CN103067840B - Method for Improving Voice Instant Output and Hearing Aid - Google Patents
Method for Improving Voice Instant Output and Hearing Aid Download PDFInfo
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- CN103067840B CN103067840B CN201210301908.7A CN201210301908A CN103067840B CN 103067840 B CN103067840 B CN 103067840B CN 201210301908 A CN201210301908 A CN 201210301908A CN 103067840 B CN103067840 B CN 103067840B
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims description 40
- 230000008676 import Effects 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 description 12
- 230000003111 delayed effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010370 hearing loss Effects 0.000 description 1
- 231100000888 hearing loss Toxicity 0.000 description 1
- 208000016354 hearing loss disease Diseases 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
A method for improving voice real-time output and a hearing aid are provided. Firstly, input sound is cut into a plurality of sound segments, and then the attributes of the sound segments are judged to be high frequency, low frequency and silence respectively. When outputting voice, the low frequency sound segment is not processed by frequency conversion, the high frequency sound segment is processed by frequency conversion and then output, and all or part of the mute sound segment is eliminated without output, so as to reduce or eliminate the delay of playing the non-mute sound segment.
Description
Technical field
The present invention relates to a kind of hearing aids for the person that listens to barrier.
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 andfrequency 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.
If only carry out frequency reducing for part high-frequency sound, then distortion will reduce, but this involves a large amount of computing, therefore the problem of delay can be caused, usually be not suitable for the process of real-time phonetic, such as applicant is in No. 099141772nd, patent application (U.S. Patent application the 13/064th, No. 645) though can reduce distortion, and the problem having output delay produces.
Therefore, under how reducing the situation of distortion of voice output, the problem that also can reduce voice output delay has to be needed to be solved.
Summary of the invention
Voice are in the process of process frequency conversion, and the phenomenon be delayed sometimes, causes the voice of output can not synchronism output, and main purpose of the present invention is to promote the method that voice export immediately.
For reaching above-mentioned object, the present invention includes the following step:
This sound import is cut into multiple acoustic segment.
Acoustic segment by finding at least two kinds of different attributes in multiple acoustic segment:
Quiet acoustic segment, the acoustic energy of quiet acoustic segment is less than an acoustic energy threshold value;
Non-mute acoustic segment, the acoustic energy of non-mute acoustic segment is greater than an acoustic energy threshold value, and in an embodiment, non-mute acoustic segment is divided into high frequency and low frequency two attribute.
Multiple acoustic segment of output, wherein:
All export after carrying out frequency-conversion processing for all or part of non-mute acoustic segment.In an embodiment, when the attribute of non-mute acoustic segment is high frequency, then frequency-conversion processing will be carried out; When the attribute of non-mute acoustic segment is low frequency, then do not carry out frequency-conversion processing.
And
Eliminate for this quiet acoustic segment all or part of and do not export.
Utilize above-mentioned step, all or part of non-mute acoustic segment carries out frequency-conversion processing and generation time postpones, by eliminating this quiet acoustic segment all or part of, to reduce or to eliminate the delay of playing non-mute acoustic segment.
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 explains the schematic diagram of process sound of the present invention;
Fig. 4 explains the schematic diagram of process sound of the present invention.
Wherein, Reference numeral
Hearing aids 10 radio reception device 11
Acoustic processing module 12 voice output module 13
Sound import 20 transforms sound import 21
Sound source 80 tins of barrier persons 81
Embodiment
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularly go out specific embodiments of the invention, and coordinate appended accompanying drawing, be described in detail below.
Hearing aids 10 of the present invention comprises radio reception device 11, acoustic processing module 12 and voice output module 13.The sound import 20 that radio reception device 11 sends for receiving sound source 80, after transferring to acoustic processing module 12 to process, is exported by voice output module 13.Radio reception device 11 can be that microphone etc. is any can the equipment of radio reception, and voice output module 13 can comprise loud speaker, 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.For example with mobile phone, after processor performs the software program in memory body, cooperation sound chip, microphone and loudspeaker (circumscribed or earphone) namely form the main frame as Fig. 1 acoustic processing module 12, present cell phone processor execution speed is accelerated, and mobile phone coordinates suitable software to become hearing aids.
