JP5778778B2 - 補聴器および改善された音声再生方法 - Google Patents
補聴器および改善された音声再生方法 Download PDFInfo
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- JP5778778B2 JP5778778B2 JP2013541221A JP2013541221A JP5778778B2 JP 5778778 B2 JP5778778 B2 JP 5778778B2 JP 2013541221 A JP2013541221 A JP 2013541221A JP 2013541221 A JP2013541221 A JP 2013541221A JP 5778778 B2 JP5778778 B2 JP 5778778B2
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- 238000000034 method Methods 0.000 title claims description 17
- 230000007704 transition Effects 0.000 claims description 56
- 230000005236 sound signal Effects 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 23
- 230000000875 corresponding effect Effects 0.000 description 22
- 230000006870 function Effects 0.000 description 18
- 206010011878 Deafness Diseases 0.000 description 13
- 231100000888 hearing loss Toxicity 0.000 description 12
- 230000010370 hearing loss Effects 0.000 description 12
- 208000016354 hearing loss disease Diseases 0.000 description 12
- 238000001514 detection method Methods 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 10
- 238000010219 correlation analysis Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 8
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 208000032041 Hearing impaired Diseases 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000003623 enhancer Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 208000009966 Sensorineural Hearing Loss Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000005428 wave function Effects 0.000 description 2
- 206010011891 Deafness neurosensory Diseases 0.000 description 1
- 208000000258 High-Frequency Hearing Loss Diseases 0.000 description 1
- 206010027476 Metastases Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000003477 cochlea Anatomy 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011478 gradient descent method Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 231100000885 high-frequency hearing loss Toxicity 0.000 description 1
- 230000009474 immediate action Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000879 sensorineural hearing loss Toxicity 0.000 description 1
- 208000023573 sensorineural hearing loss disease Diseases 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
- H04R25/353—Frequency, e.g. frequency shift or compression
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Otolaryngology (AREA)
- Neurosurgery (AREA)
- General Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Telephone Function (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Circuit For Audible Band Transducer (AREA)
Description
Claims (13)
- 入力信号を高周波数帯域および低周波数帯域に分割する手段(52)と,
上記高周波数帯域における第1の特徴周波数を検出可能な第1の周波数検出器(31)および上記低周波数帯域における第2の特徴周波数を検出可能な第2の周波数検出器(32)を備え,検出された第1の特徴周波数と検出された第2の特徴周波数の両方が同じ基本周波数の高調波であってかつ検出された第1の特徴周波数が偶数高調波周波数であることを確認し,これらが確認されたときに検出された第1の特徴周波数を転移のための基礎として選択する周波数追跡装置(22)と,
周波数シフト信号を生成するために上記高周波数帯域からの信号を,上記第1の特徴周波数が上記第2の特徴周波数に一致することになる適切な距離だけ低周波数がわにシフトする手段(23,24,70)と,
上記周波数シフト信号を上記低周波数帯域の入力信号に重畳し,上記周波数シフト信号と上記低周波数帯域の入力信号の結合信号を出力トランスデューサ(56)にもたらす出力セレクタ(55)と,
を備える補聴器。 - 上記第1の周波数検出器(31)が第1のノッチ勾配を有する第1のノッチ・フィルタであり,上記第2の周波数検出器(32)が第2のノッチ勾配を有する第2のノッチ・フィルタである,請求項1に記載の補聴器。
- 上記周波数追跡装置(22)が,上記第1および第2のノッチ勾配を結合することによって結合勾配を生成する手段(34)を備えている,請求項2に記載の補聴器。
- 上記高周波数帯域の信号を上記低周波数帯域にシフトする手段(23,24,70)が結合勾配を生成する上記手段(34)によって制御される,請求項3に記載の補聴器。
- 上記入力信号における有声音信号の存在を検出する手段(81)および無声音信号の存在を検出する手段(82)を備えている,請求項1に記載の補聴器。
