CN103473005B - Method and device for performing sound effect control on played audio frequency - Google Patents
Method and device for performing sound effect control on played audio frequency Download PDFInfo
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- CN103473005B CN103473005B CN201310456917.8A CN201310456917A CN103473005B CN 103473005 B CN103473005 B CN 103473005B CN 201310456917 A CN201310456917 A CN 201310456917A CN 103473005 B CN103473005 B CN 103473005B
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Abstract
The invention discloses a method and a device for performing sound effect control on played audio frequency. The method comprises the steps of receiving a target frequency response curve currently input by a user and determining a waveform function of a filter at an audio frequency playing terminal according to the waveform features of the received target frequency response curve currently input by the user; adjusting work parameters of the filter to enable the waveform curve output by the filter according to the determined waveform function to be consistent with the received target frequency response curve currently input by the user; controlling the filter to output the waveform to the audio frequency playing terminal for playing the audio frequency according to the adjusted work parameters of the filter. The method and the device for performing sound effect control on the played audio frequency realize that the frequency response value of the audio frequency playing terminal is correspondingly adjusted according to the command of the user, so the sound quality of the audio frequency played by the audio frequency playing terminal is adjusted to correspond to the command of the user.
Description
Technical field
The present invention relates to field of audio play, is related specifically to a kind of method for carrying out sound effect control to the audio frequency played
And device.
Background technology
At present, the audio-frequency playing terminal on market（For example, sound equipment or TV）Only one or more audio patterns, and respectively
It is fixed to plant the corresponding system frequency response of audio pattern.When audio-frequency playing terminal plays audio frequency, user can only be from prestoring
Audio mode in select a kind of to play audio frequency for audio-frequency playing terminal.
However, actually distinct user is different to the demand of the tonequality of the audio frequency played；Somebody likes listening low
Sound, somebody are liked listening high pitch or middle pitch.The existing audio-frequency playing terminal for prestoring the audio pattern that fixed audio frequency is played,
Cannot according to user to play audio frequency audio demand dynamic adjustment audio-frequency playing terminal frequency response values, with adjust to
Tonequality expected from user.
The content of the invention
The main object of the present invention is to provide the method and device that a kind of audio frequency to playing carries out sound effect control, it is intended to real
The frequency response values of the instruction correspondence adjustment audio-frequency playing terminal for now being issued according to user, so as to what is played audio-frequency playing terminal
The tonequality of audio frequency adjusts tonequality corresponding to user instruction.
The present invention proposes a kind of method for carrying out sound effect control to the audio frequency played, and the method includes：
The target frequency response curve of receive user currently input, the target frequency response curve being currently input into according to the user for receiving
Wave character determines the wave function of the wave filter of audio-frequency playing terminal, and the wave character includes frequency and amplitude；
The running parameter of the wave filter is adjusted so that what the wave filter was exported according to the wave function of the determination
Wavy curve is consistent with the target frequency response curve of the user for receiving currently input；
The wave filter is controlled according to the running parameter output waveform of the wave filter after adjustment to the audio-frequency playing terminal
To play audio frequency.
Preferably, after the step of the receive user currently target frequency response curve of input, the method also includes：
Whether analysis receives the target frequency response curve that user is input into again within the default time；
When the target frequency response curve that user is input into again is not received within the default time, worked as according to the user for receiving
The wave character of the target frequency response curve of front input determines the wave function of the wave filter of audio-frequency playing terminal；
When the target frequency response curve that user is input into again is received within the default time, according to the user for receiving again
The wave character of the target frequency response curve of input determines the wave function of the wave filter of audio-frequency playing terminal.
Preferably, the wave character in the target frequency response curve being currently input into according to the user for receiving determines that audio frequency is broadcast
After the step of wave function of the wave filter for putting terminal, the method also includes：
Judge whether the corresponding curve of wave function of the wave filter of the audio-frequency playing terminal for determining is worked as with the user for receiving
The target frequency response curve of front input is consistent；
It is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with receive user be currently input into
Target frequency response curve it is inconsistent when, adjust the running parameter of the wave filter so that the wave filter is according to the waveform for determining
The wavy curve of function output is consistent with the target frequency response curve of the user for receiving currently input；
It is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with receive user be currently input into
Target frequency response curve it is consistent when, control the wave filter according to the running parameter output waveform of present filter to the audio frequency
Playback terminal is playing audio frequency.
Preferably, the wave character of the target frequency response curve being currently input into according to the user for receiving determines that audio frequency is played
The step of wave function of the wave filter of terminal, also includes：
The target frequency response curve that the user for receiving currently is input into is smoothed according to the amplitude-frequency characteristic of wave filter, and
The wave function of the wave filter of audio-frequency playing terminal is determined according to the wave character of the target frequency response curve after smoothing processing.
