CN103067840A - 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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- CN103067840A CN103067840A CN2012103019087A CN201210301908A CN103067840A CN 103067840 A CN103067840 A CN 103067840A CN 2012103019087 A CN2012103019087 A CN 2012103019087A CN 201210301908 A CN201210301908 A CN 201210301908A CN 103067840 A CN103067840 A CN 103067840A
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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 listening the barrier person.
Background technology
The development of hearing aids is of long duration, and main concept is that sound is amplified, and to help the listening barrier person to hear originally unheard sound, the processing that sound is amplified can produce delay hardly.If hearing aids is processed for frequency in addition, normally sound frequency is reduced, such as prior art United States Patent (USP) the 6th, 577, No. 739 " Apparatus and methods for proportional audio compression and frequency shifting " with voice signal with the compression of certain ratio after, offer and listen the barrier person to what certain particular range had a hearing loss, so this technology is that all sound is done compression, although can immediately export, meeting is so that audio distortions is serious.
If only carry out frequency reducing for the part high-frequency sound, then distortion will reduce, yet this involves a large amount of computings, therefore can cause the problem of delay, usually be not suitable for the processing of real-time phonetic, for example the applicant though can reduce distortion, has the problem generation of output delay in No. the 099141772nd, patent application (No. the 13/064th, 645, U.S. Patent application).
Therefore how to reduce under the situation of distortion of voice output, also can reduce the problem that voice output postpones has and need to be solved.
Summary of the invention
Voice produce the phenomenon that postpones sometimes in the process of processing frequency conversion, cause the voice of output not export synchronously, and main purpose of the present invention is to promote the method for the instant output of voice.
For reaching above-mentioned purpose, the present invention includes the following step:
This sound import is cut into a plurality of acoustic segment.
Acoustic segment by at least two kinds of different attributes of searching in a plurality of acoustic segment:
Quiet acoustic segment, the acoustic energy of quiet acoustic segment is less than an acoustic energy threshold value;
Non-quiet acoustic segment, the acoustic energy of non-quiet acoustic segment are greater than an acoustic energy threshold value, and in an embodiment, non-quiet acoustic segment is divided into high frequency and two kinds of attributes of low frequency.
A plurality of acoustic segment of output, wherein:
Carry out all exporting after the frequency-conversion processing for all or part of non-quiet acoustic segment.In an embodiment, when the attribute of non-quiet acoustic segment is high frequency, then to carry out frequency-conversion processing; When the attribute of non-quiet acoustic segment is low frequency, then do not carry out frequency-conversion processing.
And
Eliminate and do not export for all or part of this quiet acoustic segment.
Utilize above-mentioned step, all or part of non-quiet acoustic segment is carried out frequency-conversion processing and the generation time delay, can be by eliminating all or part of this quiet acoustic segment, to reduce or to eliminate the delay of the non-quiet acoustic segment of broadcast.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
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 that the present invention processes the schematic diagram of sound;
Fig. 4 explains that the present invention processes the schematic diagram of sound.
Wherein, Reference numeral
Acoustic processing module 12 voice output modules 13
Sound import 20 is transformed sound import 21
80 tins of barrier persons 81 of sound source
Embodiment
For above and other purpose of the present invention, feature and advantage can be become apparent, cited below particularlyly go out specific embodiments of the invention, and cooperate appended accompanying drawing, be described in detail below.
Then please refer to Fig. 2, about the flow chart of steps of acoustic processing module of the present invention.Please in the lump with reference to figure 3 and Fig. 4, about the schematic diagram of related embodiment of the present invention, the mode (0～stage of stage 11) that Fig. 3 and Fig. 4 follow every one-phase (step by step) with every one-phase presents schematic diagram in addition, with convenient understanding emphasis of the present invention.
Step 201:
Receive a sound import 20.
This step is finished by radio reception device 11, is received from the sound import 20 that sound source 80 is sent.
Step 202:
Sound import 20 is cut into a plurality of acoustic segment.
Please refer to Fig. 3 " stage 0 ", the sound import that is cut for the purpose of for convenience of description 20 is noted as S1 according to time sequencing, S2, and the S3.... acoustic segment, and each acoustic segment (attribute of 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; S3 is noted as such as acoustic segment " H " the sound deflection high-frequency sound of meaning representative voice section S3; And be noted as such as acoustic segment S8 " Q " the sound of meaning representative voice section S8 be quiet (such as decibels is lower than below 15).
