CN103096232A - Frequency self-adaptation method and device used for hearing aid - Google Patents
Frequency self-adaptation method and device used for hearing aid Download PDFInfo
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- CN103096232A CN103096232A CN2013100630482A CN201310063048A CN103096232A CN 103096232 A CN103096232 A CN 103096232A CN 2013100630482 A CN2013100630482 A CN 2013100630482A CN 201310063048 A CN201310063048 A CN 201310063048A CN 103096232 A CN103096232 A CN 103096232A
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Abstract
The invention provides a frequency self-adaptation method used for a hearing aid. The frequency self-adaptation method used for the hearing aid includes the steps: S1, conducting analog-to-digital conversion on environment sound information which comprises sound frequency information; S2, judging whether the sound frequency information coincides with the preset sound frequency information, entering the step S4 when the sound frequency information coincides with preset sound frequency information and entering the step S3 when the sound frequency information does not coincide with the preset sound frequency information; S3, adjusting the sound frequency information and enabling the sound frequency information to drop in the preset sound frequency range and entering the step S4; S4, conducting analog-to-digital conversion on digitized audio and outputting the audio. The invention further discloses a frequency self-adaptation device used for the hearing aid. The frequency self-adaptation method and the device used for the hearing aid can conduct frequency adjustment on sound in a specific frequency section, translate the frequency of signals in the specific frequency section to a frequency section where a patient can well hear and improve hearing aiding quality of the hearing aid.
Description
Technical field
The present invention relates to a kind of hearing aids field, particularly a kind of method and apparatus of the frequency self-adaption for hearing aids.
Background technology
Hearing aids is one and helps hearing disabilities person to improve dysacousis, and then instrument, unit and the instrument etc. of raising and his conference communicative competence.All in a broad sense various devices that can be effectively sound be imported into ear can be seen hearing aids as, say that narrowly hearing aids is exactly an electroacoustic amplifier, the deaf person had been heard originally the sound amplification by it and can not hear clearly, unheard sound, this device is exactly hearing aids.
Hearing aids a multitude of names, but the operation principle of all electronic hearing aids is the same.Hearing aids comprises 6 basic structures: 1. microphone (microphone or microphone) receives sound and it is converted into the electric wave form, namely acoustic energy is converted into electric energy; 2. amplifier amplification signal (transistor amplifying circuit); 3. earphone (receiver) is converted into acoustical signal (being namely acoustic energy) to the signal of telecommunication to electric energy conversion; 4. ear mold (earplug) is inserted external auditory meatus; 5. volume control switch; 6. power supply is for the dry cell of amplifier.
In prior art, general hearing aids adopts the analog signal amplification mechanism, suitably high, medium and low frequency signal is adjusted, to reach applicable requirement.In practical application, the Deaf and Hard of Hearing Talents is arranged at normal frequency range Hearing, and some frequency band hearing still can situation, common hearing aids just amplifies signal amplitude, is difficult to satisfy the requirement that the patient is satisfied with to each frequency range sound quality.
Summary of the invention
The present invention proposes a kind of method and apparatus of the frequency self-adaption for hearing aids, has solved the problem that the Deaf and Hard of Hearing Talents can not listen the sound of some frequency range.
Technical scheme of the present invention is achieved in that
The invention discloses a kind of method of the frequency self-adaption for hearing aids, comprising:
S1. environmental voice information is carried out mould/number conversion, described environmental voice information comprises sound frequency information;
S2. judge whether sound frequency information is consistent with default sound frequency, if, enter step S4, if not, enter step S3;
S3. adjust described sound frequency information, it is fallen in default audio frequency range, enter step S4;
S4. described digitized audio frequency is carried out D/A switch and output.
Method as the frequency self-adaption for hearing aids of the present invention is further improved, and also comprises step S0, records in the given time environmental sound signal and processes.
Method as the frequency self-adaption for hearing aids of the present invention is further improved, and the sound that the processing described in step S0 is recorded comprises: environmental sound signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
The invention discloses a kind of device of the frequency self-adaption for hearing aids, comprising:
The A/D converting unit is used for environmental voice information is carried out mould/number conversion, and described environmental voice information comprises sound frequency information;
The sound frequency judging unit is used for judging whether sound frequency information is consistent with default sound frequency;
The sound frequency adjustment unit is used for adjusting described sound frequency information, and it is fallen in default audio frequency range;
The D/A converting unit is used for described digitized audio frequency is carried out D/A switch and output.
