CN1852622B - Selective configuration device for digital hearing aid - Google Patents
Selective configuration device for digital hearing aid Download PDFInfo
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- CN1852622B CN1852622B CN2006100505872A CN200610050587A CN1852622B CN 1852622 B CN1852622 B CN 1852622B CN 2006100505872 A CN2006100505872 A CN 2006100505872A CN 200610050587 A CN200610050587 A CN 200610050587A CN 1852622 B CN1852622 B CN 1852622B
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Abstract
The equipment includes following modules: data input module in use for inputting value of hearing ability of person to be tested at specific frequencies T1, T2, T3, T4, T5; module for calculating middle data in use for calculating N, T average corresponding to value of hearing ability of person to be tested; database module in use for establishing data parameters of audiphones corresponding to N, T average; scheme selection module in use for matching data parameters of audiphones in database module by using N, T average obtained through module for calculating middle data; output module in use for writing data parameters of audiphones matched to scheme selection module to audiphones. Advantages are: not need of complex adjustment steps, easy of matching, and good matching effect.
Description
(1) technical field
The present invention relates to a kind of apolegamy device of digital deaf-aid.
(2) background technology
Digital deaf-aid uses Digital Signal Processing (digital signal processing; DSP) give the audiologist and listen the barrier patient to bring new hope; Such as parameter regulation flexibly; Comprise flex point, gain, compression property (start-up time, release time, compression ratio), low-and high-frequency decay of each passage etc., make hearing aids have the flexibility of better fidelity and Geng Gao, improved the language resolving ability of patient under noise circumstance.
For the adjusting of these parameters of digital deaf-aid, just need debug through hearing aids computer programming software, under the prompting of computer, select suitable computing formula for use, make that the effect of apolegamy is satisfactory.But more complicated in the hearing aids debug process is very high to commissioning staff's requirement, and hearing aids is difficult to the best effect of performance, thereby needs the apolegamy device of a kind of digital deaf-aid of exploitation.
(3) summary of the invention
The object of the invention is to provide a kind of digital deaf-aid easy and simple to handle, that apolegamy is effective to match device.
The apolegamy device of described digital deaf-aid comprises:
Data input module is used to import the hearing value of person's CF to be measured: T
1, T
2, T
3, T
4, T
5, T wherein
1Expression low frequency hearing, T
2Expression medium and low frequency hearing, T
3Expression intermediate frequency hearing, T
4Expression medium-high frequency hearing, T
5Expression high frequency hearing;
The intermediate data computing module is used to calculate N, the T corresponding to person's hearing value to be measured
On average, wherein
T
Low frequency=(T
250+ T
500)/2
T
High frequency=(T
2K+ T
4K)/2
N=T
High frequency-T
Low frequency
T
On average=(T
500+ T
1K+ T
2K)/3;
DBM is used for setting up corresponding to N, T
On averageThe hearing aids data parameters;
The Scheme Choice module is used for N, T that the intermediate data computing module is obtained
On averageHearing aids data parameters in the matched data library module;
Output module is used for the hearing aids data parameters of Scheme Choice module coupling is write hearing aids.
Further, T
1Expression 250Hz hearing, T
2Expression 500Hz hearing, T
3Expression 1000Hz hearing, T
4Expression 2000Hz hearing, T
5Expression 4000Hz hearing.
Further, described DBM establishes corresponding to N, T
On averageSingle channel hearing aids data parameters: passage flex point, passage compression ratio, volume control, maximum output control, low cut, high frequency attenuation.
Further, described DBM establishes corresponding to N, T
On averageBinary channels hearing aids data parameters: 1 gain of passage 1 flex point, passage 2 flex points, passage 1 compression ratio, passage 2 compression ratios, passage, passage 2 gains, volume control, maximum output control, low cut, high frequency attenuation.
Further, described DBM establishes corresponding to N, T
On averageBinary channels hearing aids data parameters: passage 1 flex point, passage 2 flex points, passage 1 little acoustic gain, passage 2 little acoustic gains, passage 1 big acoustic gain, passage 2 big acoustic gains, volume control, maximum output control, low cut, high frequency attenuation.
