range to be debugged after the attenuation processing in the parametric equalizer of road Wave filter in weighing apparatus；If the centre frequency of the frequency range to be debugged after attenuation processing is more than the low-limit frequency of setting, less than setting Highest frequency and the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer Less than setting quantity, then existing peak filter in voice link parametric equalizer is selected to be treated as after the attenuation processing Debug the wave filter in the voice link parametric equalizer of frequency range；If the centre frequency of the frequency range to be debugged after attenuation processing is more than The low-limit frequency of setting, less than setting highest frequency and with existing peak filter in voice link parametric equalizer Interval number of samples between centre frequency is more than setting quantity, then newly sets peak filter and by newly-installed peak filter As the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing.
In a kind of possible embodiment, the debugging ginseng for determining the voice link parametric equalizer median filter Number, including：
According to the centre frequency of the frequency range to be debugged after the attenuation processing with being filtered in the voice link parametric equalizer Difference between the centre frequency of ripple device, it is determined whether can be by the frequency range to be debugged after the attenuation processing and the voice chain Frequency range where the centre frequency of road parametric equalizer median filter merges into same frequency range；It if can be by the frequency range and institute's predicate Frequency range where sound link parametric equalizer median filter centre frequency merges into same frequency range, then to be treated after the attenuation processing It debugs described in the average conduct between the centre frequency of frequency range and the voice link parametric equalizer median filter centre frequency The centre frequency of wave filter in the voice link parametric equalizer of frequency range to be debugged after attenuation processing, with the attenuation processing The centre frequency of frequency range to be debugged afterwards corresponds to gain and the voice link parametric equalizer median filter centre frequency corresponds to Average between gain is as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Gain at frequency of heart, the bandwidth between frequency section boundary frequency point after merging is the frequency range to be debugged after the attenuation processing The desired bandwidth of wave filter in voice link parametric equalizer；It if can not be equal by the frequency range and the voice link parameter Frequency range where weighing apparatus median filter centre frequency merges into same frequency range, then in the frequency range to be debugged after the attenuation processing Centre frequency of the frequency of heart as the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing, Gain is corresponded to as the frequency range to be debugged after the attenuation processing using the centre frequency of the frequency range to be debugged after the attenuation processing Voice link parametric equalizer in filter centre frequency at gain, with the frequency range to be debugged after the attenuation processing Bandwidth between the frequency point of border is the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Desired bandwidth.
The third aspect, provides a kind of device of definite voice link parametric equalizer tuning parameter, which includes obtaining Unit and processing unit, wherein, acquiring unit, for obtain the frequency response data to be debugged of voice signal in voice link with And target frequency response；Processing unit, for determining each frequency point in the frequency response data to be debugged corresponding to Gain tuning For the Gain tuning direction of the corresponding frequency point gain of target frequency response, the Gain tuning direction includes adjusting upward With downward adjustment；According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided, wherein, it is described at least one Each frequency range to be debugged in frequency range to be debugged includes the frequency point of the identical and adjacent setting quantity in Gain tuning direction；For Each frequency range to be debugged at least one frequency range to be debugged selects the filtering in voice link parametric equalizer respectively Device, and determine the tuning parameter of the voice link parametric equalizer median filter.
In a kind of possible embodiment, the processing unit determines to ring the frequency to be debugged in the following way Each frequency point in data is answered to correspond to Gain tuning direction of the Gain tuning for the corresponding frequency point gain of target frequency response：
By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, obtain To the frequency response data to be debugged for meeting frequency response limitation；It determines that the frequency response to be debugged of frequency response limitation will be met Each frequency point of data corresponds to Gain tuning direction of the Gain tuning for the frequency point gain of target frequency response correspondence, as general Each frequency point corresponds to Gain tuning as the corresponding frequency point gain of target frequency response in the frequency response data to be debugged Gain tuning direction.
In a kind of possible embodiment, the processing unit, in the following way by the frequency response number to be debugged According to Gain tuning in the range of meeting predeterminated frequency response gain limitation, the frequency to be debugged for meeting frequency response limitation is obtained Response data：
Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, the The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；First Frequency response data intermediate-frequeney point to be debugged after secondary registration process corresponds to the gain frequency point gain corresponding with frequency response lower limit Between difference be less than zero and less than in the case of given threshold, using peak filter to waiting to adjust after the first time registration process Try frequency response data carry out attenuation processing, until attenuation processing after frequency response data intermediate-frequeney point to be debugged corresponds to gain and Difference is more than given threshold between frequency response lower limit corresponds to the frequency point gain；It is rung for the frequency to be debugged after attenuation processing Answer data intermediate frequency dot gains be less than the frequency response lower limit correspond to it is to be debugged after at least one attenuation processing of frequency point gain The frequency range to be debugged after each attenuation processing in frequency range selects the wave filter in voice link parametric equalizer, is promoted Processing, until promoted each frequency point in treated frequency response data to be debugged corresponds to gain be located at the frequency response upper limit and In the range of the frequency response gain limitation of the frequency response lower limit limitation.
In a kind of possible embodiment, the processing unit, in the following way for be debugged after attenuation processing After frequency response data intermediate frequency dot gains correspond at least one attenuation processing of frequency point gain less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged selects the wave filter in voice link parametric equalizer, into Row promotion is handled：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, is carried out using peak filter at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
In a kind of possible embodiment, the processing unit selects voice link parametric equalizer in the following way In wave filter：
If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select in voice link parametric equalizer Some lower frame wave filters are as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；If frequency range to be debugged Centre frequency is more than the highest frequency of setting, then selects in voice link parametric equalizer existing overhead wave filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be less than setting quantity, then select in voice link parametric equalizer existing peak filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be more than setting quantity, then newly set and peak filter and treat newly-installed peak filter as described in Debug the wave filter in the voice link parametric equalizer of frequency range.
In a kind of possible embodiment, the processing unit determines that the voice link parameter is equal in the following way The tuning parameter of weighing apparatus median filter：
According to the centre frequency of the centre frequency of frequency range to be debugged and the voice link parametric equalizer median filter it Between difference, it is determined whether can be by the center frequency of the frequency range to be debugged and the voice link parametric equalizer median filter Frequency range where rate merges into same frequency range；It if can be by the frequency range and the voice link parametric equalizer median filter center Frequency range where frequency merges into same frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalization Average between device median filter centre frequency is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged Centre frequency, gain and the voice link parametric equalizer median filter are corresponded to the centre frequency of the frequency range to be debugged Centre frequency corresponds to average between gain as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged Gain at frequency of heart, bandwidth between frequency section boundary frequency point after merging is the voice link parameter of the frequency range to be debugged The desired bandwidth of wave filter in balanced device；It if can not be by the frequency range and the voice link parametric equalizer median filter Frequency range where centre frequency merges into same frequency range, then using the centre frequency of the frequency range to be debugged as the frequency range to be debugged Voice link parametric equalizer in wave filter centre frequency, with the centre frequency of the frequency range to be debugged correspond to gain make For the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, with the frequency to be debugged Bandwidth between section boundary frequency point is the expectation band of the wave filter in the voice link parametric equalizer of the frequency range to be debugged It is wide.
Fourth aspect, provides a kind of device of definite voice link parametric equalizer tuning parameter, which includes obtaining Unit and processing unit, wherein, acquiring unit, for obtain the frequency response data to be debugged of voice signal in voice link, The frequency response upper limit and frequency response lower limit；Processing unit, for each frequency point in the frequency response data to be debugged Corresponding gain carries out first time registration process, wherein, frequency response data to be debugged after first time registration process most increases Benefit is equal to the least gain of the frequency response upper limit；Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to Difference is less than zero and is less than in the case of given threshold between the gain frequency point gain corresponding with frequency response lower limit, using peak value Wave filter carries out attenuation processing to the frequency response data to be debugged after the first time registration process, until after attenuation processing Frequency response data intermediate-frequeney point to be debugged, which corresponds to difference between the gain frequency point gain corresponding with frequency response lower limit and is more than, to be set Determine threshold value；It is less than the frequency response lower limit for the frequency response data intermediate frequency dot gains to be debugged after attenuation processing and corresponds to frequency The frequency range to be debugged after each attenuation processing in frequency range to be debugged after at least one attenuation processing of dot gains selects voice Wave filter in link parametric equalizer, carries out promotion processing, each frequency point in the frequency response data to be debugged that promotes that treated Corresponding gain is located in the gain ranging that the frequency response upper limit is limited with frequency response lower limit；Determine that the voice link parameter is equal The tuning parameter of weighing apparatus median filter.