The time span suggestion of each acoustic segment is between 0.0001 ~ 0.1 second, with (software of made is carried out in I-Phone4 according to the present invention) in the experiment of I-Phone4 as hearing aids, the time span of acoustic segment effect between 0.0001 ~ 00.1 second is pretty good.
Step 203:
Acoustic segment by at least two kinds of different attributes of searching in a plurality of acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-quiet acoustic segment, the acoustic energy of this non-quiet acoustic segment is greater than an acoustic energy threshold value.
Acoustic processing module 12 is except being cut into sound import 20 a plurality of acoustic segment, and will judge the attribute of each acoustic segment " L ", " H ", or " Q ".Whether acoustic segment is quiet (" Q ") be very easy to judge, basically as long as to an acoustic energy threshold value (such as 15 decibels), then be judged as quiet as long as be lower than the threshold value of setting.As long as acoustic energy is higher than all quiet acoustic segment of right and wrong of threshold value, in the present embodiment, non-quiet acoustic segment is divided at least two kinds of attributes, is noted as " L " (low-frequency sound) or " H " (high-frequency sound).
Sound as for acoustic segment is deflection high-frequency sound or low-frequency sound, and the main mode of judging is to decide according to the situation of listening the barrier person.Generally speaking, the frequency that human language is linked up is 20 hertz ~ 16000 hertz, and the person that generally listens to the barrier is difficult to hear the frequency more than 3000 hertz or 4000 hertz, listens a barrier degree to get over severe, and the high-frequency range that then can hear is fewer.Therefore the attribute of each acoustic segment be " L " or " H " namely with tin barrier person as judgement.About how judging which acoustic segment is to belong to " L " or the judgment mode of " H " a lot, for example analyzes each acoustic segment and have or not the sound that a certain hertz (such as 3000 hertz) occur being higher than, yet this kind plain mode is more not accurate on judging.The applicant also discloses with high frequency or low frequency energy and judges in No. the 099141772nd, patent application (No. the 13/064th, 645, U.S. Patent application), is several feasible judgment modes below for example:
If 1000 hertz (Hz) is to account at most 30% with the acoustic energy of lower frequency, and 2500 hertz (Hz) accounts for 70% as high frequency at least take the acoustic energy of upper frequency " H " attribute, otherwise belong to low frequency " L " attribute.
If 1000 hertz (Hz) is to account at least 30% as low frequency take the acoustic energy of lower frequency " L " attribute, otherwise belong to high frequency " H " attribute.
If 1000 hertz (Hz) accounts at most 30% as high frequency take the acoustic energy of lower frequency " H " attribute, otherwise belong to low frequency " L " attribute.
If 2500 hertz (Hz) accounts for 70% as high frequency at least take the acoustic energy of upper frequency " H " attribute, otherwise belong to low frequency " L " attribute.
Acoustic processing module 12 basically can one the cutting segment of speaking, judge also whenever to cut out its attribute such as 5 acoustic segment at once, judge that again batch mode of the attribute of each acoustic segment is carried out.
Step 204:
A plurality of acoustic segment of output, wherein:
Carry out all exporting after the frequency-conversion processing for all or part of non-quiet acoustic segment; And
Eliminate and do not export for all or part of this quiet acoustic segment.
In present embodiment, only for non-quiet acoustic segment but attribute carries out frequency-conversion processing for " H " (high-frequency sound), for non-quiet acoustic segment but attribute does not carry out frequency-conversion processing for " L " (low-frequency sound).This is because listen a barrier person to be difficult to hear high-frequency sound, so attribute be that the acoustic segment of " H " is " needing to process acoustic segment ", and attribute be the acoustic segment of " L " is " need not process acoustic segment ".In order to listen a barrier person to hear high-frequency sound, so frequency-conversion processing is essentially the processing that reduces sound frequency, for example processes with voltage-frequency or frequency shift mode.Technology about voltage-frequency or shift frequency is known technology, does not repeat them here.Should be noted that listen the barrier person to hear high-frequency sound in order to make, conventional art is the processing that whole section sound is reduced sound frequency, the audio distortions of therefore processing is very serious.No. 099141772 (U.S. Patent application the 13/064th of patent application, No. 645) namely be to improve this problem, determine whether first high frequency or low frequency yet adopt, determine again only to process the problem that then has delay for the high-frequency sound section, therefore adopt No. 099141772 (U.S. Patent application the 13/064th of patent application, No. 645) technology voice output has the problem that obviously postpones and produces for instantaneity, so the present invention namely improves for this problem.
Below please refer to Fig. 3 and Fig. 4 about the narration of embodiment.
