CN104144374B - Assisting hearing method and system based on mobile device - Google Patents

Assisting hearing method and system based on mobile device Download PDF

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CN104144374B
CN104144374B CN201310163702.7A CN201310163702A CN104144374B CN 104144374 B CN104144374 B CN 104144374B CN 201310163702 A CN201310163702 A CN 201310163702A CN 104144374 B CN104144374 B CN 104144374B
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frequency
user
threshold
audibility
hearing
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CN104144374A (en
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雍雅琴
蒋斌
林福辉
常广鸣
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Abstract

The invention provides a kind of assisting hearing method and system based on mobile device, methods described includes：The test tone of multiple frequencies is exported, to test the threshold of audibility of the user under the multiple frequency, and audiogram is generated according to the threshold of audibility of the user under the multiple frequency；The hearing loss types of the user are judged according to the audiogram, corresponding apolegamy prescriptive formula is selected according to the hearing loss types；The testing with parameter of the user is determined according to the apolegamy prescriptive formula and audiogram；Gather voice signal, and according to the user test with parameter to the voice signal make improve speech discrimination score processing after play out.The present invention can utilize the hearing loss situation of mobile device test user, and the audiogram of user is recorded automatically, automatic test is carried out according to different user audiogram to match somebody with somebody, targetedly carry out hearing compensation, so as to by the audiometry function of audiometer, hearing aid fitting software to test the function with function and audiphone integrated.

Description

Assisting hearing method and system based on mobile device
Technical field
The present invention relates to a kind of assisting hearing method and system based on mobile device.
Background technology
China is the country that dysaudia number is most in the world, existing dysaudia people about 60,000,000, Most patients Assisting hearing equipment is needed to carry out hearing compensation.With the aggravation of aging society, dysaudia number constantly increases, hearing barrier Problem is hindered to cause the close attention of people.Audiphone is a kind of Medical Devices of conventional compensation hearing loss, will by it Sound amplifies, and maximally utilises the residual hearing for the person that listens to barrier, is allowed to hear the original sound that can't hear or do not hear, improves The hearing level of patient.
At present, the audiphone of in the market is mostly external product, and middle and high end audiphone is digital deaf-aid, and price is thousands of To ten thousand yuan, expensive, ordinary people can not worn, and low side audiphone is mostly simulation audiphone, and wearing effect is bad, not only The hearing situation of user can not be improved, it is also possible to damage the residual hearing of hearing loss person, further aggravate hearing loss journey Degree.In addition, user needs to ask hearing aid fitting Shi Jinhang hearing tests to special chinic, tests and match somebody with somebody and the later stage to wear hearing aid The operation such as return visit, is difficult to for the underdeveloped regional crowd of medical and health conditions.In addition, audiphone is as a kind of Medical Devices, wear hearing aid can expose the physiological defect of user, and most of wearers are reluctant that it oneself is hearing to allow other people to know Disabled person.
Therefore, user needs a kind of hearing-aid method or system badly at present, can make hearing survey by shirtsleeve operation for user Try and test after matching somebody with somebody, hearing-aid function can be realized, be user-friendly, and the physiological defect of user itself will not be exposed.
The content of the invention
It is an object of the invention to provide a kind of assisting hearing method and system based on mobile device, can be set in movement The function of audiphone is realized on standby, improves the hearing level of user.
To solve the above problems, the present invention provides a kind of assisting hearing method based on mobile device, including：
The test tone of multiple frequencies is exported, to test the threshold of audibility of the user under the multiple frequency, and according to the user Threshold of audibility generation audiogram under the multiple frequency；
The hearing loss types of the user are judged according to the audiogram, are selected according to the hearing loss types Corresponding apolegamy prescriptive formula；
The testing with parameter of the user is determined according to the apolegamy prescriptive formula and audiogram；
Voice signal is gathered, and the voice signal is made with parameter to improve speech discrimination score according to testing for the user Played out after processing.
Further, in the above-mentioned methods, the test tone of multiple frequencies is exported, user is under the multiple frequency for test The threshold of audibility, and include the step of generate audiogram according to the threshold of audibility of the user under the multiple frequency：
The test tone of multiple frequencies is sequentially output, and tests the threshold of audibility of the user under the multiple frequency successively；
If threshold of audibility difference of the user under first frequency and last frequency is less than or equal to 5dBHL, two are judged Whether the threshold of audibility difference of individual frequency multiplication frequency is more than or equal to 20dBHL；If it is not, according to the user under the multiple frequency The threshold of audibility generates audiogram；If so, the threshold of audibility of half frequency multiplication frequency between then testing described two frequency multiplication frequencies, and according to institute State the threshold of audibility generation audiogram of the threshold of audibility and the user of half frequency multiplication frequency under the multiple frequency；
If threshold of audibility difference of the user under first frequency and last frequency is more than 5dBHL, test successively again The threshold of audibility of the user under the multiple frequency, until first frequency is differed with the threshold of audibility under last frequency and be less than or equal to Untill 5dBHL, and judge whether the threshold of audibility difference of two frequency multiplication frequencies is more than or equal to 20dBHL, if it is not, according to last time Threshold of audibility generation audiogram of the user of test under the multiple frequency；If so, then test described two frequency multiplication frequencies it Between half frequency multiplication frequency the threshold of audibility, and according to the user of the threshold of audibility of half frequency multiplication frequency and last time test in the multiple frequency Under the threshold of audibility generation audiogram.
Further, in the above-mentioned methods, first frequency is identical with last frequency in the multiple frequency.
Further, in the above-mentioned methods, the multiple frequency includes：1000Hz、2000Hz、3000Hz、4000Hz、 6000Hz、8000Hz、250Hz、500Hz、1000Hz。
Further, in the above-mentioned methods, the step of testing the threshold of audibility of user at each of the frequencies includes：
Step 1：Hearing level initial value of the user under current frequency is obtained, and starts to export test tone, the test tone Initial hearing level subtract 10dBHL for hearing level initial value of the user under current frequency, if user does not hear test tone, with Mono- grade of increase intensity of 5dBHL, until user hears test tone；
Step 2：After user hears test tone, with mono- grade of reduction intensity of 10dBHL, until user does not hear test tone, then With mono- grade of increase intensity of 5dBHL, until user hears test tone, then the current hearing level of the test tone is recorded；
Repeat step 2 three times more than after, judge whether the current hearing level that wherein records three times is same hearing Level, if it is not, continue executing with step 2 three times more than, until the hearing level current three times recorded again is untill same hearing level, The same hearing level is then recorded as the threshold of audibility under the current frequency.
Further, in the above-mentioned methods, the hearing loss types include conduction deafness, perceptive deafness and Combination It is deaf.
Further, in the above-mentioned methods, when the hearing loss types are perceptive deafness, select at corresponding apolegamy Square formula is POGO or NAL-RP.
Further, in the above-mentioned methods, when the hearing loss types are conduction deafness or mixed deafness, phase is selected The apolegamy prescriptive formula answered is DSL [i/o] or IHAFF.
Further, in the above-mentioned methods, determine the user's according to the apolegamy prescriptive formula and audiogram Testing the step of matching somebody with somebody parameter includes：
Each frequency partition is entered into corresponding passage；
Obtain default pain domain and flex point；
The input-output curve of each passage is determined according to the apolegamy prescriptive formula and audiogram；
The linear, amplification portion of each input-output curve and non-is determined according to the input-output curve, pain domain and flex point The insertion gain of linear, amplification portion.