Further, described DBM establishes corresponding to N, T
On averageFour-way hearing aids data parameters: passage 1 flex point, passage 2 flex points, passage 3 flex points, passage 4 flex points, passage 1 little acoustic gain, passage 2 little acoustic gains, passage 3 little acoustic gains, passage 4 little acoustic gains, passage 1 big acoustic gain, passage 2 big acoustic gains, passage 3 big acoustic gains, passage 4 big acoustic gains, volume control, maximum output control, low cut, high frequency attenuation.
Further, described DBM establishes corresponding to the hearing aids data parameters under the scenarios:
N≤-10, T
On average≤50;
N≤-10,50＜T
On average≤62;
N≤-10,62＜T
On average≤74;
N≤-10,74＜T
On average
-10＜N＜15, T
On average≤50;
-10＜N＜15,50＜T
On average≤62;
-10＜N＜15,62＜T
On average≤74;
-10＜N＜15,74＜T
On average
15≤N≤40, T
On average≤50;
15≤N≤40,50＜T
On average≤62;
15≤N≤40,62＜T
On average≤74;
15≤N≤40,74＜T
On average
40＜N, T
On average≤50;
40＜N, 50＜T
On average≤62;
40＜N, 62＜T
On average≤74;
40＜N, 74＜T
On average
When digital deaf-aid apolegamy device of the present invention is used, do not need the complicated adjusting step, apolegamy is convenient, matches effective.
(4) description of drawings
Fig. 1 is the block diagram of said digital deaf-aid apolegamy device.
(5) embodiment
Below in conjunction with embodiment the present invention is described further, but protection scope of the present invention is not limited to this.
Embodiment 1
With reference to Fig. 1, a kind of apolegamy device of digital deaf-aid comprises: data input module is used to import the hearing value of person's CF to be measured: T
1=65dB, T
2=65dB, T
3=45dB, T
4=45dB, T
5=35dB, wherein T
1Expression 250Hz hearing, T
2Expression 500Hz hearing, T
3Expression 1000Hz hearing, T
4Expression 2000Hz hearing, T
5Expression 4000Hz hearing; The intermediate data computing module is used to calculate N, the T corresponding to person's hearing value to be measured
On average, wherein
T
Low frequency=(T
250+ T
500)/2=65dB
T
High frequency=(T
2K+ T
4K)/2=40dB
N=T
High frequency-T
Low frequency=-25
T
On average=(T
500+ T
1K+ T
2K)/3=51.7dB;
DBM establishes corresponding to N, T
On averageSingle channel hearing aids data parameters: passage flex point, passage compression ratio, volume control, maximum output control, low cut, high frequency attenuation.As shown in table 1 below: table 1
| The hearing situation | The passage flex point | The passage compression ratio | Volume control (dB) | Maximum output control (dB) | Low cut (Hz) | High frequency attenuation (Hz) |
| N≤-10 T On average≤50 | 36 | 1.8 | 10 | -8 | 200 | 7100 |
| N≤-10 50＜T On average≤62 | 40 | 1.8 | 15 | -6 | 160 | 6000 |
| N≤-10 62＜T On average≤74 | 40 | 1.6 | 20 | -6 | 125 | 6000 |
| N≤-10 74＜T On average | 40 | 1.8 | 25 | -4 | 125 | 6000 |
| -10＜N＜15 T On average≤50 | 36 | 1.8 | 10 | -8 | 500 | 8000 |
| -10＜N＜15 50＜T On average≤62 | 36 | 1.8 | 15 | -6 | 400 | 6700 |
| -10＜N＜15 62＜T On average≤74 | 40 | 1.8 | 20 | -6 | 315 | 6700 |
| -10＜N＜15 74＜T On average | 40 | 1.8 | 25 | -4 | 250 | 6700 |
| 15≤N≤40 T On average≤50 | 36 | 1.8 | 10 | -8 | 630 | 8000 |
| 15≤N≤40 50＜T On average≤62 | 40 | 1.8 | 15 | -6 | 500 | 7100 |
| 15≤N≤40 62＜T On average≤74 | 40 | 1.8 | 20 | -6 | 400 | 7100 |
| 15≤N≤40 74＜T On average | 40 | 1.8 | 25 | -4 | 315 | 7100 |
| 40＜N T On average≤50 | 40 | 1.6 | 10 | -8 | 800 | 16000 |
| 40＜N | 40 | 1.6 | 15 | -6 | 630 | 8000 |
| 50＜T On average≤62 | ||||||
| 40＜N 62＜T On average≤74 | 40 | 1.6 | 20 | -6 | 500 | 8000 |
| 40＜N 74＜T On average | 40 | 1.8 | 25 | -4 | 400 | 8000 |
The Scheme Choice module is used for N, T that the intermediate data computing module is obtained
On averageHearing aids data parameters in the matched data library module; Since N≤-10,50＜T
On average≤62, thus Scheme Choice module final matching passage flex point=44, passage compression ratio=1.8, volume control=15dB, maximum output control=-6dB, low cut=160Hz, high frequency attenuation=6000Hz.
Output module is used for the above-mentioned hearing aids data parameters of Scheme Choice module coupling is write hearing aids.
Embodiment 2
With reference to Fig. 1, a kind of apolegamy device of digital deaf-aid comprises: data input module is used to import the hearing value of person's CF to be measured: T
1=65dB, T
2=65dB, T
3=45dB, T
4=45dB, T
5=35dB, wherein T
1Expression 250Hz hearing, T
2Expression 500Hz hearing, T
3Expression 1000Hz hearing, T
4Expression 2000Hz hearing, T
5Expression 4000Hz hearing;
The intermediate data computing module is used to calculate N, the T corresponding to person's hearing value to be measured
On average, wherein
T
Low frequency=(T
250+ T
500)/2=65dB
T
High frequency=(T
2K+ T
4K)/2=40dB
N=T
High frequency-T
Low frequency=-25
T
On average=(T
500+ T
1K+ T
2K)/3=51.7dB;
DBM establishes corresponding to N, T
On averageBinary channels hearing aids data parameters: 1 gain of passage 1 flex point, passage 2 flex points, passage 1 compression ratio, passage 2 compression ratios, passage, passage 2 gains, volume control, maximum output control, low cut, high frequency attenuation.As shown in table 2 below:
Table 2
| The hearing situation | Passage 1 flex point | The passage flex point | Passage 1 compression ratio | Passage 2 compression ratios | Passage 1 gain | Passage 2 gains | Volume control (dB) | Maximum output control (dB) | Low cut (Hz) | High frequency attenuation (Hz) |
| N≤-10 T On average≤50 | 44 | 40 | 1.4 | 1.4 | 20 | 10 | -15 | -6 | 160 | 6700 |
| N≤-10 50＜T On average≤62 | 44 | 40 | 1.6 | 1.6 | 20 | 10 | -10 | -6 | 160 | 6000 |
| N≤-10 62＜T On average≤74 | 48 | 44 | 1.6 | 1.6 | 25 | 15 | -10 | -6 | 125 | 6000 |
| N≤-10 74＜T On average | 48 | 44 | 1.6 | 1.6 | 25 | 15 | -5 | -4 | 125 | 6000 |
| -10＜N＜15 T On average≤50 | 44 | 44 | 1.6 | 1.6 | 20 | 15 | -15 | -6 | 315 | 7100 |
| -10＜N＜15 50＜T On average≤62 | 48 | 48 | 1.6 | 1.6 | 20 | 15 | -10 | -6 | 250 | 6700 |
| -10＜N＜15 62＜T On average≤74 | 48 | 48 | 1.6 | 1.6 | 25 | 20 | -10 | -6 | 200 | 6700 |
| -10＜N＜15 74＜T On average | 48 | 48 | 1.6 | 1.6 | 25 | 20 | -5 | -4 | 200 | 6700 |
| 15≤N≤40 T On average≤50 | 44 | 44 | 1.6 | 1.6 | 15 | 15 | -10 | -8 | 400 | 8000 |
| 15≤N≤40 50＜T On average≤62 | 44 | 44 | 1.6 | 1.6 | 20 | 20 | -10 | -8 | 315 | 8000 |
| 15≤N≤40 62＜T On average≤74 | 44 | 44 | 1.6 | 1.6 | 25 | 25 | -10 | -6 | 315 | 7100 |
| 15≤N≤40 74＜T On average | 48 | 48 | 1.6 | 1.8 | 25 | 25 | -5 | -4 | 250 | 7100 |
| 40＜N T On average≤50 | 40 | 40 | 1.6 | 1.6 | 15 | 20 | -10 | -8 | 500 | 16000 |
| 40＜N 50＜T On average≤62 | 40 | 40 | 1.6 | 1.6 | 20 | 25 | -10 | -6 | 400 | 8000 |
| 40＜N 62＜T On average≤74 | 44 | 44 | 1.6 | 1.8 | 20 | 25 | -5 | -4 | 315 | 8000 |
| 40＜N 74＜T On average | 44 | 44 | 1.6 | 2.0 | 20 | 25 | 0 | -2 | 315 | 8000b |
The Scheme Choice module is used for N, T that the intermediate data computing module is obtained
On averageHearing aids data parameters in the matched data library module; Since N≤-10,50＜T
On average≤62, thus Scheme Choice module final matching passage 1 flex point=44, passage 2 flex points=40; Passage 1 compression ratio=1.6, passage 2 compression ratios=1.6, passage 1 gain=20dB; Passage 2 gain=10dB, volume control=-10dB, maximum output control=-6dB; Low cut=160Hz, high frequency attenuation=6000Hz.
