DE602004004242D1 - System und Verfahren zur Verbesserung eines Audiosignals - Google Patents

System und Verfahren zur Verbesserung eines Audiosignals

Info

Publication number
DE602004004242D1
DE602004004242D1 DE602004004242T DE602004004242T DE602004004242D1 DE 602004004242 D1 DE602004004242 D1 DE 602004004242D1 DE 602004004242 T DE602004004242 T DE 602004004242T DE 602004004242 T DE602004004242 T DE 602004004242T DE 602004004242 D1 DE602004004242 D1 DE 602004004242D1
Authority
DE
Germany
Prior art keywords
improving
audio signal
audio
signal
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 - Lifetime
Application number
DE602004004242T
Other languages
English (en)
Other versions
DE602004004242T2 (de
Inventor
Markus Christoph
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems GmbH
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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Publication of DE602004004242D1 publication Critical patent/DE602004004242D1/de
Application granted granted Critical
Publication of DE602004004242T2 publication Critical patent/DE602004004242T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/14—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control
DE602004004242T 2004-03-19 2004-03-19 System und Verfahren zur Verbesserung eines Audiosignals Expired - Lifetime DE602004004242T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04006732A EP1580882B1 (de) 2004-03-19 2004-03-19 System und Verfahren zur Verbesserung eines Audiosignals

Publications (2)

Publication Number Publication Date
DE602004004242D1 true DE602004004242D1 (de) 2007-02-22
DE602004004242T2 DE602004004242T2 (de) 2008-06-05

Family

ID=34854565

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004004242T Expired - Lifetime DE602004004242T2 (de) 2004-03-19 2004-03-19 System und Verfahren zur Verbesserung eines Audiosignals

Country Status (3)

