JPWO2012042768A1 - 音声処理装置および音声処理方法 - Google Patents
音声処理装置および音声処理方法 Download PDFInfo
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- 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
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
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- 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
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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
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
-
- 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
- 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
- G10L21/0208—Noise filtering
- G10L2021/02087—Noise filtering the noise being separate speech, e.g. cocktail party
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- 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
- 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
- G10L21/06—Transformation of speech into a non-audible representation, e.g. speech visualisation or speech processing for tactile aids
- G10L2021/065—Aids for the handicapped in understanding
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- 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
- G10L25/78—Detection of presence or absence of voice signals
- G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
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- 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
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
-
- 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
- G10L25/78—Detection of presence or absence of voice signals
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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
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
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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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/552—Binaural
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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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/558—Remote control, e.g. of amplification, frequency
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Abstract
Description
Vi,j(k)=−1
Siが発話音声有り、かつ、Sjが発話音声無しのとき、
Vi,j(k)=1
Siが発話音声無し、かつ、Sjが発話音声有りのとき、
Vi,j(k)=1
Siが発話音声無し、かつ、Sjが発話音声無しのとき、
Vi,j(k)=−1
MAX−MIN < α かつ MIN ≧ β ・・・・・・(3)
SMAX1−SMAX2 ≧ γ ・・・・・・(4)
Ci,j(t) = ε・Ci,j(t−1)+
(1−ε)[Ri,j(t)+Ti,j(t)+
(1−Di,j(t))+(1−Si,j(t)) ]
・・・・・・(5)
但し、Sjが発話音声有りのとき、Vj(t)=i
Sjが発話音声無しのとき、Vj(t)=0
Di,j(t) = α・Di,j(t−1)+
(1−α)Vi(t)・Vj(t)
Ri,j(t) = β・Ri,j(t−1)+
(1−β)(1−Vi(t))Vj(t)
Ti,j(t) = γ・Ti,j(t−1)+
(1−γ)Vi(t)・(1−Vj(t))
Si,j(t) = Δ・Si,j(t−1)+
(1−δ)(1−Vi(t))(1−Vj(t))
α = β = γ = 0.99999
δ = 0.999995
ε = 0.999
110L、110R 筐体
120 マイクロホンアレイ
130L、130R スピーカ
140L、140R イヤーチップ
150 リモコン装置
160 CPU
170 メモリ
400 音声処理装置
410 AD変換部
420 自発話検出部
430 方向別音声検出部
435 音声検出部
440 発話量和計算部
450 会話成立度計算部
460 長時間特徴量計算部
470 会話相手判定部
480 出力音制御部
Claims (10)
- 音響信号から複数の話者の発話音声を個別に検出する音声検出部と、
検出された前記発話音声に基づいて、前記複数の話者のうちの2人の組み合わせの全てについて、判定対象時間を区切ったセグメント毎に会話成立度を算出する会話成立度計算部と、
前記組み合わせ毎に、前記判定対象時間における前記会話成立度の長時間特徴量を算出する長時間特徴量計算部と、
算出された前記長時間特徴量に基づいて、前記複数の話者の中から、会話を形成する会話グループを抽出する会話相手判定部と、を有する、
音声処理装置。 - 前記会話成立度は、2人の前記話者のうち一方が発話し他方が発話していない時間の割合の高さを示す値である、
請求項1記載の音声処理装置。 - 前記組み合わせの全てについて、前記セグメント毎に、前記話者の発話量の和である発話量和を算出する発話量和計算部、を更に有し、
前記会話成立度計算部は、
前記発話量和が所定の閾値未満となる前記セグメントの前記会話成立度を、前記長時間特徴量の算出に関して無効化する、
請求項1記載の音声処理装置。 - 前記音響信号は、前記複数の話者の一人であるユーザの近傍に配置され可変の指向性を有する音声入力手段において入力された音声の音響信号であり、
抽出された前記会話グループに前記ユーザが含まれるとき、当該会話グループの前記ユーザ以外の前記話者の方向に指向性が向くように、前記音声入力手段を制御する出力音制御部、を更に有する、
請求項1記載の音声処理装置。 - 前記出力音制御部は、
前記音響信号に対して所定の信号処理を行い、前記所定の信号処理が行われた前記音響信号を、前記ユーザが装着する補聴器のスピーカへ出力する、
請求項4記載の音声処理装置。 - 前記音声検出部は、
前記ユーザを基準とした所定の複数の方向毎に、その方向に位置する話者の発話音声を検出し、
前記出力音制御部は、
抽出された前記会話グループに属する前記ユーザ以外の話者が位置する方向に前記指向性が向くように、前記音声入力手段を制御する、
請求項4記載の音声処理装置。 - 前記会話相手判定部は、前記組み合わせのうちの複数組において前記長時間特徴量がまんべんなく高いとき、当該複数組を構成する複数の前記話者を、同一の会話グループに属すると判定する、
請求項1記載の音声処理装置。 - 前記会話相手判定部は、
前記ユーザを含む前記組み合わせにおいて、最も高い前記長時間特徴量と次に高い前記長時間特徴量との差が所定の閾値以上であるとき、前記最も高い前記長時間特徴量に該当する前記ユーザ以外の話者を、前記ユーザの唯一の会話相手と判定する、
請求項1記載の音声処理装置。 - 前記判定対象時間は、前記ユーザが参加する会話が最後に開始されてから現在までの時間である、
請求項1記載の音声処理装置。 - 音響信号から複数の話者の発話音声を個別に検出するステップと、
検出された前記発話音声に基づいて、前記複数の話者のうちの2人の組み合わせの全てについて、判定対象時間を区切ったセグメント毎に会話成立度を算出するステップと、
前記組み合わせ毎に、前記判定対象時間における前記会話成立度の長時間特徴量を算出するステップと、
算出された前記長時間特徴量に基づいて、前記複数の話者の中から、会話を形成する会話グループを抽出するステップと、を有する、
音声処理方法。
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EP (1) | EP2624252B1 (ja) |
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JP2018098798A (ja) * | 2016-12-15 | 2018-06-21 | シバントス ピーティーイー リミテッド | 補聴器の作動方法 |
US10638239B2 (en) | 2016-12-15 | 2020-04-28 | Sivantos Pte. Ltd. | Method of operating a hearing aid, and hearing aid |
Also Published As
Publication number | Publication date |
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CN103155036B (zh) | 2015-01-14 |
US9064501B2 (en) | 2015-06-23 |
EP2624252A1 (en) | 2013-08-07 |
CN103155036A (zh) | 2013-06-12 |
EP2624252B1 (en) | 2015-03-18 |
WO2012042768A1 (ja) | 2012-04-05 |
US20130144622A1 (en) | 2013-06-06 |
EP2624252A4 (en) | 2014-02-26 |
JP5740575B2 (ja) | 2015-06-24 |
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