DE69118486T2 - Verfahren und einrichtung zur adaptiven filterung einer audioresonanzfrequenz - Google Patents

Verfahren und einrichtung zur adaptiven filterung einer audioresonanzfrequenz

Info

Publication number
DE69118486T2
DE69118486T2 DE69118486T DE69118486T DE69118486T2 DE 69118486 T2 DE69118486 T2 DE 69118486T2 DE 69118486 T DE69118486 T DE 69118486T DE 69118486 T DE69118486 T DE 69118486T DE 69118486 T2 DE69118486 T2 DE 69118486T2
Authority
DE
Germany
Prior art keywords
audioresonance
frequency
adaptively filtering
adaptively
filtering
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
DE69118486T
Other languages
English (en)
Other versions
DE69118486D1 (de
Inventor
Doran Oster
Michael Lewis
Timothy Tucker
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.)
Sabine Musical Manufacturing Co Inc
Original Assignee
Sabine Musical Manufacturing Co Inc
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 Sabine Musical Manufacturing Co Inc filed Critical Sabine Musical Manufacturing Co Inc
Application granted granted Critical
Publication of DE69118486D1 publication Critical patent/DE69118486D1/de
Publication of DE69118486T2 publication Critical patent/DE69118486T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
DE69118486T 1990-06-13 1991-06-12 Verfahren und einrichtung zur adaptiven filterung einer audioresonanzfrequenz Expired - Fee Related DE69118486T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53777490A 1990-06-13 1990-06-13
US07/713,983 US5245665A (en) 1990-06-13 1991-06-12 Method and apparatus for adaptive audio resonant frequency filtering
PCT/US1991/004042 WO1991020134A1 (en) 1990-06-13 1991-06-12 Method and apparatus for adaptive audio resonant frequency filtering

Publications (2)

Publication Number Publication Date
DE69118486D1 DE69118486D1 (de) 1996-05-09
DE69118486T2 true DE69118486T2 (de) 1996-12-19

Family

ID=27065609

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69118486T Expired - Fee Related DE69118486T2 (de) 1990-06-13 1991-06-12 Verfahren und einrichtung zur adaptiven filterung einer audioresonanzfrequenz

Country Status (6)

Country Link
US (1) US5245665A (de)
EP (1) EP0486679B1 (de)
AU (1) AU653736B2 (de)
CA (1) CA2066624C (de)
DE (1) DE69118486T2 (de)
WO (1) WO1991020134A1 (de)

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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
US5717772A (en) * 1995-08-07 1998-02-10 Motorola, Inc. Method and apparatus for suppressing acoustic feedback in an audio system
US5920633A (en) * 1996-02-12 1999-07-06 Yang; Yi-Fu Thin-wall multi-concentric cylinder speaker enclosure with audio amplifier tunable to listening room
GB2310104A (en) * 1996-02-12 1997-08-13 Yang Yi Fu Loud speaker enclosure and tunable audio reproduction apparatus
US5999631A (en) * 1996-07-26 1999-12-07 Shure Brothers Incorporated Acoustic feedback elimination using adaptive notch filter algorithm
US5821889A (en) * 1996-11-06 1998-10-13 Sabine, Inc. Automatic clip level adjustment for digital processing
US6535609B1 (en) 1997-06-03 2003-03-18 Lear Automotive Dearborn, Inc. Cabin communication system
US6271780B1 (en) * 1998-10-08 2001-08-07 Cirrus Logic, Inc. Gain ranging analog-to-digital converter with error correction
JP2000242321A (ja) * 1999-02-19 2000-09-08 Fujitsu Ltd フィードバック制御装置、ディジタルフィルタ装置、および記憶装置
US6631165B1 (en) * 1999-09-01 2003-10-07 Northrop Grumman Corporation Code modulation using narrow spectral notching
US6473733B1 (en) * 1999-12-01 2002-10-29 Research In Motion Limited Signal enhancement for voice coding
US7613529B1 (en) * 2000-09-09 2009-11-03 Harman International Industries, Limited System for eliminating acoustic feedback
SG98435A1 (en) * 2000-12-08 2003-09-19 Nanyang Polytechnic A method for detecting and removing howling
US6664460B1 (en) * 2001-01-05 2003-12-16 Harman International Industries, Incorporated System for customizing musical effects using digital signal processing techniques
KR20040034710A (ko) * 2001-09-06 2004-04-28 코닌클리케 필립스 일렉트로닉스 엔.브이. 주기 신호의 저조파를 생성하기 위한 방법 및 회로
US20030138117A1 (en) * 2002-01-22 2003-07-24 Goff Eugene F. System and method for the automated detection, identification and reduction of multi-channel acoustical feedback
US7203324B2 (en) * 2002-03-13 2007-04-10 Harman International Industries, Incorporated Audio feedback processing system
CA2634470C (en) * 2003-01-24 2013-05-14 Pratt & Whitney Canada Corp. Method and system for trend detection and analysis
US7227959B2 (en) * 2003-03-10 2007-06-05 Shure Incorporated Multi-channel digital feedback reducer system
US7912228B2 (en) * 2003-07-18 2011-03-22 Volkswagen Ag Device and method for operating voice-supported systems in motor vehicles
JP4258479B2 (ja) * 2005-03-10 2009-04-30 ヤマハ株式会社 グラフィックイコライザ制御装置
US8265295B2 (en) * 2005-03-11 2012-09-11 Rane Corporation Method and apparatus for identifying feedback in a circuit
US8243953B2 (en) * 2005-03-11 2012-08-14 Rane Corporation Method and apparatus for identifying a feedback frequency in a signal
US7840014B2 (en) * 2005-04-05 2010-11-23 Roland Corporation Sound apparatus with howling prevention function
US7280958B2 (en) * 2005-09-30 2007-10-09 Motorola, Inc. Method and system for suppressing receiver audio regeneration
EP1793645A3 (de) 2005-11-09 2008-08-06 GPE International Limited Akustische Rückkopplungsunterdrückung für Audioamplifikationssysteme
US20070104335A1 (en) * 2005-11-09 2007-05-10 Gpe International Limited Acoustic feedback suppression for audio amplification systems
US8359205B2 (en) 2008-10-24 2013-01-22 The Nielsen Company (Us), Llc Methods and apparatus to perform audio watermarking and watermark detection and extraction
US9667365B2 (en) 2008-10-24 2017-05-30 The Nielsen Company (Us), Llc Methods and apparatus to perform audio watermarking and watermark detection and extraction
US20100141761A1 (en) * 2008-12-08 2010-06-10 Mccormack Kenneth Method and system for stabilizing video images
US8477956B2 (en) * 2009-01-30 2013-07-02 Panasonic Corporation Howling suppression device, howling suppression method, program, and integrated circuit
US20110015922A1 (en) * 2009-07-20 2011-01-20 Larry Joseph Kirn Speech Intelligibility Improvement Method and Apparatus
TWM390014U (en) * 2010-01-14 2010-10-01 Phonic Corp Speaker box with feedback suppression capability and mixer
CN102711006B (zh) * 2012-05-30 2017-04-05 蒋憧 一种声音采集系统
US20150039321A1 (en) * 2013-07-31 2015-02-05 Arbitron Inc. Apparatus, System and Method for Reading Codes From Digital Audio on a Processing Device
US9711152B2 (en) 2013-07-31 2017-07-18 The Nielsen Company (Us), Llc Systems apparatus and methods for encoding/decoding persistent universal media codes to encoded audio
US9351072B2 (en) * 2013-11-05 2016-05-24 Bose Corporation Multi-band harmonic discrimination for feedback suppression
JP6669176B2 (ja) * 2015-12-02 2020-03-18 株式会社ソシオネクスト 信号処理装置および信号処理方法
US10540983B2 (en) 2017-06-01 2020-01-21 Sorenson Ip Holdings, Llc Detecting and reducing feedback
US10856078B1 (en) 2019-05-31 2020-12-01 Bose Corporation Systems and methods for audio feedback elimination
GB2591523B (en) * 2020-01-31 2022-03-23 Cirrus Logic Int Semiconductor Ltd Audio amplifier circuitry

