JP2008005293A - エコー抑圧装置 - Google Patents

エコー抑圧装置 Download PDF

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Publication number
JP2008005293A
JP2008005293A JP2006173750A JP2006173750A JP2008005293A JP 2008005293 A JP2008005293 A JP 2008005293A JP 2006173750 A JP2006173750 A JP 2006173750A JP 2006173750 A JP2006173750 A JP 2006173750A JP 2008005293 A JP2008005293 A JP 2008005293A
Authority
JP
Japan
Prior art keywords
signal
echo
echo suppression
speakers
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006173750A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008005293A5 (enExample
Inventor
Takeshi Ura
威史 浦
Takeo Kanamori
丈郎 金森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2006173750A priority Critical patent/JP2008005293A/ja
Priority to EP07744111A priority patent/EP2037699A1/en
Priority to US12/305,154 priority patent/US20090169027A1/en
Priority to PCT/JP2007/060677 priority patent/WO2007148509A1/ja
Priority to CNA2007800236224A priority patent/CN101480063A/zh
Publication of JP2008005293A publication Critical patent/JP2008005293A/ja
Publication of JP2008005293A5 publication Critical patent/JP2008005293A5/ja
Pending legal-status Critical Current

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/02—Circuits for transducers for preventing acoustic reaction, i.e. acoustic oscillatory feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP2006173750A 2006-06-23 2006-06-23 エコー抑圧装置 Pending JP2008005293A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2006173750A JP2008005293A (ja) 2006-06-23 2006-06-23 エコー抑圧装置
EP07744111A EP2037699A1 (en) 2006-06-23 2007-05-25 Echo suppressor
US12/305,154 US20090169027A1 (en) 2006-06-23 2007-05-25 Echo suppressor
PCT/JP2007/060677 WO2007148509A1 (ja) 2006-06-23 2007-05-25 エコー抑圧装置
CNA2007800236224A CN101480063A (zh) 2006-06-23 2007-05-25 回波抑制装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006173750A JP2008005293A (ja) 2006-06-23 2006-06-23 エコー抑圧装置

Publications (2)

Publication Number Publication Date
JP2008005293A true JP2008005293A (ja) 2008-01-10
JP2008005293A5 JP2008005293A5 (enExample) 2009-05-21

Family

ID=38833252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006173750A Pending JP2008005293A (ja) 2006-06-23 2006-06-23 エコー抑圧装置

Country Status (5)

Country Link
US (1) US20090169027A1 (enExample)
EP (1) EP2037699A1 (enExample)
JP (1) JP2008005293A (enExample)
CN (1) CN101480063A (enExample)
WO (1) WO2007148509A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009212945A (ja) * 2008-03-05 2009-09-17 Mitsubishi Electric Corp エコー消去装置
JP2013005106A (ja) * 2011-06-14 2013-01-07 Nippon Telegr & Teleph Corp <Ntt> 場内拡声装置、場内拡声方法、及びそのプログラム
JP2016054418A (ja) * 2014-09-03 2016-04-14 富士通株式会社 通信装置

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4852068B2 (ja) * 2008-05-20 2012-01-11 日本電信電話株式会社 ステレオ音響エコーキャンセル方法、ステレオ音響エコーキャンセル装置、ステレオ音響エコーキャンセルプログラム、その記録媒体
US8130941B2 (en) * 2008-06-11 2012-03-06 Mitsubishi Electric Corporation Echo canceler
US9357080B2 (en) * 2013-06-04 2016-05-31 Broadcom Corporation Spatial quiescence protection for multi-channel acoustic echo cancellation
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
EP3804356A1 (en) 2018-06-01 2021-04-14 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
US11310596B2 (en) 2018-09-20 2022-04-19 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
TWI865506B (zh) 2019-03-21 2024-12-11 美商舒爾獲得控股公司 具有抑制功能的波束形成麥克風瓣之自動對焦、區域內自動對焦、及自動配置
EP3942842B1 (en) 2019-03-21 2026-03-11 Shure Acquisition Holdings, Inc. Housings and associated design features for ceiling array microphones
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
CN114051738B (zh) 2019-05-23 2024-10-01 舒尔获得控股公司 可操纵扬声器阵列、系统及其方法
CN114051637B (zh) 2019-05-31 2025-10-28 舒尔获得控股公司 集成语音及噪声活动检测的低延时自动混波器
WO2021041275A1 (en) 2019-08-23 2021-03-04 Shore Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
WO2021087377A1 (en) 2019-11-01 2021-05-06 Shure Acquisition Holdings, Inc. Proximity microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
USD944776S1 (en) 2020-05-05 2022-03-01 Shure Acquisition Holdings, Inc. Audio device
WO2021243368A2 (en) 2020-05-29 2021-12-02 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
JP7814400B2 (ja) 2021-01-28 2026-02-16 シュアー アクイジッション ホールディングス インコーポレイテッド ハイブリッドオーディオビーム形成システム
US12452584B2 (en) 2021-01-29 2025-10-21 Shure Acquisition Holdings, Inc. Scalable conferencing systems and methods
US12542123B2 (en) 2021-08-31 2026-02-03 Shure Acquisition Holdings, Inc. Mask non-linear processor for acoustic echo cancellation
US12289584B2 (en) 2021-10-04 2025-04-29 Shure Acquisition Holdings, Inc. Networked automixer systems and methods
US12525083B2 (en) 2021-11-05 2026-01-13 Shure Acquisition Holdings, Inc. Distributed algorithm for automixing speech over wireless networks
US12250526B2 (en) 2022-01-07 2025-03-11 Shure Acquisition Holdings, Inc. Audio beamforming with nulling control system and methods
US12598261B2 (en) 2022-09-28 2026-04-07 Shure Acquisition Holdings, Inc. Wideband doubletalk detection for optimization of acoustic echo cancellation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09312597A (ja) * 1995-09-26 1997-12-02 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音声通信会議用反響消去方法及び装置
JP2001095084A (ja) * 1999-09-22 2001-04-06 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音響結合利得低減装置
JP2003102085A (ja) * 2001-07-11 2003-04-04 Yamaha Corp 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置
JP2004349806A (ja) * 2003-05-20 2004-12-09 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音響エコー消去方法、その装置、そのプログラム及びその記録媒体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5761318A (en) * 1995-09-26 1998-06-02 Nippon Telegraph And Telephone Corporation Method and apparatus for multi-channel acoustic echo cancellation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09312597A (ja) * 1995-09-26 1997-12-02 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音声通信会議用反響消去方法及び装置
JP2001095084A (ja) * 1999-09-22 2001-04-06 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音響結合利得低減装置
JP2003102085A (ja) * 2001-07-11 2003-04-04 Yamaha Corp 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置
JP2004349806A (ja) * 2003-05-20 2004-12-09 Nippon Telegr & Teleph Corp <Ntt> 多チャネル音響エコー消去方法、その装置、そのプログラム及びその記録媒体

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009212945A (ja) * 2008-03-05 2009-09-17 Mitsubishi Electric Corp エコー消去装置
JP2013005106A (ja) * 2011-06-14 2013-01-07 Nippon Telegr & Teleph Corp <Ntt> 場内拡声装置、場内拡声方法、及びそのプログラム
JP2016054418A (ja) * 2014-09-03 2016-04-14 富士通株式会社 通信装置

Also Published As

Publication number Publication date
EP2037699A1 (en) 2009-03-18
WO2007148509A1 (ja) 2007-12-27
CN101480063A (zh) 2009-07-08
US20090169027A1 (en) 2009-07-02

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