CN109151702A - Effect adjusting method, audio frequency apparatus and the readable storage medium storing program for executing of audio frequency apparatus - Google Patents
Effect adjusting method, audio frequency apparatus and the readable storage medium storing program for executing of audio frequency apparatus Download PDFInfo
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- H—ELECTRICITY
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- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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Abstract
The invention discloses a kind of effect adjusting methods of audio frequency apparatus, comprising: obtains the initial reverberation time of detection signal measurement environment space；First object model is applied to detection signal according to initial reverberation time, obtains the test reverberation time of the corresponding measurement environment space of the first test signal generated based on first object model and the first test signal；When receiving the preset target reverberation time, the test reverberation time is adjusted, obtains the second object module, and the second test signal generated based on the second object module；Obtain the current reverberation time of the second test signal measurement environment space；When the difference of current reverberation time and target reverberation time meet preset range, the second object module is exported, to carry out audio broadcasting.The invention also discloses a kind of audio frequency apparatus and computer readable storage mediums.The reverberation state of present invention acoustic surrounding according to locating for user, specific aim improve reverberation effect, to improve the audition experience of hearer.
Description
Technical field
The present invention relates to Audiotechnica field more particularly to a kind of effect adjusting method of audio frequency apparatus, audio frequency apparatus and
Computer readable storage medium.
Background technique
Reverberation is necessary being in real world, but the recording of a song, often in sound insulation or sound absorption effect
It completes in stronger " recording studio ", in this way, having lacked the sound reflecting in true environment, if direct playback, can lack
Telepresenc.Therefore, in order to enhance the subjective sense of hearing of a song, existing audio frequency apparatus can add the effect of reverberation to song
Fruit can increase spatial impression, to improve the richness of sound by reprocessing to the primary sound for comparing " dry ".
Although existing audio frequency apparatus can increase the reverberation effect of song, the acoustic surrounding of user's multiplicity is not considered,
And inherently there is biggish reverberation in acoustic surrounding, at this point, will lead to whole reverberation too if adding reverberation in result of broadcast again
It is more, reduce the audition impression of hearer.
Summary of the invention
The main purpose of the present invention is to provide a kind of effect adjusting method of audio frequency apparatus, audio frequency apparatus and computers can
Read storage medium, it is intended to which the reverberation state of the acoustic surrounding according to locating for user, specific aim improves reverberation effect, to improve hearer's
Audition experience.
To achieve the above object, the present invention provides a kind of effect adjusting method of audio frequency apparatus, the sound of the audio frequency apparatus
Imitate adjusting method the following steps are included:
Obtain the initial reverberation time of detection signal measurement environment space；
First object model is applied to the detection signal according to the initial reverberation time, is obtained based on first mesh
The first test signal that model generates is marked, and obtains the test reverberation of the corresponding measurement environment space of the first test signal
Time；
When receiving the preset target reverberation time, the test reverberation time is adjusted, the second target is obtained
Model, and the second test signal generated based on second object module；
Obtain the current reverberation time of the second test signal measurement environment space；
When the difference of the current reverberation time and the target reverberation time meet preset range, output described second
Object module, to carry out audio broadcasting.
Preferably, described when receiving the target reverberation time, the step of test reverberation time is adjusted packet
It includes:
When receiving the target reverberation time, the type of the first object model is obtained；
The first object model type be basic reverberation unit model when, adjust delay factor and/or decaying because
Subparameter；
When the type of the first object model is open interface reverberation model, between adjusting early inverse time and/or psychrometric ratio
Parameter；
According to the test reverberation time adjusted, second target corresponding with test reverberation time adjusted is obtained
Model.
Preferably, the audio frequency apparatus includes loudspeaker and microphone, and described obtain detects the first of signal measurement environment space
Begin the reverberation time the step of include:
The input function based on the detection signal played through the loudspeaker is obtained, and is generated through the environment space
It is collected after reverberation to the output function of the microphone；
Transmission function is calculated according to the input function and the output function；
Inverse Laplace transform is made to the transmission function, obtains impulse response function；
The initial reverberation time is extrapolated according to the impulse response function.
Preferably, described the step of extrapolating the initial reverberation time according to the impulse response function, includes:
According to the impulse response function, Energy Decay Curve is obtained；
The detection signal is obtained to decay in predetermined decibel range the attenuation decibel of predetermined quantity and between die-away time
Corresponding relationship；
According to the attenuation decibel of the predetermined quantity and the corresponding relationship between die-away time, it is bent to calculate the energy attenuation
The slope of line；
The detection signal is extrapolated according to the slope to decay 60 decibels of corresponding die-away times, is obtained described initial mixed
Ring the time.
