JP5136396B2 - ハウリング抑制装置 - Google Patents

ハウリング抑制装置 Download PDF

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Publication number
JP5136396B2
JP5136396B2 JP2008331498A JP2008331498A JP5136396B2 JP 5136396 B2 JP5136396 B2 JP 5136396B2 JP 2008331498 A JP2008331498 A JP 2008331498A JP 2008331498 A JP2008331498 A JP 2008331498A JP 5136396 B2 JP5136396 B2 JP 5136396B2
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JP
Japan
Prior art keywords
signal
filter
band
frequency
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.)
Expired - Fee Related
Application number
JP2008331498A
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English (en)
Japanese (ja)
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JP2010154356A (ja
JP2010154356A5 (cg-RX-API-DMAC10.html
Inventor
啓 奥村
啓文 田中
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 JP2008331498A priority Critical patent/JP5136396B2/ja
Priority to US12/645,203 priority patent/US8218788B2/en
Priority to AT09180288T priority patent/ATE543342T1/de
Priority to EP09180288A priority patent/EP2202997B1/en
Publication of JP2010154356A publication Critical patent/JP2010154356A/ja
Publication of JP2010154356A5 publication Critical patent/JP2010154356A5/ja
Application granted granted Critical
Publication of JP5136396B2 publication Critical patent/JP5136396B2/ja
Expired - Fee Related legal-status Critical Current
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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)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Feedback Control In General (AREA)
JP2008331498A 2008-12-25 2008-12-25 ハウリング抑制装置 Expired - Fee Related JP5136396B2 (ja)

Priority Applications (4)

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
US12/645,203 US8218788B2 (en) 2008-12-25 2009-12-22 Anti-feedback device and anti-feedback method
AT09180288T ATE543342T1 (de) 2008-12-25 2009-12-22 Anti-rückkopplungsvorrichtung und anti- rückkopplungsverfahren
EP09180288A EP2202997B1 (en) 2008-12-25 2009-12-22 Anti-feedback device and anti-feedback method

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 (3)

Publication Number Publication Date
JP2010154356A JP2010154356A (ja) 2010-07-08
JP2010154356A5 JP2010154356A5 (cg-RX-API-DMAC10.html) 2012-02-23
JP5136396B2 true JP5136396B2 (ja) 2013-02-06

Family

ID=42110318

Family Applications (1)

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

Country Status (4)

Country Link
US (1) US8218788B2 (cg-RX-API-DMAC10.html)
EP (1) EP2202997B1 (cg-RX-API-DMAC10.html)
JP (1) JP5136396B2 (cg-RX-API-DMAC10.html)
AT (1) ATE543342T1 (cg-RX-API-DMAC10.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013160945A1 (ja) * 2012-04-25 2013-10-31 三菱電機株式会社 エコー消去装置
US9749021B2 (en) 2012-12-18 2017-08-29 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
ATE534243T1 (de) * 2006-04-01 2011-12-15 Widex As Hörgerät und verfahren zur signalverarbeitungssteuerung in einem hörgerät
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 (en) * 2008-01-22 2010-09-29 Phonak AG Method for determining a maximum gain in a hearing device as well as a hearing device

Also Published As

Publication number Publication date
ATE543342T1 (de) 2012-02-15
JP2010154356A (ja) 2010-07-08
EP2202997A3 (en) 2010-10-20
US8218788B2 (en) 2012-07-10
EP2202997A2 (en) 2010-06-30
EP2202997B1 (en) 2012-01-25
US20100166213A1 (en) 2010-07-01

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