Further, in the above-mentioned methods, voice signal, and testing with parameter to the voice according to the user are gathered The step of being played out after the processing of signal work raising speech discrimination score includes：
Voice signal is gathered, and LPF is carried out to the voice signal；
Voice signal after LPF is subjected to analog-to-digital conversion, to generate data signal；
According to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section to the number Word signal makees the processing of multichannel compensating for frequency response；
Data signal by the processing of multichannel compensating for frequency response is subjected to digital-to-analogue conversion, to generate voice and be broadcast Put.
Further, in the above-mentioned methods, voice signal, and testing with parameter to the voice according to the user are gathered The step of being played out after the processing of signal work raising speech discrimination score includes：
Voice signal is gathered, and LPF is carried out to the voice signal；
Voice signal after LPF is subjected to analog-to-digital conversion, to generate data signal；
Make the processing of speech enhan-cement to the data signal；
According to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section to by language The data signal of sound enhancing processing makees the processing of multichannel compensating for frequency response；
Data signal by the processing of multichannel compensating for frequency response is subjected to digital-to-analogue conversion, to generate voice and be broadcast Put.
Further, in the above-mentioned methods, when mobile device is single Mike, the method for the processing of the speech enhan-cement is Using the comb filter method of the quasi periodic denoising of voice, the Kalman filtering method based on model class, based on spectral amplitude estimation Any of spectrum-subtraction or Wiener Filter Method of class.
Further, in the above-mentioned methods, when mobile device is microphone array, the side of the processing of the speech enhan-cement Method is the undistorted response Beam-former of the minimum variance in Adaptive beamformer method, linear restriction minimum method wave beam shape Grow up to be a useful person or any of generalized side lobe canceller.
Further, in the above-mentioned methods, the processing method of the multichannel compensating for frequency response is following any：
Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or
Multiple harmonic oscillators are coordinated to add to digital signal frequency split, and by each railway digital signal after frequency dividing using comb filter Power is added output；Or
Using LOUDNESS formula and frequency domain sampling FIR filter design method, according to frequency domain gain design time-domain filtering Device, to the digital signal filter of input.
Further, in the above-mentioned methods, the test tone is the one or more in pure tone, twiter sound or pulse sound.
According to the another side of the present invention, there is provided a kind of assisting hearing system based on mobile device, including：
Audiometry module, for exporting the test tone of multiple frequencies, to test the threshold of audibility of the user under the multiple frequency, and Audiogram is generated according to the threshold of audibility of the user under the multiple frequency；
Test and match somebody with somebody module, for judging the hearing loss types of the user according to the audiogram, listened according to described Power loss type selecting matches prescriptive formula accordingly, and the user is determined according to the apolegamy prescriptive formula and audiogram Test with parameter；
Assisting hearing module, for gathering voice signal, and testing with parameter to the voice signal according to the user Played out after making the processing of raising speech discrimination score.
Further, in said system, the audiometry module includes：
Output unit, for being sequentially output the test tone of multiple frequencies；
Audiogram unit, for testing the threshold of audibility of the user under the multiple frequency successively；If user is at first Frequency is less than or equal to 5dBHL with the threshold of audibility difference under last frequency, then judges the threshold of audibility difference of two frequency multiplication frequencies and be It is no to be more than or equal to 20dBHL；If it is not, audiogram is generated according to the threshold of audibility of the user under the multiple frequency；If The threshold of audibility for the half frequency multiplication frequency then tested between described two frequency multiplication frequencies, and according to the threshold of audibility of the half frequency multiplication frequency and Threshold of audibility generation audiogram of the user under the multiple frequency；If user is in first frequency and last frequency Under threshold of audibility difference be more than 5dBHL, then the threshold of audibility of the user under the multiple frequency is tested successively again, until first frequency Differed with the threshold of audibility under last frequency untill being less than or equal to 5dBHL, and judge that the threshold of audibility of two frequency multiplication frequencies differs to be It is no to be more than or equal to 20dBHL, if it is not, generating hearing according to the threshold of audibility of the user of last time test under the multiple frequency Curve map；If so, the threshold of audibility of half frequency multiplication frequency between then testing described two frequency multiplication frequencies, and listening according to half frequency multiplication frequency Threshold of audibility generation audiogram of the user of threshold and last time test under the multiple frequency.
Further, in said system, the output unit exports in multiple frequencies first frequency and last Frequency is identical.
Further, in said system, the output unit, which exports multiple frequencies, to be included：1000Hz、2000Hz、 3000Hz、4000Hz、6000Hz、8000Hz、250Hz、500Hz、1000Hz。
Further, in said system, audiogram unit, for obtaining hearing level of the user under current frequency Initial value, and start to export test tone, the initial hearing level of the test tone is initial for hearing level of the user under current frequency Value subtracts 10dBHL, if user does not hear test tone, with mono- grade of increase intensity of 5dBHL, until user hears test tone；Perform three Secondary above threshold of audibility test：After user hears test tone, with mono- grade of reduction intensity of 10dBHL, until user does not hear test tone, then With mono- grade of increase intensity of 5dBHL, until user hears test tone, then the current hearing level of the test tone is recorded；Judge wherein three Whether the current hearing level of secondary record is same hearing level, if it is not, above threshold of audibility test three times is continued executing with, until recording again Hearing level current three times be same hearing level untill, then record the same hearing level as the threshold of audibility under the current frequency.
Further, in said system, the hearing loss types judged with module of testing include conduction deafness, sense Sound is deaf and mixed deafness.
Further, in said system, when the hearing loss types are perceptive deafness, described test selects with module Corresponding apolegamy prescriptive formula is POGO or NAL-RP, when the hearing loss types are conduction deafness or mixed deafness, institute State to test and select to match prescriptive formula accordingly with module to be DSL [i/o] or IHAFF.
Further, it is described to test with module in said system, for each frequency partition to be entered into corresponding passage；Obtain Take default pain domain and flex point；Determine that the input and output of each passage are bent according to the apolegamy prescriptive formula and audiogram Line；The linear, amplification portion of each input-output curve and non-linear is determined according to the input-output curve, pain domain and flex point The insertion gain of amplifier section.
Further, in said system, the assisting hearing module includes：
Low-pass filter unit, LPF is carried out for gathering voice signal, and to the voice signal；
AD conversion unit, for the voice signal after LPF to be carried out into analog-to-digital conversion, with generation numeral letter Number；
Compensating for frequency response unit, for the linear, amplification portion according to each input-output curve and non-linear amplifier section The processing of multichannel compensating for frequency response is made in insertion gain to the data signal；
D/A conversion unit, for the data signal by the processing of multichannel compensating for frequency response to be carried out into digital-to-analogue conversion, with Generation voice simultaneously plays out.
Further, in said system, the assisting hearing module also includes speech enhancement unit, for the number Word signal makees the processing of speech enhan-cement.
Further, in said system, when mobile device is single Mike, the processing of the speech enhancement unit use Method is using the comb filter method of the quasi periodic denoising of voice, the Kalman filtering method based on model class, based on spectrum amplitude Any of spectrum-subtraction or Wiener Filter Method of degree estimation class.
Further, in said system, when mobile device is microphone array, what the speech enhancement unit used Processing method is the undistorted response Beam-former of the minimum variance in Adaptive beamformer method, linear restriction minimum method Any of Beam-former or generalized side lobe canceller.
Further, in said system, the processing method for the multichannel compensating for frequency response that the compensating for frequency response unit uses To be following any：
Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or
Multiple harmonic oscillators are coordinated to add to digital signal frequency split, and by each railway digital signal after frequency dividing using comb filter Power is added output；Or
Using LOUDNESS formula and frequency domain sampling FIR filter design method, according to frequency domain gain design time-domain filtering Device, to the digital signal filter of input.
