CN104244155A - Voice segment processing method and hearing-aid - Google Patents
Voice segment processing method and hearing-aid Download PDFInfo
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- CN104244155A CN104244155A CN201310225287.3A CN201310225287A CN104244155A CN 104244155 A CN104244155 A CN 104244155A CN 201310225287 A CN201310225287 A CN 201310225287A CN 104244155 A CN104244155 A CN 104244155A
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- 238000003672 processing method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims description 80
- 230000008676 import Effects 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 206010011878 Deafness Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010370 hearing loss Effects 0.000 description 2
- 231100000888 hearing loss Toxicity 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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Abstract
A voice segment processing method and a hearing-aid are provided; the voice segment processing method comprises the following steps: detecting whether a voice segment is a vowel segment or not; if the voice segment is not a vowel segment, further detecting the voice segment is a high frequency consonant segment or a low frequency consonant segment; if the voice segment is a high frequency consonant segment, carrying out frequency lowering treatment for the voice segment.
Description
Technical field
The present invention relates to the method for processed voice, especially for listen to barrier person, old man etc.
Background technology
The development of hearing aids is long-standing, and main concept is amplified by sound, and to help listening to barrier, person hears unheard sound originally, the process that sound amplifies is delayed hardly.If hearing aids processes for frequency in addition, normally sound frequency is reduced, for example prior art United States Patent (USP) the 6th, 577, No. 739 " Apparatus and methods for proportional audio compression and frequency shifting ", by voice signal with after certain scale compression, be supplied to the person that listens to barrier certain particular range being had to hearing loss, so this technology does all sound to compress, although can immediately export, audio distortions can be made serious.
Prior art United States Patent (USP) the 4th, 454, No. 609 " Speech intelligibility enhancement " does for the consonant sound of high frequency and strengthens, and the ratio of central high-frequency sound is higher, then more high-frequency contents are enhanced.This invention is done for the consonant of high frequency and is strengthened, but for when having consonant to occur, the occasion for real-time phonetic process is very difficult, is not therefore suitable for hearing aids.
Prior art United States Patent (USP) the 6th, 577, No. 739 " Apparatus and methods for proportional audio compression and frequency shifting " by voice signal with after certain scale compression, be supplied to the person that listens to barrier certain particular range being had to hearing loss, so this technology does all sound to compress, and audio distortions can be made serious.
No. 2007/0127748th, prior art U.S. Patent Publication " Sound enhancement for hearing-impaired listeners " has the acoustic segment (sound segment) disclosing and high-frequency sound section to be treated to compared with low frequency, but there is no and propose all-bottom sound segment and how to process, also whether should do one separate to carry out process sound without distinguishing vowel and consonant.
Therefore will develop one can instant processed voice, such as is applied on hearing aids, simplified operation and increase can listen to barrier person hears that the method for sound correctness is needs.
Summary of the invention
Main purpose of the present invention is to provide a kind of increase person that listens to barrier to hear method and the hearing aids of sound correctness.
For reaching above-mentioned object, the method for process acoustic segment of the present invention comprises the following steps:
Check whether an acoustic segment is a vowel section, if this acoustic segment is not vowel section, then the step after carrying out.
Check that this acoustic segment is a high frequency consonant section or low frequency consonant section:
When this acoustic segment is high frequency consonant section, then a low frequency process is carried out to this acoustic segment, and
Carry out energy for consonant section (high frequency consonant section or low frequency consonant section) and amplify process or sound elongation process.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
The integrated stand composition of Fig. 1 hearing aids of the present invention;
The flow chart of steps of Fig. 2 acoustic processing module of the present invention;
Fig. 3 sound import is cut to the schematic diagram of multiple acoustic segment;
Fig. 4 has the frequency diagram of the sound import of low frequency consonant and vowel;
Fig. 5 has the frequency diagram of the sound import of high frequency consonant and vowel;
Fig. 6 the present invention is about schematic diagram high frequency consonant being carried out a low frequency process;
Fig. 7 has the amplitude schematic diagram of the sound import of consonant and vowel;
The schematic diagram that the energy of consonant acoustic segment amplifies by Fig. 8 the present invention;
The schematic diagram that the consonant acoustic segment time is elongated by Fig. 9 the present invention.