In a kind of possible embodiment, the processing unit, in the following way for be debugged after attenuation processing After frequency response data intermediate frequency dot gains correspond at least one attenuation processing of frequency point gain less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged selects the wave filter in voice link parametric equalizer：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, and peak filter is selected to carry out at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
In a kind of possible embodiment, the processing unit selects voice link parametric equalizer in the following way In wave filter：
If the centre frequency of the frequency range to be debugged after attenuation processing is less than the low-limit frequency of setting, voice link is selected to join Measure voice link parametric equalizer of the existing lower frame wave filter as the frequency range to be debugged after the attenuation processing in balanced device In wave filter；If the centre frequency of the frequency range to be debugged after attenuation processing is more than the highest frequency of setting, voice chain is selected Existing overhead wave filter is equal as the voice link parameter of the frequency range to be debugged after the attenuation processing in the parametric equalizer of road Wave filter in weighing apparatus；If the centre frequency of the frequency range to be debugged after attenuation processing is more than the low-limit frequency of setting, less than setting Highest frequency and the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer Less than setting quantity, then existing peak filter in voice link parametric equalizer is selected to be treated as after the attenuation processing Debug the wave filter in the voice link parametric equalizer of frequency range；If the centre frequency of the frequency range to be debugged after attenuation processing is more than The low-limit frequency of setting, less than setting highest frequency and with existing peak filter in voice link parametric equalizer Interval number of samples between centre frequency is more than setting quantity, then newly sets peak filter and by newly-installed peak filter As the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing.
In a kind of possible embodiment, the processing unit determines that the voice link parameter is equal in the following way The tuning parameter of weighing apparatus median filter：
According to the centre frequency of the frequency range to be debugged after the attenuation processing with being filtered in the voice link parametric equalizer Difference between the centre frequency of ripple device, it is determined whether can be by the frequency range to be debugged after the attenuation processing and the voice chain Frequency range where the centre frequency of road parametric equalizer median filter merges into same frequency range；It if can be by the frequency range and institute's predicate Frequency range where sound link parametric equalizer median filter centre frequency merges into same frequency range, then to be treated after the attenuation processing It debugs described in the average conduct between the centre frequency of frequency range and the voice link parametric equalizer median filter centre frequency The centre frequency of wave filter in the voice link parametric equalizer of frequency range to be debugged after attenuation processing, with the attenuation processing The centre frequency of frequency range to be debugged afterwards corresponds to gain and the voice link parametric equalizer median filter centre frequency corresponds to Average between gain is as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Gain at frequency of heart, the bandwidth between frequency section boundary frequency point after merging is the frequency range to be debugged after the attenuation processing The desired bandwidth of wave filter in voice link parametric equalizer；It if can not be equal by the frequency range and the voice link parameter Frequency range where weighing apparatus median filter centre frequency merges into same frequency range, then in the frequency range to be debugged after the attenuation processing Centre frequency of the frequency of heart as the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing, Gain is corresponded to as the frequency range to be debugged after the attenuation processing using the centre frequency of the frequency range to be debugged after the attenuation processing Voice link parametric equalizer in filter centre frequency at gain, with the frequency range to be debugged after the attenuation processing Bandwidth between the frequency point of border is the wave filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Desired bandwidth.
The method and device of definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention is, it can be achieved that right Voice link parametric equalizer tuning parameter determines, the filter in additional manual debugging voice link parametric equalizer is not required Ripple device tuning parameter, so user is not required to have any audio elementary knowledge and parameter testing experience, debugging efficiency is high, and not The parameter of number of frequency bands to be debugged and each frequency range to be debugged is limited, can be obtained more by relatively low exponent number or less frequency range to be debugged Accurate tuning parameter improves the accuracy of definite tuning parameter.
Description of the drawings
Fig. 1 is that the frequency response that narrow band voice signal frequency response meets limits schematic diagram；
Fig. 2 is the equaliser structure schematic diagram of IIR subband cascade structures；
Fig. 3 is a kind of implementing procedure of definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention Figure；
Fig. 4 is the signal provided in an embodiment of the present invention that frequency response data to be debugged is adjusted according to target frequency response Figure；
Fig. 5 is the wave filter debugging provided in an embodiment of the present invention determined in frequency band speech link parametric equalizer to be debugged The implementing procedure figure of parameter；
Fig. 6 is the realization process of another definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention Schematic diagram；
Fig. 7 A to Fig. 7 D adjust frequency response data to be debugged to be provided in an embodiment of the present invention according to predeterminated frequency response Schematic diagram；
Fig. 8 is the flow diagram provided in an embodiment of the present invention for frequency response data to be debugged promoted processing；
Fig. 9 is that a kind of structure of device of definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention is shown It is intended to；
Figure 10 is another knot of device of definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention Structure schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is retouched in detail It states, it is clear that described embodiment is only part of the embodiment of the present invention, is not whole embodiments.
The embodiment of the present invention provides a kind of definite method of voice link parametric equalizer tuning parameter, in the method may be used It is responded according to default frequency response and/or target frequency, voice link parametric equalizer tuning parameter is automatically updated, is not required to Additional manual debugging voice link parametric equalizer is wanted, so user is not required to have any audio elementary knowledge and parameter testing Experience, debugging efficiency are high, and do not limit the parameter of number of frequency bands to be debugged and each frequency range to be debugged, can by relatively low exponent number or Less frequency range to be debugged obtains more accurate tuning parameter, improves the accuracy of definite tuning parameter.
It will be to determining that the realization process of voice link parametric equalizer tuning parameter illustrates below the embodiment of the present invention.
Fig. 3 show the embodiment of the present invention and provides a kind of realization flow of definite voice link parametric equalizer tuning parameter Figure.As shown in figure 3, including：
S101：Obtain the frequency response data to be debugged of voice signal and target frequency response in voice link.
S102：Determine that each frequency point in the frequency response data to be debugged is corresponded to Gain tuning rings for the target frequency The Gain tuning direction of the frequency point gain should be corresponded to.
In the embodiment of the present invention can by target frequency respond yield value with it is right in the frequency response data to be debugged Answer the difference made the difference between the yield value of frequency point, determine Gain tuning direction, if positive number then Gain tuning direction be to Upper adjustment, if negative, then Gain tuning direction is adjustment downwards.
For example, in Fig. 4, curve shown in solid characterizes frequency response data to be debugged, the characterization target frequency of curve shown in dotted line Rate, which responds, to be adjusted upward or adjusts downwards, it is necessary to which each frequency point in the frequency response data to be debugged is corresponded to gain, to adjust For the corresponding frequency point gain of target frequency response.In Fig. 4, direction shown in arrow represents Gain tuning direction, the increasing Beneficial adjustment direction includes adjusting upward and adjusting downwards.
S103：According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided.
In the embodiment of the present invention, adjustment threshold value can be set, each frequency point in the frequency response data to be debugged is corresponded to and is increased Frequency point conduct of the adjustment amount more than the threshold value that benefit is adjusted to the target frequency response correspondence frequency point gain needs to adjust The frequency point of examination, and the frequency point for needing to debug is divided at least one frequency range to be debugged.It can be by gain tune in the embodiment of the present invention Perfect square is divided into the frequency point of identical and adjacent setting quantity in same frequency range to be debugged, obtains at least one frequency to be debugged Section.Wherein, it is identical and adjacent to include Gain tuning direction for each frequency range to be debugged at least one frequency range to be debugged Setting quantity frequency point.
For example, it is a to set adjustment threshold value, a is positive integer, then by the yield value of target frequency response and the frequency to be debugged The difference corresponded in rate response data between the yield value of frequency point is divided at least one more than the frequency point of a and adjacent setting quantity A frequency range to be debugged, by yield value of the yield value of target frequency response with corresponding to frequency point in the frequency response data to be debugged Between difference be less than the frequency point of-a and adjacent setting quantity and be divided at least one frequency range to be debugged.
S104：For each frequency range to be debugged at least one frequency range to be debugged, voice link ginseng is selected respectively Measure the wave filter in balanced device.
It can be selected in the embodiment of the present invention according to the centre frequency of each frequency range to be debugged in voice link parametric equalizer Wave filter.
In the embodiment of the present invention, if the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, voice chain is selected Existing lower frame wave filter is as the filtering in the voice link parametric equalizer of the frequency range to be debugged in the parametric equalizer of road Device.
If the centre frequency of frequency range to be debugged is more than the highest frequency of setting, select in voice link parametric equalizer The overhead wave filter having is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged.
If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice less than setting Interval number of samples in link parametric equalizer between the centre frequency of existing peak filter is less than setting quantity, then selects In voice link parametric equalizer in voice link parametric equalizer of the existing peak filter as the frequency range to be debugged Wave filter.
If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice less than setting Interval number of samples in link parametric equalizer between the centre frequency of existing peak filter is more than setting quantity, then newly sets Put peak filter and using newly-installed peak filter as in the voice link parametric equalizer of the frequency range to be debugged Wave filter.