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US4091236A (en) * 1976-09-07 1978-05-23 The University Of Akron Automatically tunable notch filter and method for suppression of acoustical feedback
DE2659028C3 (de) * 1976-12-27 1979-05-31 Dasy Inter S.A., Genf (Schweiz) Schaltungsanordnung zum Verhindern von Rückkopplungen
US4079199A (en) * 1977-05-25 1978-03-14 Patronis Jr Eugene T Acoustic feedback detector and automatic gain control
US4238746A (en) * 1978-03-20 1980-12-09 The United States Of America As Represented By The Secretary Of The Navy Adaptive line enhancer
US4232192A (en) * 1978-05-01 1980-11-04 Starkey Labs, Inc. Moving-average notch filter
US4382398A (en) * 1981-05-29 1983-05-10 Peavey Electronics Corp. Method and apparatus for eliminating feedback in stage monitors
JPS5864895A (ja) * 1981-10-14 1983-04-18 Shigetaro Muraoka ハウリング防止方法
US4449237A (en) * 1982-04-14 1984-05-15 Cincinnati Electronics Corporation Audio feedback suppressor
US4602337A (en) * 1983-02-24 1986-07-22 Cox James R Analog signal translating system with automatic frequency selective signal gain adjustment
US4649505A (en) * 1984-07-02 1987-03-10 General Electric Company Two-input crosstalk-resistant adaptive noise canceller
US4620069A (en) * 1984-11-23 1986-10-28 Itt Corporation Method and apparatus to determine whether a subscriber line is loaded or non-loaded
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US4658426A (en) * 1985-10-10 1987-04-14 Harold Antin Adaptive noise suppressor
US5029217A (en) * 1986-01-21 1991-07-02 Harold Antin Digital hearing enhancement apparatus
NL8600405A (nl) * 1986-02-18 1987-09-16 Philips Nv Versterker met automatische regeling van de versterking.
JPS635697A (ja) * 1986-06-26 1988-01-11 Matsushita Electric Ind Co Ltd ハウリング抑圧方法
JPS6318796A (ja) * 1986-07-10 1988-01-26 Matsushita Electric Ind Co Ltd ハウリング抑圧方法
EP0288159B1 (de) * 1987-03-23 1995-05-10 Matsushita Electric Industrial Co., Ltd. Digitales Entzerrergerät für getrennte Phasen- und Amplitudenmodifikation
US5027410A (en) * 1988-11-10 1991-06-25 Wisconsin Alumni Research Foundation Adaptive, programmable signal processing and filtering for hearing aids
US5046101A (en) * 1989-11-14 1991-09-03 Lovejoy Controls Corp. Audio dosage control system

Also Published As

Publication number Publication date
CA2066624A1 (en) 1991-12-14
US5245665A (en) 1993-09-14
CA2066624C (en) 1999-02-16
AU653736B2 (en) 1994-10-13
EP0486679A1 (de) 1992-05-27
EP0486679B1 (de) 1996-04-03
AU8108791A (en) 1992-01-07
EP0486679A4 (en) 1992-12-02
DE69118486D1 (de) 1996-05-09
WO1991020134A1 (en) 1991-12-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee