JP5149999B2 - 補聴器,ならびに過渡音の検出および減衰方法 - Google Patents
補聴器,ならびに過渡音の検出および減衰方法 Download PDFInfo
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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
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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
- H04R25/356—Amplitude, e.g. amplitude shift or compression
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- 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
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- 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
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- 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
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
Claims (22)
- マイクロフォン,信号処理装置および出力トランスデューサを備え,上記信号処理装置は,入力信号を複数の周波数チャネル入力信号に分割するフィルタ・バンクおよび上記チャネルからの出力信号を合計する加算器を有し,各周波数チャネルは,チャネル音レベル計算器,チャネル利得計算器およびチャネル増幅器を備え,各チャネル音レベル計算器はチャネル入力信号からパラメータ・セットを導出するように構成され,各チャネル利得計算器は各チャネル増幅器の利得を動的に制御するように構成され,各チャネル増幅器はユーザの処方にしたがって信号を処理するように構成され,各チャネル利得計算器および各チャネル増幅器は一緒にチャネル圧縮器を形成している補聴器であって,
上記信号処理装置は,上記フィルタ・バンクの上流に置かれた過渡音検出器を備え,上記過渡音検出器は,上記入力信号の勾配を求めて,上記入力信号の上記勾配が所定値を超える場合に上記各チャネル音レベル計算器に信号を与える手段を有しており,上記各チャネル音レベル計算器は上記導出されたパラメータ・セットに基づいて上記各周波数チャネルにおける上記チャネル利得計算器および上記チャネル増幅器の圧縮速度を制御することを特徴とする,
補聴器。 - 上記各チャネル利得計算器は,上記導出されたパラメータ・セットから選択されたパラメータを用いて上記各チャネル増幅器の利得レベルを制御する手段を有することを特徴とする,請求項1に記載の補聴器。
- 上記各チャネル音レベル計算器は,上記チャネル入力信号からチャネル・パーセンタイル・レベル,チャネル絶対平均レベルおよびチャネル・ピーク・レベルを導出する手段を備えることを特徴とする,請求項1に記載の補聴器。
- 上記入力信号の上記勾配を求める手段は,上記入力信号のピーク値差を求める手段を有することを特徴とする,請求項1に記載の補聴器。
- 上記過渡音検出器は,検出された過渡音を複数の過渡音種類に分類する手段を備えることを特徴とする,請求項1に記載の補聴器。
- 上記各チャネル音レベル計算器は,上記各チャネル利得計算器において少なくとも1つのチャネル過渡音減衰設定を作動する手段を有することを特徴とする,請求項1に記載の補聴器。
- 少なくとも1つのチャネル過渡音減衰設定を作動する上記各手段は,所定時間にわたってチャネル過渡音減衰設定を維持する手段を有することを特徴とする,請求項6に記載の補聴器。
- 所定時間にわたってチャネル過渡音減衰設定を維持する上記各手段は,少なくとも上記所定時間の継続時間の間,上記チャネル・パーセンタイル・レベルの更新を抑制する手段を有することを特徴とする,請求項7に記載の補聴器。
- 上記各チャネル利得計算器は,上記チャネル過渡音減衰設定のうちの1つが作動された場合に専用のチャネル圧縮比を上記チャネル入力信号に適用する手段を有することを特徴とする,請求項7に記載の補聴器。
- 入力信号中の広帯域過渡音を検出し,上記入力信号を複数の周波数帯に分割し,上記各周波数帯を処理するステップを含み,上記処理は,上記帯域入力信号から帯域パラメータ・セットを導出し,ユーザの処方にしたがって上記各周波数帯において帯域利得レベルを計算して上記信号に適用するステップとを含み,帯域利得レベルを計算するステップは,上記広帯域過渡音のレベルおよび上記導出された帯域パラメータ・セットのレベルにしたがって過渡音を圧縮し,上記補聴器による再生のために上記各周波数帯からの出力信号を合計するステップを含む,補聴器において過渡音信号を処理する方法。
- 上記帯域入力信号から帯域パラメータ・セットを導出するステップは,上記各周波数帯において,上記帯域入力信号から,帯域絶対平均レベル,帯域ピーク・レベルおよび帯域パーセンタイル・レベルを導出するステップを含む,請求項10に記載の方法。