The low-limit frequency and highest frequency of the above-mentioned setting of the embodiment of the present invention, according to the actual frequency of voice signal respond into Row setting, such as narrow band voice signal, low-limit frequency can be 300HZ, and highest frequency can be 3400HZ.
S105：Determine the tuning parameter of the voice link parametric equalizer median filter.
In the embodiment of the present invention, if the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, can directly it adjust The tuning parameter of existing lower frame wave filter in voice link parametric equalizer, as frequency band speech link parametric equalization to be debugged Wave filter tuning parameter in device.If the centre frequency of frequency range to be debugged is more than the highest frequency of setting, language can be directly adjusted The tuning parameter of existing overhead wave filter in sound link parametric equalizer, as frequency band speech link parametric equalizer to be debugged In wave filter tuning parameter.
In the embodiment of the present invention, if the centre frequency of frequency range to be debugged is more than the low-limit frequency, less than setting most of setting High-frequency, then can according to the centre frequency of frequency range to be debugged with have in voice link parametric equalizer filter centre frequency it Between interval number of samples, determine the wave filter tuning parameter in frequency band speech link parametric equalizer to be debugged.
Fig. 5 show the centre frequency provided in an embodiment of the present invention that is directed to and is more than the low-limit frequency of setting, less than setting The frequency range to be debugged of highest frequency determines the implementation of the wave filter tuning parameter in frequency band speech link parametric equalizer to be debugged Flow chart.
S1051：According to the centre frequency of frequency range to be debugged and the center of the voice link parametric equalizer median filter Difference between frequency, it is determined whether can be by the frequency range to be debugged and the voice link parametric equalizer median filter Frequency range where centre frequency merges into same frequency range.
S1052a：It if can be by frequency where the frequency range and the voice link parametric equalizer median filter centre frequency Section merges into same frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalizer median filter Centre frequency of the average as the wave filter in the voice link parametric equalizer of the frequency range to be debugged between centre frequency, Gain and the voice link parametric equalizer median filter centre frequency pair are corresponded to the centre frequency of the frequency range to be debugged Answer the average between gain as the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged at Gain, the bandwidth between frequency section boundary frequency point after merging is in the voice link parametric equalizer of the frequency range to be debugged The desired bandwidth of wave filter.
S1052b：If can not will be where the frequency range and the voice link parametric equalizer median filter centre frequency Frequency range merges into same frequency range, then joins using the centre frequency of the frequency range to be debugged as the voice link of the frequency range to be debugged The centre frequency of the wave filter in balanced device is measured, gain is corresponded to as described to be debugged using the centre frequency of the frequency range to be debugged The gain at filter centre frequency in the voice link parametric equalizer of frequency range, with the frequency section boundary frequency point to be debugged Between bandwidth for the frequency range to be debugged voice link parametric equalizer in wave filter desired bandwidth.
The embodiment of the present invention can be responded according to target frequency, realized to voice link parametric equalizer by the above method Tuning parameter determines, the wave filter tuning parameter in additional manual debugging voice link parametric equalizer is not required, so User is not required to have any audio elementary knowledge and parameter testing experience, debugging efficiency is high, and does not limit band number to be debugged The parameter of amount and each frequency range to be debugged, can obtain more accurate tuning parameter by relatively low exponent number or less frequency range to be debugged, Improve the accuracy of definite tuning parameter.
In the embodiment of the present invention, for improve frequency response data to be debugged be adjusted to target frequency response accuracy and Operability, each frequency point corresponds to Gain tuning and responds corresponding institute for the target frequency in the frequency response data to be debugged State frequency point gain adjustment amount it is larger in the case of, first the frequency response data to be debugged can be adjusted to meet predeterminated frequency In the range of responding gain limitation, the frequency response data to be debugged for meeting frequency response limitation is obtained, then will meet frequency again Each frequency point of frequency response data to be debugged of rate response limitation corresponds to Gain tuning as the corresponding frequency of target frequency response Dot gains.In other words, above-described embodiment be related to according to target frequency in response to determining that voice link parametric equalizer tuning parameter Frequency response data to be debugged involved in process can be the frequency response data to be debugged for meeting frequency response limitation. It determines each frequency point in the frequency response data to be debugged corresponding to Gain tuning as the corresponding frequency of target frequency response During the Gain tuning direction of dot gains, each frequency point of frequency response data to be debugged for meeting frequency response limitation can be corresponded to gain The Gain tuning direction of the corresponding frequency point gain of target frequency response is adjusted to, as by the frequency response to be debugged Each frequency point corresponds to Gain tuning direction of the Gain tuning for the corresponding frequency point gain of target frequency response in data.
In the embodiment of the present invention, can voice link parametric equalizer tuning parameter be determined according to default frequency response.Its In, the default frequency response includes the frequency response upper limit and frequency response lower limit.It can will wait to adjust in the embodiment of the present invention Examination frequency response data is adjusted in the range of the frequency response gain limitation of the frequency response upper limit and the limitation of frequency response lower limit, And the frequency response for determining for frequency response data to be debugged to be adjusted to the frequency response upper limit and the limitation of frequency response lower limit increases During in the range of benefit limitation, the tuning parameter of selected each wave filter.
It below will be to according to default frequency response, determining the tuning parameter of voice link parametric equalizer median filter Realization process illustrates.
Fig. 6 show the realization of another definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention Process schematic.
S201：Obtain frequency response data to be debugged, the frequency response upper limit and the frequency of voice signal in voice link Respond lower limit.
It is illustrated in the embodiment of the present invention by taking frequency response shown in FIG. 1 as an example, wherein, Fig. 1 intermediate frequency dot gains are larger Frequency response for the frequency response upper limit, the smaller frequency response of frequency point gain is frequency response lower limit.
S202：Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process.
Registration process refers to registration process described in the embodiment of the present invention, wherein, it waits to adjust after first time registration process The maximum gain for trying frequency response data is equal to the least gain of the frequency response upper limit.
It should be noted that the maximum of the frequency response data to be debugged in the embodiment of the present invention after first time registration process Gain is also smaller than the least gain of the frequency response upper limit, but the frequency response data to be debugged after first time registration process Difference between the least gain of maximum gain and the frequency response upper limit need to be fixed value.
S203：Judge that the frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain and frequency response Whether difference is less than zero between lower limit corresponds to the frequency point gain.
If the frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain and frequency response lower limit pair Difference is more than zero between answering the frequency point gain, then does not deal with.
If the frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain and frequency response lower limit Difference is less than zero and less than given threshold between the corresponding frequency point gain, then is alignd using peak filter to the first time Treated, and frequency response data to be debugged carries out attenuation processing, until the frequency response data intermediate frequency to be debugged after attenuation processing Difference is more than the given threshold between the corresponding gain frequency point gain correspondings with frequency response lower limit of point, to avoid subsequently into Row is promoted in processing procedure and causes distorted signals.
In the embodiment of the present invention, still illustrated by taking the frequency response limitation of narrow band voice signal as an example, the present invention is implemented Attenuation processing can be carried out to the peak value frequency point between 300HZ~3400HZ, as shown in Figure 7 A in example.It is shown in solid in Fig. 7 A Frequency response is the frequency response data to be debugged before attenuation processing, and frequency response shown in dotted line is to be debugged after attenuation processing Frequency response data.Dmin represents that the frequency response data intermediate-frequeney point to be debugged after attenuation processing is corresponded under gain and frequency response Difference between the corresponding frequency point gain of limit.D0 represents the threshold value of setting.It, can be by adjacent setting quantity in attenuation process Frequency point merges into a frequency range, and attenuation processing is carried out using same peak filter.The embodiment of the present invention carries out attenuation processing Attenuation steps can be 1dB.
S204：It is less than the frequency response lower limit for the frequency response data intermediate frequency dot gains to be debugged after attenuation processing The frequency range to be debugged after each attenuation processing in frequency range to be debugged after at least one attenuation processing of corresponding frequency point gain, choosing The wave filter in voice link parametric equalizer is selected, carries out promotion processing, in the frequency response data to be debugged that promotes that treated Each frequency point corresponds to gain and is located in the range of the frequency response gain limitation that the frequency response upper limit is limited with frequency response lower limit.
For the filter in the Frequency Band Selection voice link parametric equalizer to be debugged after attenuation processing in the embodiment of the present invention The realization method of wave filter in the realization method of ripple device, with the selection voice link parametric equalizer involved in above-described embodiment Identical, details are not described herein.
Carried out in the embodiment of the present invention promoted processing process as shown in figure 8, including：
S2041：It is right for the second time that gain progress is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing Neat processing.
