ATE543342T1 - Anti-rückkopplungsvorrichtung und anti- rückkopplungsverfahren - Google Patents

Anti-rückkopplungsvorrichtung und anti- rückkopplungsverfahren

Info

Publication number
ATE543342T1
ATE543342T1 AT09180288T AT09180288T ATE543342T1 AT E543342 T1 ATE543342 T1 AT E543342T1 AT 09180288 T AT09180288 T AT 09180288T AT 09180288 T AT09180288 T AT 09180288T AT E543342 T1 ATE543342 T1 AT E543342T1
Authority
AT
Austria
Prior art keywords
filter
feedback
signal
specific band
closed loop
Prior art date
Application number
AT09180288T
Other languages
English (en)
Inventor
Hiraku Okumura
Hirobumi Tanaka
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
Application granted granted Critical
Publication of ATE543342T1 publication Critical patent/ATE543342T1/de

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Feedback Control In General (AREA)
AT09180288T 2008-12-25 2009-12-22 Anti-rückkopplungsvorrichtung und anti- rückkopplungsverfahren ATE543342T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008331498A JP5136396B2 (ja) 2008-12-25 2008-12-25 ハウリング抑制装置

Publications (1)

Publication Number Publication Date
ATE543342T1 true ATE543342T1 (de) 2012-02-15

Family

ID=42110318

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09180288T ATE543342T1 (de) 2008-12-25 2009-12-22 Anti-rückkopplungsvorrichtung und anti- rückkopplungsverfahren

Country Status (4)

Country Link
US (1) US8218788B2 (de)
EP (1) EP2202997B1 (de)
JP (1) JP5136396B2 (de)
AT (1) ATE543342T1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5631523B2 (ja) 2012-04-25 2014-11-26 三菱電機株式会社 エコー消去装置
WO2014094242A1 (en) 2012-12-18 2014-06-26 Motorola Solutions, Inc. Method and apparatus for mitigating feedback in a digital radio receiver
JP2015015561A (ja) * 2013-07-04 2015-01-22 ヤマハ株式会社 ハウリング抑制装置
JP2018110362A (ja) * 2017-01-06 2018-07-12 ローム株式会社 オーディオ信号処理回路、それを用いた車載オーディオシステム、オーディオコンポーネント装置、電子機器、オーディオ信号処理方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0667025B2 (ja) * 1984-04-09 1994-08-24 松下電器産業株式会社 ハウリング抑圧装置
DE3431141A1 (de) * 1984-08-24 1986-03-06 Siemens Ag Transversalfilter-echokompensator fuer lange akustische echos
US5263019A (en) * 1991-01-04 1993-11-16 Picturetel Corporation Method and apparatus for estimating the level of acoustic feedback between a loudspeaker and microphone
JPH05137191A (ja) * 1991-11-11 1993-06-01 Matsushita Electric Ind Co Ltd ハウリング抑制装置
DK169958B1 (da) * 1992-10-20 1995-04-10 Gn Danavox As Høreapparat med kompensation for akustisk tilbagekobling
JP3235925B2 (ja) * 1993-11-19 2001-12-04 松下電器産業株式会社 ハウリング抑制装置
JP3391144B2 (ja) * 1995-05-11 2003-03-31 株式会社日立製作所 帯域分割型エコーキャンセラー
US6301357B1 (en) * 1996-12-31 2001-10-09 Ericsson Inc. AC-center clipper for noise and echo suppression in a communications system
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
DE10245667B4 (de) * 2002-09-30 2004-12-30 Siemens Audiologische Technik Gmbh Rückkopplungkompensator in einem akustischen Verstärkungssystem, Hörhilfsgerät, Verfahren zur Rückkopplungskompensation und Anwendung des Verfahrens in einem Hörhilfsgerät
US7609841B2 (en) * 2003-08-04 2009-10-27 House Ear Institute Frequency shifter for use in adaptive feedback cancellers for hearing aids
US7324651B2 (en) * 2004-03-15 2008-01-29 Phonak Ag Feedback suppression
JP4186932B2 (ja) 2005-02-07 2008-11-26 ヤマハ株式会社 ハウリング抑制装置および拡声装置
JP2006262098A (ja) * 2005-03-17 2006-09-28 Yamaha Corp ハウリングキャンセラ
DK2002691T3 (da) 2006-04-01 2012-01-23 Widex As Høreapparat og fremgangsmåde til at styre signalbehandling i et høreapparat
US7365669B1 (en) 2007-03-28 2008-04-29 Cirrus Logic, Inc. Low-delay signal processing based on highly oversampled digital processing
JP2008306446A (ja) * 2007-06-07 2008-12-18 Sony Corp 音声信号処理装置、音声信号処理方法
EP2232890A2 (de) * 2008-01-22 2010-09-29 Phonak AG Verfahren zur bestimmung eines maximalen verstärkungsfaktors in einem hörgerät und hörgerät

Also Published As

Publication number Publication date
EP2202997A3 (de) 2010-10-20
US8218788B2 (en) 2012-07-10
JP2010154356A (ja) 2010-07-08
US20100166213A1 (en) 2010-07-01
EP2202997A2 (de) 2010-06-30
EP2202997B1 (de) 2012-01-25
JP5136396B2 (ja) 2013-02-06

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