Device as the frequency self-adaption for hearing aids of the present invention further improves, and also comprises the voice signal recording elements before described A/D converting unit, records in the given time ambient sound and processes.
Device as the frequency self-adaption for hearing aids of the present invention further improves, and the sound that described processing is recorded comprises: voice signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
Implement the method and apparatus of a kind of frequency self-adaption for hearing aids of the present invention, have following useful technique effect:
The technical program can be carried out the frequency adjustment with the sound of characteristic frequency section, and the frequency with the signal of special frequency channel moves to patient's hearing frequency range preferably, thereby improves the hearing aid quality of hearing aids.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram of a kind of frequency self-adaption for hearing aids of the present invention;
Fig. 2 a is the device construction block diagram of a kind of frequency self-adaption for hearing aids of the present invention;
Fig. 2 b is Fig. 2 a work schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 1, preferred embodiment of the present invention, a kind of method of the frequency self-adaption for hearing aids comprises:
S1. environmental voice information is carried out mould/number conversion, described environmental voice information comprises sound frequency information;
S2. judge whether sound frequency information is consistent with default sound frequency, if, enter step S4, if not, enter step S3;
Wherein, default sound frequency after the sound frequency characteristic parameter of presetting is processed, is set up a model for the normal sound frequency range of perception of Deaf and Hard of Hearing Talents, saves as reference template.In the comparison stage, voice signal obtains speech characteristic parameter through identical passage, generates test template, mate with reference template, thereby whether judge sound frequency information consistent with default sound frequency.
S3. adjust described sound frequency information, it is fallen in default audio frequency range, enter step S4;
Hearing aids frequency translation algorithm adopts the audio signal digitizing technology, with the simulated audio signal digitlization, use the Mathematical Modeling algorithm to carry out frequency identification, then carry out the digitization frequencies translation, the last rear output of simulation reduction of carrying out again digitized audio, thus reach frequency translation target.
S4. described digitized audio frequency is carried out D/A switch and output.
Preferably, also comprise step S0, record in the given time environmental sound signal and process, process the sound of recording and comprise: environmental sound signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
See also the device of Fig. 2 a, a kind of frequency self-adaption for hearing aids, comprising:
A/D converting unit 10 is used for environmental voice information is carried out mould/number conversion, and described environmental voice information comprises sound frequency information;
Sound frequency judging unit 20 is used for judging whether sound frequency information is consistent with default sound frequency;
Sound frequency adjustment unit 30 is used for adjusting described sound frequency information, and it is fallen in default audio frequency range;
D/A converting unit 40 is used for described digitized audio frequency is carried out D/A switch and output.
Preferably, also comprise voice signal recording elements 5 before A/D converting unit 10, record in the given time ambient sound and process.The sound that processing is recorded comprises: voice signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
Wherein, the end-point detection technology can be confirmed starting point and the end point of language from a segment information of the language that comprises various information, effectively the end-point detection technology can not only reduce the processing time of system, the disposal ability of raising system, and can discharge the noise jamming of voiceless sound end, thereby the performance of language identification is improved greatly.
Generally speaking, normal analog signal is input to the ADC(analog-digital converter) become normal digital signal after processing, this signal is input to the DSP(digital signal processor again) become the digital signal of frequency translation after processing, this signal inputs to again the DAC(digital analog converter) become the analog signal after the frequency translation after processing, as shown in Fig. 2 b.
The hearing aids proportion translation algorithm of the technical program can significantly improve hearing aids hearing aid quality and level, brings better experience to the user.Audio signal digitizing is the core mechanism of frequency translation, and the Mathematical treatment after the digitlization of audio frequency is the frequency translation, and then with the reduction of the digitized audio after translation, thereby obtains being fit to the useful signal of particular patient.
Implement the method and apparatus of a kind of frequency self-adaption for hearing aids of the present invention, have following useful technique effect:
The technical program can be carried out the frequency adjustment with the sound of characteristic frequency section, and the frequency with the signal of special frequency channel moves to patient's hearing frequency range preferably, thereby improves the hearing aid quality of hearing aids.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a method that is used for the frequency self-adaption of hearing aids, is characterized in that, comprising:
S1. environmental voice information is carried out mould/number conversion, described environmental voice information comprises sound frequency information;
S2. judge whether sound frequency information is consistent with default sound frequency, if, enter step S4, if not, enter step S3;
S3. adjust described sound frequency information, it is fallen in default audio frequency range, enter step S4;
S4. described digitized audio frequency is carried out D/A switch and output.