Preferably, before the step of the receive user currently target frequency response curve of input, the method includes：
Human-computer interaction interface is provided, the human-computer interaction interface is included with frequency as transverse axis, coordinate system of the amplitude for the longitudinal axis,
Target frequency response curve is input in coordinate system for user on human-computer interaction interface.
Preferably, the wave function is：G（fa）=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、
G1), wherein, G（fa）For Frequency point faLocate corresponding range value；HHP 2(f0、fa, Q) then represent second order high-pass filtering 1. in faAt point
Range value, wherein f0Frequency is characterized, Q is quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selective filtering 2. in faAt point
Range value；Wherein f0It is characterized frequency, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering yield value 2.；Hpeak
(f1、fa、Q1、G1) represent frequency-selective filtering 3. in faRange value at point；f1It is characterized frequency, Q1For frequency-selective filtering quality 3. because
Number, G1For frequency-selective filtering yield value 3..
The present invention also proposes that a kind of audio frequency to playing carries out the device of sound effect control, and the device includes：
Data sending and receiving module, for the target frequency response curve of receive user currently input；
Processing module, the wave character of the target frequency response curve for being currently input into according to the user for receiving determine that audio frequency is broadcast
The wave function of the wave filter of terminal is put, the wave character includes frequency and amplitude；
Adjusting module, for adjusting the running parameter of the wave filter so that the wave filter is according to the waveform letter for determining
The wavy curve of number output is consistent with the target frequency response curve of the user for receiving currently input；
Control module, for controlling the wave filter according to the running parameter output waveform of the wave filter after adjustment to described
Audio-frequency playing terminal is playing audio frequency.
Preferably, the device also includes analysis module,
Whether the analysis module, receive the target frequency response song that user is input into again within the default time for analysis
Line；
The processing module, does not receive the target frequency response curve that user is input into again within the default time for working as
When, the wave character of the target frequency response curve being currently input into according to the user for receiving determines the ripple of the wave filter of audio-frequency playing terminal
Shape function；Or
When the target frequency response curve that user is input into again is received within the default time, according to the user for receiving again
The wave character of the target frequency response curve of input determines the wave function of the wave filter of audio-frequency playing terminal.
Preferably, the analysis module, is additionally operable to the wave function pair of the wave filter of the audio-frequency playing terminal for judging to determine
Whether the curve answered is consistent with the target frequency response curve of the user for receiving currently input；
The processing module, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with connect
When the target frequency response curve of the user of receipts currently input is inconsistent, the running parameter of the wave filter is adjusted so that the filtering
Device is consistent with the target frequency response curve of the user for receiving currently input according to the wavy curve of the wave function output for determining；
The control module, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with connect
When the target frequency response curve of the user of receipts currently input is consistent, the wave filter is controlled defeated according to the running parameter of present filter
Go out waveform to the audio-frequency playing terminal to play audio frequency.
Preferably, the processing module, is additionally operable to what is the user of reception is currently input into according to the amplitude-frequency characteristic of wave filter
Target frequency response curve is smoothed, and determines that audio frequency is played according to the wave character of the target frequency response curve after smoothing processing
The wave function of the wave filter of terminal.
Preferably, the data sending and receiving module, also provides for human-computer interaction interface, the human-computer interaction interface include with
Frequency is transverse axis, and amplitude is the coordinate system of the longitudinal axis, is input into target frequency response bent in the coordinate system for user on human-computer interaction interface
Line.
Preferably, the wave function is：G（fa）=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、
G1), wherein, G（fa）For Frequency point faLocate corresponding range value；HHP 2(f0、fa, Q) then represent second order high-pass filtering 1. in faAt point
Range value, wherein f0Frequency is characterized, Q is quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selective filtering 2. in faAt point
Range value；Wherein f0It is characterized frequency, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering yield value 2.；Hpeak
(f1、fa、Q1、G1) represent frequency-selective filtering 3. in faRange value at point；f1It is characterized frequency, Q1For frequency-selective filtering quality 3. because
Number, G1For frequency-selective filtering yield value 3..
Hinge structure, the wave character of the target frequency response curve that the present invention is currently input into according to the user for receiving determine
The wave function of the wave filter of audio-frequency playing terminal；The running parameter of the wave filter is adjusted so that the wave filter is according to true
The wavy curve of fixed wave function output is consistent with the target frequency response curve of the user for receiving currently input；Control the filtering
Device is given the audio-frequency playing terminal to play audio frequency according to the running parameter output waveform of the wave filter of adjustment.Realize according to user
The frequency response values of the instruction correspondence adjustment audio-frequency playing terminal for issuing, so as to the tonequality of audio frequency for playing audio-frequency playing terminal
Adjust tonequality corresponding to user instruction.
