WO2009028023A1 - エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム - Google Patents
エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム Download PDFInfo
- Publication number
- WO2009028023A1 WO2009028023A1 PCT/JP2007/066470 JP2007066470W WO2009028023A1 WO 2009028023 A1 WO2009028023 A1 WO 2009028023A1 JP 2007066470 W JP2007066470 W JP 2007066470W WO 2009028023 A1 WO2009028023 A1 WO 2009028023A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound
- echo
- sound signal
- observed
- echo suppressing
- Prior art date
Links
- 238000004590 computer program Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 230000005236 sound signal Effects 0.000 abstract 12
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
-
- 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
- G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009529874A JP5071480B2 (ja) | 2007-08-24 | 2007-08-24 | エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム |
PCT/JP2007/066470 WO2009028023A1 (ja) | 2007-08-24 | 2007-08-24 | エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム |
DE112007003625T DE112007003625T5 (de) | 2007-08-24 | 2007-08-24 | Echounterdrückungsvorrichtung, echounterdrückungssystem, Echounterdrückungsverfahren und Computerprogramm |
US12/709,729 US8391471B2 (en) | 2007-08-24 | 2010-02-22 | Echo suppressing apparatus, echo suppressing system, echo suppressing method and recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/066470 WO2009028023A1 (ja) | 2007-08-24 | 2007-08-24 | エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/709,729 Continuation US8391471B2 (en) | 2007-08-24 | 2010-02-22 | Echo suppressing apparatus, echo suppressing system, echo suppressing method and recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009028023A1 true WO2009028023A1 (ja) | 2009-03-05 |
Family
ID=40386767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/066470 WO2009028023A1 (ja) | 2007-08-24 | 2007-08-24 | エコー抑制装置、エコー抑制システム、エコー抑制方法及びコンピュータプログラム |
Country Status (4)
Country | Link |
---|---|
US (1) | US8391471B2 (ja) |
JP (1) | JP5071480B2 (ja) |
DE (1) | DE112007003625T5 (ja) |
WO (1) | WO2009028023A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011203700A (ja) * | 2010-03-26 | 2011-10-13 | Toshiba Corp | 音声判別装置 |
WO2013136742A1 (ja) * | 2012-03-14 | 2013-09-19 | パナソニック株式会社 | 車載通話装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4438720B2 (ja) * | 2005-08-17 | 2010-03-24 | ソニー株式会社 | エコーキャンセラ及びマイク装置 |
US8582781B2 (en) * | 2009-01-20 | 2013-11-12 | Koplar Interactive Systems International, L.L.C. | Echo modulation methods and systems |
JP5493817B2 (ja) * | 2009-12-17 | 2014-05-14 | 沖電気工業株式会社 | エコーキャンセラ |
US8655418B2 (en) * | 2012-05-31 | 2014-02-18 | Continental Automotive Systems, Inc | Method and apparatus for a frequency domain echo suppression filter |
US9210270B2 (en) | 2012-11-15 | 2015-12-08 | Qualcomm Incorporated | Echo cancellation for ultrasound |
KR101445186B1 (ko) | 2013-08-27 | 2014-10-01 | (주) 로임시스템 | 비선형 보정 반향 제거장치 |
US10200540B1 (en) | 2017-08-03 | 2019-02-05 | Bose Corporation | Efficient reutilization of acoustic echo canceler channels |
US10542153B2 (en) * | 2017-08-03 | 2020-01-21 | Bose Corporation | Multi-channel residual echo suppression |
US10594869B2 (en) | 2017-08-03 | 2020-03-17 | Bose Corporation | Mitigating impact of double talk for residual echo suppressors |
WO2019070722A1 (en) | 2017-10-03 | 2019-04-11 | Bose Corporation | SPACE DIAGRAM DETECTOR |
US10964305B2 (en) | 2019-05-20 | 2021-03-30 | Bose Corporation | Mitigating impact of double talk for residual echo suppressors |
CN111161748B (zh) * | 2020-02-20 | 2022-09-23 | 百度在线网络技术(北京)有限公司 | 一种双讲状态检测方法、装置以及电子设备 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07226793A (ja) * | 1994-02-10 | 1995-08-22 | Fujitsu Ltd | 信号伝達系の応答の変化を検出する装置 |
JPH10304489A (ja) * | 1997-04-30 | 1998-11-13 | Oki Electric Ind Co Ltd | エコー・雑音成分除去装置 |
JPH11331046A (ja) * | 1998-03-16 | 1999-11-30 | Nippon Telegr & Teleph Corp <Ntt> | エコー抑圧方法及び装置並びにエコー抑圧プログラムが記憶されたコンピュータに読取り可能な記憶媒体 |
JP2002084212A (ja) * | 2000-09-08 | 2002-03-22 | Nippon Telegr & Teleph Corp <Ntt> | 反響抑圧方法、反響抑圧装置及び反響抑圧プログラム記憶媒体 |