Output module is used for the above-mentioned hearing aids data parameters of Scheme Choice module coupling is write hearing aids.
Embodiment 3
With reference to Fig. 1, a kind of apolegamy device of digital deaf-aid comprises: data input module is used to import the hearing value of person's CF to be measured: T
1=65dB, T
2=65dB, T
3=45dB, T
4=45dB, T
5=35dB, wherein T
1Expression 250Hz hearing, T
2Expression 500Hz hearing, T
3Expression 1000Hz hearing, T
4Expression 2000Hz hearing, T
5Expression 4000Hz hearing;
The intermediate data computing module is used to calculate N, the T corresponding to person's hearing value to be measured
On average, wherein
T
Low frequency=(T
250+ T
500)/2=65dB
T
High frequency=(T
2K+ T
4K)/2=40dB
N=T
High frequency-T
Low frequency=-25
T
On average=(T
500+ T
1K+ T
2K)/3=51.7dB;
DBM establishes corresponding to N, T
On averageFour-way hearing aids data parameters: passage 1 flex point, passage 2 flex points, passage 3 flex points, passage 4 flex points, passage 1 little acoustic gain, passage 2 little acoustic gains, passage 3 little acoustic gains, passage 4 little acoustic gains, passage 1 big acoustic gain, passage 2 big acoustic gains, passage 3 big acoustic gains, passage 4 big acoustic gains, volume control, maximum output control, low cut, high frequency attenuation.
As shown in table 3 below:
Table 3
| The hearing situation | Passage 1 flex point | Passage 2 flex points | Passage 3 flex points | Passage 4 flex points | Passage 1 little acoustic gain (dB) | Passage 2 little acoustic gains (dB) | Passage 3 little acoustic gains (dB) | Passage 4 little acoustic gains (dB) | Passage 1 big acoustic gain (dB) | Passage 2 big acoustic gains (dB) | Passage 3 big acoustic gains (dB) | Passage 4 big acoustic gains (dB) | Maximum output control (dB) | Volume control (dB) | Low cut (Hz) | High frequency attenuation (Hz) |
| N≤-10 T On average≤50 | 46 | 40 | 40 | 40 | 10 | 10 | 8 | 6 | -2 | -4 | -6 | -8 | -6 | -4 | 200 | 7100 |
| N≤-10 50＜T On average≤62 | 46 | 46 | 46 | 40 | 10 | 10 | 8 | 6 | -2 | -2 | -4 | -8 | -6 | 0 | 160 | 7100 |
| N≤-10 62＜T On average≤74 | 52 | 52 | 46 | 46 | 16 | 16 | 14 | 12 | 6 | 6 | 2 | 0 | -4 | 0 | 160 | 7100 |
| N≤-10 74＜T On average | 52 | 52 | 52 | 52 | 22 | 22 | 20 | 18 | 10 | 10 | 8 | 6 | -4 | 0 | 160 | 7100 |
| -10＜N＜15 T On average≤50 | 40 | 40 | 40 | 40 | 10 | 12 | 12 | 10 | -4 | -2 | -2 | -4 | -6 | -2 | 400 | 8000 |
| -10＜N＜15 50＜T On average≤62 | 46 | 46 | 46 | 46 | 12 | 14 | 14 | 12 | -2 | 0 | 0 | -2 | -6 | 0 | 315 | 8000 |
| -10＜N＜15 62＜T On average≤74 | 46 | 46 | 46 | 46 | 16 | 18 | 18 | 16 | 4 | 6 | 4 | 2 | -6 | 0 | 315 | 8000 |
| -10＜N＜15 74＜T On average | 52 | 52 | 52 | 52 | 20 | 22 | 22 | 20 | 8 | 10 | 10 | 8 | -4 | 0 | 250 | 8000 |