Preferably, after the step of current reverberation time for obtaining the second test signal measurement environment space also
Include:
When the difference of the current reverberation time and the target reverberation time are unsatisfactory for preset range, re-execute pair
The step of test reverberation time is adjusted.
Preferably, the preset range are as follows: -25ms~25ms.
Preferably, the detection signal is any in swept-frequency signal, steady-state noise signal or pulse signal.
To achieve the above object, the present invention also provides a kind of audio frequency apparatus, the audio frequency apparatus includes processor and deposits
The audio for storing up the audio frequency apparatus that can be run in the processor and on the processor adjusts program, wherein the audio
The audio of equipment adjusts the step that the effect adjusting method of audio frequency apparatus as described above is realized when program is executed by the processor
Suddenly.
Preferably, the audio frequency apparatus includes loudspeaker and microphone.
Effect adjusting method, audio frequency apparatus and the computer readable storage medium of audio frequency apparatus provided by the invention, pass through
The initial reverberation time for obtaining detection signal measurement environment space, then according to the initial reverberation time to the detection signal
Apply first object model, obtain the first test signal generated based on the first object model and obtains first survey
The test reverberation time of the corresponding measurement environment space of trial signal, then when receiving the preset target reverberation time, to described
The test reverberation time is adjusted, and obtains the second object module, and the second test generated based on second object module
Signal further obtains the current reverberation time of the second test signal measurement environment space, finally in the current reverberation
When the difference of time and the target reverberation time meet preset range, second object module is exported, is broadcast with carrying out audio
It puts.In this way, carrying out test by the audition room current to user obtains corresponding initial reverberation time, then to the parameter into
Row optimization can improve reverberation effect with specific aim, to improve the audition experience of hearer.
Detailed description of the invention
Fig. 1 is the functional block diagram for one embodiment of audio frequency apparatus that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of the effect adjusting method first embodiment of audio frequency apparatus of the present invention；
Fig. 3 is the schematic diagram that RMR room reverb is generated when audio frequency apparatus such as intelligent sound box plays；
Fig. 4 is the refinement flow diagram of step S3 in Fig. 2；
Fig. 5 is the refinement flow diagram of step S1 in Fig. 2；
Fig. 6 is the refinement flow diagram of step S14 in Fig. 5.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 1, audio frequency apparatus of the invention includes: processor 1001, such as CPU, user interface 1002, memory
1003, communication bus 1004, loudspeaker 1005, microphone 1006 and bluetooth module 1007.Wherein, communication bus 1004 is for real
Connection communication between these existing components.User interface 1002 may include input unit.Loudspeaker 1005 are for playing the inspection
Signal is surveyed, microphone 1006 collects the reverb signal that the environment space generates.
Memory 1003 can be high speed RAM memory, be also possible to stable memory (non-volatile
), such as magnetic disk storage memory.Memory 1003 optionally can also be the storage dress independently of aforementioned processor 1001
It sets.For storing the environmental information of various occasions.
It will be understood by those skilled in the art that audio frequency apparatus shown in Fig. 1 does not constitute the restriction to audio frequency apparatus, it can
To include perhaps combining certain components or different component layouts than illustrating more or fewer components.
As may include operating system, network communication module, use in a kind of memory 1003 of computer storage medium
The audio of family interface module and audio frequency apparatus adjusts program.
User interface 1002 is mainly used for reception user and passes through input unit input instruction triggers user instruction；Processor
1001 for calling the audio of the audio frequency apparatus stored in memory 1003 to adjust program, and executes following operation:
Obtain the initial reverberation time of detection signal measurement environment space；
First object model is applied to the detection signal according to the initial reverberation time, is obtained based on first mesh
The first test signal that model generates is marked, and obtains the test reverberation of the corresponding measurement environment space of the first test signal
Time；
When receiving the preset target reverberation time, the test reverberation time is adjusted, the second target is obtained
Model, and the second test signal generated based on second object module；
Obtain the current reverberation time of the second test signal measurement environment space；
When the difference of the current reverberation time and the target reverberation time meet preset range, output described second
Object module, to carry out audio broadcasting.