Further, in said system, the audiometry module exports the test tone as in pure tone, twiter sound or pulse sound One or more.Compared with prior art, the test tone of the invention by exporting different frequency, test and record user be not The threshold of audibility under same frequency, and audiogram is generated according to the threshold of audibility of user at different frequencies, according to the audiogram Judge the hearing loss types of user, corresponding apolegamy prescriptive formula is selected according to the hearing loss types, according to the choosing The testing with parameter of user is determined with prescriptive formula and audiogram, and gathers voice signal, further according to testing with parameter for user Played out after making the processing of raising speech discrimination score to the voice signal, the hearing of mobile device test user can be utilized Damaed cordition, and the audiogram of user is recorded automatically, carrying out automatic test according to different user audiogram matches somebody with somebody, and is directed to Property carry out hearing compensation, so as to by the audiometry function of audiometer, the function of testing with function and audiphone of hearing aid fitting software It is integrated.
In addition, assisting hearing method or system based on mobile device will not expose use while being user-friendly The physiological defect at family itself.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the assisting hearing method based on mobile device of the embodiment of the present invention one；
Fig. 2 is the step S1 of the embodiment of the present invention one schematic flow sheet；
Fig. 3 is the step S12 of the embodiment of the present invention one schematic flow sheet；
Fig. 4 is the step S4 of the embodiment of the present invention one the first schematic flow sheet；
Fig. 5 is the step S4 of the embodiment of the present invention one second of schematic flow sheet；
Fig. 6 is the audiogram of sensorineural deafness；
Fig. 7 is the module diagram of the assisting hearing system based on mobile device of the embodiment of the present invention two.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is further detailed explanation.
Embodiment one
The present invention provides one kind and is based on mobile device（Such as mobile phone）Assisting hearing method, China cellphone subscriber has been at present Up to 1,000,000,000 families, and the price of mobile phone is still declining year by year, and the price of mobile phone is well below audiphone, based on the auxiliary of mobile device Hearing aid power method can share hardware resource with mobile phone, save the development cost of hardware resource.Therefore, based on mobile devices such as mobile phones Designing a kind of assisting hearing method based on mobile device has stronger practicality.
The assisting hearing method based on mobile device of the present embodiment includes step S1 to step S4, with reference to Fig. 1 extremely The assisting hearing method based on mobile device of the present embodiment that Fig. 6 is described in detail.
Step S1, the test tone of multiple frequencies is exported, to test the threshold of audibility of user at multiple frequencies, and according to the use The threshold of audibility generation audiogram of family at multiple frequencies.The effect of this step is to test the hearing loss situation of user, and from The hearing test result of dynamic record user, use can be allowed by the human-computer interaction interface on mobile device and hearing test program Family is in quiet environment, and after wearing earphone, click starts to test, and first can carry out volume calibration to mobile device, then start Hearing user is tested, and records the audiogram of user automatically.
Wherein, the test tone can be one or more in pure tone, twiter sound or pulse sound.Specifically, according to tester Age and test case to select pure tone, twiter sound or pulse sound, in general, old man using twitering the more of sound, more can by sound of twitering Cause the attention of tested people；And young man's reflection is fast, using the in the majority of pure tone test, pulse sound is the pure tone of interruption, pulse Sound and pure tone are used interchangeably.Electroacoustics principle can be utilized on the mobile apparatus, pass through the circuits such as electronic, amplification, decay Different frequency and the test tone of intensity are produced, can also store test signal in a mobile device, is played simultaneously using player software Audiometry, by parameter setting, different frequency and the test tone of intensity are sent, and it is defeated by the audio output device on mobile device Go out test tone.Before the threshold of audibility of official testing and record user at different frequencies, first it can be carried out using subjective calibration check Volume is calibrated, and before volume calibration is carried out, first determines to plug in the earphone on the mobile apparatus, is then carried out under the environment of peace and quiet Test, first asks a normal young man of hearing to test, and after normal young man is with good earphone, the volume of mobile device is adjusted To maximum, mobile device sends a test tone, if user can hear a faint test tone, next, first slowly By turning down sound volume, untill test tone disappears, then, then volume is heightened bit by bit, to hearing, normal young man feels Obtain test tone to start to occur stopping again again, will volume definitions be now 0dBHL.Next, volume adjustment knob is fixed, listen Power obstacle person wears earphone, you can starts official testing and records the threshold of audibility of user at different frequencies.
In one embodiment of this invention, step S1 specifically may include step S10~S19, is discussed in detail below in conjunction with Fig. 2 Above-mentioned steps S10~S19.
Step S10, be sequentially output 1000Hz, 2000Hz, 3000Hz, 4000Hz, 6000Hz, 8000Hz, 250Hz, Test tone under 500Hz, 1000Hz.
Step S11, successively test and record user 1000Hz, 2000Hz, 3000Hz, 4000Hz, 6000Hz, The threshold of audibility under 8000Hz, 250Hz, 500Hz, 1000Hz frequency.
Step S12, judges whether first 1000Hz frequency is less than with the threshold of audibility difference under last 1000Hz frequency Or equal to 5dBHL, if so, step S13 is then gone to, if it is not, then going to step S16.
Step S13, judges whether the threshold of audibility difference of two frequency multiplication frequencies is more than or equal to 20dBHL；If it is not, then go to step Rapid S14, if so, then going to step S15；
Step S14, audiogram is generated according to the threshold of audibility of the user under the multiple frequency；
Step S15, the threshold of audibility for the half frequency multiplication frequency tested between described two frequency multiplication frequencies, and according to described half times again and again The threshold of audibility generation audiogram of the threshold of audibility of rate and the user under the multiple frequency；
Step S16, the threshold of audibility of the user under the multiple frequency is tested successively again, up to first frequency and last Untill threshold of audibility difference under individual frequency is less than or equal to 5dBHL, and step S17 is gone to,；
Step S17, judges whether the threshold of audibility difference of two frequency multiplication frequencies is more than or equal to 20dBHL, if it is not, then going to step Rapid S18；If so, then go to step S19.
Step S18, audiogram is generated according to the threshold of audibility of the user of last time test under the multiple frequency；
Step S19, the threshold of audibility for the half frequency multiplication frequency tested between described two frequency multiplication frequencies, and according to half frequency multiplication frequency Threshold of audibility generation audiogram of the user of the threshold of audibility and last time test under the multiple frequency.
Typically first survey preferable ear or strong ear（The preferable ear of hearing）, the poor ear of another hearing is then surveyed, is paid attention to When starting test, a larger sound is preferably first given（20dB or so in threshold value）, allow what patient can be apparent to hear this sound, So as to allow patient to understand this reacts to which type of sound, patient is avoided by other back drops（Such as tinnitus sound）And test tone Mutually obscure, make the reaction of inaccuracy.The species of test tone can also be suitably adjusted, is such as changed to sound of twitering, with tinnitus sound area Not.Sustainable 1~2 second of sound time is given in this step S11, interval time must not be shorter than to the sound time, because being needed after adapting to It is usually 1~2 second to want complete recovery time, in addition, should be irregular to sound time and interval time.The whole testing time must not surpass 20 minutes are spent, otherwise can make subject's fatigue and be difficult to obtain reliable result.