Wherein, Reference numeral
Hearing aids 10 radio reception device 11
Acoustic processing module 12 loud speaker 13
Sound import 20,20a, 20b
Acoustic segment 21,21a, 21b, 21c
The person 81 that listens to barrier
Embodiment
For can more understand technology contents of the present invention, be described as follows especially exemplified by preferred embodiment.
Below please refer to the integrated stand composition of Fig. 1 hearing aids of the present invention.
Hearing aids 10 of the present invention comprises radio reception device 11, acoustic processing module 12 and loud speaker 13.Radio reception device 11, for receiving sound import 20, after transferring to acoustic processing module 12 to process, is broadcasted to the person 81 that listens to barrier by loud speaker 13.Radio reception device 11 can be that microphone etc. is any can the equipment of radio reception, and loud speaker 13(also can have amplifier) can be any equipment broadcast such as earphone, but the present invention is not limited with the above-mentioned device enumerated.Acoustic processing module 12 is generally audio effect processing chip collocation control circuit, amplifying circuit formed; Also can be processor, technical solution that memory body collocation control circuit, amplifying circuit form.The emphasis of acoustic processing module 12 is the amplification process of voice signal, filter out noise, change sound frequency composition and in order to reach the process that the object of the invention needs, because acoustic processing module 12 can be arranged in pairs or groups new firmware or software with existing hardware, therefore the hardware structure of acoustic processing module 12 repeats no more.Hearing aids 10 of the present invention can be by the special machine of hardware specialization substantially, also can be minicom as PDA, PDA mobile phone, or intelligent mobile phone and personal computer.
Then please refer to Fig. 2, is the flow chart of steps about acoustic processing module of the present invention.Another please also refer to Fig. 3 to Fig. 9 to understand the present invention.
Step 201: receive sound import 20, this step is completed by radio reception device 11.
Step 202: sound import 20 is cut into multiple acoustic segment 21.The time span suggestion of each acoustic segment is between 0.0001 ~ 0.1 second, with I-Phone4 as (software made by the present invention performs in I-Phone4) in the experiment of hearing aids, time span effect between 0.0001 ~ 0.1 second of acoustic segment is pretty good.
Step 203: check whether acoustic segment is a vowel section.Multiple acoustic segment sequentially checks.If current checked acoustic segment is vowel, then carry out checking next acoustic segment.If not vowel, then carry out step 204.Please refer to Fig. 4, sound import 20a has low frequency consonant and vowel, such as " ㄆ ㄠ (Pao) " of Chinese or " Pin " of English, before one section be consonant, after one section be vowel.The netted stain representative of Fig. 4 display is at the energy of a certain frequency, and netted stain is more intensive, and to represent energy higher, and black line part represents concentration of energy in a certain frequency.
When carrying out inspection acoustic segment 21a, because the non-vowel of acoustic segment 21a, therefore carry out step 204.When carrying out inspection acoustic segment 21b, because acoustic segment 21b is vowel, does not then process and carrying out checking next acoustic segment.
About how judging whether acoustic segment is a vowel section, ask for an interview the vowel of Fig. 4, the characteristic of vowel usually has 2 ~ 100 (according to vowel, and everyone tone color of pronunciation is different) section harmonic phenomena (harmonic phenomenon), concentration of energy is the frequency of 2 ~ 100 sections, about the characteristic of vowel owing to being known knowledge, do not repeat them here.
Step 204: check whether this acoustic segment is a high frequency consonant section.If high frequency consonant Duan Ze carry out step 205, if not high frequency consonant Duan Ze carry out step 206.It is noted that step 204 also can change into " checking whether this acoustic segment is a low frequency consonant section " certainly, just exchange "Yes", the path of "No".
Check whether an acoustic segment is whether high frequency consonant section focuses on the Energy distribution of this consonant section in high frequency region, judge whether an acoustic segment is that high frequency consonant section or low frequency consonant section have many modes, when a certain acoustic segment at least accounts for 50% of this acoustic segment gross energy in the energy of more than 2500 hertz, suggestion is considered to high frequency consonant section.
For example carry out checking that acoustic segment 21a is less than 50% of gross energy in the energy of more than 2500 hertz, be not therefore considered to high frequency consonant section.Refer to Fig. 5, sound import 20b has high frequency consonant and vowel, for example " ㄗ ㄠ (Zao) " of Chinese or " see " of English, wherein acoustic segment 21c is greater than 50% of gross energy, so be considered to high frequency consonant in the energy of more than 2500 hertz.
