WO2009041446A1 - エコー除去装置 - Google Patents

エコー除去装置 Download PDF

Info

Publication number
WO2009041446A1
WO2009041446A1 PCT/JP2008/067207 JP2008067207W WO2009041446A1 WO 2009041446 A1 WO2009041446 A1 WO 2009041446A1 JP 2008067207 W JP2008067207 W JP 2008067207W WO 2009041446 A1 WO2009041446 A1 WO 2009041446A1
Authority
WO
WIPO (PCT)
Prior art keywords
echo
removal device
volume value
operated
suppresser
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.)
Ceased
Application number
PCT/JP2008/067207
Other languages
English (en)
French (fr)
Inventor
Yukio Tada
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.)
Yamaha Corp
Original Assignee
Yamaha Corp
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 Yamaha Corp filed Critical Yamaha Corp
Priority to US12/677,200 priority Critical patent/US8630405B2/en
Priority to EP08832817A priority patent/EP2202892B1/en
Priority to CN2008801062760A priority patent/CN101803219B/zh
Publication of WO2009041446A1 publication Critical patent/WO2009041446A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)

Abstract

　簡易な構成でありながら、放音音量が大きくなっても適切にエコーを除去することができるエコー除去装置を提供する。制御部１７は、音量操作部１８から入力されるボリューム値に応じて、エコーサプレッサ１４とエコーキャンセラ１５の動作を切り替える。ボリューム値が大きい場合にはエコーサプレッサ１４を動作させ、確実にエコーを抑制する。ボリューム値が小さい場合にはエコーキャンセラ１５を動作させ、ダブルトークを可能とする。
PCT/JP2008/067207 2007-09-28 2008-09-24 エコー除去装置 Ceased WO2009041446A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/677,200 US8630405B2 (en) 2007-09-28 2008-09-24 Echo removing apparatus
EP08832817A EP2202892B1 (en) 2007-09-28 2008-09-24 Echo removal device
CN2008801062760A CN101803219B (zh) 2007-09-28 2008-09-24 回声消除设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-253906 2007-09-28
JP2007253906A JP5076783B2 (ja) 2007-09-28 2007-09-28 エコー除去装置

Publications (1)

Publication Number Publication Date
WO2009041446A1 true WO2009041446A1 (ja) 2009-04-02

Family

ID=40511329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067207 Ceased WO2009041446A1 (ja) 2007-09-28 2008-09-24 エコー除去装置

Country Status (5)

Country Link
US (1) US8630405B2 (ja)
EP (1) EP2202892B1 (ja)
JP (1) JP5076783B2 (ja)
CN (1) CN101803219B (ja)
WO (1) WO2009041446A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112037810A (zh) * 2020-09-25 2020-12-04 杭州朗和科技有限公司 一种回音处理方法、装置、介质和计算设备

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5297396B2 (ja) * 2010-01-21 2013-09-25 パナソニック株式会社 拡声通話装置
US9042535B2 (en) * 2010-09-29 2015-05-26 Cisco Technology, Inc. Echo control optimization
JP2012134923A (ja) * 2010-12-24 2012-07-12 Sony Corp 音声処理装置および方法、並びにプログラム
US9432219B2 (en) * 2012-09-10 2016-08-30 Verizon Patent And Licensing Inc. Voice energy collision back-off
JP6427884B2 (ja) * 2014-01-28 2018-11-28 株式会社リコー 情報処理装置、プログラム、および情報処理システム
US10034092B1 (en) 2016-09-22 2018-07-24 Apple Inc. Spatial headphone transparency
EP3692703B9 (en) * 2017-10-04 2021-11-17 proactivaudio GmbH Echo canceller and method therefor
EP3667662B1 (en) * 2018-12-12 2022-08-10 Panasonic Intellectual Property Corporation of America Acoustic echo cancellation device, acoustic echo cancellation method and acoustic echo cancellation program
CN109545176B (zh) * 2019-01-21 2022-03-04 北京小唱科技有限公司 用于音频的动态回声处理方法及装置
US11166099B2 (en) 2019-09-27 2021-11-02 Apple Inc. Headphone acoustic noise cancellation and speaker protection or dynamic user experience processing
US11361745B2 (en) 2019-09-27 2022-06-14 Apple Inc. Headphone acoustic noise cancellation and speaker protection
US11206004B1 (en) * 2020-09-16 2021-12-21 Apple Inc. Automatic equalization for consistent headphone playback
US11688383B2 (en) 2021-08-27 2023-06-27 Apple Inc. Context aware compressor for headphone audio feedback path
CN117198280A (zh) * 2022-05-30 2023-12-08 佛山市顺德区美的电子科技有限公司 参数调节方法、装置、语音系统、空调器及存储介质
US12548544B1 (en) 2022-09-06 2026-02-10 Apple Inc. Feedforward and feedback headphone acoustic noise cancellation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001054296A1 (fr) * 2000-01-19 2001-07-26 Mitsubishi Denki Kabushiki Kaisha Dispositif de communication de sons et processeur d'echo
JP2001268213A (ja) * 2000-03-15 2001-09-28 Denso Corp 音声通信装置
JP2006333215A (ja) * 2005-05-27 2006-12-07 Toshiba Corp ボイススイッチ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2933035B2 (ja) 1996-11-26 1999-08-09 日本電気株式会社 エコーキャンセラ装置
JPH10229354A (ja) 1997-02-14 1998-08-25 Fujitsu Ltd エコー制御装置
JP2000101485A (ja) * 1998-09-18 2000-04-07 Toshiba Corp エコーキャンセラ付き音声通信装置
CN1780165B (zh) * 2004-11-23 2011-07-27 华为技术有限公司 一种回声消除装置和方法
JP2007097050A (ja) * 2005-09-30 2007-04-12 Saxa Inc エコー抑制回路および電話装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001054296A1 (fr) * 2000-01-19 2001-07-26 Mitsubishi Denki Kabushiki Kaisha Dispositif de communication de sons et processeur d'echo
JP2001268213A (ja) * 2000-03-15 2001-09-28 Denso Corp 音声通信装置
JP2006333215A (ja) * 2005-05-27 2006-12-07 Toshiba Corp ボイススイッチ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2202892A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112037810A (zh) * 2020-09-25 2020-12-04 杭州朗和科技有限公司 一种回音处理方法、装置、介质和计算设备
CN112037810B (zh) * 2020-09-25 2023-10-03 杭州网易智企科技有限公司 一种回音处理方法、装置、介质和计算设备

Also Published As

Publication number Publication date
US8630405B2 (en) 2014-01-14
CN101803219A (zh) 2010-08-11
EP2202892B1 (en) 2012-07-25
EP2202892A4 (en) 2010-11-10
JP5076783B2 (ja) 2012-11-21
EP2202892A1 (en) 2010-06-30
CN101803219B (zh) 2013-08-07
US20100195815A1 (en) 2010-08-05
JP2009088814A (ja) 2009-04-23

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