JP5663099B2 - 補聴器および音声再生増強方法 - Google Patents
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- 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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- 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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
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- G—PHYSICS
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- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
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- 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
- H04R25/356—Amplitude, e.g. amplitude shift or compression
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- G10L2021/065—Aids for the handicapped in understanding
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- H—ELECTRICITY
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Description
Claims (11)
- 音声増強手段および帯域分割フィルタを備え,上記音声増強手段が音声検出器および選択的ゲインコントローラを含み,上記帯域分割フィルタが入力信号を複数の周波数帯域に分割するように構成されており,上記音声検出器が,上記入力信号の複数の周波数帯域の各周波数において,ノイズレベルを検出する手段,有声音信号を検出する手段および無声音信号を検出する手段を有しており,上記選択的ゲインコントローラが,上記有声音信号のレベルが上記検出されたノイズレベルよりも高い,そのような上記複数の周波数帯域のうちの周波数帯域において,出力信号に与えられるゲインレベルを所定量だけ増加するように構成されている,補聴器。
- 上記有声音信号を検出する手段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・フィルタを備えている,請求項1に記載の補聴器。
- 上記有声音信号を検出する手段が,上記エンベロープ信号中に現れる検出された有声音周波数の数をカウントする手段,および上記検出された音声周波数の数に基づいて有声音確率レベルを算出する手段を備えている,請求項2に記載の補聴器。
- 上記無声音信号を検出する手段が,上記入力信号中の無声音のレベルを検出するためのゼロ交差回数カウンタおよび平均ゼロ交差回数カウンタを備えている,請求項3に記載の補聴器。
- 上記音声検出器が,上記入力信号中の音声の存在を示すために上記有声音確率レベルを利用する手段および上記無声音のレベルを利用する手段を備えている,請求項4に記載の補聴器。
- 上記選択的ゲインコントローラが,上記複数の周波数帯域のそれぞれにおいて検出された音声レベルと検出されたノイズレベルを比較し,上記検出された音声レベルが第2の所定量だけ上記検出されたノイズレベルを超えている,そのような上記複数の周波数帯域のうちの周波数帯域のそれぞれにおいて,第1の所定量だけ上記ゲインレベルを増加するように構成されている,請求項1に記載の補聴器。
- 請求項1に記載の第1の補聴器および第2の補聴器を備え,上記第1および第2の補聴器が,検出された有声音周波数および検出された音声レベルに関する情報を相互に交換する手段を備えている,補聴器システム。
- 上記第1および第2の補聴器が,両方の補聴器において,上記複数の周波数帯域のうちゲインレベルが増加した周波数帯域に関する情報を相互に交換するように構成されている,請求項7に記載の補聴器。
- 補聴器における音声増強方法であって,入力信号を提供し,上記入力信号を複数の周波数帯域に分割し,上記入力信号からエンベロープ信号を導出し,上記エンベロープ信号から少なくとも一つの検出有声音周波数を決定し,上記検出有声音周波数の数から有声音確率を決定し,上記入力信号から無声音レベルを決定し,ノイズレベルよりも第1の所定量だけ高い音声レベルを有する,そのような上記複数の周波数帯域のうちの周波数帯域を識別し,上記補聴器の出力信号中の上記周波数帯域のレベルを第2の所定量だけ増加する,
方法。 - 有声音確率を決定するステップは,上記エンベロープ信号の周波数相関解析を実行し,上記周波数相関解析に基づいて上記エンベロープ信号中に存在する音声周波数の数を決定し,上記決定された音声周波数の数から音声確率を算出する,請求項9に記載の方法。
- 無声音レベルを決定するステップは,上記入力信号のゼロ交差回数カウントを導出し,上記入力信号から平均ゼロ交差回数カウントを導出し,上記ゼロ交差回数カウントと平均ゼロ交差回数カウントを比較し,上記ゼロ交差回数カウントが上記平均ゼロ交差回数カウントよりも所定回数だけ多い場合を決定することによって無声音レベルを算出する,請求項9に記載の方法。
Applications Claiming Priority (1)
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PCT/EP2010/069154 WO2012076045A1 (en) | 2010-12-08 | 2010-12-08 | Hearing aid and a method of enhancing speech reproduction |
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JP2014500676A JP2014500676A (ja) | 2014-01-09 |
JP5663099B2 true JP5663099B2 (ja) | 2015-02-04 |
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JP2013542378A Active JP5663099B2 (ja) | 2010-12-08 | 2010-12-08 | 補聴器および音声再生増強方法 |
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US (1) | US9191753B2 (ja) |
EP (1) | EP2649812B1 (ja) |
JP (1) | JP5663099B2 (ja) |
KR (1) | KR101419193B1 (ja) |
CN (1) | CN103262577B (ja) |
AU (1) | AU2010365366B2 (ja) |
CA (1) | CA2818210C (ja) |
DK (1) | DK2649812T3 (ja) |
SG (1) | SG191006A1 (ja) |
WO (1) | WO2012076045A1 (ja) |
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2010
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- 2010-12-08 WO PCT/EP2010/069154 patent/WO2012076045A1/en unknown
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CN103262577B (zh) | 2016-01-06 |
SG191006A1 (en) | 2013-08-30 |
US9191753B2 (en) | 2015-11-17 |
AU2010365366A1 (en) | 2013-06-06 |
AU2010365366B2 (en) | 2014-10-02 |
JP2014500676A (ja) | 2014-01-09 |
EP2649812A1 (en) | 2013-10-16 |
CN103262577A (zh) | 2013-08-21 |
EP2649812B1 (en) | 2014-06-25 |
DK2649812T3 (da) | 2014-08-04 |
CA2818210C (en) | 2015-08-04 |
CA2818210A1 (en) | 2012-06-14 |
KR101419193B1 (ko) | 2014-07-14 |
US20130195302A1 (en) | 2013-08-01 |
WO2012076045A1 (en) | 2012-06-14 |
KR20130067315A (ko) | 2013-06-21 |
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