In step S11, test and record user are in each frequency（1000Hz、2000Hz、3000Hz、4000Hz、 6000Hz, 8000Hz, 250Hz, 500Hz or 1000Hz）Under the threshold of audibility the step of can use rise method and lifting and lowering method in any Kind, it is clinically more to use rise method, as shown in figure 3, testing and recording use using rise method in one embodiment of the invention Family is in each frequency（1000Hz, 2000Hz, 3000Hz, 4000Hz, 6000Hz, 8000Hz, 250Hz, 500Hz or 1000Hz）Under The threshold of audibility the step of specifically may include step S111~step S114：
Step S111, hearing level initial value of the user under current frequency is obtained, and start to export test tone, the test The initial hearing level of sound is that hearing level initial value of the user under current frequency subtracts 10dBHL, if user does not hear test tone, With mono- grade of increase intensity of 5dBHL, until user hears test tone.Specifically, the unit of hearing level is dBHL（HL：hearing level）, hearing level is the hearing loss absolute value measured, and the sense of hearing of the mankind is limited, just as temperature during water freezing It is set to 0 degree Celsius equally, the sound for several different frequencies that audiologist can just hear normal young man artificially provides For aural null（0dBHL）, the sound normal person of aural null size can hear reluctantly.
In one embodiment of this invention, in step S111, when current frequency is first 1000Hz frequency, obtains and use The threshold of audibility of the family in the case where 1000Hz, 40dBHL are familiar with testing is as first 1000Hz frequency hearing level initial value, specifically, surveying Before the threshold of audibility under first 1000Hz frequency of examination and record, it can first carry out being familiar with experiment：With the survey of 1000Hz, 40dBHL intensity Subject ear is given in audition, if hearing reluctantly, then per mono- grade of reduction intensity of 20dBHL until user（Patient）It can not hear reluctantly；So Mono- grade of 10dB is incremented by again afterwards, until user patient can hear reluctantly again, records the current threshold of audibility, above-mentioned reduction and is incremented by repeatedly Be familiar with experiment 3 times, if the same hearing level that wherein more than the 2 times current hearing levels recorded are, using the hearing level as Hearing level initial value under one 1000Hz frequency, then it can start to test and record the threshold of audibility under first 1000Hz frequency； Current frequency be in addition to first 1000Hz during frequency, that is, be followed successively by 2000Hz, 3000Hz, 4000Hz, 6000Hz, 8000Hz, 250Hz, 500Hz or 1000Hz（Second 1000Hz）When, obtain the threshold of audibility of the user under a upper frequency and be used as and listen Power level initial value, for example, during 2000Hz, hearing level initial value is used as using the threshold of audibility under first 1000Hz；During 3000Hz, with For the threshold of audibility under 2000Hz as hearing level initial value, the rest may be inferred, will not be repeated here.
Step S112, after user hears test tone, with mono- grade of reduction intensity of 10dBHL, until user does not hear test tone, Again with mono- grade of increase intensity of 5dBHL, until user hears test tone, then the current hearing level of the test tone is recorded.Specifically, such as The hearing extreme difference of subject, should be tested to maximum output intensity of sound.Step S113 is gone to after repeat step S112 five times.
Step S113, whether the current hearing level for judging wherein to record three times is same hearing level, if so, then going to step S114, otherwise, go to step S112.
Step S114, the same hearing level is recorded as the threshold of audibility under current frequency.
Further, can calculate the loss of speech frequency averaging according to audiogram, and on the screen of the mobile terminal to User shows test result.Specifically, on pure-tone average PTA, tri- Frequency points of 500Hz, 1000Hz, 2000Hz are certainly Determine to account for 70% in the importance of the intelligibility of speech, be the critical range for weighing auditory function.Therefore, the World Health Organization uses The average value of these three Frequency point hearing losses of 500Hz, 1000Hz, 2000Hz, the foundation as division Hearing grade.Separately Outside, the World Health Organization promulgated the new criteria for classifying in 1997, and standard than before adds the 4000Hz threshold of audibility, fills Divide the situation for the high frequency hearing loss for considering person hard of hearing, there is certain clinical value, it is now to use the new standard more.Root Deafness is divided into 4 grades according to 500Hz, 1000Hz, 2000Hz and 4000Hz average hearing loss, can be in audiometry After end, test result is shown to user on the screen of the mobile device, test result, test knot can be also reported to user speech Fruit can be as shown in the table：
Test result The speech frequency averaging threshold of audibility（Deafness）
Normally Less than 26dBHL
Mild deafness 26-40dBHL
Moderate is deaf 41-60dBHL
Severe is deaf 61-80dBHL
Pole severe is deaf More than 80dBHL
For example, person hard of hearing 500Hz, 1000Hz, 2000Hz, 4000Hz threshold of audibility be respectively 55dBHL, 50dBHL, 50dBHL, 70dBHL, then his average hearing loss be（55+50+50+70）/ 4=56.25, then during corresponding test result is Spend deaf.
Step S2, the hearing loss types of the user are judged according to the audiogram, according to the hearing loss Type selecting matches prescriptive formula accordingly.Specifically, apolegamy prescriptive formula is a kind of basic apolegamy debugging foundation, according to choosing Determine to test that with prescriptive formula also corresponding adjustment can be done according to the impression after hearing aid and individual difference with parameter, user.
Preferably, hearing loss types described in step S2 can include conduction deafness, perceptive deafness and mixed deafness.Tool Body, the audiogram of normal person can show that bone conduction is 0~20dBHL in each frequency range, and conductance hearing then exists 0~25dBHL, gas, bone conduction spacing are within 10dBHL.Conduction deafness shows as conductance dysacousis and bone conduction is normal, bone Lead curve is normal or close to normally, and for air conduction curve hearing loss between 30~60dBHL, general low frequency hearing loss is heavier, Gas, bone conduction spacing are more than more than 10dBHL, and the audiogram feature of conduction deafness is：The hearing loss of air conduction curve low frequency range Higher-frequency area is very, bone conduction threshold is normal or close to normally.Air conduction hearing threshold is not put down in any frequency in 60dBHL, audiometric curve It is smooth, without the rapid drawdown that rises sharply；Perceptive deafness shows as conductance, BC threshold all improves, no Air-bone gap value（It is same as conductance and bone conduction output Intensity admits of 3~5dBHL error in hearing meter calibrating, therefore the difference that moral character is led just thinks that there is gas more than 10dBHL Bone conduction difference）, the audiogram feature of perceptive deafness is：Gas, bone conduction curve accordingly decline, and low frequency range hearing is preferable, more Tremendously high frequency area hearing loss is heavier, and moral character lead curve is coincide or differed 5dBHL substantially, and audiometric curve can rise sharply rapid drawdown, high frequency region Can there are V, U, W, slope, steep drop, some frequency threshold of audibility losses of conductance can be more than 60dBHL, and more than 8kHz is more to be experienced, gas, bone In paddy shape defect or high frequency hearing, drop person often shows cochlear deafness to lead curve suddenly, is common in noise, pinking, ototoxic deafness；Mixing Deaf AC threshold and the BC threshold of showing as of property all improves, but there is Air-bone gap value, the audiogram feature of mixed deafness to be： Not only bone conduction declines, and air conduction hearing loss is more, audiometric curve can abrupt surge, moral character spacing can be more than in low frequency range 15dBHL, it is common in tympanitis and has noise induced damage or ototoxicity, conduction deafness late period, the lost damage of limitation etc., performance is low Frequency is based on conduction deafness, and moral character has obvious spacing between leading, and high frequency gas, bone conduction decline, and difference is small between the two or disappears.