Stage 0: state at the beginning, the explanation of asking for an interview step 202 about mark.
Stage 1: first acoustic segment S1 attribute is low frequency " L ", therefore do not carry out frequency-conversion processing and then export.Should be noted, listen the barrier person to hear sound for making, the acoustic segment of output generally will be processed (increase acoustic energy) through amplifying.
Stage 2: the second acoustic segment S2 attribute is low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
3: the stages, three acoustic segment S3 attributes were high frequency " H ", therefore need to carry out frequency-conversion processing, need the time owing to carry out frequency-conversion processing, begin generation this moment and postpone output, acoustic segment S3 can't export this moment immediately.For the purpose of convenient the explanation, in the stage 3 with acoustic segment SX as a virtual output, acoustic segment SX in fact voiceless sound also represents period of delay.
4: the stages, four acoustic segment S4 attributes were high frequency " H ", therefore need to carry out frequency-conversion processing, process the frequency conversion required time in the present embodiment hypothesis and equal two acoustic segment times, therefore acoustic segment S3 still can't export, certainly S4 is yet processing frequency conversion so also can't export, and same another acoustic segment SX adds the stage 4.
Stage 5: owing to acoustic segment S3 has handled well, so output sound section S3.As seen from the figure, if fully without delay, 5 o'clock stages, acoustic segment S5 should export, but because there are two to postpone SX, therefore just exported at 5 o'clock stages acoustic segment S3.
Stage 6: owing to acoustic segment S4 has handled well, so output sound section S4.
7: the stages, five acoustic segment S5 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
8: the stages, six acoustic segment S6 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.
9: the stages, 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: acoustic segment S8 next, acoustic segment S9 and acoustic segment S10 are quiet.The present invention is directed to all or part of quiet acoustic segment eliminates and does not export.With this embodiment, because postponed two acoustic segment times, so acoustic segment S8 and acoustic segment S9 do not export an output sound section S10.
When therefore delay being arranged, the present invention namely 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 there are 4 quiet acoustic segment the back, then 4 quiet acoustic segment are not exported; When there are 8 quiet acoustic segment the back, then there are 6 quiet acoustic segment not export, but can export 2 quiet acoustic segment.
Generally speaking, voice are linked up the high-frequency sound section and are accounted for minimumly (usually below 10%), and the all-bottom sound segment accounts at most, and quiet acoustic segment has been Duoed many than the high-frequency sound section.Therefore reach when fast when acoustic processing module 12, remove some quiet acoustic segment and can remedy the high-frequency sound section and carry out the time that frequency conversion postpones.
11: the stages, 11 acoustic segment S11 attributes were low frequency " L ", therefore do not carry out frequency-conversion processing and then export.Show that at stages 11 output sound section S11 delay has not occured.
Should be noted that acoustic processing module 12 can comprise voice emplifying and noise Processing for removing basically in the general hearing aids, above-mentioned because the processing that voice emplifying and noise are eliminated not is emphasis of the present invention, therefore no longer this gives unnecessary details.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (14)
1. a method of promoting the instant output of voice is used for a hearing aids, it is characterized in that the method comprises:
Receive a sound import;
This sound import is cut into a plurality of acoustic segment;
Acoustic segment by at least two kinds of different attributes of searching in a plurality of acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-quiet acoustic segment, the acoustic energy of this non-quiet acoustic segment is greater than an acoustic energy threshold value;
A plurality of acoustic segment of output, wherein:
Carry out all exporting after the frequency-conversion processing for all or part of non-quiet acoustic segment; And
Eliminate and do not export for all or part of this quiet acoustic segment;
Utilize above-mentioned step, all or part of non-quiet acoustic segment is carried out frequency-conversion processing and the generation time delay, can be by eliminating all or part of this quiet acoustic segment, to reduce or to eliminate the delay of the non-quiet acoustic segment of broadcast.
2. the method for the instant output of enhancement voice according to claim 1 is characterized in that, non-quiet acoustic segment comprises need not be processed acoustic segment and need to process two kinds of acoustic segment, wherein when a plurality of acoustic segment of output:
When acoustic segment is that need process acoustic segment carries out exporting after the frequency-conversion processing when needing the processing acoustic segment; And
When acoustic segment for need not process acoustic segment the time, will need not process acoustic segment not carry out frequency-conversion processing output.
3. the method for the instant output of enhancement voice according to claim 2 is characterized in that, frequency-conversion processing is for reducing the processing of sound frequency.