| 15≤N≤40 T On average≤50 | 40 | 40 | 40 | 46 | 8 | 10 | 12 | 12 | -8 | -6 | -4 | -2 | -6 | 0 | 400 | 8000 |
| 15≤N≤40 50＜T On average≤62 | 40 | 46 | 46 | 46 | 12 | 14 | 16 | 16 | -2 | 0 | 2 | 2 | -6 | 0 | 400 | 8000 |
| 15≤N≤40 62＜T On average≤74 | 46 | 46 | 46 | 52 | 12 | 14 | 16 | 16 | -2 | 0 | 2 | 2 | -6 | 2 | 400 | 8000 |
| 15≤N≤40 74＜T On average | 52 | 52 | 52 | 52 | 18 | 20 | 22 | 20 | 6 | 8 | 10 | 10 | -4 | 0 | 315 | 7100 |
| 40＜N T On average≤50 | 40 | 40 | 40 | 46 | 6 | 8 | 12 | 14 | -8 | -6 | -4 | 0 | -6 | 2 | 630 | 8000 |
| 40＜N 50＜T On average≤62 | 40 | 46 | 46 | 52 | 10 | 12 | 16 | 16 | -4 | -2 | 2 | 4 | -6 | 2 | 500 | 8000 |
| 40＜N 62＜T On average≤74 | 46 | 46 | 52 | 52 | 16 | 18 | 22 | 20 | 2 | 4 | 10 | 8 | -6 | 0 | 500 | 8000 |
| 40＜N 74＜T On average | 46 | 52 | 52 | 60 | 16 | 18 | 22 | 20 | 4 | 6 | 10 | 8 | -4 | 2 | 315 | 7100 |
The Scheme Choice module is used for N, T that the intermediate data computing module is obtained
On averageHearing aids data parameters in the matched data library module; Since N≤-10,50＜T
On average≤62, thus Scheme Choice module final matching passage 1 flex point=46, passage 2 flex points=46, passage 3 flex points=46; Passage 4 flex points=40, passage 1 little acoustic gain=10dB, passage 2 little acoustic gain=10dB, passage 3 little acoustic gain=8dB; Passage 4 little acoustic gain=6dB, passage 1 big acoustic gain=-2dB, passage 2 big acoustic gains=-2dB; Passage 3 big acoustic gains=-4dB, passage 4 big acoustic gains=-8dB, maximum output control=-6dB; Volume control=0dB, low cut=160Hz, high frequency attenuation=7100Hz.
Output module is used for the above-mentioned hearing aids data parameters of Scheme Choice module coupling is write hearing aids.
Claims (6)
1. the apolegamy device of a digital deaf-aid is characterized in that: comprising:
Data input module is used to import the hearing value of person's CF to be measured: T
1, T
2, T
3, T
4, T
5, T wherein
1Expression 250Hz hearing, T
2Expression 500Hz hearing, T
3Expression 1000Hz hearing, T
4Expression 2000Hz hearing, T
5Expression 4000Hz hearing;
The intermediate data computing module is used to calculate N, the T corresponding to person's hearing value to be measured
On average, wherein
T
Low frequency=(T
1+ T
2)/2
T
High frequency=(T
4+ T
5)/2
N=T
High frequency-T
Low frequency
T
On average=(T
2+ T
3+ T
4)/3;
DBM is used for setting up corresponding to N, T
On averageThe hearing aids data parameters;
The Scheme Choice module is used for N, T that the intermediate data computing module is obtained
On averageHearing aids data parameters in the matched data library module;
Output module is used for the hearing aids data parameters of Scheme Choice module coupling is write hearing aids.