- 上記有声音信号の存在を検出する手段(81)が上記有声音信号の周波数シフトをできなくする手段(97)を含む,請求項5に記載の補聴器。
- 上記無声音信号の存在を検出する手段(82)が上記無声音信号の周波数シフトを可能にする手段(96)を含む,請求項5に記載の補聴器。
- 上記有声音信号の存在を検出する手段(81)が上記入力信号からエンベロープ信号を抽出するエンベロープ・フィルタ(83)を含む,請求項5に記載の補聴器。
- 上記無声音信号の存在を検出する手段(82)が上記エンベロープ信号における無声音レベルを検出するためのゼロ交差回数カウンタ(93)および平均ゼロ交差回数カウンタ(94)を含む,請求項8に記載の補聴器。
- 入力信号を取得し,
上記入力信号における高周波数帯域中の第1の優位周波数を検出し,
上記入力信号における低周波数帯域中の第2の優位周波数を検出し,
上記入力信号の上記高周波数帯域中の第1の周波数範囲を上記入力信号の上記低周波数帯域中の第2の周波数範囲にシフトし,
上記入力信号の周波数シフトされた第1の周波数範囲を上記入力信号の第2の周波数範囲に重畳する,
補聴器において音周波数をシフトする方法であって,
上記検出された第1の優位周波数と上記検出された第2の優位周波数の両方が同じ基本周波数の高調波であってかつ上記検出された第1の優位周波数が偶数高調波周波数であることを確認し,
これらが確認されたときに,
上記検出された第1の優位周波数を転移のための基礎として選択し,
上記第1の周波数範囲をシフトするステップが,上記高周波数帯域からの信号を上記第1の優位周波数が上記第2の優位周波数に一致することになる適切な距離だけ低周波数がわにシフトする,
方法。 - 上記入力信号における第1の優位周波数および第2の優位周波数を検出するステップが,上記入力信号から第1のノッチ勾配および第2のノッチ勾配を導出することを含む,請求項10に記載の方法。
- 上記第1の周波数範囲をシフトするステップが,上記第1のノッチ勾配と第2のノッチ勾配を結合して結合勾配とすること,および上記入力信号の上記第1の周波数範囲を上記入力信号の上記第2の周波数範囲にシフトするために上記結合勾配を用いることを含む,請求項11に記載の方法。
- 上記第1の優位周波数および上記第2の優位周波数を検出するステップが,上記入力信号中の有声音信号および無声音信号の存在をそれぞれ検出し,上記無声音信号の周波数シフトを増強し,かつ有声音信号の周波数シフトを抑制するステップを含む,請求項11に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2010/069145 WO2012076044A1 (en) | 2010-12-08 | 2010-12-08 | Hearing aid and a method of improved audio reproduction |
Publications (2)
Publication Number | Publication Date |
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JP2013544476A JP2013544476A (ja) | 2013-12-12 |
JP5778778B2 true JP5778778B2 (ja) | 2015-09-16 |
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JP2013541221A Active JP5778778B2 (ja) | 2010-12-08 | 2010-12-08 | 補聴器および改善された音声再生方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US9111549B2 (ja) |
EP (1) | EP2649813B1 (ja) |
JP (1) | JP5778778B2 (ja) |
KR (1) | KR101465379B1 (ja) |
CN (1) | CN103250209B (ja) |
AU (1) | AU2010365365B2 (ja) |
CA (1) | CA2820761C (ja) |
DK (1) | DK2649813T3 (ja) |
SG (1) | SG191025A1 (ja) |
WO (1) | WO2012076044A1 (ja) |
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-
2010
- 2010-12-08 WO PCT/EP2010/069145 patent/WO2012076044A1/en active Application Filing
- 2010-12-08 KR KR1020137012290A patent/KR101465379B1/ko active IP Right Grant
- 2010-12-08 AU AU2010365365A patent/AU2010365365B2/en active Active
- 2010-12-08 DK DK10790834.5T patent/DK2649813T3/en active
- 2010-12-08 JP JP2013541221A patent/JP5778778B2/ja active Active
- 2010-12-08 CA CA2820761A patent/CA2820761C/en active Active
- 2010-12-08 CN CN201080070566.1A patent/CN103250209B/zh active Active
- 2010-12-08 EP EP10790834.5A patent/EP2649813B1/en active Active
- 2010-12-08 SG SG2013043575A patent/SG191025A1/en unknown
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Publication number | Publication date |
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US9111549B2 (en) | 2015-08-18 |
CN103250209A (zh) | 2013-08-14 |
EP2649813A1 (en) | 2013-10-16 |
DK2649813T3 (en) | 2017-09-04 |
CA2820761A1 (en) | 2012-06-14 |
WO2012076044A1 (en) | 2012-06-14 |
AU2010365365B2 (en) | 2014-11-27 |
US20130182875A1 (en) | 2013-07-18 |
CA2820761C (en) | 2015-05-19 |
AU2010365365A1 (en) | 2013-06-06 |
KR20130072258A (ko) | 2013-07-01 |
EP2649813B1 (en) | 2017-07-12 |
CN103250209B (zh) | 2015-08-05 |
SG191025A1 (en) | 2013-07-31 |
JP2013544476A (ja) | 2013-12-12 |
KR101465379B1 (ko) | 2014-11-27 |
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