Step 205: a low frequency process is carried out to this acoustic segment.The voltage-frequency process that low frequency process is for example conventional or shift frequency process, or both voltage-frequency process and shift frequency process share, suggestion first carries out voltage-frequency for high band (such as region of 4000 hertz to 10000 hertz), carry out shift frequency again, for example for acoustic segment 21c, voltage-frequency process is carried out in the region of 4000 of acoustic segment 21c hertz to 10000 hertz, voltage-frequency to 5000 ~ 4000 hertz, again by 5000 ~ 4000 hertz toward moving down 1000 hertz (shift frequencies), but the part of 0 ~ 4000 hertz does not process.
Step 206: this acoustic segment is carried out energy and amplify process or sound elongation process.The characteristic of consonant is usually minor, such as is usually like this in the pronunciation of Chinese, so can carry out the amplification of energy for high frequency consonant or low frequency consonant, as Fig. 7 shows the energy of consonant, and consonant is after energy amplifies, as Fig. 8 display, this can allow the person that listens to barrier more can know to hear consonant.Should be noted, in step 206, consonant section amplified, do not represent and do not amplified by the energy of vowel section, person needs amplification of volume usually to listen to barrier, for example amplify three times, step 206 refers to amplifies first especially for consonant energy, especially detect the energy of consonant section lower time (as ㄈ and ㄏ of Chinese, English F and H), for example directly amplify three times again at loud speaker 13 afterwards, therefore the energy enlargement ratio of some consonant section exceeds vowel.Also not all consonant all needs special amplified energy in addition, and for Chinese, high frequency consonant (many high frequency audios are aspirants) more needs energy to amplify than low frequency consonant, and therefore high frequency consonant compares the process needing step 206.In addition for the person that slightly listens to barrier, step 206 also can not need.
Carrying out energy except allowing consonant acoustic segment to amplify except process, also acoustic segment can be carried out elongations process, especially for the more serious person that listens to barrier, need elongation (particularly short consonant is as the ㄊ of Chinese, with the T of English).Certainly in step 206, can allow consonant acoustic segment carry out elongations process can but not amplified energy also can, also can an amplified energy, or amplified energy carry out elongation and process (as Fig. 9) simultaneously.If consonant acoustic segment carries out elongation process certainly, then need the phenomenon that can cause delay when real-time voice process in hearing aids is this, these needs compensate, about the technology compensated not emphasis of the present invention, the case (U.S. Patent Application No. 13/833,009) can applied for reference to same applicant.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (14)
1. process a method for acoustic segment, it is characterized in that, comprising:
Check whether an acoustic segment is a vowel section, if this acoustic segment is not vowel section, then carries out:
Check that this acoustic segment is a high frequency consonant section or low frequency consonant section:
When this acoustic segment is high frequency consonant section, then a low frequency process is carried out to this acoustic segment.
2. the method for process acoustic segment according to claim 1, is characterized in that, this low frequency process comprises a voltage-frequency process or a shift frequency process.
3. the method for process acoustic segment according to claim 2, is characterized in that, the high band that this low frequency process comprises for this acoustic segment carries out this voltage-frequency process and carries out this shift frequency process.
4. the method for process acoustic segment according to claim 3, is characterized in that, this high band at least comprises the region of 4000 hertz to 10000 hertz.
5. the method for process acoustic segment according to claim 4, is characterized in that, is when this acoustic segment at least accounts for 50% of this acoustic segment gross energy in the energy of more than 2500 hertz when be judged as high frequency consonant section when this acoustic segment.
6. the method for process acoustic segment according to claim 5, is characterized in that, judges this acoustic segment whether be vowel section be to check whether this acoustic segment has harmonic phenomena.
7. the method for process acoustic segment according to claim 6, is characterized in that, when this acoustic segment is high frequency consonant section, more this acoustic segment is carried out energy and amplifies process or sound elongation process.
8. the method for process acoustic segment according to claim 7, is characterized in that, when this acoustic segment is low frequency consonant section, more this acoustic segment is carried out energy and amplifies process or sound elongation process.
