ATE394017T1 - Audiosystem mit vorkehrungen zum filterkoeffizienten kopieren - Google Patents

Audiosystem mit vorkehrungen zum filterkoeffizienten kopieren

Info

Publication number
ATE394017T1
ATE394017T1 AT04806588T AT04806588T ATE394017T1 AT E394017 T1 ATE394017 T1 AT E394017T1 AT 04806588 T AT04806588 T AT 04806588T AT 04806588 T AT04806588 T AT 04806588T AT E394017 T1 ATE394017 T1 AT E394017T1
Authority
AT
Austria
Prior art keywords
filter
audio
filter coefficient
arrangement
provisions
Prior art date
Application number
AT04806588T
Other languages
English (en)
Inventor
David Roovers
Bahaa Sarroukh
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE394017T1 publication Critical patent/ATE394017T1/de

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
    • 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
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Filtering Materials (AREA)
  • Networks Using Active Elements (AREA)
AT04806588T 2004-01-07 2004-12-20 Audiosystem mit vorkehrungen zum filterkoeffizienten kopieren ATE394017T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04100022 2004-01-07

Publications (1)

Publication Number Publication Date
ATE394017T1 true ATE394017T1 (de) 2008-05-15

Family

ID=34833704

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04806588T ATE394017T1 (de) 2004-01-07 2004-12-20 Audiosystem mit vorkehrungen zum filterkoeffizienten kopieren

Country Status (7)

Country Link
US (1) US7764799B2 (de)
EP (1) EP1704748B1 (de)
JP (1) JP4754497B2 (de)
CN (1) CN1902980B (de)
AT (1) ATE394017T1 (de)
DE (1) DE602004013465T2 (de)
WO (1) WO2005076662A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4946090B2 (ja) * 2006-02-21 2012-06-06 ヤマハ株式会社 収音放音一体型装置
JP2007318274A (ja) * 2006-05-24 2007-12-06 Yamaha Corp 放収音装置
JP2008288785A (ja) * 2007-05-16 2008-11-27 Yamaha Corp テレビ会議装置
EP2171714B1 (de) 2007-06-21 2012-08-15 Koninklijke Philips Electronics N.V. Vorrichtung und verfahren zur verarbeitung von audio-signalen
DK2439958T3 (da) * 2010-10-06 2013-08-12 Oticon As Fremgangsmåde til bestemmelse af parametre i en adaptiv lydbehandlings-algoritme og et lydbehandlingssystem
EP2444967A1 (de) * 2010-10-25 2012-04-25 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Echounterdrückung mit Modellierung verzögerter Nachhallkomponenten
WO2013114425A1 (ja) * 2012-01-30 2013-08-08 三菱電機株式会社 残響抑圧装置
US9812150B2 (en) 2013-08-28 2017-11-07 Accusonus, Inc. Methods and systems for improved signal decomposition
US10468036B2 (en) * 2014-04-30 2019-11-05 Accusonus, Inc. Methods and systems for processing and mixing signals using signal decomposition
JP6349899B2 (ja) * 2014-04-14 2018-07-04 ヤマハ株式会社 放収音装置
CN106448691B (zh) * 2015-08-10 2020-12-11 深圳市潮流网络技术有限公司 一种用于扩音通信系统的语音增强方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8826463D0 (en) * 1988-11-11 1988-12-14 Rca Licensing Corp Technique for actv side-panel noise reduction
US6760451B1 (en) * 1993-08-03 2004-07-06 Peter Graham Craven Compensating filters
JP2861888B2 (ja) * 1995-10-17 1999-02-24 日本電気株式会社 エコー・ノイズキャンセラおよびエコー・ノイズ消去方法
BR9702254B1 (pt) * 1996-05-31 2009-12-01 sistema para suprimir um componente interferente em um sinal de entrada e telefone com viva voz.
US5796819A (en) * 1996-07-24 1998-08-18 Ericsson Inc. Echo canceller for non-linear circuits
JP3541339B2 (ja) * 1997-06-26 2004-07-07 富士通株式会社 マイクロホンアレイ装置
JP2003535510A (ja) * 2000-05-26 2003-11-25 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 適応ビームフォーミングと結合される音声エコーキャンセレーションのための方法と装置
JP3673727B2 (ja) * 2000-11-22 2005-07-20 日本電信電話株式会社 反響消去方法、その装置、そのプログラム及びその記録媒体
WO2002095975A1 (en) * 2001-05-22 2002-11-28 Mitsubishi Denki Kabushiki Kaisha Echo processing apparatus
EP1413168A2 (de) * 2001-07-20 2004-04-28 Koninklijke Philips Electronics N.V. Schallverstärkungsystem mit echounterdrücker und lautsprecherstrahlformer
JP3727258B2 (ja) * 2001-08-13 2005-12-14 富士通株式会社 エコー抑制処理システム
US7003099B1 (en) * 2002-11-15 2006-02-21 Fortmedia, Inc. Small array microphone for acoustic echo cancellation and noise suppression

Also Published As

Publication number Publication date
DE602004013465D1 (de) 2008-06-12
DE602004013465T2 (de) 2008-10-16
CN1902980B (zh) 2010-11-17
EP1704748A1 (de) 2006-09-27
JP2007518334A (ja) 2007-07-05
EP1704748B1 (de) 2008-04-30
CN1902980A (zh) 2007-01-24
JP4754497B2 (ja) 2011-08-24
US20090003615A1 (en) 2009-01-01
US7764799B2 (en) 2010-07-27
WO2005076662A1 (en) 2005-08-18

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