Country Link
US (1) US7302062B2 (de)
EP (1) EP1580882B1 (de)
DE (1) DE602004004242T2 (de)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6986021B2 (en) 2001-11-30 2006-01-10 Quick Silver Technology, Inc. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements
EP1833163B1 (de) 2004-07-20 2019-12-18 Harman Becker Automotive Systems GmbH Audioverbesserungssystem und -verfahren
KR100703273B1 (ko) * 2004-11-01 2007-04-03 삼성전자주식회사 외부로부터 다운로드된 소리의 음량을 조절하는 장치 및방법
DE602005015426D1 (de) 2005-05-04 2009-08-27 Harman Becker Automotive Sys System und Verfahren zur Intensivierung von Audiosignalen
US7778718B2 (en) * 2005-05-24 2010-08-17 Rockford Corporation Frequency normalization of audio signals
JP4549243B2 (ja) * 2005-07-05 2010-09-22 アルパイン株式会社 車載オーディオ処理装置
FR2898209B1 (fr) * 2006-03-01 2008-12-12 Parrot Sa Procede de debruitage d'un signal audio
JP2008032767A (ja) * 2006-07-26 2008-02-14 Matsushita Electric Ind Co Ltd 能動騒音低減システム
AT504164B1 (de) * 2006-09-15 2009-04-15 Tech Universit T Graz Vorrichtung zur gerauschunterdruckung bei einem audiosignal
KR100832360B1 (ko) * 2006-09-25 2008-05-26 삼성전자주식회사 음원 재생기에서의 이퀄라이저 조정 방법 및 그 시스템
WO2008081403A1 (en) * 2006-12-29 2008-07-10 Grundig Elektronik Anonim Sirketi A method for reducing noise
EP1947642B1 (de) * 2007-01-16 2018-06-13 Apple Inc. Aktives geräuschdämpfungssystem
US8542846B2 (en) * 2007-02-23 2013-09-24 John Lloyd Matejczyk Vehicle sound enhancing system and method of producing
US20080205662A1 (en) * 2007-02-23 2008-08-28 John Lloyd Matejczyk Vehicle sound (s) enhancing accessory and method
ATE518381T1 (de) * 2007-09-27 2011-08-15 Harman Becker Automotive Sys Automatische bassregelung
KR101238361B1 (ko) * 2007-10-15 2013-02-28 삼성전자주식회사 어레이 스피커 시스템에서 근접장 효과를 보상하는 방법 및장치
JP5278993B2 (ja) * 2008-01-10 2013-09-04 アルパイン株式会社 音声処理装置、音声処理方法及び音声処理プログラム
WO2008065209A2 (en) * 2008-01-22 2008-06-05 Phonak Ag Method for determining a maximum gain in a hearing device as well as a hearing device
US8213629B2 (en) * 2008-02-29 2012-07-03 Personics Holdings Inc. Method and system for automatic level reduction
US8085941B2 (en) * 2008-05-02 2011-12-27 Dolby Laboratories Licensing Corporation System and method for dynamic sound delivery
JP4640461B2 (ja) * 2008-07-08 2011-03-02 ソニー株式会社 音量調整装置およびプログラム
US8750530B2 (en) * 2009-09-15 2014-06-10 Native Instruments Gmbh Method and arrangement for processing audio data, and a corresponding corresponding computer-readable storage medium
US8219394B2 (en) * 2010-01-20 2012-07-10 Microsoft Corporation Adaptive ambient sound suppression and speech tracking
US8320581B2 (en) * 2010-03-03 2012-11-27 Bose Corporation Vehicle engine sound enhancement
US8473287B2 (en) 2010-04-19 2013-06-25 Audience, Inc. Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system
US8538035B2 (en) 2010-04-29 2013-09-17 Audience, Inc. Multi-microphone robust noise suppression
US8781137B1 (en) 2010-04-27 2014-07-15 Audience, Inc. Wind noise detection and suppression
US9135907B2 (en) 2010-06-17 2015-09-15 Dolby Laboratories Licensing Corporation Method and apparatus for reducing the effect of environmental noise on listeners
US8447596B2 (en) 2010-07-12 2013-05-21 Audience, Inc. Monaural noise suppression based on computational auditory scene analysis
US8639499B2 (en) 2010-07-28 2014-01-28 Motorola Solutions, Inc. Formant aided noise cancellation using multiple microphones
US8362921B2 (en) * 2010-09-15 2013-01-29 Bose Corporation Vehicle external warning sound generation system and method
US20130311174A1 (en) * 2010-12-20 2013-11-21 Nikon Corporation Audio control device and imaging device
US9299337B2 (en) 2011-01-11 2016-03-29 Bose Corporation Vehicle engine sound enhancement
US9064497B2 (en) 2012-02-22 2015-06-23 Htc Corporation Method and apparatus for audio intelligibility enhancement and computing apparatus
CN102946253B (zh) * 2012-10-23 2016-06-08 保定市三川电气有限责任公司 数据采样方法与系统及其在参数辨识中的应用方法与系统
US10414337B2 (en) 2013-11-19 2019-09-17 Harman International Industries, Inc. Apparatus for providing environmental noise compensation for a synthesized vehicle sound
KR102160473B1 (ko) * 2014-05-07 2020-09-28 삼성전자주식회사 볼륨을 제어하는 방법 및 전자 장치
CN105336341A (zh) 2014-05-26 2016-02-17 杜比实验室特许公司 增强音频信号中的语音内容的可理解性
CN110808723B (zh) 2014-05-26 2024-09-17 杜比实验室特许公司 音频信号响度控制
CN104037606B (zh) * 2014-06-19 2017-04-12 中国科学院光电技术研究所 一种基于光纤的分布式自适应光学系统
CN105811907B (zh) * 2014-12-29 2018-07-31 宏碁股份有限公司 音频处理方法
US10079643B2 (en) * 2016-11-23 2018-09-18 Stmicroelectronics (Research & Development) Limited Devices and methods for transmitting and receiving in an optical communications system
US10140089B1 (en) * 2017-08-09 2018-11-27 2236008 Ontario Inc. Synthetic speech for in vehicle communication
US10827265B2 (en) * 2018-01-25 2020-11-03 Cirrus Logic, Inc. Psychoacoustics for improved audio reproduction, power reduction, and speaker protection
US11153682B1 (en) 2020-09-18 2021-10-19 Cirrus Logic, Inc. Micro-speaker audio power reproduction system and method with reduced energy use and thermal protection using micro-speaker electro-acoustic response and human hearing thresholds
US11159888B1 (en) 2020-09-18 2021-10-26 Cirrus Logic, Inc. Transducer cooling by introduction of a cooling component in the transducer input signal
FR3142031A1 (fr) * 2022-11-16 2024-05-17 Arkamys Procédé d’égalisation d’un signal audiofréquences diffusé dans un environnement de diffusion, produit programme d’ordinateur et dispositif correspondant