- 上記入力信号中の過渡音を検出するステップは,ピーク・レベル差を計算するステップを含む,請求項10に記載の方法。
- 上記入力信号中の過渡音を検出するステップは,上記過渡音を複数の所定の過渡音種類のいずれかに分類するステップを含む,請求項10に記載の方法。
- 上記帯域利得レベルを計算するステップは,過渡音が上記複数の所定の過渡音種類のいずれに属するかを判定し,上記過渡音種類に応じて,対応する複数の利得低減ストラテジの中からいずれかの利得低減ストラテジを選択するステップを含む,請求項13に記載の方法。
- 上記所定の過渡音種類は少なくとも1つの発話過渡音種類と少なくとも1つの非発話過渡音種類とを含む,請求項13に記載の方法。
- 上記所定の過渡音種類は1つの発話過渡音種類と2つの非発話過渡音種類とを含む,請求項14に記載の方法。
- 上記選択された利得低減ストラテジは,検出された過渡音の終了後,所定の時間にわたって維持される,請求項15に記載の方法。
- 上記帯域パーセンタイル・レベル値の更新が,検出された過渡音の処理の間は抑制される,請求項17に記載の方法。
- 上記利得低減ストラテジは,上記帯域入力信号の上記ピーク・レベルにしたがって上記帯域利得を制御することを含む,請求項14から17のいずれか一項に記載の方法。
- 上記利得低減ストラテジは,上記帯域入力信号の上記帯域絶対平均レベルにしたがって上記帯域利得を制御することを含む,請求項14から17のいずれか一項に記載の方法。
- 上記利得低減ストラテジは,上記所定時間の間に上記選択された利得低減ストラテジを用いて上記検出された過渡音のダイナミック・レンジを圧縮することによって,上記帯域利得を制御することを含む,請求項14から19のいずれか一項に記載の方法。
- 上記過渡音減衰設定のいずれかが作動されるたびに,上記帯域入力信号に専用の圧縮比が適用される,請求項14から21のいずれか一項に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/EP2009/050593 WO2010083879A1 (en) | 2009-01-20 | 2009-01-20 | Hearing aid and a method of detecting and attenuating transients |
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JP2012514359A JP2012514359A (ja) | 2012-06-21 |
JP5149999B2 true JP5149999B2 (ja) | 2013-02-20 |
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JP2011542730A Active JP5149999B2 (ja) | 2009-01-20 | 2009-01-20 | 補聴器,ならびに過渡音の検出および減衰方法 |
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US (1) | US8929574B2 (ja) |
EP (1) | EP2389773B1 (ja) |
JP (1) | JP5149999B2 (ja) |
KR (1) | KR101223830B1 (ja) |
CN (1) | CN102282867B (ja) |
AU (1) | AU2009337962B2 (ja) |
CA (1) | CA2750241C (ja) |
DK (1) | DK2389773T3 (ja) |
SG (1) | SG173064A1 (ja) |
WO (1) | WO2010083879A1 (ja) |
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2009
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EP2389773B1 (en) | 2017-05-03 |
CA2750241C (en) | 2015-06-16 |
CN102282867A (zh) | 2011-12-14 |
CA2750241A1 (en) | 2010-07-29 |
KR101223830B1 (ko) | 2013-01-17 |
EP2389773A1 (en) | 2011-11-30 |
US8929574B2 (en) | 2015-01-06 |
CN102282867B (zh) | 2014-07-23 |
KR20110091555A (ko) | 2011-08-11 |
JP2012514359A (ja) | 2012-06-21 |
US20110268301A1 (en) | 2011-11-03 |
SG173064A1 (en) | 2011-08-29 |
DK2389773T3 (en) | 2017-06-19 |
WO2010083879A1 (en) | 2010-07-29 |
AU2009337962A1 (en) | 2011-08-04 |
AU2009337962B2 (en) | 2013-03-28 |
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