Preferably, when the hearing loss types are perceptive deafness, it is POGO to select corresponding apolegamy prescriptive formula （Prescription of gain and output, gain and output prescription）Or NAL-RP（National Acoustic Laboratories revised profound）, when the hearing loss types are conduction deafness or mixed deafness, selection Corresponding apolegamy prescriptive formula is DSL [i/o]（Desired sensation level [input/output]）、IHAFF （Independent hearing aid fitting forum individual hearing aids match forum）.Wherein, DSL [i/o] is " input/output formula [i/o] " that Cornelisse Seewald Jamieson propose March nineteen ninety-five.
The determination process for the insertion gain being discussed in detail below by taking POGO formula as an example.
POGO formula are McCandless and Denmark Oticon company of the nineteen eighty-three by Utah, USA university What Lyregaard was introduced first, the formula is only applicable to sensorineural deafness.
Insertion gain is defined as the hearing level at nearly eardrum, such as insertion gain needed for POGO formula, following table in external auditory meatus It is shown：
Frequency（Hz） Insertion gain（dBHL）
250 1/2HTL-10
500 1/2HTL-5
1000 1/2HTL
2000 1/2HTL
3000 1/2HTL
4000 1/2HTL
In upper table, HTL is Hearing Threshold Level, the as threshold of audibility.
The POGO formula second editions released in 1987（POGPⅡ）, for the hearing loss more than or equal to 65dBHL, give More compensation.Revised insertion gain formula is：
IG=1/2HTL-C+1/2（HTL-65）
In formula, at 250Hz, C=10dBHL；
At 500Hz, C=10dBHL；
At other frequencies, C=0dBHL.
When input be the left and right ear audiogram of person hard of hearing of sensorineural deafness as shown in Figure 6 when, utilize POGO formula calculate the result such as following table of required insertion gain：
Using during other formula, the determination process of insertion gain with determined using POGO formula needed for insertion gain class Seemingly, will not be described here.
Step S3, the testing with parameter of the user is determined according to the apolegamy prescriptive formula and audiogram.Specifically, The different hearing loss situation of user determines that its electro mechanical parameter needed may also be different, therefore, should be according to the hearing of user Damaed cordition, suitably tested with parameter from different apolegamy prescriptive formulas, to give the different compensating for frequency response of user. Furthermore it is also possible to mobile device test with set on interface softly, loudly, supper bass etc. it is optional for the convenient selection of user , if in the input without hearing loss situation, export softly, loudly, the respective default of supper bass tested with parameter.
In one embodiment of this invention, step S3 includes：Each frequency partition is entered into corresponding passage；Obtain default Pain domain and flex point；The input-output curve of each passage is determined according to the apolegamy prescriptive formula and audiogram；According to institute State input-output curve, pain domain and flex point and determine the linear, amplification portion of each input-output curve and non-linear amplifier section Insertion gain.Wherein, the threshold of pain be when sound hear make human ear start produce pain sound pressure level, flex point be linear, amplification portion and The intersection point of non-linear amplifier section.
Step S4, voice signal is gathered, and raising speech is made to the voice signal with parameter according to testing for the user Played out after the processing of discrimination.Specifically, the limited storage space of the algorithm in audiphone in the market, therefore will Algorithm is asked to accomplish that amount of calculation is small, amount of storage is small as far as possible, it is therefore desirable to traded off between computing capability and highest listen to effect, And the present embodiment can share the hardware resource of mobile device offer, deposited because the digital signal processing chip on mobile device has The features such as space is big, processing speed is fast is stored up, the good algorithm of computationally intensive but effect therefore, in this step can be selected, to improve language The signal to noise ratio of sound signal, and then the speech discrimination score for the obstacle person that improves one's hearing, give person hard of hearing comfortable auditory effect, separately It is outer to be also adjusted flexibly and more new algorithm.Moreover, mobile device can provide sufficiently large power consumption, the present embodiment can not be by power consumption Limitation, while multiple application programs are opened, and can use for a long time.In addition, what the existing audiphone loudspeaker of in the market was sent Sound would generally leak to microphone, cause output signal that the feedback phenomenon of the vibration (uttering long and high-pitched sounds) of high intensity, and this implementation occurs The position of microphone and loudspeaker of the example based on mobile device farther out, is not susceptible to feedback phenomenon.
In one embodiment of this invention, as shown in figure 4, step S4 specifically may include：
Step S411, voice signal is gathered, and LPF is carried out to the voice signal, to filter out more than 8000Hz's Voice signal；
Step S412, the voice signal after LPF is subjected to analog-to-digital conversion, to generate data signal；
Step S413, according to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section Make the processing of multichannel compensating for frequency response to the data signal.Specifically, the function of multichannel compensating for frequency response is targetedly The amplitude of the input speech signal of some frequency band is increased or decreased, and voice signal is fallen the earshot in person hard of hearing It is interior, assisting hearing obstacle person is audible, listen understand voice signal.It can design that test can be to helping with interface, user on the mobile apparatus Listen effect, insertion gain, flex point etc. to test to be selected with parameter, in the hope of reaching most comfortable listening effect；
Step S414, the data signal by the processing of multichannel compensating for frequency response is subjected to digital-to-analogue conversion, to generate voice And play out.
In another embodiment of the invention, as shown in figure 5, step S4 specifically may include：
Step S421, voice signal is gathered, and LPF is carried out to the voice signal；
Step S422, the voice signal after LPF is subjected to analog-to-digital conversion, to generate data signal；
Step S423, make the processing of speech enhan-cement to the data signal；Specifically, speech enhan-cement refers to work as voice signal By various noise jammings, even flood after, extract useful voice signal from noise background, suppress, reduce noise The method of interference；The purpose of speech enhan-cement is to improve voice quality, improves definition and intelligibility, reduces auditory fatigue；It is mobile The voice signal that the microphone of equipment collects, is inevitably disturbed by ambient noise, and therefore, voice enhancement algorithm is to need Want；Voice enhancement algorithm can improve the speech articulation and intelligibility of input speech signal, and user can preferably hear Sound, and then the ability exchanged with conference is improved, facilitate it to carry out the verbal communication in daily life；Preferably, movement is worked as When equipment is single Mike, noise, the processing of the speech enhan-cement can be removed using the statistical property of single channel noisy speech signal Method be using the comb filter method of quasi periodic denoising of voice, the Kalman filtering method based on model class, based on spectrum Any of spectrum-subtraction or Wiener Filter Method of amplitude Estimation class；In addition, when mobile device is microphone array, institute's predicate The method of processing of sound enhancing be Adaptive beamformer method, it is conventional have minimum variance it is undistorted respond Beam-former, Linear restriction minimum method Beam-former and generalized side lobe canceller, wherein widely used is Adaptive beamformer Generalized side lobe canceller in method（GSC）, improved method is that multichannel Wiener filter is introduced into generalized side lobe canceller Non-self-adapting passage method can more effectively suppress uncorrelated noise, carry out dimension-reduction treatment to blocking matrix；
Step S424, according to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section Make the processing of multichannel compensating for frequency response to the data signal by speech enhan-cement processing.In addition, for high frequency total hearing loss Severe hearing loss patient, Frequency- shift and frequency compression algorithm can be also applied on the mobile apparatus, by whole speech manual pressure It is reduced to low frequency part or high frequency is transferred to merely low frequency, makes full use of the low frequency residue hearing of patient.It can also be set in movement The functions such as standby upper offer Context awareness function, natural direction method, net method for de-noising and intelligent optimization；
Step S425, the data signal by the processing of multichannel compensating for frequency response is subjected to digital-to-analogue conversion, to generate voice And play out.Such as it can be played out by the loudspeaker on mobile device.