Further, processor 1001 can call the audio of the audio frequency apparatus stored in memory 1003 to adjust program,
Also execute following operation:
When receiving the target reverberation time, the type of the first object model is obtained；
The first object model type be basic reverberation unit model when, adjust delay factor and/or decaying because
Subparameter；
When the type of the first object model is open interface reverberation model, between adjusting early inverse time and/or psychrometric ratio
Parameter；
According to the test reverberation time adjusted, second target corresponding with test reverberation time adjusted is obtained
Model.
Further, processor 1001 can call the audio of the audio frequency apparatus stored in memory 1003 to adjust program,
Also execute following operation:
The input function based on the detection signal played through the loudspeaker is obtained, and is generated through the environment space
It is collected after reverberation to the output function of the microphone；
Transmission function is calculated according to the input function and the output function；
Inverse Laplace transform is made to the transmission function, obtains impulse response function；
The initial reverberation time is extrapolated according to the impulse response function.
Further, processor 1001 can call the audio of the audio frequency apparatus stored in memory 1003 to adjust program,
Also execute following operation:
According to the impulse response function, Energy Decay Curve is obtained；
The detection signal is obtained to decay in predetermined decibel range the attenuation decibel of predetermined quantity and between die-away time
Corresponding relationship；
According to the attenuation decibel of the predetermined quantity and the corresponding relationship between die-away time, it is bent to calculate the energy attenuation
The slope of line；
The detection signal is extrapolated according to the slope to decay 60 decibels of corresponding die-away times, is obtained described initial mixed
Ring the time.
Further, processor 1001 can call the audio of the audio frequency apparatus stored in memory 1003 to adjust program,
Also execute following operation:
When the difference of the current reverberation time and the target reverberation time are unsatisfactory for preset range, re-execute pair
The step of test reverberation time is adjusted.
Referring to Fig. 2, in the first embodiment, the present invention provides a kind of effect adjusting method of audio frequency apparatus, including following
Step:
Step S1, the initial reverberation time of detection signal measurement environment space is obtained；
In the present embodiment, the audio frequency apparatus includes loudspeaker and microphone.When Fig. 3 is that audio frequency apparatus such as intelligent sound box plays
Generate the schematic diagram of RMR room reverb, in which:
D1 is first sound that microphone receives loudspeaker broadcasting, that is, direct sound wave, it determines the clarity of sound,
Transfer the directional informations such as sound source content, direction and position；What d2 and d3 was that microphone receives subsequent several is obviously separated by
The sound opened, i.e. " early reflected sound ", the early reflected sound in 50ms can effectively promote the dynamics and clarity of direct sound wave, but too strong
It will affect Sound image localization；D4 and d5 and sound in an unbroken line below are called " late reverberation sound ", it can make sound field become equal
It is even, sound quality is plentiful, people can be helped to distinguish the enclosure space characteristic of environment space, such as room volume and spatial altitude, but it
Not comprising information content, masking effect can be generated to direct sound wave, reduce the clarity of sound, in addition, be more than the reverberation sound of 100ms then
It will become echo.
Wherein, the detection signal can be any in swept-frequency signal, steady-state noise signal or pulse signal.Work as primary sound
When source is pulse signal, the reverberation for detecting signal is the multi-time weighted superposition of acoustic source, is equivalent to acoustic source and impulse response
Convolution.
The environment space is the current audition room of user, carries out test acquisition by the audition room current to user
Then corresponding initial reverberation time optimizes the parameter, the optimization to particular space result of broadcast may be implemented, thus
Improve user experience.
Step S2, first object model is applied to the detection signal according to the initial reverberation time, obtained based on institute
The first test signal of first object model generation is stated, and obtain the corresponding measurement environment space of the first test signal
Test the reverberation time；
In the present embodiment, the corresponding relationship between the initial reverberation time and first object model can be preset,
Such as when the initial reverberation time is 0.3s, corresponding first object model is language recording studio；When the initial reverberation
Between be 0.4s when, corresponding first object model be strong sound-absorbing recording studio；When the initial reverberation time is 1s, corresponding the
One object module is cinema, etc..It is, of course, also possible to determine corresponding in conjunction with parameters such as room-size or room types
One object module.
The first object model can specifically be divided according to the different function in room are as follows: gymnasium, music hall, opera
Institute, multifunctional hall, hall, threatre, cinema, stereo movie, music recording room (natural audio mixing), strong sound-absorbing recording studio
(recording of multichannel branch), language recording studio etc., table one specific as follows:
Table one
It is available to be based on institute when applying first object model to the detection signal according to the initial reverberation time
State the first test signal of first object model generation.