Description of the drawings
Fig. 1 is the particular flow sheet of the first embodiment of the method that the present invention carries out sound effect control to the audio frequency played；
Fig. 2 is the schematic diagram of the aim curve of user input of the present invention；
Fig. 3 is the particular flow sheet of the second embodiment of the method that the present invention carries out sound effect control to the audio frequency played；
Fig. 4 is the particular flow sheet of the 3rd embodiment of the method that the present invention carries out sound effect control to the audio frequency played；
Fig. 5 is the particular flow sheet of the first embodiment of the device that the present invention carries out sound effect control to the audio frequency played；
Fig. 6 is the particular flow sheet of the second embodiment of the device that the present invention carries out sound effect control to the audio frequency played.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
As depicted in figs. 1 and 2, Fig. 1 is the first embodiment of the method that the present invention carries out sound effect control to the audio frequency played
Particular flow sheet, Fig. 2 is the schematic diagram of the aim curve of user input of the present invention.
It is emphasized that：The only preferred embodiment of flow chart shown in Fig. 1, those skilled in the art are appointed when knowing
What should not all depart from the scope covered in following technical scheme around the embodiment that inventive concept builds：
The target frequency response curve of receive user currently input, the target frequency response curve being currently input into according to the user for receiving
Wave character determines the wave function of the wave filter of audio-frequency playing terminal, and the wave character includes frequency and amplitude；Adjustment institute
The running parameter of wave filter is stated so that the wave filter is according to the wave function for the determining wavy curve for exporting and the use for receiving
The target frequency response curve of family currently input is consistent；Control running parameter output wave of the wave filter according to the wave filter after adjustment
Shape gives the audio-frequency playing terminal to play audio frequency.
The following is the present embodiment and the concrete steps that sound effect control is carried out to the audio frequency played are done step-by-step：
Step S11, the target frequency response curve of receive user currently input.
Specifically, there is provided human-computer interaction interface, the human-computer interaction interface includes that with frequency as transverse axis amplitude is the longitudinal axis
Coordinate system, is input into target frequency response curve in the coordinate system for user on human-computer interaction interface；The human-computer interaction interface includes
Coordinate system on frequency and amplitude correspond with the frequency and amplitude of audio-frequency playing terminal actual play.When user is man-machine
When coordinate system on interactive interface is input into target frequency response curve, the target frequency response curve of receive user currently input, and according to filter
The target frequency response curve of user currently input of the amplitude-frequency characteristic of ripple device to receiving is smoothed.
Step S12, the wave character of the target frequency response curve being currently input into according to the user for receiving determine that audio frequency is played eventually
The wave function of the wave filter at end, the wave character include frequency and amplitude.
Specifically, it is with reference to Fig. 2, bent in the target frequency response of user currently input of the amplitude-frequency characteristic according to wave filter to receiving
After line is smoothed, the type of the feature selection wave filter of the target frequency response curve being currently input into according to the user for receiving,
Wherein, the wave character of the target frequency response curve may include frequency and amplitude, may also include gain etc., herein this is not limited
System.And the wave filter includes high pass filter, low pass filter, band filter or band elimination filter etc.；According to curve
Wave character（Gain or decay）One or more wave filter are selected, and audio-frequency playing terminal are determined according to the type of wave filter is selected
Wave filter wave function, can be G（fa）=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、G1), G
（fa）For Frequency point faLocate corresponding range value；HHP 2(f0、fa, Q) then represent second order high-pass filtering 1. in faRange value at point,
Wherein f0Frequency is characterized, Q is quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selective filtering 2. in faRange value at point；Its
Middle f0It is characterized frequency, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering yield value 2.；Hpeak(f1、fa、Q1、G1)
Represent frequency-selective filtering 3. in faRange value at point；Wherein f1It is characterized frequency, Q1For frequency-selective filtering quality factor 3., G1For
Frequency-selective filtering yield value 3., wherein filtering 1., 2. and 3. as shown in Figure 2.
Step S13, adjust the running parameter of the wave filter so that the wave filter according to the determination waveform letter
The wavy curve of number output is consistent with the target frequency response curve of the user for receiving currently input.
Specifically, the wave character in the target frequency response curve being currently input into according to the user for receiving selects the class of wave filter
Type, and the running parameter of the wave filter after determining the wave function of wave filter of audio-frequency playing terminal, is adjusted, so that described
Wave filter is consistent with the target frequency response curve of the user for receiving currently input according to the wavy curve of the wave function output for determining,
Wherein, the parameter of the wave filter includes mid frequency, cut-off frequency, pass band width, insertion loss or ripple etc..In adjustment institute
After stating the running parameter of wave filter, the waveform letter of the wave filter of the audio-frequency playing terminal of the determination after adjustment filter parameter is judged
Whether the wavy curve of number output is consistent with the target frequency response curve of the user for receiving currently input, after adjustment filter parameter
Determination audio-frequency playing terminal wave filter wave function output wavy curve and the user for receiving currently input mesh
When mark frequency response curve is consistent, following step S14 is performed；Or the filter of the audio-frequency playing terminal of determination after filter parameter is adjusted
The wavy curve of the function output after the wave function of ripple device is inconsistent with the target frequency response curve of the user for receiving currently input
When, continue the running parameter of the adjustment wave filter, until the wave filter is bent according to the waveform of the wave function output for determining
Line is consistent with the target frequency response curve of the user for receiving currently input.