Preferably, in step S413 or step S424, the processing method of the multichannel compensating for frequency response can be following It is a kind of：Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or application comb filter cooperation is multiple Harmonic oscillator is added output to digital signal frequency split, and by each railway digital signal weighting after frequency dividing；Or apply LOUDNESS formula With frequency domain sampling FIR filter design method, according to frequency domain gain design time domain filtering, to the digital signal filter of input. Wherein, using interpolation half-band filter, the equally distributed wave filter group of equiband is realized, and it is multiple using comb filter cooperation Harmonic oscillator to digital signal frequency split, and by after frequency dividing each railway digital signal weighting be added output intent amount of calculation it is smaller, should With LOUDNESS formula and frequency domain sampling FIR filter design method, according to frequency domain gain design time domain filtering, to input Although digital signal filter method amount of calculation is larger, relative to conventional Time-domain dividing method, voice distortion is this approach reduce, It is highly profitable for improving speech discrimination score.
Person hard of hearing wear the present embodiment mobile device for a period of time after, person hard of hearing tentatively adapts to audiphone Afterwards, without carrying out later stage return visit to special chinic, the parameter of audiphone is readjusted, person hard of hearing can oneself debugging ginseng Number, to save time and travelling expenses.Assisting hearing method of the present embodiment based on mobile device has big power consumption, high performance-price ratio, behaviour Make the characteristics of simple, using the basic equipment on mobile device, such as microphone, loudspeaker, earphone, be user-friendly, no Its physiological defect can be exposed, protects privacy of user.
Embodiment two
As shown in fig. 7, another assisting hearing system based on mobile device of the present invention also offer, including audiometry module 1, Test and match somebody with somebody module 2 and assisting hearing module 3.
Audiometry module 1, the test tone of multiple frequencies is exported, to test the threshold of audibility of the user under the multiple frequency, and root Audiogram is generated according to the threshold of audibility of the user under the multiple frequency.
Optionally, the audiometry module 1 exports the test tone as one or more in pure tone, twiter sound or pulse sound.
In one embodiment of this invention, the audiometry module 1 includes output unit 11, recording unit 12 and audiometric curve Figure unit 13.
Output unit 11, for being sequentially output the test tone of multiple frequencies, be such as sequentially output 1000Hz, 2000Hz, Test tone under 3000Hz, 4000Hz, 6000Hz, 8000Hz, 250Hz, 500Hz, 1000Hz.The output unit 11 exports more First frequency is identical with last frequency in individual frequency.
Audiogram unit 12, for testing the threshold of audibility of the user under the multiple frequency successively；If user is first Individual frequency is less than or equal to 5dBHL with the threshold of audibility difference under last frequency, then judges the threshold of audibility difference of two frequency multiplication frequencies Whether 20dBHL is more than or equal to；If it is not, audiogram is generated according to the threshold of audibility of the user under the multiple frequency；If The threshold of audibility for the half frequency multiplication frequency then tested between described two frequency multiplication frequencies, and according to the threshold of audibility of the half frequency multiplication frequency and Threshold of audibility generation audiogram of the user under the multiple frequency；If user is in first frequency and last frequency Under threshold of audibility difference be more than 5dBHL, then the threshold of audibility of the user under the multiple frequency is tested successively again, until first frequency Differed with the threshold of audibility under last frequency untill being less than or equal to 5dBHL, and judge that the threshold of audibility of two frequency multiplication frequencies differs to be It is no to be more than or equal to 20dBHL, if it is not, generating hearing according to the threshold of audibility of the user of last time test under the multiple frequency Curve map；If so, the threshold of audibility of half frequency multiplication frequency between then testing described two frequency multiplication frequencies, and listening according to half frequency multiplication frequency Threshold of audibility generation audiogram of the user of threshold and last time test under the multiple frequency.
Preferably, the audiogram unit 12, for obtaining hearing level initial value of the user under current frequency, and Start to export test tone, the initial hearing level of the test tone subtracts for hearing level initial value of the user under current frequency 10dBHL, if user does not hear test tone, with mono- grade of increase intensity of 5dBHL, until user hears test tone；Perform three times with Upper threshold of audibility test：After user hears test tone, with mono- grade of 10dBHL reduction intensity, until user does not hear test tone, then with Mono- grade of increase intensity of 5dBHL, until user hears test tone, then records the current hearing level of the test tone；Judge wherein three times Whether the current hearing level of record is same hearing level, if it is not, above threshold of audibility test three times is continued executing with, until record again Untill current hearing level is same hearing level three times, then the same hearing level is recorded as the threshold of audibility under the current frequency.
Preferably, when current frequency is first 1000Hz frequency, the audiogram unit 12 obtains user and existed The threshold of audibility under the familiar experiment of 1000Hz, 40dBHL is as hearing level initial value；It is in addition to first 1000Hz in current frequency During frequency, the audiogram unit 12 obtains the threshold of audibility of the user under a upper frequency as hearing level initial value.
Test and match somebody with somebody module 2, for judging the hearing loss types of the user according to the audiogram, listened according to described Power loss type selecting matches prescriptive formula accordingly, and the user is determined according to the apolegamy prescriptive formula and audiogram Test with parameter.
Preferably, the hearing loss types judged with module 2 of testing include conduction deafness, perceptive deafness and Combination It is deaf.When the hearing loss types are perceptive deafness, test and select to match prescriptive formula accordingly as POGO or NAL- with module 2 RP, when the hearing loss types are conduction deafness or mixed deafness, test with module 2 select to match accordingly prescriptive formula for DSL [i/o] or IHAFF.
In one embodiment of this invention, it is described to test with module 2, for each frequency partition to be entered into corresponding passage；Obtain Take default pain domain and flex point；Determine that the input and output of each passage are bent according to the apolegamy prescriptive formula and audiogram Line；The linear, amplification portion of each input-output curve and non-linear is determined according to the input-output curve, pain domain and flex point The insertion gain of amplifier section.
Assisting hearing module 3, for gathering voice signal, and testing with parameter to the voice signal according to the user Played out after making the processing of raising speech discrimination score.
In one embodiment of this invention, the assisting hearing module 3 includes low-pass filter unit 31, AD conversion unit 32nd, compensating for frequency response unit 33 and D/A conversion unit 34.
Low-pass filter unit 31, LPF is carried out for gathering voice signal, and to the voice signal.
AD conversion unit 32, for the voice signal after LPF to be carried out into analog-to-digital conversion, to generate numeral Signal.
Compensating for frequency response unit 33, for the linear, amplification portion according to each input-output curve and non-linear amplifier section Insertion gain make the processing of multichannel compensating for frequency response to the data signal.
In one embodiment of this invention, the processing method for the multichannel compensating for frequency response that the compensating for frequency response unit uses for It is following any：
Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or application comb filter coordinates Multiple harmonic oscillators are added output to digital signal frequency split, and by each railway digital signal weighting after frequency dividing；Or using LOUDNESS Formula and frequency domain sampling FIR filter design method, according to frequency domain gain design time domain filtering, the data signal of input is filtered Ripple.
D/A conversion unit 34, for digital-to-analogue conversion will to be carried out by the processing data signal of multichannel compensating for frequency response, with Generation voice simultaneously plays out.