When with original detection signal measurement environment space, initial reverberation time T is obtained0, the is being applied to detection signal
After one object module, new reverberation measurement source of sound is generated, and in this, as new test source of sound, i.e., the first test signal, to survey
Try the test reverberation time T of environment space1, at this point, due to being superimposed two reverberation (in environment space reverberation and reverberation model
Reverberation), therefore, T1> T0。
Step S3, when receiving the preset target reverberation time, the test reverberation time is adjusted, obtains
Two object modules, and the second test signal generated based on second object module；
In the present embodiment, the target reverberation time can be preset experience value, table one as above；Or it adjusts
Sound teacher oneself reverberation time predetermined needs to do a large amount of subjective experience test before definition.
When the target reverberation time and the test reverberation time are inconsistent, the test reverberation time is adjusted
Whole, the test reverberation time by adjusting after obtains corresponding second object module.Specifically, when according to the initial reverberation
Between to the detection signal apply first object model such as Speech Record tone chamber, obtain test corresponding with the first object model
Reverberation time is 0.3~0.4s, and the target reverberation time is 0.6s, and therefore, it is necessary to carry out the test reverberation time
It adjusts to 0.6s, at this point, corresponding second object module is strong sound-absorbing recording studio.Then described the is applied to the detection signal
Two object modules generate new reverberation measurement source of sound, i.e., the second test signal.
Step S4, the current reverberation time of the second test signal measurement environment space is obtained；
Step S5, when the difference in the current reverberation time and the target reverberation time meets preset range, output
Second object module, to carry out audio broadcasting.
In the present embodiment, with the second test signal measurement environment space, the current reverberation time of the environment space is obtained,
And be compared the current reverberation time with the target reverberation time, judge the current reverberation time and the target
Whether the error range of reverberation time meets preset range, specifically, calculates the current reverberation time and the target reverberation
The difference of time exports the second object module, then when the difference meets preset range such as -25ms~25ms for described
Audio frequency apparatus carries out audio broadcasting；When the difference is unsatisfactory for preset range such as -25ms~25ms, then S2 is re-execute the steps
In the step of test reverberation time is adjusted.
The effect adjusting method of audio frequency apparatus provided by the invention, by obtaining the initial of detection signal measurement environment space
Then reverberation time applies first object model to the detection signal according to the initial reverberation time, obtains based on described
The the first test signal and obtain the described first survey for corresponding to measurement environment space for testing signal that first object model generates
The reverberation time is tried, then when receiving the preset target reverberation time, the test reverberation time is adjusted, obtains second
Object module, and based on the second test signal that second object module generates, further obtain the second test letter
It is the current reverberation time of number measurement environment space, finally full in the difference of the current reverberation time and the target reverberation time
When sufficient preset range, second object module is exported, to carry out audio broadcasting.In this way, passing through the audition room current to user
Between carry out test and obtain corresponding initial reverberation time, then the parameter is optimized, reverberation effect can be improved with specific aim,
To improve the audition experience of hearer.
Referring to Fig. 4, in a second embodiment, it is based on first embodiment, to receive target mixed described in the step S3
When ringing the time, the step of being adjusted to the test reverberation time, includes:
Step S31, when receiving the target reverberation time, the type of the first object model is obtained；
Step S32, the type of the first object model be basic reverberation unit model when, adjustment delay factor and/
Or decay factor parameter；
In the present embodiment, the type of the first object model includes basic reverberation unit model and open interface reverberation mould
Type, wherein the basic reverberation unit model is the most basic unit of various models in the above-mentioned table one of composition, and the open boundary
Face reverberation model refers to " human-computer interaction " interface provided in software or application program, and can be self-regulated certain keys for user
Parameter.
When receiving the target reverberation time, the type of the first object model is obtained, if the first object
The type of model is basic reverberation unit model, then the adjustable delay factor, or adjustment decay factor or the delay
The factor and the decay factor.It is understood that the parameter specifically adjusted is not limited thereto two kinds, it can be according to practical feelings
Condition is rationally arranged.
Step S33, when the type of the first object model is open interface reverberation model, between adjusting early inverse time and/
Or psychrometric ratio parameter；
If the type of the first object model is open interface reverberation model, between the adjustable early inverse time, or
It adjusts between psychrometric ratio parameter or the early inverse time and the psychrometric ratio parameter.It is understood that the parameter specifically adjusted is not
This two kinds are confined to, can be rationally arranged according to the actual situation.