Step S14, control the wave filter according to the running parameter output waveform after adjustment to audio-frequency playing terminal to broadcast
Playback frequency.
Specifically, adjustment filter parameter after, it is determined that audio-frequency playing terminal wave filter wave function output
When wavy curve is consistent with the target frequency response curve of the user for receiving currently input, determines the current parameter value of wave filter and protect
Deposit, the filter parameter after will adjusting is preserved, arrange and generate EQ（Audio）Data, by data input/output interface
Write DSP（Digital Signal Processing）Power amplifier, corresponding function deposit of the DSP power amplifiers according to the EQ data modification DSP power amplifiers of write
Device, so that the wavy curve of audio-frequency playing terminal output is consistent with target frequency response curve, tonequality expected from output user.With reference to figure
2, for example, by obtaining three frequency-selective filterings frequency 1., 2. and 3. and range value on aim curve, three for obtaining respectively
Individual frequency-selective filtering frequency 1., 2. and 3. and range value substitute into function G（fa）=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+
Hpeak(f1、fa、Q1、G1), obtain frequency-selective filtering f 1.0=55Hz, Q=1.5, frequency-selective filtering f 2.0=800Hz, Q=1.8, G0=4,
Frequency-selective filtering f 3.0=5000Hz, Q=1.8, G0When=- 3.8, the wavy curve of function output is consistent with target frequency response curve, will
Corresponding three frequency-selective filtering parameters are preserved, and are organized into EQ data write DSP power amplifiers, and DSP power amplifiers are according to the EQ data for receiving
The function register of corresponding modification DSP power amplifiers, so that audio-frequency playing terminal（DSP power amplifiers）The wavy curve of output and target frequency
Ring curve consistent, tonequality expected from output user.
Audio-frequency playing terminal is determined by the wave character of the target frequency response curve being currently input into according to the user for receiving
The wave function of wave filter；The running parameter of the wave filter is adjusted so that the wave filter is defeated according to the wave function for determining
The wavy curve for going out is consistent with the target frequency response curve of the user for receiving currently input；Control filter of the wave filter according to adjustment
The running parameter output waveform of ripple device gives the audio-frequency playing terminal to play audio frequency.Realize the instruction correspondence issued according to user
The frequency response values of adjustment audio-frequency playing terminal, so that the tonequality of the audio frequency for playing audio-frequency playing terminal is adjusted to user instruction
Corresponding tonequality.
As shown in figure 3, the concrete stream of the second embodiment of the method for sound effect control is carried out for the present invention to the audio frequency played
Cheng Tu.
Based on above-mentioned first embodiment, after step s 11, also include：
Whether step S15, analysis receive the target frequency response curve that user is input into again within the default time.
Specifically, preset the time, can be time value that the users such as 5s or 10s are arranged in advance, work as user is received
During the target frequency response data of front input, and whether analysis receives the target frequency response song that user is input into again within the default time
When line, i.e. user are dissatisfied to the target frequency response curve of current input, continue to be input into target frequency response curve again.When default
When the target frequency response curve that user is input into again is received in the time, following step S16 is performed, when not connecing within the default time
When receiving the target frequency response curve that user is input into again, execution step S12.
Step S16, when the target frequency response curve that user is input into again is received within the default time, according to what is received
The wave character of the target frequency response curve that user is input into again determines the wave function of the wave filter of audio-frequency playing terminal.
Specifically, when the target frequency response curve that user is input into again is received within the default time, according to what is received
The feature of the target frequency response curve that user is input into again determines the wave function of the wave filter of audio-frequency playing terminal, not to reception
The target frequency response curve that user was input into before the default time responds, i.e., the target frequency response being input into again that acquiescence is received
Curve is used as user's the set goal audio curve.
By presetting the time, when receiving the target frequency response curve that user is input into again in the Preset Time, according to connecing
The wave character of the target frequency response curve that the user of receipts is input into again determines the wave function of the wave filter of audio-frequency playing terminal, and
The wave character of the target frequency response curve not being input into before the default time according to the user for receiving determines audio-frequency playing terminal
Wave filter wave function, target frequency response curve during avoiding user from being continuously input into target frequency response curve, to all receptions
Respond, improve system running speed, determine the corresponding filter parameter of user's the set goal frequency response curve in time, to control
Audio expected from audio-frequency playing terminal output user processed.
As shown in figure 4, the concrete stream of the 3rd embodiment of the method for sound effect control is carried out for the present invention to the audio frequency played
Cheng Tu.
Based on above-mentioned first embodiment, after step s 12, also include：
Step S17, judge the wavy curve of the wave function output of the wave filter of audio-frequency playing terminal that determines whether with
The target frequency response curve of the user of reception currently input is consistent.