Then please refer to Fig. 2, about the flow chart of steps of acoustic processing module of the present invention.Another please also refer to Fig. 3 and Fig. 4, about the schematic diagram of related embodiment of the present invention, Fig. 3 and Fig. 4 presents schematic diagram in the mode (0 ~ stage of stage 11) of every one-phase then every one-phase (step by step), understands emphasis of the present invention to facilitate.
Step 201:
Receive a sound import 20.
This step is completed by radio reception device 11, is received from the sound import 20 that sound source 80 sends.
Step 202:
Sound import 20 is cut into multiple acoustic segment.
Please refer to " stage 0 " of Fig. 3, sound import 20 cut is for convenience of description noted as S1 according to time sequencing, S2, S3.... acoustic segment, and the attribute of each acoustic segment (S1 ~ S11) is noted as " L ", " H ", or " Q ".For example acoustic segment S1 is noted as " L " the sound deflection low-frequency sound of meaning representative voice section S1; As acoustic segment S3 is noted as " H " meaning representative voice section S3 sound deflection high-frequency sound; And be noted as acoustic segment S8 " Q " the sound of meaning representative voice section S8 be quiet (such as decibels is lower than less than 15).
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 ~ 00.1 second of acoustic segment is pretty good.
Step 203:
Acoustic segment by finding at least two kinds of different attributes in multiple acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-mute acoustic segment, the acoustic energy of this non-mute acoustic segment is greater than an acoustic energy threshold value.
Acoustic processing module 12 except being cut into except multiple acoustic segment by sound import 20, and will judge the attribute of each acoustic segment " L ", " H ", or " Q ".Whether acoustic segment is quiet (" Q ") be very easy to judge, as long as substantially give an acoustic energy threshold value (as 15 decibels), as long as be then judged as quiet lower than the threshold value of setting.As long as acoustic energy is all non-mute acoustic segment higher than threshold value, in the present embodiment, non-mute acoustic segment is divided at least two attribute, is noted as " L " (low-frequency sound) or " H " (high-frequency sound).
Sound as acoustic segment is deflection high-frequency sound or low-frequency sound, and the main mode judged is situation according to the person that listens to barrier and determines.Generally speaking, the frequency that human language is linked up is 20 hertz ~ 16000 hertz, and the person that generally listens to barrier is difficult to hear the frequency of more than 3000 hertz or 4000 hertz, and listen barrier degree to get over severe, then the high-frequency range can heard is fewer.Therefore each acoustic segment attribute for " L " or " H " namely with the person that listens to barrier as judgement.About how judging which acoustic segment belongs to " L " or the judgment mode of " H " a lot, such as analyze each acoustic segment with or without the sound occurred higher than a certain hertz (as 3000 hertz), but this kind of plain mode is more not accurate on judging.Applicant also discloses in No. 099141772nd, patent application (U.S. Patent application the 13/064th, No. 645) and judges with high frequency or low frequency energy, such as is several feasible judgment modes below:
If 1000 hertz (Hz) is account for 30% at most with the acoustic energy of lower frequency, and 2500 hertz (Hz) at least accounts for 70% for high frequency with the acoustic energy of upper frequency " H " attribute, otherwise belong to low frequency " L " attribute.
If 1000 hertz (Hz) is at least account for 30% with the acoustic energy of lower frequency, be low frequency " L " attribute, otherwise belong to high frequency " H " attribute.
If 1000 hertz (Hz) account for 30% at most with the acoustic energy of lower frequency, be high frequency " H " attribute, otherwise belong to low frequency " L " attribute.
If 2500 hertz (Hz) at least account for 70% with the acoustic energy of upper frequency, be high frequency " H " attribute, otherwise belong to low frequency " L " attribute.