2. the apolegamy device of digital deaf-aid as claimed in claim 1, it is characterized in that: described DBM establishes corresponding to N, T
On averageSingle channel hearing aids data parameters: passage flex point, passage compression ratio, volume control, maximum output control, low cut, high frequency attenuation.
3. the apolegamy device of digital deaf-aid as claimed in claim 1, it is characterized in that: described DBM establishes corresponding to N, T
On averageBinary channels hearing aids data parameters: 1 gain of passage 1 flex point, passage 2 flex points, passage 1 compression ratio, passage 2 compression ratios, passage, passage 2 gains, volume control, maximum output control, low cut, high frequency attenuation.
4. the apolegamy device of digital deaf-aid as claimed in claim 1, it is characterized in that: described DBM establishes corresponding to N, T
On averageBinary channels hearing aids data parameters: passage 1 flex point, passage 2 flex points, passage 1 little acoustic gain, passage 2 little acoustic gains, passage 1 big acoustic gain, passage 2 big acoustic gains, volume control, maximum output control, low cut, high frequency attenuation.
5. the apolegamy device of digital deaf-aid as claimed in claim 1, it is characterized in that: described DBM establishes corresponding to N, T
On averageFour-way hearing aids data parameters: passage 1 flex point, passage 2 flex points, passage 3 flex points, passage 4 flex points, passage 1 little acoustic gain, passage 2 little acoustic gains, passage 3 little acoustic gains, passage 4 little acoustic gains, passage 1 big acoustic gain, passage 2 big acoustic gains, passage 3 big acoustic gains, passage 4 big acoustic gains, volume control, maximum output control, low cut, high frequency attenuation.
6. like the apolegamy device of the described digital deaf-aid of one of claim 1～5, it is characterized in that: described DBM establishes corresponding to the hearing aids data parameters under the scenarios:
N≤-10, T
On average≤50;
N≤-10,50＜T
On average≤62;
N≤-10,62＜T
On average≤74;
N≤-10,74＜T
On average
-10＜N＜15, T
On average≤50;
-10＜N＜15,50＜T
On average≤62;
-10＜N＜15,62＜T
On average≤74;
-10＜N＜15,74＜T
On average
15≤N≤40, T
On average≤50;
15≤N≤40,50＜T
On average≤62;
15≤N≤40,62＜T
On average≤74;
15≤N≤40,74＜T
On average
40＜N, T
On average≤50;
40＜N, 50＜T
On average≤62;
40＜N, 62＜T
On average≤74;
40＜N, 74＜T
On average
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|---|---|---|---|
| CN2006100505872A CN1852622B (en) | 2006-04-29 | 2006-04-29 | Selective configuration device for digital hearing aid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100505872A CN1852622B (en) | 2006-04-29 | 2006-04-29 | Selective configuration device for digital hearing aid |
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|---|---|
| CN1852622A CN1852622A (en) | 2006-10-25 |
| CN1852622B true CN1852622B (en) | 2012-04-18 |
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| CN101090584B (en) * | 2007-07-10 | 2011-12-14 | 王永华 | Selection device for digital deaf-aid |
| CN111432319B (en) * | 2020-03-23 | 2021-01-26 | 杭州惠耳听力技术设备有限公司 | Configuration device and configuration method for multi-channel digital hearing aid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262023A (en) * | 1997-05-02 | 2000-08-02 | 西门子信息及通讯网络公司 | Integrated hearing aid for telecommunications device |
| WO2000067638A1 (en) * | 1999-05-07 | 2000-11-16 | Radians, Inc. | Acoustical control plastisol earpieces |
| CN1394128A (en) * | 2000-01-24 | 2003-01-29 | 奥迪亚科技股份责任有限公司 | Method and system for on-line hearing examination and correction |
-
2006
- 2006-04-29 CN CN2006100505872A patent/CN1852622B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262023A (en) * | 1997-05-02 | 2000-08-02 | 西门子信息及通讯网络公司 | Integrated hearing aid for telecommunications device |
| WO2000067638A1 (en) * | 1999-05-07 | 2000-11-16 | Radians, Inc. | Acoustical control plastisol earpieces |
| CN1394128A (en) * | 2000-01-24 | 2003-01-29 | 奥迪亚科技股份责任有限公司 | Method and system for on-line hearing examination and correction |
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