Step S18, it is determined that audio-frequency playing terminal wave filter wave function output wavy curve with receive
When the target frequency response curve of user's currently input is consistent, the wave filter is controlled according to current running parameter output waveform to institute
State audio-frequency playing terminal to play audio frequency.
By it is determined that audio-frequency playing terminal wave filter wave function when, judge the audio-frequency playing terminal for determining
Whether the wavy curve of the wave function output of wave filter is consistent with the target frequency response curve of the user for receiving currently input, and
It is determined that audio-frequency playing terminal wave filter wave function output wavy curve it is consistent when, control the wave filter according to working as
Front running parameter output waveform gives the audio-frequency playing terminal to play audio frequency.Played eventually with the audio frequency for quickly finding determination
The wavy curve wave filter operating parameter values consistent with target frequency response curve of the wave function output of the wave filter at end, with broadcasting
Go out audio expected from user.
As shown in figure 5, the concrete stream of the first embodiment of the device of sound effect control is carried out for the present invention to the audio frequency played
Cheng Tu.The device includes：Data sending and receiving module 10, processing module 20, adjusting module 30 and control module 40,
The data sending and receiving module 10, for the target frequency response curve of receive user currently input.
Specifically, data sending and receiving module 10 provides human-computer interaction interface, and the human-computer interaction interface is included with frequency as horizontal stroke
Axle, coordinate system of the amplitude for the longitudinal axis are input into target frequency response curve in the coordinate system for user on human-computer interaction interface；The people
One a pair of the frequency of the frequency in coordinate system that machine interactive interface includes and amplitude and audio-frequency playing terminal actual play and amplitude
Should.
The processing module 20, the wave character of the target frequency response curve for being currently input into according to the user for receiving determine
The wave function of the wave filter of audio-frequency playing terminal, the wave character include frequency and amplitude.
Specifically, when the coordinate system as user on human-computer interaction interface is input into target frequency response curve, data sending and receiving module
The target frequency response curve of 10 receive users currently input, processing module 20 are worked as to the user for receiving according to the amplitude-frequency characteristic of wave filter
The target frequency response curve of front input is smoothed.With reference to Fig. 2, docked according to the amplitude-frequency characteristic of wave filter in processing module 20
After the target frequency response curve of the user of receipts currently input is smoothed, according to the target frequency response of the user for receiving currently input
The type of the feature selection wave filter of curve, the wave filter include high pass filter, low pass filter, band filter or band
Resistance wave filter etc.；According to the wave character of curve（Gain or decay）One or more wave filter are selected, according to selection wave filter
Type determine audio-frequency playing terminal wave filter wave function, can be G（fa）=HHP 2(f0、fa、Q)+Hpeak(f0、fa、
Q0、G0)+Hpeak(f1、fa、Q1、G1), G（fa）For Frequency point faLocate corresponding range value；HHP 2(f0、fa, Q) then represent second order high pass
Filtering is 1. in faRange value at point, wherein f0Frequency is characterized, Q is quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selecting filter
Ripple is 2. in faRange value at point；Wherein f0It is characterized frequency, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering 2.
Yield value；Hpeak(f1、fa、Q1、G1) represent frequency-selective filtering 3. in faRange value at point；Wherein f1It is characterized frequency, Q1For choosing
Frequency filtering quality factor 3., G1For frequency-selective filtering yield value 3., wherein filtering 1., 2. and 3. as shown in Figure 2.
The adjusting module 30, for adjusting the running parameter of the wave filter so that the wave filter is according to determination
The wavy curve of wave function output is consistent with the target frequency response curve of the user for receiving currently input.
Specifically, the wave character of the target frequency response curve being currently input into according to the user for receiving in processing module 20 is selected
The type of wave filter, and after determining the wave function of wave filter of audio-frequency playing terminal, adjusting module 30 adjusts the wave filter
Running parameter so that the wave filter according to determine wave function output wavy curve with reception user it is currently defeated
The target frequency response curve for entering is consistent, wherein, the parameter of the wave filter includes mid frequency, cut-off frequency, pass band width, insertion
Loss or ripple etc..After the running parameter for adjusting the wave filter, after the judgement adjustment filter parameter of analysis module 50 really
The wavy curve of the wave function output of the wave filter of fixed audio-frequency playing terminal whether with the user for receiving currently input mesh
Mark frequency response curve is consistent, the wave function output of the wave filter of the audio-frequency playing terminal of the determination after adjustment filter parameter
When wavy curve is consistent with the target frequency response curve of the user for receiving currently input, control module 40 control the wave filter according to
The running parameter output waveform of the wave filter after adjustment gives the audio-frequency playing terminal to play audio frequency；Or when adjustment wave filter ginseng
The wavy curve of the function output after the wave function of the wave filter of the audio-frequency playing terminal of the determination after number and the user for receiving
When the target frequency response curve of current input is inconsistent, adjusting module 30 continues the running parameter of the adjustment wave filter, until institute
State the target frequency response curve one of wavy curve of the wave filter according to the wave function output for determining and the user for receiving currently input
Cause.