S2042：Judging the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is The no gain less than at the frequency response lower limit low frequency edge point.If the frequency response number to be debugged after second of registration process It is more than the gain at the frequency response lower limit low frequency edge point according to the gain at middle low frequency edge point, then does not handle.If second Gain in frequency response data to be debugged after secondary registration process at low frequency edge point is less than the frequency response lower limit low frequency Gain at boundary point then selects lower frame wave filter to carry out first to the frequency response data to be debugged after second of registration process Secondary promotion processing so that the gain at the frequency response data low frequency edge point to be debugged that promotes that treated for the first time is not less than institute State the gain at frequency response lower limit low frequency edge point.Fig. 7 B are shown using lower frame wave filter to frequency response data to be debugged Low frequency edge promoted the schematic diagram of processing, in Fig. 7 B, frequency response shown in dotted line is the frequency response that promotes that treated, To promote the frequency response of before processing, dlow represents low frequency edge point in frequency response data to be debugged for frequency response shown in solid The difference between gain at the gain at place and the frequency response lower limit low frequency edge point, at this point, frequency response number to be debugged According to the difference between the gain at middle low frequency edge point (300HZ) and the gain at frequency response lower limit low frequency edge point (300HZ) Value dlow<0.
S2043：Corresponds to gain progress the to each frequency point that first time is promoted in treated frequency response data to be debugged Registration process three times.
S2044：Judging the gain at the frequency response data medium-high frequency boundary point to be debugged after third time registration process is The no gain less than at the frequency response lower limit high-frequency boundary point.If the frequency response number to be debugged after third time registration process It is more than the gain at the frequency response lower limit high-frequency boundary point according to the gain at medium-high frequency boundary point, then does not handle.If the 3rd The gain at frequency response data medium-high frequency boundary point to be debugged after secondary registration process is less than the frequency response lower limit high frequency Gain at boundary point then selects overhead wave filter to carry out second to the frequency response data to be debugged after third time registration process Secondary promotion processing, the gain at the frequency response data medium-high frequency boundary point to be debugged that promotes that treated are more than the frequency response Gain at lower limit high-frequency boundary point.Fig. 7 C show the high-frequency boundary to frequency response data to be debugged using lower frame wave filter It carries out promoting treated schematic diagram.The high-frequency boundary (3400HZ) of treated frequency response data to be debugged is promoted in Fig. 7 C The difference dhigh between gain at the gain at place and the frequency response lower limit high-frequency boundary point (3400HZ)>0.
S2045：Each frequency point in the frequency response data to be debugged that promotes that treated to second corresponds to gain progress the Four registration process.
S2046：Judge to correspond to gain with the presence or absence of frequency point in the frequency response data to be debugged after the 4th registration process Less than the frequency point that the frequency response lower limit corresponds to frequency point gain.If being not present, do not deal with.If in the presence of to the 4th time Frequency response data intermediate-frequeney point to be debugged after registration process corresponds to gain and corresponds to frequency point gain less than the frequency response lower limit The frequency point at place selects peak filter to carry out third time promotion processing, until each frequency point corresponds in frequency response data to be debugged Gain tuning to meet predeterminated frequency response gain limitation in the range of.
In the embodiment of the present invention, the frequency response data intermediate-frequeney point to be debugged after the 4th registration process can be counted and correspond to increasing Benefit corresponds to all frequency points at frequency point gain less than the frequency response lower limit, and these frequency points are divided into multiple frequency ranges, Each frequency range includes the frequency point of adjacent setting quantity, at the center frequency point of each frequency range obtained in division peak value is set to filter Ripple device carries out promotion processing using peak filter to each frequency range, until each frequency point corresponds in frequency response data to be debugged Gain tuning to meet predeterminated frequency response gain limitation in the range of.Fig. 7 D show to utilize peak filter to be debugged Frequency range between the low frequency edge and high-frequency boundary of frequency response data promoted the schematic diagram of processing.In Fig. 7 D shown in dotted line Frequency response is promotes treated frequency response, and frequency response shown in solid is promotes the frequency response of before processing.
S205：Determine the tuning parameter of the voice link parametric equalizer median filter.
In the embodiment of the present invention, the specific implementation of the tuning parameter of voice link parametric equalizer median filter is determined Journey sees the realization of the tuning parameter of definite voice link parametric equalizer median filter involved in above-described embodiment Journey, details are not described herein.
The embodiment of the present invention can be realized according to default frequency response to voice link parametric equalization by the above method Device tuning parameter determines, the wave filter tuning parameter in additional manual debugging voice link parametric equalizer, institute is not required User to be not required to have any audio elementary knowledge and parameter testing experience, debugging efficiency is high, and does not limit frequency range to be debugged The parameter of quantity and each frequency range to be debugged can obtain more accurately debugging ginseng by relatively low exponent number or less frequency range to be debugged Number, improves the accuracy of definite tuning parameter.
Based on same inventive concept, a kind of definite voice link parametric equalizer debugging is additionally provided in the embodiment of the present invention The device of parameter, since the principle that the device solves the problems, such as and above-described embodiment and definite voice link parameter shown in the drawings are equal The functional method of weighing apparatus tuning parameter method is similar, therefore the implementation of the device may refer to the implementation of method, repeats part not It repeats again.
Fig. 9 show the structure of the device of definite voice link parametric equalizer tuning parameter provided in an embodiment of the present invention Schematic diagram, as shown in figure 9, determining the device of voice link parametric equalizer tuning parameter includes acquiring unit 101 and processing list Member 102.
In a kind of embodiment, acquiring unit 101, for obtaining the frequency response to be debugged of voice signal in voice link Data and target frequency response.Processing unit 102, for determining to correspond to each frequency point in the frequency response data to be debugged Gain tuning is the Gain tuning direction of the corresponding frequency point gain of target frequency response, and the Gain tuning direction includes It adjusts upward and adjusts downwards；According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided, wherein, it is described Each frequency range to be debugged at least one frequency range to be debugged includes the identical and adjacent setting quantity in Gain tuning direction Frequency point；For each frequency range to be debugged at least one frequency range to be debugged, voice link parametric equalizer is selected respectively In wave filter, and determine the voice link parametric equalizer median filter tuning parameter.
In another embodiment, acquiring unit 101 is rung for obtaining the frequency to be debugged of voice signal in voice link Answer data, the frequency response upper limit and frequency response lower limit.Processing unit 102, for the frequency response data to be debugged In each frequency point correspond to gain carry out first time registration process, wherein, the frequency response number to be debugged after first time registration process According to maximum gain be equal to the frequency response upper limit least gain；Frequency response data to be debugged after first time registration process Difference is less than zero and less than given threshold situation between intermediate-frequeney point corresponds to the gain frequency point gain corresponding with frequency response lower limit Under, attenuation processing is carried out to the frequency response data to be debugged after the first time registration process using peak filter, until Frequency response data intermediate-frequeney point to be debugged after attenuation processing correspond to the gain frequency point gain corresponding with frequency response lower limit it Between difference be more than given threshold；It is rung for the frequency response data intermediate frequency dot gains to be debugged after attenuation processing less than the frequency Answer lower limit correspond at least one attenuation processing of frequency point gain after frequency range to be debugged in each attenuation processing after it is to be debugged Frequency range selects the wave filter in voice link parametric equalizer, carries out promotion processing, the frequency response to be debugged that promotes that treated Each frequency point corresponds to gain and is located in the gain ranging that the frequency response upper limit is limited with frequency response lower limit in data；Determine institute's predicate The tuning parameter of sound link parametric equalizer median filter.
Wherein, the processing unit 102 is determined in the following way by each frequency point in the frequency response data to be debugged Corresponding Gain tuning corresponds to the Gain tuning direction of the frequency point gain for target frequency response：
By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, obtain To the frequency response data to be debugged for meeting frequency response limitation；It determines that the frequency response to be debugged of frequency response limitation will be met Each frequency point of data corresponds to Gain tuning direction of the Gain tuning for the frequency point gain of target frequency response correspondence, as general Each frequency point corresponds to Gain tuning as the corresponding frequency point gain of target frequency response in the frequency response data to be debugged Gain tuning direction.
Wherein, the processing unit 102, in the following way by the frequency response data Gain tuning to be debugged to completely In the range of sufficient predeterminated frequency response gain limitation, the frequency response data to be debugged for meeting frequency response limitation is obtained：
Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, the The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；First Frequency response data intermediate-frequeney point to be debugged after secondary registration process corresponds to the gain frequency point gain corresponding with frequency response lower limit Between difference be less than zero and less than in the case of given threshold, using peak filter to waiting to adjust after the first time registration process Try frequency response data carry out attenuation processing, until attenuation processing after frequency response data intermediate-frequeney point to be debugged corresponds to gain and Difference is more than given threshold between frequency response lower limit corresponds to the frequency point gain；It is rung for the frequency to be debugged after attenuation processing Answer data intermediate frequency dot gains be less than the frequency response lower limit correspond to it is to be debugged after at least one attenuation processing of frequency point gain The frequency range to be debugged after each attenuation processing in frequency range selects the wave filter in voice link parametric equalizer, is promoted Processing, until promoted each frequency point in treated frequency response data to be debugged corresponds to gain be located at the frequency response upper limit and In the range of the frequency response gain limitation of the frequency response lower limit limitation.