It is understood that delay factor and decay factor are inner parameters, surface is reacted in the parameters such as psychrometric ratio.
Therefore, by carrying out the adjusting of psychrometric ratio parameter in open interface reverberation model, it can be convenient user according to oneself practical need
It wants, is simply operated.
Referring to Fig. 5, in the third embodiment, it is based on first embodiment, the step S1 includes:
Step S11, the input function based on the detection signal played through the loudspeaker is obtained, and through the environment
It collects after generating reverberation to the output function of the microphone in space；
It, can be using the environment space as a system, the detection signal of the loudspeaker broadcasting in the present embodiment
It is equivalent to the input signal of the environment space, it can be using the input signal as the input function Xi (S) of the system；Institute
It states detection signal and generates RMR room reverb in the environment space, namely received after the processing of the system by the microphone
Collection, obtains the output signal handled through the system, can be using the output signal as the output function Xo of the system
(S)。
Step S12, transmission function is calculated according to the input function and the output function；
Step S13, inverse Laplace transform is made to the transmission function, obtains impulse response function；
In the present embodiment, transmission function G is calculated according to the input function Xi (S) and the output function Xo (S)
(S):
G (S)=Xi (S)/Xo (S)；Wherein, S indicates plural number, is the independent variable of Laplace transform.
When the transmission function is calculated, inverse Laplace transform is made to the transmission function, obtains the pulse
Receptance function.
Step S14, the initial reverberation time is extrapolated according to the impulse response function.
In the present embodiment, when the impulse response function is calculated, corresponding Energy Decay Curve can be obtained, it can
It, certainly, in other embodiments, can also be according to public affairs to extrapolate the initial reverberation time according to the Energy Decay Curve
Formula is calculated, and does not make concrete example explanation herein.
The present embodiment carries out test by the audition room current to user and obtains corresponding initial reverberation time, then right
The parameter optimizes, and the optimization to particular space result of broadcast may be implemented, to improve the audition experience of user.
Referring to Fig. 6, in the fourth embodiment, it is based on 3rd embodiment, the step S14 includes:
Step S141, according to the impulse response function, Energy Decay Curve is obtained；
Step S142, obtain the detection signal decay the attenuation decibel of predetermined quantity and decaying in predetermined decibel range when
Between between corresponding relationship；
In the present embodiment, when obtaining Energy Decay Curve according to the impulse response function, the available detection
Signal is decayed predetermined decibel range such as the multiple decibels of -5dB~-25dB and the corresponding relationship between die-away time.Specifically, false
If when the detection signal decaying 5dB, corresponding die-away time is 10ms；It is corresponding to decline when the detection signal decaying 10dB
Subtracting the time is 40ms；When the detection signal decaying 15dB, corresponding die-away time is 100ms；The detection signal decaying
When 25dB, corresponding die-away time is 260ms, etc..
Step S143, according to the attenuation decibel of the predetermined quantity and the corresponding relationship between die-away time, described in calculating
The slope of Energy Decay Curve；
In the present embodiment, the predetermined quantity can be 2 or multiple, and particular number can be reasonable with the actual form of curve
Selection, can also be rationally arranged according to customized standard.According to the corresponding pass between above three attenuation decibel and die-away time
System, the slope that the Energy Decay Curve is calculated is -0.07.
Step S144, the detection signal is extrapolated according to the slope to decay 60 decibels of corresponding die-away times, obtain
The initial reverberation time.
In the present embodiment, since the slope being calculated is 0.5, then the detection signal decaying 60 can be extrapolated
Decibel corresponding die-away time is 780ms to get the initial reverberation time is arrived.
The present embodiment chooses 2 or on a small quantity multiple attenuation decibels and the corresponding relationship between die-away time, meter due to only needing
Calculation obtains slope, and the detection signal can be obtained according to the slope and is decayed 60 decibels of corresponding die-away times, therefore, calculates
Amount is smaller, can quickly reflect the substantially situation of the distance between practical auditor and sound source such as singer and ambient enviroment.
The present invention also provides a kind of audio frequency apparatus, the audio frequency apparatus includes processor and is stored in the processor
And the audio for the audio frequency apparatus that can be run on the processor adjusts program, wherein the audio of the audio frequency apparatus adjusts journey
Sequence realizes the step of effect adjusting method of audio frequency apparatus as described above when being executed by the processor.