9. the method for process acoustic segment according to claim 2, is characterized in that, when this acoustic segment is high frequency consonant section, more this acoustic segment is carried out energy and amplifies process or sound elongation process.
10. the method for process acoustic segment according to claim 9, is characterized in that, when this acoustic segment is low frequency consonant section, more this acoustic segment is carried out energy and amplifies process or sound elongation process.
11. 1 kinds of hearing aidss, is characterized in that, comprising:
One radio reception device, in order to receive a sound import;
One acoustic processing module, is electrically connected with this radio reception device, in order to:
This sound import is cut into multiple acoustic segment;
Check whether each acoustic segment is a vowel section, if this acoustic segment is not vowel section, then carries out:
Check that this acoustic segment is a high frequency consonant section or low frequency consonant section:
When this acoustic segment is high frequency consonant section, then a low frequency process is carried out to this acoustic segment; And a loud speaker, in order to above-mentioned treated or untreated the plurality of acoustic segment is exported.
12. hearing aidss according to claim 12, is characterized in that, the high band that this low frequency process comprises for this acoustic segment carries out this voltage-frequency process and carries out this shift frequency process.
13. hearing aidss according to claim 12, is characterized in that, judge this acoustic segment whether be vowel section be to check whether this acoustic segment has harmonic phenomena.
14. hearing aidss according to claim, is characterized in that, when this acoustic segment is consonant section, more this acoustic segment is carried out energy and amplify process or sound elongates process.
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| CN201310225287.3A CN104244155A (en) | 2013-06-07 | 2013-06-07 | Voice segment processing method and hearing-aid |
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| CN201310225287.3A CN104244155A (en) | 2013-06-07 | 2013-06-07 | Voice segment processing method and hearing-aid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156307A (en) * | 2016-12-02 | 2018-06-12 | 塞舌尔商元鼎音讯股份有限公司 | The method and voice communication device of speech processes |
| CN108461090A (en) * | 2017-02-21 | 2018-08-28 | 宏碁股份有限公司 | Speech signal processing device and audio signal processing method |
| CN110648686A (en) * | 2018-06-27 | 2020-01-03 | 塞舌尔商元鼎音讯股份有限公司 | Method for adjusting voice frequency and voice playing device thereof |
| CN111107478A (en) * | 2019-12-11 | 2020-05-05 | 江苏爱谛科技研究院有限公司 | Sound enhancement method and sound enhancement system |
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| CN101256776A (en) * | 2007-02-26 | 2008-09-03 | 财团法人工业技术研究院 | Method for processing voice signal |
| 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 |
| CN101939784A (en) * | 2009-01-29 | 2011-01-05 | 松下电器产业株式会社 | Hearing aid and hearing-aid processing method |
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| US20040175010A1 (en) * | 2003-03-06 | 2004-09-09 | Silvia Allegro | Method for frequency transposition in a hearing device and a hearing device |
| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156307A (en) * | 2016-12-02 | 2018-06-12 | 塞舌尔商元鼎音讯股份有限公司 | The method and voice communication device of speech processes |
| CN108461090A (en) * | 2017-02-21 | 2018-08-28 | 宏碁股份有限公司 | Speech signal processing device and audio signal processing method |
| CN108461090B (en) * | 2017-02-21 | 2021-07-06 | 宏碁股份有限公司 | Speech signal processing apparatus and speech signal processing method |
| CN110648686A (en) * | 2018-06-27 | 2020-01-03 | 塞舌尔商元鼎音讯股份有限公司 | Method for adjusting voice frequency and voice playing device thereof |
| CN111107478A (en) * | 2019-12-11 | 2020-05-05 | 江苏爱谛科技研究院有限公司 | Sound enhancement method and sound enhancement system |
| US11570553B2 (en) | 2019-12-11 | 2023-01-31 | Jiangsu aidiSciTech Reseach Institute Co., Ltd. | Method and apparatus for sound enhancement |
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Effective date of registration: 20150911 Address after: Seychelles Republic of Eden business center, room 1 Applicant after: SEYCHELLES SHANGYUANDING AUDIO CO., LTD. Address before: Taiwan, Taipei, China Charity road 3 paragraph 18, No. 1, 4 floor Applicant before: Yang Guoping |
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Application publication date: 20141224 |