Acoustic processing module 12 can be spoken segment substantially in a cutting, judges its attribute at once, also often can cut out as 5 acoustic segment, judge that the basis of the attribute of each acoustic segment carries out again.
Step 204:
Multiple acoustic segment of output, wherein:
All export after carrying out frequency-conversion processing for all or part of non-mute acoustic segment; And
Eliminate for this quiet acoustic segment all or part of and do not export.
In the present embodiment, only for non-mute acoustic segment but attribute carries out frequency-conversion processing for " H " (high-frequency sound), for non-mute acoustic segment but attribute does not carry out frequency-conversion processing for " L " (low-frequency sound).This is because listen to barrier, person is difficult to hear high-frequency sound, and therefore attribute is the acoustic segment of " H " is " need process acoustic segment ", and the acoustic segment that attribute is " L " is " not needing to process acoustic segment ".In order to listen to barrier, person hears high-frequency sound, and therefore frequency-conversion processing is essentially the process reducing sound frequency, such as with voltage-frequency or frequency shift mode process.Technology about voltage-frequency or shift frequency is known technology, does not repeat them here.It is noted that in order to make to listen to barrier, person hears high-frequency sound, and conventional art is the process carrying out whole section of sound to reduce sound frequency, and the audio distortions therefore processed is very serious.Patent application No. 099141772 (U.S. Patent application the 13/064th, No. 645) be namely improve this problem, but employing first determines whether high frequency or low frequency, determine again only to carry out processing for high-frequency sound section, have the problem of delay, therefore patent application No. 099141772 (U.S. Patent application the 13/064th is adopted, No. 645) technology the problem comparatively obviously postponed had for instantaneity voice output produce, therefore namely the present invention improves for this problem.
Below please refer to Fig. 3 and Fig. 4 describing about embodiment.
In the stage 0: state at the beginning, ask for an interview the explanation of step 202 about mark.
Stage, 1: the first acoustic segment S1 attribute was low frequency " L ", therefore do not carry out frequency-conversion processing and then export.It is noted that for making to listen to barrier, person hears sound, and the acoustic segment of output generally will through amplifying process (increase acoustic energy).
Stage, 2: the second acoustic segment S2 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
Stage, 3: the three acoustic segment S3 attributes were high frequency " H ", therefore need to carry out frequency-conversion processing, need the time owing to carrying out frequency-conversion processing, now start the output that is delayed, acoustic segment S3 now cannot export immediately.For convenience of explain orally for the purpose of, in the stage 3 with acoustic segment SX as a virtual output, acoustic segment SX in fact voiceless sound also represents the period of delay.
Stage, 4: the four acoustic segment S4 attributes were high frequency " H ", therefore need to carry out frequency-conversion processing, two acoustic segment times are equaled at the present embodiment hypothesis process frequency conversion required time, therefore acoustic segment S3 still cannot export, therefore certain S4 yet cannot export in process frequency conversion, and another same acoustic segment SX adds the stage 4.
Stage 5: because acoustic segment S3 has handled well, therefore output sound section S3.As seen from the figure, if completely without postponing, the stage 5 time, acoustic segment S5 should export, but because there are two to postpone SX, therefore the stage 5 time, acoustic segment S3 just exports.
Stage 6: because acoustic segment S4 has handled well, therefore output sound section S4.
Stage, 7: the five acoustic segment S5 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
Stage, 8: the six acoustic segment S6 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
Stage, 9: the seven acoustic segment S7 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.As seen from the figure, the delay in stage 3 is an acoustic segment time (SX), and is two acoustic segment times (two SX) from the delay in 4 ~ stage of stage 9.
Stage 10: next acoustic segment S8, acoustic segment S9 and acoustic segment S10 are quiet.The present invention is directed to all or part of quiet acoustic segment eliminate and do not export.With this embodiment, because be delayed two acoustic segment times, therefore acoustic segment S8 and acoustic segment S9 does not export, an output sound section S10.