Further, the audio frequency apparatus can be intelligent sound box, specifically include loudspeaker and microphone.The loudspeaker are used for
The detection signal is played, the microphone is used to collect the reverb signal that the environment space generates.
The present invention also provides a kind of computer readable storage mediums, which is characterized in that the computer readable storage medium
On be stored with the audio of audio frequency apparatus and adjust program, the audio of the audio frequency apparatus adjusts program, and to be executed by processor realization as above
The step of effect adjusting method of the audio frequency apparatus.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, controlled terminal or network equipment etc.) execute method described in each embodiment of the present invention.
Claims (10)
1. a kind of effect adjusting method of audio frequency apparatus, which is characterized in that the effect adjusting method of the audio frequency apparatus include with
Lower step:
Obtain the initial reverberation time of detection signal measurement environment space；
First object model is applied to the detection signal according to the initial reverberation time, is obtained based on the first object mould
First test signal of type generation, and obtain when corresponding to the test reverberation for measuring environment space of the first test signal
Between；
When receiving the preset target reverberation time, the test reverberation time is adjusted, the second object module is obtained,
And the second test signal generated based on second object module；
Obtain the current reverberation time of the second test signal measurement environment space；
When the difference of the current reverberation time and the target reverberation time meet preset range, second target is exported
Model, to carry out audio broadcasting.
2. the effect adjusting method of audio frequency apparatus as described in claim 1, which is characterized in that described to receive target reverberation
When the time, the step of being adjusted to the test reverberation time, includes:
When receiving the target reverberation time, the type of the first object model is obtained；
When the type of the first object model is basic reverberation unit model, delay factor and/or decay factor ginseng are adjusted
Number；
When the type of the first object model is open interface reverberation model, between adjusting early inverse time and/or psychrometric ratio parameter；
According to the test reverberation time adjusted, second target mould corresponding with test reverberation time adjusted is obtained
Type.
3. the effect adjusting method of audio frequency apparatus as described in claim 1, which is characterized in that the audio frequency apparatus includes loudspeaker
And microphone, described the step of obtaining the initial reverberation time for detecting signal measurement environment space, include:
The input function based on the detection signal played through the loudspeaker is obtained, and generates reverberation through the environment space
It is collected afterwards to the output function of the microphone；
Transmission function is calculated according to the input function and the output function；
Inverse Laplace transform is made to the transmission function, obtains impulse response function；
The initial reverberation time is extrapolated according to the impulse response function.
4. the effect adjusting method of audio frequency apparatus as claimed in claim 3, which is characterized in that described according to the impulse response
Function extrapolates the step of initial reverberation time and includes:
According to the impulse response function, Energy Decay Curve is obtained；
The detection signal is obtained to decay in predetermined decibel range the attenuation decibel of predetermined quantity and corresponding between die-away time
Relationship；
According to the attenuation decibel of the predetermined quantity and the corresponding relationship between die-away time, the Energy Decay Curve is calculated
Slope；
It extrapolates the detection signal according to the slope to decay 60 decibels of corresponding die-away times, when obtaining the initial reverberation
Between.
5. the effect adjusting method of audio frequency apparatus as described in claim 1, which is characterized in that described to obtain second test
After the step of current reverberation time of signal measurement environment space further include:
When the difference of the current reverberation time and the target reverberation time are unsatisfactory for preset range, re-execute to described
The step of test reverberation time is adjusted.
6. the effect adjusting method of audio frequency apparatus as described in claim 1, which is characterized in that the preset range are as follows: -25ms
~25ms.
7. such as the effect adjusting method of audio frequency apparatus described in any one of claims 1 to 6, which is characterized in that the detection
Signal is any in swept-frequency signal, steady-state noise signal or pulse signal.
8. a kind of audio frequency apparatus, which is characterized in that the audio frequency apparatus includes processor and is stored in the processor simultaneously
The audio for the audio frequency apparatus that can be run on the processor adjusts program, wherein the audio of the audio frequency apparatus adjusts program
The effect adjusting method of audio frequency apparatus described in any one of claims 1 to 7 as above is realized when being executed by the processor
Step.
9. audio frequency apparatus as claimed in claim 8, which is characterized in that the audio frequency apparatus includes loudspeaker and microphone.
10. a kind of computer readable storage medium, which is characterized in that be stored with audio on the computer readable storage medium and set
Standby audio adjusts program, and the audio of the audio frequency apparatus adjusts program and is executed by processor realization as appointed in claim 1 to 7
The step of effect adjusting method of audio frequency apparatus described in one.
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