Preferably, the assisting hearing module 3 also includes speech enhancement unit 35, for making voice to the data signal The processing of enhancing.When mobile device is single Mike, processing method that the speech enhancement unit 35 uses is utilizes voice The comb filter method of quasi periodic denoising, the Kalman filtering method based on model class, the spectrum-subtraction based on spectral amplitude estimation class Or any of Wiener Filter Method.When mobile device is microphone array, the processing of the use of speech enhancement unit 35 Method is the undistorted response Beam-former of the minimum variance in Adaptive beamformer method, linear restriction minimum method wave beam Any of shaper or generalized side lobe canceller etc..
Other detailed contents of embodiment two for details, reference can be made to each appropriate section of embodiment one, will not be repeated here.
In summary, the present invention is by exporting the test tone of different frequency, and test and record user are at different frequencies The threshold of audibility, and audiogram is generated according to the threshold of audibility of user at different frequencies, judge user's according to the audiogram Hearing loss types, corresponding apolegamy prescriptive formula is selected according to the hearing loss types, according to the apolegamy prescriptive formula The testing with parameter of user is determined with audiogram, and gathers voice signal, further according to testing with parameter to the voice for user Signal plays out after making the processing of raising speech discrimination score, can utilize the hearing loss situation of mobile device test user, And the audiogram of user is recorded automatically, carrying out automatic test according to different user audiogram matches somebody with somebody, and is targetedly listened Force compensating, so as to by the audiometry function of audiometer, hearing aid fitting software to test the function with function and audiphone integrated. In addition, assisting hearing method or system based on mobile device will not expose user's itself while being user-friendly Physiological defect.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment For, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration .
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty Technical staff can realize described function using distinct methods to each specific application, but this realization should not Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention And scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies scope it Interior, then the present invention is also intended to including these changes and modification.

Claims (25)

  1. A kind of 1. assisting hearing method based on mobile device, it is characterised in that including：
    The test tone of multiple frequencies is exported, to test the threshold of audibility of the user under the multiple frequency, and according to the user in institute State the threshold of audibility generation audiogram under multiple frequencies；
    The hearing loss types of the user are judged according to the audiogram, are selected according to the hearing loss types corresponding Apolegamy prescriptive formula；
    The testing with parameter of the user is determined according to the apolegamy prescriptive formula and audiogram；
    Voice signal is gathered, and the voice signal is made with parameter to improve the processing of speech discrimination score according to testing for the user After play out；
    Wherein, determine that testing for the user includes with the step of parameter according to the apolegamy prescriptive formula and audiogram：
    Each frequency partition is entered into corresponding passage；
    Obtain default pain domain and flex point；
    The input-output curve of each passage is determined according to the apolegamy prescriptive formula and audiogram；
    The linear, amplification portion of each input-output curve and non-linear is determined according to the input-output curve, pain domain and flex point The insertion gain of amplifier section；
    Voice signal is gathered, and the voice signal is made with parameter to improve the processing of speech discrimination score according to testing for the user After the step of playing out include：
    Voice signal is gathered, and LPF is carried out to the voice signal；
    Voice signal after LPF is subjected to analog-to-digital conversion, to generate data signal；
    The numeral is believed according to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section Number make the processing of multichannel compensating for frequency response；
    Data signal by the processing of multichannel compensating for frequency response is subjected to digital-to-analogue conversion, to generate voice and play out.
  2. 2. the assisting hearing method based on mobile device as claimed in claim 1, it is characterised in that export the survey of multiple frequencies Audition, the threshold of audibility of the test user under the multiple frequency, and generated according to the threshold of audibility of the user under the multiple frequency The step of audiogram, includes：
    The test tone of multiple frequencies is sequentially output, and tests the threshold of audibility of the user under the multiple frequency successively；
    If threshold of audibility difference of the user under first frequency and last frequency is less than or equal to 5dBHL, two times are judged Whether the threshold of audibility difference of frequent rate is more than or equal to 20dBHL；If it is not, the threshold of audibility according to the user under the multiple frequency Generate audiogram；If so, the threshold of audibility of half frequency multiplication frequency between then testing described two frequency multiplication frequencies, and according to described half The threshold of audibility generation audiogram of the threshold of audibility of frequency multiplication frequency and the user under the multiple frequency；
    If threshold of audibility difference of the user under first frequency and last frequency is more than 5dBHL, user is tested successively again The threshold of audibility under the multiple frequency, until first frequency is differed with the threshold of audibility under last frequency and be less than or equal to Untill 5dBHL, and judge whether the threshold of audibility difference of two frequency multiplication frequencies is more than or equal to 20dBHL, if it is not, according to last time Threshold of audibility generation audiogram of the user of test under the multiple frequency；If so, then test described two frequency multiplication frequencies it Between half frequency multiplication frequency the threshold of audibility, and according to the user of the threshold of audibility of half frequency multiplication frequency and last time test in the multiple frequency Under the threshold of audibility generation audiogram.
  3. 3. the assisting hearing method based on mobile device as claimed in claim 2, it is characterised in that in the multiple frequency One frequency is identical with last frequency.
  4. 4. the assisting hearing method based on mobile device as claimed in claim 3, it is characterised in that the multiple frequency bag Include：1000Hz、2000Hz、3000Hz、4000Hz、6000Hz、8000Hz、250Hz、500Hz、1000Hz.
  5. 5. the assisting hearing method based on mobile device as claimed in claim 2, it is characterised in that user is in each frequency for test The step of threshold of audibility under rate, includes：
    Step 1：Hearing level initial value of the user under current frequency is obtained, and starts output test tone, at the beginning of the test tone Beginning hearing level is that hearing level initial value of the user under current frequency subtracts 10dBHL, if user does not hear test tone, with 5dBHL One grade of increase intensity, until user hears test tone；
    Step 2：After user hears test tone, with mono- grade of 10dBHL reduction intensity, until user does not hear test tone, then with Mono- grade of increase intensity of 5dBHL, until user hears test tone, then records the current hearing level of the test tone；
    Repeat step 2 three times more than after, judge whether the current hearing level that wherein records three times is same hearing level, if It is no, continue executing with step 2 three times more than, until the hearing level current three times recorded again be same hearing level untill, then record The same hearing level is the threshold of audibility under the current frequency.
  6. 6. the assisting hearing method based on mobile device as described in any one in claim 1 to 5, it is characterised in that institute Stating hearing loss types includes conduction deafness, perceptive deafness and mixed deafness.
  7. 7. the assisting hearing method based on mobile device as claimed in claim 6, it is characterised in that when the hearing loss class When type is perceptive deafness, it is POGO or NAL-RP to select corresponding apolegamy prescriptive formula.
  8. 8. the assisting hearing method based on mobile device as claimed in claim 6, it is characterised in that when the hearing loss class When type is conduction deafness or mixed deafness, it is DSL [i/o] or IHAFF to select corresponding apolegamy prescriptive formula.
  9. 9. the assisting hearing method based on mobile device as claimed in claim 1, it is characterised in that collection voice signal, and According to the user test with parameter to the voice signal make improve speech discrimination score processing after play out the step of also Including：Make the processing of speech enhan-cement to the data signal；
    Wherein, according to the insertion gain of the linear, amplification portion of each input-output curve and non-linear amplifier section to by language The data signal of sound enhancing processing makees the processing of multichannel compensating for frequency response.
  10. 10. the assisting hearing method based on mobile device as claimed in claim 9, it is characterised in that when mobile device is single During Mike, the method for the processing of the speech enhan-cement is using the comb filter method of the quasi periodic denoising of voice, based on mould Any of the Kalman filtering method of type class, the spectrum-subtraction based on spectral amplitude estimation class or Wiener Filter Method.