The control module 40, for controlling running parameter output waveform of the wave filter according to the wave filter after adjustment
To the audio-frequency playing terminal playing audio frequency.
Specifically, adjustment filter parameter after, it is determined that audio-frequency playing terminal wave filter wave function output
When wavy curve is consistent with the target frequency response curve of the user for receiving currently input, control module 40 determines the current ginseng of wave filter
Numerical value is simultaneously preserved, and the filter parameter after will adjusting is preserved, and is arranged and is generated EQ（Audio）Data, by data input
Output interface writes DSP（Digital Signal Processing）Power amplifier, DSP power amplifiers are corresponding according to the EQ data modification DSP power amplifiers of write
Function register, so that the wavy curve of audio-frequency playing terminal output is consistent with target frequency response curve, sound expected from output user
Matter.With reference to Fig. 2, for example, processing module 20 is by obtaining the frequency 1., 2. and 3. of three frequency-selective filterings on aim curve and width
The three frequency-selective filterings frequency 1., 2. and 3. for obtaining and range value are substituted into function G by angle value respectively（fa）=HHP 2(f0、fa、Q)
+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、G1), obtain frequency-selective filtering f 1.0=55Hz, Q=1.5, frequency-selective filtering f 2.0
=800Hz, Q=1.8, G0=4, frequency-selective filtering f 3.0=5000Hz, Q=1.8, G0When=- 3.8, the wavy curve and mesh of function output
Mark frequency response curve is consistent, and corresponding three frequency-selective filtering parameters are preserved by control module 40, and is organized into EQ data write DSP work(
Put, DSP power amplifiers change the function register of DSP power amplifiers accordingly according to the EQ data for receiving, so that audio-frequency playing terminal（DSP
Power amplifier）The wavy curve of output is consistent with target frequency response curve, tonequality expected from output user.
The wave character of the target frequency response curve being currently input into according to the user for receiving by processing module 20 determines audio frequency
The wave function of the wave filter of playback terminal；Adjusting module 30 adjusts the running parameter of the wave filter so that the wave filter
Wavy curve according to the wave function output for determining is consistent with the target frequency response curve of the user for receiving currently input；Control mould
Block 40 control the wave filter according to adjustment wave filter running parameter output waveform to the audio-frequency playing terminal to play
Audio frequency.Realize the frequency response values of audio-frequency playing terminal are adjusted according to the instruction correspondence that user issues, so that audio frequency is played eventually
The tonequality of the audio frequency that end is played adjusts tonequality corresponding to user instruction.
As shown in fig. 6, the concrete stream of the second embodiment of the device of sound effect control is carried out for the present invention to the audio frequency played
Cheng Tu.The device also includes analysis module 50,
Whether the analysis module 50, receive the target frequency response that user is input into again within the default time for analysis
Curve.
Specifically, analysis module 50 presets the time, can be the time value that the users such as 5s or 10s are arranged in advance, connect
When receiving the target frequency response data that user is currently input into, and whether analysis receives what user was input into again within the default time
When target frequency response curve, i.e. user are dissatisfied to the target frequency response curve of current input, continue to be input into target frequency response curve again.
The processing module 20, does not receive the target frequency response curve that user is input into again within the default time for working as
When, the wave character of the target frequency response curve being currently input into according to the user for receiving determines the ripple of the wave filter of audio-frequency playing terminal
Shape function；Or
When the target frequency response curve that user is input into again is received within the default time, according to the user for receiving again
The wave character of the target frequency response curve of input determines the wave function of the wave filter of audio-frequency playing terminal.
Specifically, when the target frequency response curve that user is input into again is received within the default time, processing module 20
The feature of the target frequency response curve that the user according to receiving is input into again determines the wave function of the wave filter of audio-frequency playing terminal,
The target frequency response curve that the user for receiving was input into before the default time is not responded, i.e., the input again that acquiescence is received
Target frequency response curve as user's the set goal audio curve.
By the default time of analysis module 50, the target frequency response curve that user is input into again is received in Preset Time
When, the wave character of the target frequency response curve that processing module 20 is input into again according to the user for receiving determines audio-frequency playing terminal
The wave function of wave filter, and the waveform of the target frequency response curve not being input into before the default time according to the user for receiving is special
The wave function of the wave filter for determining audio-frequency playing terminal is levied, during avoiding user from being continuously input into target frequency response curve, to all
The target frequency response curve of reception responds, and improves system running speed, determines user's the set goal frequency response curve pair in time
The filter parameter answered, to control audio expected from audio-frequency playing terminal output user.