Wherein, the processing unit 102, in the following way in the frequency response data to be debugged after attenuation processing Frequency point gain is less than in the frequency range to be debugged after the frequency response lower limit corresponds at least one attenuation processing of frequency point gain Frequency range to be debugged after each attenuation processing selects the wave filter in voice link parametric equalizer, carries out promotion processing：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, is carried out using peak filter at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
Wherein, the processing unit 102 selects the wave filter in voice link parametric equalizer in the following way：
If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select in voice link parametric equalizer Some lower frame wave filters are as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；If frequency range to be debugged Centre frequency is more than the highest frequency of setting, then selects in voice link parametric equalizer existing overhead wave filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be less than setting quantity, then select in voice link parametric equalizer existing peak filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be more than setting quantity, then newly set and peak filter and treat newly-installed peak filter as described in Debug the wave filter in the voice link parametric equalizer of frequency range.
Wherein, the processing unit 102 determines the voice link parametric equalizer median filter in the following way Tuning parameter：
According to the centre frequency of the centre frequency of frequency range to be debugged and the voice link parametric equalizer median filter it Between difference, it is determined whether can be by the center frequency of the frequency range to be debugged and the voice link parametric equalizer median filter Frequency range where rate merges into same frequency range；It if can be by the frequency range and the voice link parametric equalizer median filter center Frequency range where frequency merges into same frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalization Average between device median filter centre frequency is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged Centre frequency, gain and the voice link parametric equalizer median filter are corresponded to the centre frequency of the frequency range to be debugged Centre frequency corresponds to average between gain as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged Gain at frequency of heart, bandwidth between frequency section boundary frequency point after merging is the voice link parameter of the frequency range to be debugged The desired bandwidth of wave filter in balanced device.It if can not be by the frequency range and the voice link parametric equalizer median filter Frequency range where centre frequency merges into same frequency range, then using the centre frequency of the frequency range to be debugged as the frequency range to be debugged Voice link parametric equalizer in wave filter centre frequency, with the centre frequency of the frequency range to be debugged correspond to gain make For the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, with the frequency to be debugged Bandwidth between section boundary frequency point is the expectation band of the wave filter in the voice link parametric equalizer of the frequency range to be debugged It is wide.
Voice link parametric equalizer tuning parameter is determined described in specific implementation process can be balanced device, this hair To of the invention real by taking the device of the definite voice link parametric equalizer tuning parameter is balanced device as an example below bright embodiment Apply the hardware configuration of the device of the definite voice link parametric equalizer tuning parameter of example offer, processing mode is said It is bright.
In example shown in Fig. 10, the device of the definite voice link parametric equalizer tuning parameter includes：Processor 1001 and memory 1002.
Memory 1002, for storing the program code of the execution of processor 1001.
Processor 1001, the program code for memory 1002 to be called to store implement function such as：
In a kind of embodiment, processor 1001, obtain voice link in voice signal frequency response data to be debugged And target frequency response.It determines each frequency point in the frequency response data to be debugged corresponding to Gain tuning as target frequency The Gain tuning direction of the corresponding frequency point gain of rate response, the Gain tuning direction include adjusting upward and adjusting downwards； According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided, wherein, at least one frequency range to be debugged Each frequency range to be debugged include the frequency point of the identical and adjacent setting quantity in Gain tuning direction；For described at least one Each frequency range to be debugged in frequency range to be debugged selects the wave filter in voice link parametric equalizer respectively, and determines described The tuning parameter of voice link parametric equalizer median filter.
In another embodiment, processor 1001, obtain voice link in voice signal frequency response number to be debugged According to, the frequency response upper limit and frequency response lower limit.Each frequency point in the frequency response data to be debugged is corresponded to gain into Row first time registration process, wherein, the maximum gain of the frequency response data to be debugged after first time registration process is equal to frequency Respond the least gain of the upper limit；Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain and frequency Difference is less than zero and is less than in the case of given threshold between response lower limit corresponds to the frequency point gain, using peak filter to institute It states the frequency response data to be debugged after first time registration process and carries out attenuation processing, until the frequency to be debugged after attenuation processing Difference is more than given threshold between response data intermediate-frequeney point corresponds to the gain frequency point gain corresponding with frequency response lower limit；For Frequency response data intermediate frequency dot gains to be debugged after attenuation processing correspond to frequency point gain extremely less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after a few attenuation processing, selects voice link parameter equal Wave filter in weighing apparatus, carries out promotion processing, and each frequency point corresponds to gain position in the frequency response data to be debugged that promotes that treated In in the frequency response upper limit and the gain ranging of frequency response lower limit limitation；It determines to filter in the voice link parametric equalizer The tuning parameter of device.
Wherein, the processor 1001 is determined in the following way by each frequency point in the frequency response data to be debugged Corresponding Gain tuning corresponds to the Gain tuning direction of the frequency point gain for target frequency response：
By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, obtain To the frequency response data to be debugged for meeting frequency response limitation；It determines that the frequency response to be debugged of frequency response limitation will be met Each frequency point of data corresponds to Gain tuning direction of the Gain tuning for the frequency point gain of target frequency response correspondence, as general Each frequency point corresponds to Gain tuning as the corresponding frequency point gain of target frequency response in the frequency response data to be debugged Gain tuning direction.
Wherein, the processor 1001, in the following way by the frequency response data Gain tuning to be debugged to completely In the range of sufficient predeterminated frequency response gain limitation, the frequency response data to be debugged for meeting frequency response limitation is obtained：
Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, the The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；First Frequency response data intermediate-frequeney point to be debugged after secondary registration process corresponds to the gain frequency point gain corresponding with frequency response lower limit Between difference be less than zero and less than in the case of given threshold, using peak filter to waiting to adjust after the first time registration process Try frequency response data carry out attenuation processing, until attenuation processing after frequency response data intermediate-frequeney point to be debugged corresponds to gain and Difference is more than given threshold between frequency response lower limit corresponds to the frequency point gain；It is rung for the frequency to be debugged after attenuation processing Answer data intermediate frequency dot gains be less than the frequency response lower limit correspond to it is to be debugged after at least one attenuation processing of frequency point gain The frequency range to be debugged after each attenuation processing in frequency range selects the wave filter in voice link parametric equalizer, is promoted Processing, until promoted each frequency point in treated frequency response data to be debugged corresponds to gain be located at the frequency response upper limit and In the range of the frequency response gain limitation of the frequency response lower limit limitation.
Wherein, the processor 1001, in the following way in the frequency response data to be debugged after attenuation processing Frequency point gain is less than in the frequency range to be debugged after the frequency response lower limit corresponds at least one attenuation processing of frequency point gain Frequency range to be debugged after each attenuation processing selects the wave filter in voice link parametric equalizer, carries out promotion processing：
Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process； If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is less than under the frequency response Limit low frequency edge point at gain, then select lower frame wave filter to the frequency response data to be debugged after second of registration process into Row first time promotion is handled；Gain progress is corresponded to each frequency point that first time is promoted in treated frequency response data to be debugged Third time registration process；If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is less than Gain at the frequency response lower limit high-frequency boundary point, then select overhead wave filter to be debugged after third time registration process Frequency response data carries out second of promotion processing；Each frequency in the frequency response data to be debugged that promotes that treated to second The corresponding gain of point carries out the 4th registration process；Frequency response data intermediate-frequeney point to be debugged after 4th registration process is corresponded to Gain corresponds to the frequency point at frequency point gain less than the frequency response lower limit, is carried out using peak filter at third time promotion Reason, until each frequency point corresponds to Gain tuning to the scope for meeting predeterminated frequency response gain limitation in frequency response data to be debugged It is interior.
Wherein, the processor 1001 selects the wave filter in voice link parametric equalizer in the following way：
If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select in voice link parametric equalizer Some lower frame wave filters are as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；If frequency range to be debugged Centre frequency is more than the highest frequency of setting, then selects in voice link parametric equalizer existing overhead wave filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be less than setting quantity, then select in voice link parametric equalizer existing peak filter as described in Wave filter in the voice link parametric equalizer of frequency range to be debugged；If the centre frequency of frequency range to be debugged is more than the minimum of setting Frequency, less than setting highest frequency and with the centre frequency of existing peak filter in voice link parametric equalizer it Between interval number of samples be more than setting quantity, then newly set and peak filter and treat newly-installed peak filter as described in Debug the wave filter in the voice link parametric equalizer of frequency range.