4. the method for the instant output of enhancement voice according to claim 3 is characterized in that, reduces the processing of sound frequency and processes with voltage-frequency or frequency shift mode.
5. the method for the instant output of enhancement voice according to claim 3, it is characterized in that need not process acoustic segment is to conform with following condition: 1000 hertz of acoustic energy with lower frequency account for 30% at least.
6. the method for the instant output of enhancement voice according to claim 3 is characterized in that, needing to process acoustic segment is to conform with following wherein at least one condition:
1000 hertz of acoustic energy with lower frequency account at most 30% and 2500 hertz of acoustic energy with upper frequency and account at least 70%;
2500 hertz of acoustic energy with upper frequency account for 70% at least;
1000 hertz of acoustic energy with lower frequency account at most 30%; Or
2500 hertz of acoustic energy with upper frequency account for 70% at least.
7. according to claim 1 to the method for the instant output of the described enhancement voice of 6 any one, it 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 is 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 a plurality of acoustic segment;
Acoustic segment by at least two kinds of different attributes of searching in a plurality of acoustic segment:
Quiet acoustic segment, the acoustic energy of this quiet acoustic segment is less than an acoustic energy threshold value;
Non-quiet acoustic segment, the acoustic energy of this non-quiet acoustic segment is greater than an acoustic energy threshold value;
Carry out frequency-conversion processing for all or part of non-quiet acoustic segment;
Eliminate for all or part of this quiet acoustic segment; And
One voice output module is electrically connected with this acoustic processing module, in order to export all or part of a plurality of acoustic segment after this acoustic processing resume module;
Utilize above-mentioned structure, all or part of non-quiet acoustic segment is carried out frequency-conversion processing and the generation time delay, can be by eliminating all or part of this quiet acoustic segment, to reduce or to eliminate the delay of the non-quiet acoustic segment of broadcast.
9. hearing aids according to claim 8 is characterized in that, non-quiet acoustic segment comprises need not be processed acoustic segment and need process two kinds of acoustic segment, wherein when a plurality of acoustic segment of output:
When acoustic segment is that need process acoustic segment carries out exporting after the frequency-conversion processing when needing the processing acoustic segment; And
When acoustic segment for need not process acoustic segment the time, will need not process acoustic segment not carry out frequency-conversion processing output.
10. hearing aids according to claim 9 is characterized in that, frequency-conversion processing is for reducing the processing of sound frequency.
11. hearing aids according to claim 11 is characterized in that, reduces the processing of sound frequency and processes with voltage-frequency or frequency shift mode.
12. hearing aids according to claim 10 is characterized in that, need not process acoustic segment is to conform with following condition: 1000 hertz of acoustic energy with lower frequency account for 30% at least.
13. hearing aids according to claim 10 is characterized in that, needing to process acoustic segment is to conform with following wherein at least one condition:
1000 hertz of acoustic energy with lower frequency account at most 30% and 2500 hertz of acoustic energy with upper frequency and account at least 70%;
2500 hertz of acoustic energy with upper frequency account for 70% at least;
1000 hertz of acoustic energy with lower frequency account at most 30%; Or
2500 hertz of acoustic energy with upper frequency account for 70% at least.
14. to the described hearing aids of 13 any one, it is characterized in that according to claim 8 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 true CN103067840A (en) | 2013-04-24 |
| CN103067840B CN103067840B (en) | 2015-10-21 |
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| CN104427433A (en) * | 2013-08-20 | 2015-03-18 | 杨国屏 | Sound processing method and open-type broadcasting device |
| CN105392097A (en) * | 2014-08-20 | 2016-03-09 | 西万拓私人有限公司 | adaptive separation frequency in hearing aids |
| CN106101969A (en) * | 2016-08-18 | 2016-11-09 | 孟玲 | Promote the sonifer that voice exports immediately |
| CN106157966A (en) * | 2015-04-15 | 2016-11-23 | 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 |
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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 |
| CN105392097A (en) * | 2014-08-20 | 2016-03-09 | 西万拓私人有限公司 | adaptive separation frequency in hearing aids |
| CN105392097B (en) * | 2014-08-20 | 2019-06-11 | 西万拓私人有限公司 | Suitability frequency dividing in hearing aid |
| CN106157966A (en) * | 2015-04-15 | 2016-11-23 | 宏碁股份有限公司 | Speech signal processing device and audio signal processing method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI451405B (en) | 2014-09-01 |
| CN103067840B (en) | 2015-10-21 |
| TW201317983A (en) | 2013-05-01 |
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