Therefore have Delay time before, namely the present invention not export all or part of quiet sound, reduces or eliminates delay to reach.Suppose that at present accumulation has the delay of 6 acoustic segment, and if have 4 quiet acoustic segment below, then 4 quiet acoustic segment do not export; When having 8 quiet acoustic segment below, then there are 6 quiet acoustic segment not export, but 2 quiet acoustic segment can be exported.
Generally speaking, voice are linked up high-frequency sound section and are accounted for minimum (usually less than 10%), and all-bottom sound segment accounts at most, and it is many that quiet acoustic segment is more than high-frequency sound section.Therefore when acoustic processing module 12 enough fast time, remove some quiet acoustic segment and can make up high-frequency sound section and carry out the time that frequency conversion postpones.
Stage 11: the, 11 acoustic segment S11 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.Delay is not had to there occurs in stage 11 output sound section S11 display.
It is noted that acoustic processing module 12 can comprise voice emplifying and noise Processing for removing substantially in general hearing aids, the above-mentioned process due to voice emplifying and noise elimination is not emphasis of the present invention, and therefore no longer this repeats.
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. promote the method that voice export immediately, for a hearing aids, it is characterized in that, the method comprises:
Receive a sound import;
This sound import is cut into multiple acoustic segment;
Acoustic segment by finding at least two kinds of different attributes in multiple acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-mute acoustic segment, the acoustic energy of this non-mute acoustic segment is greater than an acoustic energy threshold value;
Multiple acoustic segment of output, wherein:
All export after carrying out frequency-conversion processing for all or part of non-mute acoustic segment; And
Eliminate for this quiet acoustic segment all or part of and do not export;
Utilize above-mentioned step, all or part of non-mute acoustic segment carries out frequency-conversion processing and generation time postpones, by eliminating this quiet acoustic segment all or part of, to reduce or to eliminate the delay of playing non-mute acoustic segment.
2. the method that immediately exports of enhancement voice according to claim 1, is characterized in that, non-mute acoustic segment comprises not to be needed process acoustic segment and need process acoustic segment two kinds, wherein when multiple acoustic segment of output:
When acoustic segment is for processing acoustic segment, need processes after acoustic segment carries out frequency-conversion processing and export; And
When acoustic segment is not for needing to process acoustic segment, process acoustic segment will not be needed not carry out frequency-conversion processing output.
3. the method that immediately exports of enhancement voice according to claim 2, is characterized in that, frequency-conversion processing is reduce the process of sound frequency.
4. the method that immediately exports of enhancement voice according to claim 3, is characterized in that, reduces the process of sound frequency with voltage-frequency or frequency shift mode process.
5. the method that immediately exports of enhancement voice according to claim 3, is characterized in that, does not need process acoustic segment to be conform with following condition: 1000 hertz at least account for 30% with the acoustic energy of lower frequency.
6. the method that immediately exports of enhancement voice according to claim 3, it is characterized in that, need process acoustic segment is conform with following wherein at least one condition:
1000 hertz account for 30% at most with the acoustic energy of lower frequency and 2500 hertz at least account for 70% with the acoustic energy of upper frequency;
2500 hertz at least account for 70% with the acoustic energy of upper frequency;
1000 hertz account for 30% at most with the acoustic energy of lower frequency; Or
2500 hertz at least account for 70% with the acoustic energy of upper frequency.
7. the method that the enhancement voice according to claim 1 to 6 any one export immediately, is characterized in that, the time span of each acoustic segment is between 0.0001 ~ 0.1 second.
8. a hearing aids, 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;
Acoustic segment by finding at least two kinds of different attributes in multiple acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-mute acoustic segment, the acoustic energy of this non-mute acoustic segment is greater than an acoustic energy threshold value;
Frequency-conversion processing is carried out for all or part of non-mute acoustic segment;
Eliminate for this quiet acoustic segment all or part of; And
One voice output module, is electrically connected with this acoustic processing module, in order to export all or part of multiple acoustic segment after this acoustic processing module process;
Utilize above-mentioned structure, all or part of non-mute acoustic segment carries out frequency-conversion processing and generation time postpones, by eliminating this quiet acoustic segment all or part of, to reduce or to eliminate the delay of playing non-mute acoustic segment.