Wherein, the processor 1001 determines the voice link parametric equalizer median filter in the following way Tuning parameter：
According to the centre frequency of the centre frequency of frequency range to be debugged and the voice link parametric equalizer median filter it Between difference, it is determined whether can be by the center frequency of the frequency range to be debugged and the voice link parametric equalizer median filter Frequency range where rate merges into same frequency range；It if can be by the frequency range and the voice link parametric equalizer median filter center Frequency range where frequency merges into same frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalization Average between device median filter centre frequency is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged Centre frequency, gain and the voice link parametric equalizer median filter are corresponded to the centre frequency of the frequency range to be debugged Centre frequency corresponds to average between gain as in the wave filter in the voice link parametric equalizer of the frequency range to be debugged Gain at frequency of heart, bandwidth between frequency section boundary frequency point after merging is the voice link parameter of the frequency range to be debugged The desired bandwidth of wave filter in balanced device.It if can not be by the frequency range and the voice link parametric equalizer median filter Frequency range where centre frequency merges into same frequency range, then using the centre frequency of the frequency range to be debugged as the frequency range to be debugged Voice link parametric equalizer in wave filter centre frequency, with the centre frequency of the frequency range to be debugged correspond to gain make For the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, with the frequency to be debugged Bandwidth between section boundary frequency point is the expectation band of the wave filter in the voice link parametric equalizer of the frequency range to be debugged It is wide.
It, need not be additional by the embodiment of the present invention, it can be achieved that being determined to voice link parametric equalizer tuning parameter Manual debugging voice link parametric equalizer in wave filter tuning parameter, so user is not required to have any audio elementary to know Knowledge and parameter testing experience, debugging efficiency is high, and does not limit the parameter of number of frequency bands to be debugged and each frequency range to be debugged, can lead to It crosses relatively low exponent number or less frequency range to be debugged obtains more accurate tuning parameter, improve the accurate of definite tuning parameter Degree.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these modification and variations.

Claims (20)

  1. A kind of 1. method of definite voice link parametric equalizer tuning parameter, which is characterized in that including：
    Obtain the frequency response data to be debugged of voice signal and target frequency response in voice link；
    Determine that each frequency point in the frequency response data to be debugged is corresponded to Gain tuning responds corresponding institute for the target frequency The Gain tuning direction of frequency point gain is stated, the Gain tuning direction includes adjusting upward and adjusting downwards；
    According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is determined, wherein, at least one frequency to be debugged Each frequency range to be debugged in section includes the frequency point of the identical and adjacent setting quantity in Gain tuning direction；
    For each frequency range to be debugged at least one frequency range to be debugged, select respectively in voice link parametric equalizer Wave filter, and determine the voice link parametric equalizer median filter tuning parameter.
  2. 2. the method as described in claim 1, which is characterized in that determine each frequency point pair in the frequency response data to be debugged Gain tuning direction of the Gain tuning for the corresponding frequency point gain of target frequency response is answered, including：
    By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, expired The frequency response data to be debugged of sufficient frequency response limitation；
    Each frequency point of frequency response data to be debugged for meeting frequency response limitation is corresponded to Gain tuning to ring for the target frequency The Gain tuning direction of the frequency point gain should be corresponded to, gain is corresponded to as by each frequency point in the frequency response data to be debugged It is adjusted to the Gain tuning direction of the corresponding frequency point gain of target frequency response.
  3. 3. method as claimed in claim 2, which is characterized in that by the frequency response data Gain tuning to be debugged to satisfaction In the range of predeterminated frequency response gain limitation, the frequency response data to be debugged for meeting frequency response limitation is obtained, including：
    Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, for the first time The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；
    Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain institute corresponding with frequency response lower limit State difference between frequency point gain and be less than zero and less than in the case of given threshold, using peak filter to the first time alignment at Frequency response data to be debugged after reason carries out attenuation processing, until the frequency response data intermediate-frequeney point to be debugged after attenuation processing Difference is more than given threshold between the corresponding gain frequency point gain corresponding with frequency response lower limit；
    For the frequency response data intermediate frequency dot gains to be debugged after attenuation processing frequency point is corresponded to less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after at least one attenuation processing of gain selects voice chain Wave filter in the parametric equalizer of road carries out promotion processing, until promoting each frequency in treated frequency response data to be debugged The corresponding gain of point is located in the range of the frequency response gain limitation that the frequency response upper limit is limited with the frequency response lower limit.
  4. 4. method as claimed in claim 3, which is characterized in that for the frequency response data intermediate frequency to be debugged after attenuation processing Dot gains are less than every in the frequency range to be debugged after the frequency response lower limit corresponds at least one attenuation processing of frequency point gain Frequency range to be debugged after one attenuation processing selects the wave filter in voice link parametric equalizer, carries out promotion processing, including：
    Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process；
    If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is rung less than the frequency The gain at lower limit low frequency edge point is answered, then selects lower frame wave filter to the frequency response number to be debugged after second of registration process According to progress first time promotion processing；
    Each frequency point that first time is promoted in treated frequency response data to be debugged is corresponded at gain progress third time alignment Reason；
    If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is rung less than the frequency The gain at lower limit high-frequency boundary point is answered, then selects overhead wave filter to the frequency response number to be debugged after third time registration process According to second of promotion processing of progress；
    Each frequency point in the frequency response data to be debugged that promotes that treated to second corresponds to gain and carries out at the 4th alignment Reason；
    Gain is corresponded to the frequency response data intermediate-frequeney point to be debugged after the 4th registration process less than the frequency response lower limit Frequency point at corresponding frequency point gain carries out third time promotion processing, until frequency response data to be debugged using peak filter In each frequency point correspond to Gain tuning to meet predeterminated frequency response gain limitation in the range of.
  5. 5. such as Claims 1-4 any one of them method, which is characterized in that the filter in selection voice link parametric equalizer Ripple device, including：
    If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select existing in voice link parametric equalizer Lower frame wave filter is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；
    If the centre frequency of frequency range to be debugged is more than the highest frequency of setting, select existing in voice link parametric equalizer Overhead wave filter is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；
    If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice link less than setting Interval number of samples in parametric equalizer between the centre frequency of existing peak filter is less than setting quantity, then selects voice Existing peak filter is as the filter in the voice link parametric equalizer of the frequency range to be debugged in link parametric equalizer Ripple device；
    If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice link less than setting Interval number of samples in parametric equalizer between the centre frequency of existing peak filter is more than setting quantity, then newly sets peak Value filter and using newly-installed peak filter as the filtering in the voice link parametric equalizer of the frequency range to be debugged Device.
  6. 6. such as method described in any one of claim 1 to 5, which is characterized in that determine in the voice link parametric equalizer The tuning parameter of wave filter, including：
    According between the centre frequency of frequency range to be debugged and the centre frequency of the voice link parametric equalizer median filter Difference, it is determined whether can be by the frequency range to be debugged and the centre frequency institute of the voice link parametric equalizer median filter Same frequency range is merged into frequency range；
    If frequency range where the frequency range and the voice link parametric equalizer median filter centre frequency can be merged into together One frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalizer median filter centre frequency it Between centre frequency of the average as the wave filter in the voice link parametric equalizer of the frequency range to be debugged, wait to adjust with described The centre frequency of examination frequency range corresponds to gain and the voice link parametric equalizer median filter centre frequency is corresponded between gain Average as the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, to merge The bandwidth between frequency section boundary frequency point is the phase of the wave filter in the voice link parametric equalizer of the frequency range to be debugged afterwards Hope bandwidth；
    If the frequency range and frequency range where the voice link parametric equalizer median filter centre frequency can not be merged into Same frequency range, then using the centre frequency of the frequency range to be debugged as the voice link parametric equalizer of the frequency range to be debugged in Wave filter centre frequency, gain is corresponded to as the voice of the frequency range to be debugged using the centre frequency of the frequency range to be debugged The gain at filter centre frequency in link parametric equalizer, with the bandwidth between the frequency section boundary frequency point to be debugged For the desired bandwidth of the wave filter in the voice link parametric equalizer of the frequency range to be debugged.
  7. A kind of 7. method of definite voice link parametric equalizer tuning parameter, which is characterized in that including：
    Obtain frequency response data to be debugged, the frequency response upper limit and the frequency response lower limit of voice signal in voice link；
    Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, for the first time The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；
    Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain institute corresponding with frequency response lower limit State difference between frequency point gain and be less than zero and less than in the case of given threshold, using peak filter to the first time alignment at Frequency response data to be debugged after reason carries out attenuation processing, until the frequency response data intermediate-frequeney point to be debugged after attenuation processing Difference is more than given threshold between the corresponding gain frequency point gain corresponding with frequency response lower limit；
    For the frequency response data intermediate frequency dot gains to be debugged after attenuation processing frequency point is corresponded to less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after at least one attenuation processing of gain selects voice chain Wave filter in the parametric equalizer of road, carries out promotion processing, each frequency point pair in the frequency response data to be debugged that promotes that treated Gain is answered to be located in the range of the frequency response gain limitation that the frequency response upper limit is limited with frequency response lower limit；
    Determine the tuning parameter of the voice link parametric equalizer median filter.