2. the method for the frequency self-adaption for hearing aids according to claim 1, is characterized in that, also comprises step S0, records in the given time environmental sound signal and process.
3. the method for the frequency self-adaption for hearing aids according to claim 2, is characterized in that, the sound that the processing described in step S0 is recorded comprises: environmental sound signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
4. a device that is used for the frequency self-adaption of hearing aids, is characterized in that, comprising:
The A/D converting unit is used for environmental voice information is carried out mould/number conversion, and described environmental voice information comprises sound frequency information;
The sound frequency judging unit is used for judging whether sound frequency information is consistent with default sound frequency;
The sound frequency adjustment unit is used for adjusting described sound frequency information, and it is fallen in default audio frequency range;
The D/A converting unit is used for described digitized audio frequency is carried out D/A switch and output.
5. the device of the frequency self-adaption for hearing aids according to claim 4, is characterized in that, also comprises the voice signal recording elements before described A/D converting unit, records in the given time ambient sound and process.
6. the device of the frequency self-adaption for hearing aids according to claim 5, is characterized in that, the sound that described processing is recorded comprises: voice signal is carried out preliminary treatment, end-point detection, spectrum analysis, feature extraction.
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| CN2013100630482A CN103096232A (en) | 2013-02-27 | 2013-02-27 | Frequency self-adaptation method and device used for hearing aid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139868A (en) * | 2015-07-28 | 2015-12-09 | 苏州宏展信息科技有限公司 | speech frequency automatic compensation control method for recording pen |
| CN106157952A (en) * | 2016-08-30 | 2016-11-23 | 北京小米移动软件有限公司 | Sound identification method and device |
| CN107240406A (en) * | 2017-07-10 | 2017-10-10 | 上海力声特医学科技有限公司 | Speech processes/speech therapy method, system, storage medium, external machine and cochlea |
| CN113613155A (en) * | 2021-07-24 | 2021-11-05 | 武汉左点科技有限公司 | Hearing aid method and device adaptive to environment |
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| CN101496420A (en) * | 2005-06-08 | 2009-07-29 | 加利福尼亚大学董事会 | Methods, devices and systems using signal processing algorithms to improve speech intelligibility and listening comfort |
| CN101595452A (en) * | 2006-12-22 | 2009-12-02 | Step实验室公司 | The near-field vector signal strengthens |
| EP2148527A1 (en) * | 2008-07-24 | 2010-01-27 | Oticon A/S | System for reducing acoustic feedback in hearing aids using inter-aural signal transmission, method and use |
| CN101904183A (en) * | 2009-03-09 | 2010-12-01 | 松下电器产业株式会社 | Hearing aid |
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| CN101496420A (en) * | 2005-06-08 | 2009-07-29 | 加利福尼亚大学董事会 | Methods, devices and systems using signal processing algorithms to improve speech intelligibility and listening comfort |
| CN101595452A (en) * | 2006-12-22 | 2009-12-02 | Step实验室公司 | The near-field vector signal strengthens |
| EP2148527A1 (en) * | 2008-07-24 | 2010-01-27 | Oticon A/S | System for reducing acoustic feedback in hearing aids using inter-aural signal transmission, method and use |
| CN101904183A (en) * | 2009-03-09 | 2010-12-01 | 松下电器产业株式会社 | Hearing aid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139868A (en) * | 2015-07-28 | 2015-12-09 | 苏州宏展信息科技有限公司 | speech frequency automatic compensation control method for recording pen |
| CN106157952A (en) * | 2016-08-30 | 2016-11-23 | 北京小米移动软件有限公司 | Sound identification method and device |
| CN107240406A (en) * | 2017-07-10 | 2017-10-10 | 上海力声特医学科技有限公司 | Speech processes/speech therapy method, system, storage medium, external machine and cochlea |
| CN113613155A (en) * | 2021-07-24 | 2021-11-05 | 武汉左点科技有限公司 | Hearing aid method and device adaptive to environment |
| CN113613155B (en) * | 2021-07-24 | 2024-04-26 | 武汉左点科技有限公司 | Hearing aid method and device for self-adaptive environment |
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Application publication date: 20130508 |