  11. 11. the assisting hearing method based on mobile device as claimed in claim 9, it is characterised in that when mobile device is wheat During gram wind array, the method for the processing of the speech enhan-cement is the undistorted response of minimum variance in Adaptive beamformer method Any of Beam-former, linear restriction minimum method Beam-former or generalized side lobe canceller.
  12. 12. the assisting hearing method based on mobile device as described in claim 1 or 9, it is characterised in that the multichannel frequency The processing method for ringing compensation is following any：
    Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or
    Coordinate multiple harmonic oscillators to digital signal frequency split using comb filter, and by each railway digital signal weighting phase after frequency dividing Add output；Or
    It is right according to frequency domain gain design time domain filtering using LOUDNESS formula and frequency domain sampling FIR filter design method The digital signal filter of input.
  13. 13. the assisting hearing method based on mobile device as claimed in claim 1, it is characterised in that the test tone is pure One or more in sound, twiter sound or pulse sound.
  14. A kind of 14. assisting hearing system based on mobile device, it is characterised in that including：
    Audiometry module, for exporting the test tone of multiple frequencies, to test the threshold of audibility of the user under the multiple frequency, and according to Threshold of audibility generation audiogram of the user under the multiple frequency；
    Test and match somebody with somebody module, for judging the hearing loss types of the user according to the audiogram, damaged according to the hearing Lose type selecting and match prescriptive formula accordingly, testing for the user is determined according to the apolegamy prescriptive formula and audiogram With parameter；
    Assisting hearing module, the voice signal is carried with parameter for gathering voice signal, and according to testing for the user Played out after the processing of high speech discrimination score；
    Wherein, it is described to test with module, for each frequency partition to be entered into corresponding passage；Obtain default pain domain and flex point；Root The input-output curve of each passage is determined according to the apolegamy prescriptive formula and audiogram；It is bent according to the input and output Line, pain domain and flex point determine the linear, amplification portion of each input-output curve and the insertion gain of non-linear amplifier section；
    The assisting hearing module includes：
    Low-pass filter unit, LPF is carried out for gathering voice signal, and to the voice signal；
    AD conversion unit, for the voice signal after LPF to be carried out into analog-to-digital conversion, to generate data signal；
    Compensating for frequency response unit, the intervention for the linear, amplification portion according to each input-output curve and non-linear amplifier section The processing of multichannel compensating for frequency response is made in gain to the data signal；
    D/A conversion unit, for the data signal by the processing of multichannel compensating for frequency response to be carried out into digital-to-analogue conversion, with generation Voice simultaneously plays out.
  15. 15. the assisting hearing system based on mobile device as claimed in claim 14, it is characterised in that the audiometry module bag Include：
    Output unit, for being sequentially output the test tone of multiple frequencies；
    Audiogram unit, for testing the threshold of audibility of the user under the multiple frequency successively；If user is in first frequency It is less than or equal to 5dBHL with the threshold of audibility difference under last frequency, then judges whether the threshold of audibility difference of two frequency multiplication frequencies is big In or equal to 20dBHL；If it is not, audiogram is generated according to the threshold of audibility of the user under the multiple frequency；If so, then The threshold of audibility for the half frequency multiplication frequency tested between described two frequency multiplication frequencies, and the threshold of audibility according to the half frequency multiplication frequency and the use Threshold of audibility generation audiogram of the family under the multiple frequency；If user is in first frequency and listening under last frequency Threshold difference is more than 5dBHL, then tests the threshold of audibility of the user under the multiple frequency successively again, up to first frequency and finally Untill threshold of audibility difference under one frequency is less than or equal to 5dBHL, and judge whether the threshold of audibility difference of two frequency multiplication frequencies is more than Or equal to 20dBHL, if it is not, generating audiogram according to the threshold of audibility of the user of last time test under the multiple frequency； If so, the threshold of audibility of half frequency multiplication frequency between then testing described two frequency multiplication frequencies, and according to the threshold of audibility of half frequency multiplication frequency and most Threshold of audibility generation audiogram of the user once tested afterwards under the multiple frequency.
  16. 16. the assisting hearing system based on mobile device as claimed in claim 15, it is characterised in that the output unit is defeated It is identical with last frequency to go out first frequency in multiple frequencies.
  17. 17. the assisting hearing system based on mobile device as claimed in claim 16, it is characterised in that the output unit is defeated Going out multiple frequencies includes：1000Hz、2000Hz、3000Hz、4000Hz、6000Hz、8000Hz、250Hz、500Hz、1000Hz.
  18. 18. the assisting hearing system based on mobile device as claimed in claim 15, it is characterised in that audiogram list Member, for obtaining hearing level initial value of the user under current frequency, and start to export test tone, the initial of the test tone listens Power level is that hearing level initial value of the user under current frequency subtracts 10dBHL, if user does not hear test tone, with mono- grade of 5dBHL Increase intensity, until user hears test tone；The above threshold of audibility three times is performed to test：After user hears test tone, with 10dBHL mono- Shelves reduce intensity, until user does not hear test tone, then with mono- grade of increase intensity of 5dBHL, until user hears test tone, then remember Record the current hearing level of the test tone；Whether the current hearing level for judging wherein to record three times is same hearing level, if it is not, continuing Perform the above threshold of audibility three times to test, untill the hearing level current three times recorded again is same hearing level, then described in record Same hearing level is the threshold of audibility under the current frequency.
  19. 19. the assisting hearing system based on mobile device as described in claim 14 to 18 any one, it is characterised in that institute State and test the hearing loss types judged with module and include conduction deafness, perceptive deafness and mixed deafness.
  20. 20. the assisting hearing system based on mobile device as claimed in claim 19, it is characterised in that when the hearing loss When type is perceptive deafness, described test selects to match prescriptive formula accordingly to be POGO or NAL-RP with module, when the hearing Type is lost when be conduction deafness or mixed deafness, it is described test with module selection match accordingly prescriptive formula for DSL [i/o] or IHAFF。
  21. 21. the assisting hearing system based on mobile device as claimed in claim 14, it is characterised in that the assisting hearing mould Block also includes speech enhancement unit, for making the processing of speech enhan-cement to the data signal.
  22. 22. the assisting hearing system based on mobile device as claimed in claim 21, it is characterised in that when mobile device is single During Mike, processing method that the speech enhancement unit uses for using the comb filter method of the quasi periodic denoising of voice, Any of Kalman filtering method based on model class, the spectrum-subtraction based on spectral amplitude estimation class or Wiener Filter Method.
  23. 23. the assisting hearing system based on mobile device as claimed in claim 21, it is characterised in that when mobile device is wheat During gram wind array, processing method that the speech enhancement unit uses is the minimum variance in Adaptive beamformer method without mistake Any of true response Beam-former, linear restriction minimum method Beam-former or generalized side lobe canceller.
  24. 24. the assisting hearing system based on mobile device as described in claim 14 or 21, it is characterised in that the frequency response is mended The processing method for the multichannel compensating for frequency response that unit uses is repaid to be following any：
    Using interpolation half-band filter, the equally distributed wave filter group of equiband is realized；Or
    Coordinate multiple harmonic oscillators to digital signal frequency split using comb filter, and by each railway digital signal weighting phase after frequency dividing Add output；Or
    It is right according to frequency domain gain design time domain filtering using LOUDNESS formula and frequency domain sampling FIR filter design method The digital signal filter of input.
  25. 25. the assisting hearing system based on mobile device as claimed in claim 14, it is characterised in that the audiometry module is defeated Go out the test tone for the one or more in pure tone, twiter sound or pulse sound.
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