  8. 8. the method for claim 7, which is characterized in that for the frequency response data intermediate frequency to be debugged after attenuation processing Dot gains are less than every in the frequency range to be debugged after the frequency response lower limit corresponds at least one attenuation processing of frequency point gain Frequency range to be debugged after one attenuation processing selects the wave filter in voice link parametric equalizer, including：
    Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process；
    If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is rung less than the frequency The gain at lower limit low frequency edge point is answered, then selects lower frame wave filter to the frequency response number to be debugged after second of registration process According to progress first time promotion processing；
    Each frequency point that first time is promoted in treated frequency response data to be debugged is corresponded at gain progress third time alignment Reason；
    If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is rung less than the frequency The gain at lower limit high-frequency boundary point is answered, then selects overhead wave filter to the frequency response number to be debugged after third time registration process According to second of promotion processing of progress；
    Each frequency point in the frequency response data to be debugged that promotes that treated to second corresponds to gain and carries out at the 4th alignment Reason；
    Gain is corresponded to the frequency response data intermediate-frequeney point to be debugged after the 4th registration process less than the frequency response lower limit Frequency point at corresponding frequency point gain, selects peak filter to carry out third time promotion processing, until frequency response data to be debugged In each frequency point correspond to Gain tuning to meet predeterminated frequency response gain limitation in the range of.
  9. 9. method as claimed in claim 7 or 8, which is characterized in that the wave filter in selection voice link parametric equalizer, bag It includes：
    If the centre frequency of the frequency range to be debugged after attenuation processing is less than the low-limit frequency of setting, select voice link parameter equal In weighing apparatus in voice link parametric equalizer of the existing lower frame wave filter as the frequency range to be debugged after the attenuation processing Wave filter；
    If the centre frequency of the frequency range to be debugged after attenuation processing is more than the highest frequency of setting, select voice link parameter equal In weighing apparatus in voice link parametric equalizer of the existing overhead wave filter as the frequency range to be debugged after the attenuation processing Wave filter；
    If the centre frequency of the frequency range to be debugged after attenuation processing be more than setting low-limit frequency, less than setting highest frequency, And the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer is less than setting number Amount then selects in voice link parametric equalizer existing peak filter as the frequency range to be debugged after the attenuation processing Wave filter in voice link parametric equalizer；
    If the centre frequency of the frequency range to be debugged after attenuation processing be more than setting low-limit frequency, less than setting highest frequency, And the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer is more than setting number Amount then newly sets peak filter and using newly-installed peak filter as the language of the frequency range to be debugged after the attenuation processing Wave filter in sound link parametric equalizer.
  10. 10. such as claim 7 to 9 any one of them method, which is characterized in that described to determine the voice link parametric equalization The tuning parameter of device median filter, including：
    According to the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link parametric equalizer median filter Centre frequency between difference, it is determined whether the frequency range to be debugged after the attenuation processing and the voice link can be joined Frequency range where measuring the centre frequency of balanced device median filter merges into same frequency range；
    If frequency range where the frequency range and the voice link parametric equalizer median filter centre frequency can be merged into together One frequency range, then to be filtered in the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link parametric equalizer Average between device centre frequency is as the filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing The centre frequency of ripple device corresponds to gain with the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link is joined Amount balanced device median filter centre frequency corresponds to language of the average as the frequency range to be debugged after the attenuation processing between gain The gain at filter centre frequency in sound link parametric equalizer, bandwidth using after merging between frequency section boundary frequency point as The desired bandwidth of wave filter in the voice link parametric equalizer of frequency range to be debugged after the attenuation processing；
    If the frequency range and frequency range where the voice link parametric equalizer median filter centre frequency can not be merged into Same frequency range, then using the centre frequency of the frequency range to be debugged after the attenuation processing as the frequency to be debugged after the attenuation processing The centre frequency of wave filter in the voice link parametric equalizer of section, with the center of the frequency range to be debugged after the attenuation processing Frequency corresponds to gain as the filter center in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Gain at frequency, after bandwidth between the frequency section boundary frequency point to be debugged after the attenuation processing is the attenuation processing Frequency range to be debugged voice link parametric equalizer in wave filter desired bandwidth.
  11. 11. a kind of device of definite voice link parametric equalizer tuning parameter, which is characterized in that including：
    Acquiring unit, for obtaining the frequency response data to be debugged of voice signal and target frequency response in voice link；
    Processing unit, for determining each frequency point in the frequency response data to be debugged corresponding to Gain tuning as target frequency The Gain tuning direction of the corresponding frequency point gain of rate response, the Gain tuning direction include adjusting upward and adjusting downwards； According to the Gain tuning direction of each frequency point, at least one frequency range to be debugged is divided, wherein, at least one frequency range to be debugged Each frequency range to be debugged include the frequency point of the identical and adjacent setting quantity in Gain tuning direction；For described at least one Each frequency range to be debugged in frequency range to be debugged selects the wave filter in voice link parametric equalizer respectively, and determines described The tuning parameter of voice link parametric equalizer median filter.
  12. 12. device as claimed in claim 11, which is characterized in that the processing unit is determined in the following way by described in Each frequency point corresponds to increasing of the Gain tuning for the corresponding frequency point gain of target frequency response in frequency response data to be debugged Beneficial adjustment direction：
    By the frequency response data Gain tuning to be debugged in the range of meeting predeterminated frequency response gain limitation, expired The frequency response data to be debugged of sufficient frequency response limitation；
    It determines each frequency point of frequency response data to be debugged for meeting frequency response limitation corresponding to Gain tuning as target frequency The Gain tuning direction of the corresponding frequency point gain of rate response, corresponds to as by each frequency point in the frequency response data to be debugged Gain tuning corresponds to the Gain tuning direction of the frequency point gain for target frequency response.
  13. 13. device as claimed in claim 12, which is characterized in that the processing unit is waited to adjust by described in the following way Examination frequency response data Gain tuning obtains meeting frequency response limitation in the range of meeting predeterminated frequency response gain limitation Frequency response data to be debugged：
    Gain is corresponded to each frequency point in the frequency response data to be debugged and carries out first time registration process, wherein, for the first time The maximum gain of frequency response data to be debugged after registration process is equal to the least gain of the frequency response upper limit；
    Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain institute corresponding with frequency response lower limit State difference between frequency point gain and be less than zero and less than in the case of given threshold, using peak filter to the first time alignment at Frequency response data to be debugged after reason carries out attenuation processing, until the frequency response data intermediate-frequeney point to be debugged after attenuation processing Difference is more than given threshold between the corresponding gain frequency point gain corresponding with frequency response lower limit；
    For the frequency response data intermediate frequency dot gains to be debugged after attenuation processing frequency point is corresponded to less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after at least one attenuation processing of gain selects voice chain Wave filter in the parametric equalizer of road carries out promotion processing, until promoting each frequency in treated frequency response data to be debugged The corresponding gain of point is located in the range of the frequency response gain limitation that the frequency response upper limit is limited with the frequency response lower limit.
  14. 14. device as claimed in claim 13, which is characterized in that the processing unit, in the following way at attenuation Frequency response data intermediate frequency dot gains to be debugged after reason correspond at least one of frequency point gain less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after attenuation processing is selected in voice link parametric equalizer Wave filter, carry out promotion processing：
    Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process；
    If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is rung less than the frequency The gain at lower limit low frequency edge point is answered, then selects lower frame wave filter to the frequency response number to be debugged after second of registration process According to progress first time promotion processing；
    Each frequency point that first time is promoted in treated frequency response data to be debugged is corresponded at gain progress third time alignment Reason；
    If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is rung less than the frequency The gain at lower limit high-frequency boundary point is answered, then selects overhead wave filter to the frequency response number to be debugged after third time registration process According to second of promotion processing of progress；
    Each frequency point in the frequency response data to be debugged that promotes that treated to second corresponds to gain and carries out at the 4th alignment Reason；
    Gain is corresponded to the frequency response data intermediate-frequeney point to be debugged after the 4th registration process less than the frequency response lower limit Frequency point at corresponding frequency point gain carries out third time promotion processing, until frequency response data to be debugged using peak filter In each frequency point correspond to Gain tuning to meet predeterminated frequency response gain limitation in the range of.