9. hearing aids according to claim 8, is characterized in that, non-mute acoustic segment comprises not to be needed process acoustic segment and need process acoustic segment two kinds, wherein when multiple acoustic segment of output:
When acoustic segment is for processing acoustic segment, need processes after acoustic segment carries out frequency-conversion processing and export; And
When acoustic segment is not for needing to process acoustic segment, process acoustic segment will not be needed not carry out frequency-conversion processing output.
10. hearing aids according to claim 9, is characterized in that, frequency-conversion processing is reduce the process of sound frequency.
11. hearing aidss according to claim 10, is characterized in that, reduce the process of sound frequency with voltage-frequency or frequency shift mode process.
12. hearing aidss according to claim 10, is characterized in that, do not need process acoustic segment to be conform with following condition: 1000 hertz at least account for 30% with the acoustic energy of lower frequency.
13. hearing aidss according to claim 10, is characterized in that, need process acoustic segment is conform with following wherein at least one condition:
1000 hertz account for 30% at most with the acoustic energy of lower frequency and 2500 hertz at least account for 70% with the acoustic energy of upper frequency;
2500 hertz at least account for 70% with the acoustic energy of upper frequency;
1000 hertz account for 30% at most with the acoustic energy of lower frequency; Or
2500 hertz at least account for 70% with the acoustic energy of upper frequency.
Hearing aids described in 14. according to Claim 8 to 13 any one, it is characterized in that, the time span of each acoustic segment is between 0.0001 ~ 0.1 second.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100138125 | 2011-10-20 | ||
| TW100138125A TWI451405B (en) | 2011-10-20 | 2011-10-20 | Hearing aid and method of enhancing speech output in real time |
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| CN103067840A CN103067840A (en) | 2013-04-24 |
| CN103067840B true CN103067840B (en) | 2015-10-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104427433A (en) * | 2013-08-20 | 2015-03-18 | 杨国屏 | Sound processing method and open-type broadcasting device |
| EP2988529B1 (en) * | 2014-08-20 | 2019-12-04 | Sivantos Pte. Ltd. | Adaptive separation frequency in hearing aids |
| CN106157966B (en) * | 2015-04-15 | 2019-08-13 | 宏碁股份有限公司 | Speech signal processing device and audio signal processing method |
| TWI603627B (en) * | 2015-07-03 | 2017-10-21 | 元鼎音訊股份有限公司 | Method and computer program product of processing voice segment and hearing aid |
| CN106101969A (en) * | 2016-08-18 | 2016-11-09 | 孟玲 | Promote the sonifer that voice exports immediately |
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| CN101227759A (en) * | 2007-01-15 | 2008-07-23 | 上海杰得微电子有限公司 | Earphone device with automatic volume control function |
| CN102136272A (en) * | 2010-01-26 | 2011-07-27 | 雅马哈株式会社 | Masker sound generation apparatus |
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| KR100860805B1 (en) * | 2000-08-14 | 2008-09-30 | 클리어 오디오 리미티드 | Voice enhancement system |
| CA2792336C (en) * | 2010-03-19 | 2018-07-24 | Digimarc Corporation | Intuitive computing methods and systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101227759A (en) * | 2007-01-15 | 2008-07-23 | 上海杰得微电子有限公司 | Earphone device with automatic volume control function |
| CN101060724A (en) * | 2007-04-25 | 2007-10-24 | 比特联创电子（北京）有限公司 | A method for avoiding the hearing injury of audio equipment and electro-acoustic device made through this method |
| CN102136272A (en) * | 2010-01-26 | 2011-07-27 | 雅马哈株式会社 | Masker sound generation apparatus |
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| TW201317983A (en) | 2013-05-01 |
| TWI451405B (en) | 2014-09-01 |
| CN103067840A (en) | 2013-04-24 |
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