JP2011526114A - オーディオ処理 - Google Patents
オーディオ処理 Download PDFInfo
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- JP2011526114A JP2011526114A JP2011515683A JP2011515683A JP2011526114A JP 2011526114 A JP2011526114 A JP 2011526114A JP 2011515683 A JP2011515683 A JP 2011515683A JP 2011515683 A JP2011515683 A JP 2011515683A JP 2011526114 A JP2011526114 A JP 2011526114A
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- 238000012545 processing Methods 0.000 title claims abstract description 74
- 230000005236 sound signal Effects 0.000 claims abstract description 140
- 238000007781 pre-processing Methods 0.000 claims abstract description 19
- 239000011159 matrix material Substances 0.000 claims description 57
- 230000006870 function Effects 0.000 claims description 29
- 230000002596 correlated effect Effects 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 12
- 230000000875 corresponding effect Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 description 14
- 238000007493 shaping process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 108010074506 Transfer Factor Proteins 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005534 acoustic noise Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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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
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- 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
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02166—Microphone arrays; Beamforming
-
- 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
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Neurosurgery (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
Abstract
Description
Claims (13)
- オーディオ処理装置であって、
前記入力オーディオ信号から前処理済みオーディオ信号を求め、入力オーディオ信号に含まれる干渉の相互相関を最小化する前処理回路と、
前記前処理済み入力オーディオ信号から処理済みオーディオ信号を求める処理回路と、
前記処理済みオーディオ信号から合成オーディオ信号を求める合成回路と、
前記処理回路を制御して、前記合成オーディオ信号のパワー指標を最大化し、前記処理済みオーディオ信号のゲインの関数を所定値に制限する制御回路と、を有するオーディオ処理装置。 - 前記前処理回路は、入力オーディオ信号にレギュレーション行列の逆号列をかける乗算回路により、前記干渉の相互相関を最小化するよう構成され、
前記レギュレーション行列は相関行列の関数であり、
前記相関行列のエントリは複数の音源のペア間の相関指標である、
請求項1に記載のオーディオ処理装置。 - 前記レギュレーション行列は前記相関行列である、
請求項2に記載のオーディオ処理装置。 - 前記パラメータηは所定の定数値である、
請求項4に記載のオーディオ処理装置。 - 前記処理回路は前記前処理済みオーディオ信号から前記処理済みオーディオ信号を求める複数の調整可能フィルタを有し、
前記制御回路は前記合成オーディオ信号から、フィルタ済み合成オーディオ信号を求める複数の別の調整可能フィルタを有し、
前記別の調整可能フィルタの伝達関数は前記調整可能フィルタの伝達関数の複素共役であり、
前記入力オーディオ信号と、前記入力オーディオ信号に対応する前記フィルタ済み合成オーディオ信号との間の差異指標を最小化するために、前記調整可能フィルタと前記別の調整可能フィルタとの前記伝達関数を制御することにより、前記制御回路は前記処理済みオーディオ信号のゲインの関数を前記所定値に制限するように構成された、
請求項1に記載のオーディオ処理装置。 - 前記オーディオ処理装置は前記入力オーディオ信号に含まれる共通オーディオ信号の遅延差を補正する遅延要素を有する、
請求項1に記載のオーディオ処理装置。 - オーディオ信号処理装置であって、
入力オーディオ信号を発生する複数の音源と、
請求項1に記載のオーディオ処理装置とを有する、オーディオ処理装置。 - 複数の音源から複数の入力オーディオ信号を受け取る段階と、
前記入力オーディオ信号から前処理済みオーディオ信号を求め、前記入力オーディオ信号に含まれる干渉の相互相関を最小化する段階と、
前記前処理済みオーディオ信号から処理済みオーディオ信号を求める段階と、
前記処理済みオーディオ信号から合成オーディオ信号を求める段階と、
前記合成オーディオ信号のパワー指標を最大化するために、前記処理済みオーディオ信号を求める段階を制御する段階と、
前記処理を前記処理済みオーディオ信号のゲインの関数を所定値に制限するように制御する段階とを有する、
オーディオ処理方法。 - 請求項11に記載のオーディオ処理装置を有する補聴器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08158970 | 2008-06-25 | ||
EP08158970.7 | 2008-06-25 | ||
PCT/IB2009/052580 WO2009156906A1 (en) | 2008-06-25 | 2009-06-17 | Audio processing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011526114A true JP2011526114A (ja) | 2011-09-29 |
JP5331201B2 JP5331201B2 (ja) | 2013-10-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011515683A Active JP5331201B2 (ja) | 2008-06-25 | 2009-06-17 | オーディオ処理 |
Country Status (7)
Country | Link |
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US (1) | US8472655B2 (ja) |
EP (1) | EP2308044B1 (ja) |
JP (1) | JP5331201B2 (ja) |
KR (1) | KR101572793B1 (ja) |
CN (1) | CN102077277B (ja) |
AT (1) | ATE528752T1 (ja) |
WO (1) | WO2009156906A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5508550B2 (ja) | 2010-02-24 | 2014-06-04 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 拡張ダウンミックス信号を発生するための装置、拡張ダウンミックス信号を発生するための方法及びコンピュータプログラム |
WO2011129725A1 (en) * | 2010-04-12 | 2011-10-20 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for noise cancellation in a speech encoder |
WO2012107561A1 (en) * | 2011-02-10 | 2012-08-16 | Dolby International Ab | Spatial adaptation in multi-microphone sound capture |