Further, the analysis module 50, is additionally operable to the waveform letter of the wave filter of the audio-frequency playing terminal for judging to determine
Whether the corresponding curve of number is consistent with the target frequency response curve of the user for receiving currently input；
The processing module 20, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with
When the target frequency response curve of the user of reception currently input is inconsistent, the running parameter of the wave filter is adjusted so that the filter
Ripple device is consistent with the target frequency response curve of the user for receiving currently input according to the wavy curve of the wave function output for determining；
The control module 40, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with
When the target frequency response curve of the user of reception currently input is consistent, running parameter of the wave filter according to present filter is controlled
Output waveform gives the audio-frequency playing terminal to play audio frequency.
By it is determined that audio-frequency playing terminal wave filter wave function when, analysis module 50 judge determine audio frequency
Whether the wavy curve of the wave function output of the wave filter of playback terminal is bent with the target frequency response of the user for receiving currently input
Line is consistent, and it is determined that audio-frequency playing terminal wave filter wave function output wavy curve it is consistent when, control module
The 40 controls wave filter is given the audio-frequency playing terminal to play audio frequency according to current running parameter output waveform.With quick
The audio-frequency playing terminal for finding determination wave filter wave function output wavy curve it is consistent with target frequency response curve
Wave filter operating parameter values, to play out audio expected from user.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (12)
1. a kind of method that audio frequency to broadcasting carries out sound effect control, it is characterised in that the method includes：
The target frequency response curve of receive user currently input, the waveform of the target frequency response curve being currently input into according to the user for receiving
The type of feature selection wave filter, and determine the wave function of the wave filter of audio-frequency playing terminal, the wave character includes frequency
Rate and amplitude；
Adjust the running parameter of the wave filter so that the wave filter according to the determination wave function export waveform
Curve is consistent with the target frequency response curve of the user for receiving currently input；
Control the wave filter according to the running parameter output waveform after adjustment to audio-frequency playing terminal to play audio frequency.
2. the method that the audio frequency to broadcasting according to claim 1 carries out sound effect control, it is characterised in that in the reception
After the step of target frequency response curve that user is currently input into, the method also includes：
Whether analysis receives the target frequency response curve that user is input into again within the default time；
It is when the target frequency response curve that user is input into again is not received within the default time, currently defeated according to the user for receiving
The wave character of the target frequency response curve for entering determines the wave function of the wave filter of audio-frequency playing terminal；
When the target frequency response curve that user is input into again is received within the default time, it is input into according to the user for receiving again
Target frequency response curve wave character determine audio-frequency playing terminal wave filter wave function.
3. the method that the audio frequency to broadcasting according to claim 1 and 2 carries out sound effect control, it is characterised in that described
The wave character of the target frequency response curve being currently input into according to the user for receiving determines the waveform of the wave filter of audio-frequency playing terminal
After the step of function, the method also includes：
Judge whether the wavy curve of the wave function output of the wave filter of the audio-frequency playing terminal for determining is worked as with the user for receiving
The target frequency response curve of front input is consistent；
It is determined that audio-frequency playing terminal wave filter wave function output wavy curve with reception user be currently input into
Target frequency response curve it is inconsistent when, adjust the running parameter of the wave filter so that the wave filter is according to the waveform for determining
The wavy curve of function output is consistent with the target frequency response curve of the user for receiving currently input；
It is determined that audio-frequency playing terminal wave filter wave function output wavy curve with reception user be currently input into
Target frequency response curve it is consistent when, control the wave filter and play eventually to the audio frequency according to current running parameter output waveform
Hold to play audio frequency.
4. the method that the audio frequency to broadcasting according to claim 1 carries out sound effect control, it is characterised in that the basis connects
The wave character of the target frequency response curve that the user of receipts is currently input into determines the wave function of the wave filter of audio-frequency playing terminal
Step also includes：
The target frequency response curve that the user for receiving currently is input into is smoothed according to the amplitude-frequency characteristic of wave filter, and according to
The wave character of the target frequency response curve after smoothing processing determines the wave function of the wave filter of audio-frequency playing terminal.
5. the method that the audio frequency to broadcasting according to claim 1 and 2 carries out sound effect control, it is characterised in that described
Before the step of target frequency response curve that receive user is currently input into, the method includes：
Human-computer interaction interface is provided, the human-computer interaction interface is included with frequency as transverse axis, coordinate system of the amplitude for the longitudinal axis, for
Target frequency response curve is input in coordinate system of the family on human-computer interaction interface.
6. the method that the audio frequency to broadcasting according to claim 1 carries out sound effect control, it is characterised in that the waveform letter
Number is：G (fa)=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、G1), wherein, G (fa) for Frequency point fa
Locate corresponding range value；HHP 2(f0、fa, Q) then represent second order high-pass filtering 1. in faRange value at point, wherein f0It is characterized frequency
Rate, Q are quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selective filtering 2. in faRange value at point；Wherein f0It is characterized frequency
Rate, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering yield value 2.；Hpeak(f1、fa、Q1、G1) represent frequency-selecting filter
Ripple is 3. in faRange value at point；f1It is characterized frequency, Q1For frequency-selective filtering quality factor 3., G1For frequency-selective filtering increasing 3.