JP2002237769A (ja) * | 2001-02-08 | 2002-08-23 | Nippon Telegr & Teleph Corp <Ntt> | 多チャネル反響抑圧方法、その装置、そのプログラム及びその記録媒体 |
JP2003284183A (ja) * | 2002-03-20 | 2003-10-03 | Nippon Telegr & Teleph Corp <Ntt> | 反響抑圧装置、反響抑圧方法及びプログラム |
JP2005250266A (ja) * | 2004-03-05 | 2005-09-15 | Nippon Telegr & Teleph Corp <Ntt> | エコー抑圧方法、この方法を実施する装置、プログラムおよび記録媒体 |
WO2006049260A1 (ja) * | 2004-11-08 | 2006-05-11 | Nec Corporation | 信号処理の方法、信号処理の装置および信号処理用プログラム |
JP2007519316A (ja) * | 2003-12-12 | 2007-07-12 | モトローラ・インコーポレイテッド | エコー・キャンセラ回路のためのダブル・トーク活動度検出器および方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0471083B1 (en) * | 1990-02-16 | 1998-07-08 | Fujitsu Limited | Speaking device having hand-free conversational function |
JP2538176B2 (ja) * | 1993-05-28 | 1996-09-25 | 松下電器産業株式会社 | エコ―制御装置 |
EP0667700B1 (en) * | 1994-02-10 | 2004-01-07 | Nippon Telegraph And Telephone Corporation | Echo cancelling method and apparatus using fast projection scheme |
JP3407455B2 (ja) * | 1995-02-15 | 2003-05-19 | 松下電器産業株式会社 | エコーキャンセラ |
US5668794A (en) * | 1995-09-29 | 1997-09-16 | Crystal Semiconductor | Variable gain echo suppressor |
JP2982718B2 (ja) * | 1996-11-01 | 1999-11-29 | 日本電気株式会社 | 衛星通信装置 |
JP3220979B2 (ja) | 1998-01-09 | 2001-10-22 | 日本電気株式会社 | 音声スイッチ |
US6570986B1 (en) * | 1999-08-30 | 2003-05-27 | Industrial Technology Research Institute | Double-talk detector |
US7139342B1 (en) * | 2000-05-12 | 2006-11-21 | National Semiconductor Corporation | System and method for cancelling signal echoes in a full-duplex transceiver front end |
JP4162860B2 (ja) | 2001-01-12 | 2008-10-08 | アルパイン株式会社 | 不要音信号除去装置 |
WO2002093774A1 (en) * | 2001-05-17 | 2002-11-21 | Stmicroelectronics Asia Pacific Pte Ltd | Echo canceller and a method of cancelling echo |
US6961422B2 (en) * | 2001-12-28 | 2005-11-01 | Avaya Technology Corp. | Gain control method for acoustic echo cancellation and suppression |
US7346012B2 (en) * | 2002-12-13 | 2008-03-18 | Tioga Technologies Ltd. | Transceiver with accelerated echo canceller convergence |
US7386142B2 (en) * | 2004-05-27 | 2008-06-10 | Starkey Laboratories, Inc. | Method and apparatus for a hearing assistance system with adaptive bulk delay |
JP4297055B2 (ja) * | 2005-01-12 | 2009-07-15 | ヤマハ株式会社 | カラオケ装置 |
-
2007
- 2007-08-24 DE DE112007003625T patent/DE112007003625T5/de not_active Ceased
- 2007-08-24 WO PCT/JP2007/066470 patent/WO2009028023A1/ja active Application Filing
- 2007-08-24 JP JP2009529874A patent/JP5071480B2/ja not_active Expired - Fee Related
-
2010
- 2010-02-22 US US12/709,729 patent/US8391471B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07226793A (ja) * | 1994-02-10 | 1995-08-22 | Fujitsu Ltd | 信号伝達系の応答の変化を検出する装置 |
JPH10304489A (ja) * | 1997-04-30 | 1998-11-13 | Oki Electric Ind Co Ltd | エコー・雑音成分除去装置 |
JPH11331046A (ja) * | 1998-03-16 | 1999-11-30 | Nippon Telegr & Teleph Corp <Ntt> | エコー抑圧方法及び装置並びにエコー抑圧プログラムが記憶されたコンピュータに読取り可能な記憶媒体 |
JP2002084212A (ja) * | 2000-09-08 | 2002-03-22 | Nippon Telegr & Teleph Corp <Ntt> | 反響抑圧方法、反響抑圧装置及び反響抑圧プログラム記憶媒体 |
JP2002237769A (ja) * | 2001-02-08 | 2002-08-23 | Nippon Telegr & Teleph Corp <Ntt> | 多チャネル反響抑圧方法、その装置、そのプログラム及びその記録媒体 |
JP2003284183A (ja) * | 2002-03-20 | 2003-10-03 | Nippon Telegr & Teleph Corp <Ntt> | 反響抑圧装置、反響抑圧方法及びプログラム |
JP2007519316A (ja) * | 2003-12-12 | 2007-07-12 | モトローラ・インコーポレイテッド | エコー・キャンセラ回路のためのダブル・トーク活動度検出器および方法 |
JP2005250266A (ja) * | 2004-03-05 | 2005-09-15 | Nippon Telegr & Teleph Corp <Ntt> | エコー抑圧方法、この方法を実施する装置、プログラムおよび記録媒体 |
WO2006049260A1 (ja) * | 2004-11-08 | 2006-05-11 | Nec Corporation | 信号処理の方法、信号処理の装置および信号処理用プログラム |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011203700A (ja) * | 2010-03-26 | 2011-10-13 | Toshiba Corp | 音声判別装置 |
WO2013136742A1 (ja) * | 2012-03-14 | 2013-09-19 | パナソニック株式会社 | 車載通話装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5071480B2 (ja) | 2012-11-14 |
US20100150376A1 (en) | 2010-06-17 |
US8391471B2 (en) | 2013-03-05 |
DE112007003625T5 (de) | 2010-07-15 |
JPWO2009028023A1 (ja) | 2010-11-25 |
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