US9560456B2 (en) | 2011-04-11 | 2017-01-31 | Panasonic Intellectual Property Management Co., Ltd. | Hearing aid and method of detecting vibration |
DE102011116282B4 (de) * | 2011-10-19 | 2013-07-04 | Krohne Messtechnik Gmbh | Verfahren zum Betrieb eines Vortexdurchflussmessgeräts |
AU2013260672B2 (en) * | 2011-11-14 | 2014-01-16 | Google Inc. | Automatic gain control |
US8185387B1 (en) | 2011-11-14 | 2012-05-22 | Google Inc. | Automatic gain control |
CN103841521A (zh) * | 2012-11-22 | 2014-06-04 | 苏州朗捷通智能科技有限公司 | 一种基于2.4g的无线数字会议系统 |
US9774960B2 (en) * | 2014-12-22 | 2017-09-26 | Gn Hearing A/S | Diffuse noise listening |
EP3890347A1 (en) * | 2015-09-10 | 2021-10-06 | Yayuma Audio SP. Z.O.O. | A method of an audio signal correction |
US10244317B2 (en) | 2015-09-22 | 2019-03-26 | Samsung Electronics Co., Ltd. | Beamforming array utilizing ring radiator loudspeakers and digital signal processing (DSP) optimization of a beamforming array |
US9807530B1 (en) | 2016-09-16 | 2017-10-31 | Gopro, Inc. | Generating an audio signal from multiple microphones based on uncorrelated noise detection |
RU2760097C2 (ru) * | 2017-01-03 | 2021-11-22 | Конинклейке Филипс Н.В. | Способ и устройство для захвата аудиоинформации с использованием формирования диаграммы направленности |
RU2759715C2 (ru) * | 2017-01-03 | 2021-11-17 | Конинклейке Филипс Н.В. | Звукозапись с использованием формирования диаграммы направленности |
CN110267160B (zh) * | 2019-05-31 | 2020-09-22 | 潍坊歌尔电子有限公司 | 声音信号处理方法、装置及设备 |
GB202008547D0 (en) * | 2020-06-05 | 2020-07-22 | Audioscenic Ltd | Loudspeaker control |
KR20220041432A (ko) * | 2020-09-25 | 2022-04-01 | 삼성전자주식회사 | 음향 신호를 이용한 거리 측정 시스템 및 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001510001A (ja) * | 1997-11-22 | 2001-07-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数ソースを伴うオーディオ処理装置 |
JP2003098003A (ja) * | 2001-09-20 | 2003-04-03 | Nippon Hoso Kyokai <Nhk> | 音源分離収音マイクロホン装置および方法 |
JP2004289762A (ja) * | 2003-01-29 | 2004-10-14 | Toshiba Corp | 音声信号処理方法と装置及びプログラム |
JP2004312754A (ja) * | 2003-04-03 | 2004-11-04 | Gn Resound As | 両耳信号増強システム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7039200B2 (en) * | 2003-03-31 | 2006-05-02 | Microsoft Corporation | System and process for time delay estimation in the presence of correlated noise and reverberation |
US8150683B2 (en) * | 2003-11-04 | 2012-04-03 | Stmicroelectronics Asia Pacific Pte., Ltd. | Apparatus, method, and computer program for comparing audio signals |
DE602004015987D1 (de) * | 2004-09-23 | 2008-10-02 | Harman Becker Automotive Sys | Mehrkanalige adaptive Sprachsignalverarbeitung mit Rauschunterdrückung |
US7869606B2 (en) * | 2006-03-29 | 2011-01-11 | Phonak Ag | Automatically modifiable hearing aid |
US8078456B2 (en) * | 2007-06-06 | 2011-12-13 | Broadcom Corporation | Audio time scale modification algorithm for dynamic playback speed control |
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2009
- 2009-06-17 KR KR1020117001574A patent/KR101572793B1/ko active IP Right Grant
- 2009-06-17 AT AT09769715T patent/ATE528752T1/de not_active IP Right Cessation
- 2009-06-17 US US12/997,889 patent/US8472655B2/en active Active
- 2009-06-17 JP JP2011515683A patent/JP5331201B2/ja active Active
- 2009-06-17 EP EP09769715A patent/EP2308044B1/en active Active
- 2009-06-17 WO PCT/IB2009/052580 patent/WO2009156906A1/en active Application Filing
- 2009-06-17 CN CN2009801240387A patent/CN102077277B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001510001A (ja) * | 1997-11-22 | 2001-07-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数ソースを伴うオーディオ処理装置 |
JP2003098003A (ja) * | 2001-09-20 | 2003-04-03 | Nippon Hoso Kyokai <Nhk> | 音源分離収音マイクロホン装置および方法 |
JP2004289762A (ja) * | 2003-01-29 | 2004-10-14 | Toshiba Corp | 音声信号処理方法と装置及びプログラム |
JP2004312754A (ja) * | 2003-04-03 | 2004-11-04 | Gn Resound As | 両耳信号増強システム |
Also Published As
Publication number | Publication date |
---|---|
KR101572793B1 (ko) | 2015-12-01 |
CN102077277B (zh) | 2013-06-12 |
EP2308044B1 (en) | 2011-10-12 |
EP2308044A1 (en) | 2011-04-13 |
US8472655B2 (en) | 2013-06-25 |
JP5331201B2 (ja) | 2013-10-30 |
US20110103625A1 (en) | 2011-05-05 |
WO2009156906A1 (en) | 2009-12-30 |
KR20110040855A (ko) | 2011-04-20 |
ATE528752T1 (de) | 2011-10-15 |
CN102077277A (zh) | 2011-05-25 |
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