Benefit value.
7. a kind of audio frequency to broadcasting carries out the device of sound effect control, it is characterised in that the device includes：
Data sending and receiving module, for the target frequency response curve of receive user currently input；
Processing module, the wave character of the target frequency response curve for being currently input into according to the user for receiving select the class of wave filter
Type, and determine the wave function of the wave filter of audio-frequency playing terminal, the wave character includes frequency and amplitude；
Adjusting module, for adjust the wave filter running parameter so that the wave filter according to the determination waveform letter
The wavy curve of number output is consistent with the target frequency response curve of the user for receiving currently input；
Control module, for controlling the wave filter according to the running parameter output waveform of the wave filter after adjustment to the audio frequency
Playback terminal is playing audio frequency.
8. the audio frequency to broadcasting according to claim 7 carries out the device of sound effect control, it is characterised in that the device is also wrapped
Include analysis module,
Whether the analysis module, receive the target frequency response curve that user is input into again within the default time for analysis；
The processing module, for when the target frequency response curve that user is input into again is not received within the default time, root
The wave character of the target frequency response curve being currently input into according to the user for receiving determines the waveform letter of the wave filter of audio-frequency playing terminal
Number；Or
When the target frequency response curve that user is input into again is received within the default time, it is input into according to the user for receiving again
Target frequency response curve wave character determine audio-frequency playing terminal wave filter wave function.
9. the audio frequency to broadcasting according to claim 8 carries out the device of sound effect control, it is characterised in that
The analysis module, is additionally operable to judge the corresponding curve of wave function of the wave filter of audio-frequency playing terminal that determines whether
It is consistent with the target frequency response curve of the user for receiving currently input；
The processing module, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with receive
When the target frequency response curve of user's currently input is inconsistent, the running parameter of the wave filter is adjusted so that the wave filter is pressed
It is consistent with the target frequency response curve of the user for receiving currently input according to the wavy curve of the wave function output for determining；
The control module, for it is determined that audio-frequency playing terminal wave filter the corresponding curve of wave function with receive
When the target frequency response curve of user's currently input is consistent, running parameter output wave of the wave filter according to present filter is controlled
Shape gives the audio-frequency playing terminal to play audio frequency.
10. the audio frequency to broadcasting according to claim 7 carries out the device of sound effect control, it is characterised in that
The processing module, is additionally operable to the target frequency response curve being currently input into the user of reception according to the amplitude-frequency characteristic of wave filter
It is smoothed, and the wave filter of audio-frequency playing terminal is determined according to the wave character of the target frequency response curve after smoothing processing
Wave function.
11. audio frequency to broadcasting according to claim 7 or 8 carry out the device of sound effect control, it is characterised in that
The data sending and receiving module, also provides for human-computer interaction interface, and the human-computer interaction interface is included with frequency as transverse axis,
Coordinate system of the amplitude for the longitudinal axis, is input into target frequency response curve in the coordinate system for user on human-computer interaction interface.
12. audio frequency to broadcasting according to claim 7 carry out the device of sound effect control, it is characterised in that the waveform
Function is：G (fa)=HHP 2(f0、fa、Q)+Hpeak(f0、fa、Q0、G0)+Hpeak(f1、fa、Q1、G1), wherein, G (fa) for Frequency point
faLocate corresponding range value；HHP 2(f0、fa, Q) then represent second order high-pass filtering 1. in faRange value at point, wherein f0It is characterized
Frequency, Q are quality factor；Hpeak(f0、fa、Q0、G0) represent frequency-selective filtering 2. in faRange value at point；Wherein f0It is characterized frequency
Rate, Q0For frequency-selective filtering quality factor 2., G0For frequency-selective filtering yield value 2.；Hpeak(f1、fa、Q1、G1) represent frequency-selecting filter
Ripple is 3. in faRange value at point；f1It is characterized frequency, Q1For frequency-selective filtering quality factor 3., G1For frequency-selective filtering increasing 3.
Benefit value.
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| CN106559056B (en) * | 2015-09-25 | 2019-05-07 | 电信科学技术研究院 | Parameter processing method, audio signal playback method, device and audio equalizer |
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| CN105657608B (en) * | 2015-12-31 | 2018-09-04 | 深圳Tcl数字技术有限公司 | Audio signal frequency responds compensation method and device |
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| CN108174007A (en) * | 2017-12-28 | 2018-06-15 | 上海传英信息技术有限公司 | A kind of audio system, audio control method and the mobile terminal with the system |
| CN110913325A (en) * | 2019-11-26 | 2020-03-24 | 科大讯飞股份有限公司 | Automatic tuning method, related device and readable storage medium |
| CN113076075A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Audio signal adjusting method and device, terminal and storage medium |
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