  15. 15. such as claim 11 to 14 any one of them device, which is characterized in that the processing unit, in the following way Select the wave filter in voice link parametric equalizer：
    If the centre frequency of frequency range to be debugged is less than the low-limit frequency of setting, select existing in voice link parametric equalizer Lower frame wave filter is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；
    If the centre frequency of frequency range to be debugged is more than the highest frequency of setting, select existing in voice link parametric equalizer Overhead wave filter is as the wave filter in the voice link parametric equalizer of the frequency range to be debugged；
    If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice link less than setting Interval number of samples in parametric equalizer between the centre frequency of existing peak filter is less than setting quantity, then selects voice Existing peak filter is as the filter in the voice link parametric equalizer of the frequency range to be debugged in link parametric equalizer Ripple device；
    If the centre frequency of frequency range to be debugged is more than the low-limit frequency of setting, highest frequency and and voice link less than setting Interval number of samples in parametric equalizer between the centre frequency of existing peak filter is more than setting quantity, then newly sets peak Value filter and using newly-installed peak filter as the filtering in the voice link parametric equalizer of the frequency range to be debugged Device.
  16. 16. such as claim 11 to 15 any one of them device, which is characterized in that the processing unit, in the following way Determine the tuning parameter of the voice link parametric equalizer median filter：
    According between the centre frequency of frequency range to be debugged and the centre frequency of the voice link parametric equalizer median filter Difference, it is determined whether can be by the frequency range to be debugged and the centre frequency institute of the voice link parametric equalizer median filter Same frequency range is merged into frequency range；
    If frequency range where the frequency range and the voice link parametric equalizer median filter centre frequency can be merged into together One frequency range, then with the centre frequency of the frequency range to be debugged and the voice link parametric equalizer median filter centre frequency it Between centre frequency of the average as the wave filter in the voice link parametric equalizer of the frequency range to be debugged, wait to adjust with described The centre frequency of examination frequency range corresponds to gain and the voice link parametric equalizer median filter centre frequency is corresponded between gain Average as the gain at the filter centre frequency in the voice link parametric equalizer of the frequency range to be debugged, to merge The bandwidth between frequency section boundary frequency point is the phase of the wave filter in the voice link parametric equalizer of the frequency range to be debugged afterwards Hope bandwidth；
    If the frequency range and frequency range where the voice link parametric equalizer median filter centre frequency can not be merged into Same frequency range, then using the centre frequency of the frequency range to be debugged as the voice link parametric equalizer of the frequency range to be debugged in Wave filter centre frequency, gain is corresponded to as the voice of the frequency range to be debugged using the centre frequency of the frequency range to be debugged The gain at filter centre frequency in link parametric equalizer, with the bandwidth between the frequency section boundary frequency point to be debugged For the desired bandwidth of the wave filter in the voice link parametric equalizer of the frequency range to be debugged.
  17. 17. a kind of device of definite voice link parametric equalizer tuning parameter, which is characterized in that including：
    Acquiring unit, for obtain the frequency response data to be debugged of voice signal in voice link, the frequency response upper limit and Frequency response lower limit；
    Processing unit is carried out for corresponding to gain to each frequency point in the frequency response data to be debugged at first time alignment Reason, wherein, the maximum gain of the frequency response data to be debugged after first time registration process is equal to the minimum of the frequency response upper limit Gain；Frequency response data intermediate-frequeney point to be debugged after first time registration process corresponds to gain institute corresponding with frequency response lower limit State difference between frequency point gain and be less than zero and less than in the case of given threshold, using peak filter to the first time alignment at Frequency response data to be debugged after reason carries out attenuation processing, until the frequency response data intermediate-frequeney point to be debugged after attenuation processing Difference is more than given threshold between the corresponding gain frequency point gain corresponding with frequency response lower limit；For treating after attenuation processing Debugging frequency response data intermediate frequency dot gains are less than at least one attenuation processing that the frequency response lower limit corresponds to frequency point gain The frequency range to be debugged after each attenuation processing in frequency range to be debugged afterwards selects the filtering in voice link parametric equalizer Device, carries out promotion processing, and each frequency point corresponds to gain and is located in frequency response in the frequency response data to be debugged that promotes that treated In the gain ranging that limit is limited with frequency response lower limit；Determine the debugging ginseng of the voice link parametric equalizer median filter Number.
  18. 18. device as claimed in claim 17, which is characterized in that the processing unit, in the following way at attenuation Frequency response data intermediate frequency dot gains to be debugged after reason correspond at least one of frequency point gain less than the frequency response lower limit The frequency range to be debugged after each attenuation processing in frequency range to be debugged after attenuation processing is selected in voice link parametric equalizer Wave filter：
    Gain is corresponded to each frequency point in the frequency response data to be debugged after attenuation processing and carries out second of registration process；
    If the gain in the frequency response data to be debugged after second of registration process at low frequency edge point is rung less than the frequency The gain at lower limit low frequency edge point is answered, then selects lower frame wave filter to the frequency response number to be debugged after second of registration process According to progress first time promotion processing；
    Each frequency point that first time is promoted in treated frequency response data to be debugged is corresponded at gain progress third time alignment Reason；
    If the gain at frequency response data medium-high frequency boundary point to be debugged after third time registration process is rung less than the frequency The gain at lower limit high-frequency boundary point is answered, then selects overhead wave filter to the frequency response number to be debugged after third time registration process According to second of promotion processing of progress；
    Each frequency point in the frequency response data to be debugged that promotes that treated to second corresponds to gain and carries out at the 4th alignment Reason；
    Gain is corresponded to the frequency response data intermediate-frequeney point to be debugged after the 4th registration process less than the frequency response lower limit Frequency point at corresponding frequency point gain, selects peak filter to carry out third time promotion processing, until frequency response data to be debugged In each frequency point correspond to Gain tuning to meet predeterminated frequency response gain limitation in the range of.
  19. 19. the device as described in claim 17 or 18, which is characterized in that the processing unit selects language in the following way Wave filter in sound link parametric equalizer：
    If the centre frequency of the frequency range to be debugged after attenuation processing is less than the low-limit frequency of setting, select voice link parameter equal In weighing apparatus in voice link parametric equalizer of the existing lower frame wave filter as the frequency range to be debugged after the attenuation processing Wave filter；
    If the centre frequency of the frequency range to be debugged after attenuation processing is more than the highest frequency of setting, select voice link parameter equal In weighing apparatus in voice link parametric equalizer of the existing overhead wave filter as the frequency range to be debugged after the attenuation processing Wave filter；
    If the centre frequency of the frequency range to be debugged after attenuation processing be more than setting low-limit frequency, less than setting highest frequency, And the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer is less than setting number Amount then selects in voice link parametric equalizer existing peak filter as the frequency range to be debugged after the attenuation processing Wave filter in voice link parametric equalizer；
    If the centre frequency of the frequency range to be debugged after attenuation processing be more than setting low-limit frequency, less than setting highest frequency, And the interval number of samples between the centre frequency of existing peak filter in voice link parametric equalizer is more than setting number Amount then newly sets peak filter and using newly-installed peak filter as the language of the frequency range to be debugged after the attenuation processing Wave filter in sound link parametric equalizer.
  20. 20. such as claim 17 to 19 any one of them device, which is characterized in that the processing unit, in the following way Determine the tuning parameter of the voice link parametric equalizer median filter：
    According to the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link parametric equalizer median filter Centre frequency between difference, it is determined whether the frequency range to be debugged after the attenuation processing and the voice link can be joined Frequency range where measuring the centre frequency of balanced device median filter merges into same frequency range；
    If frequency range where the frequency range and the voice link parametric equalizer median filter centre frequency can be merged into together One frequency range, then to be filtered in the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link parametric equalizer Average between device centre frequency is as the filter in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing The centre frequency of ripple device corresponds to gain with the centre frequency of the frequency range to be debugged after the attenuation processing and the voice link is joined Amount balanced device median filter centre frequency corresponds to language of the average as the frequency range to be debugged after the attenuation processing between gain The gain at filter centre frequency in sound link parametric equalizer, bandwidth using after merging between frequency section boundary frequency point as The desired bandwidth of wave filter in the voice link parametric equalizer of frequency range to be debugged after the attenuation processing；
    If the frequency range and frequency range where the voice link parametric equalizer median filter centre frequency can not be merged into Same frequency range, then using the centre frequency of the frequency range to be debugged after the attenuation processing as the frequency to be debugged after the attenuation processing The centre frequency of wave filter in the voice link parametric equalizer of section, with the center of the frequency range to be debugged after the attenuation processing Frequency corresponds to gain as the filter center in the voice link parametric equalizer of the frequency range to be debugged after the attenuation processing Gain at frequency, after bandwidth between the frequency section boundary frequency point to be debugged after the attenuation processing is the attenuation processing Frequency range to be debugged voice link parametric equalizer in wave filter desired bandwidth.
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