Family Cites Families (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714622A (en) 1969-12-12 1973-01-30 Us Navy Adaptive agc system
US3934084A (en) 1974-03-27 1976-01-20 Television Research Limited Variable gain amplifier controlled by ambient noise level
US3934085A (en) 1973-03-28 1976-01-20 Television Research Limited Audio amplifier systems
US4025723A (en) 1975-07-07 1977-05-24 Hearing Health Group, Inc. Real time amplitude control of electrical waves
FR2400279A1 (fr) 1977-08-09 1979-03-09 Simeau Bernard Dispositifs d'analyse et de traitement de signaux
GB2013051A (en) 1978-01-20 1979-08-01 Secr Defence Gain control in telecommunications systems
GB2029141A (en) 1978-08-26 1980-03-12 Viva Co Gain control arrangements
CH644974A5 (de) 1979-02-09 1984-08-31 Blaupunkt Werke Gmbh Schaltungsanordnung zum selbsttaetigen anpassen der lautstaerke mindestens eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel fuer rundfunkempfaenger.
DE3068929D1 (en) 1979-03-05 1984-09-20 Auguste Begarie Dry vacuum cleaning machine for floors
US4297527A (en) 1979-05-01 1981-10-27 E-Systems, Inc. Input gain adjusting apparatus and method
US4306115A (en) 1980-03-19 1981-12-15 Humphrey Francis S Automatic volume control system
JPS56147525A (en) 1980-04-18 1981-11-16 Hitachi Ltd Reception playback system
US4409435A (en) 1980-10-03 1983-10-11 Gen Engineering Co., Ltd. Hearing aid suitable for use under noisy circumstance
JPS57136811A (en) 1981-02-18 1982-08-24 Nissan Motor Co Ltd Automatic controller of sound volume
US4476571A (en) 1981-06-15 1984-10-09 Pioneer Electronic Corporation Automatic sound volume control device
US4406923A (en) 1981-10-28 1983-09-27 Cbs Inc. Automatic loudness controller
EP0084982B1 (de) 1982-01-27 1987-11-11 Racal Acoustics Limited Kommunikationssysteme
US4438526A (en) 1982-04-26 1984-03-20 Conwed Corporation Automatic volume and frequency controlled sound masking system
DE3220758A1 (de) 1982-06-02 1983-12-08 Hans-Christian 2872 Hude Persson Verfahren zur selbsttaetigen anpassung der lautstaerke und der dynamik elektroakustischer signale an den am hoerort auftretenden stoerschallpegel
US4461025A (en) 1982-06-22 1984-07-17 Audiological Engineering Corporation Automatic background noise suppressor
US5034984A (en) 1983-02-14 1991-07-23 Bose Corporation Speed-controlled amplifying
DE3320751A1 (de) 1983-06-09 1984-12-13 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zum selbsttaetigen anpassen der lautstaerke eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel
DE3322055A1 (de) 1983-06-18 1984-12-20 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zum selbsttaetigen anpassen der lautstaerke eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel
US4590593A (en) 1983-06-30 1986-05-20 Nl Industries, Inc. Electronic noise filtering system
DE3426068A1 (de) 1983-09-22 1985-04-11 Blaupunkt-Werke Gmbh, 3200 Hildesheim Verfahren zum anpassen der lautstaerke eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel
DE3338413A1 (de) 1983-10-22 1985-05-02 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zum selbsttaetigen anpassen der lautstaerke eines lautsprechers an einen am lautsprecherort herrschenden stoergeraeuschpegel
US4553258A (en) 1983-12-30 1985-11-12 International Business Machines Corporation Segmentation algorithm for signature vertification
US4641344A (en) 1984-01-06 1987-02-03 Nissan Motor Company, Limited Audio equipment
US4649505A (en) 1984-07-02 1987-03-10 General Electric Company Two-input crosstalk-resistant adaptive noise canceller
US4598417A (en) 1984-08-15 1986-07-01 Research Corporation Electronic stethoscope
NL8403200A (nl) 1984-10-22 1986-05-16 Philips Nv Lawaaiafhankelijke- en spraakonafhankelijke volumeregeling.
US4636586A (en) 1985-09-20 1987-01-13 Rca Corporation Speakerphone with adaptive cancellation of room echoes
JPH0720310B2 (ja) 1985-10-23 1995-03-06 松下電器産業株式会社 音質調整装置
CA1293693C (en) 1985-10-30 1991-12-31 Tetsu Taguchi Noise canceling apparatus
JPS62135020A (ja) 1985-12-06 1987-06-18 Nec Corp 雑音消去装置
US4696030A (en) 1985-12-16 1987-09-22 Elscint Ltd. Patient operator intercom arrangements for magnetic resonance imaging systems
US4718099A (en) 1986-01-29 1988-01-05 Telex Communications, Inc. Automatic gain control for hearing aid
US4731850A (en) 1986-06-26 1988-03-15 Audimax, Inc. Programmable digital hearing aid system
US4823391A (en) 1986-07-22 1989-04-18 Schwartz David M Sound reproduction system
US4891605A (en) 1986-08-13 1990-01-02 Tirkel Anatol Z Adaptive gain control amplifier
US4696044A (en) 1986-09-29 1987-09-22 Waller Jr James K Dynamic noise reduction with logarithmic control
BE1000522A4 (fr) 1987-05-08 1989-01-17 Staar Sa Procede et dispositif d'avertissement influencant la transmission d'informations provenant d'une source sonore a destination d'ecouteurs en fonction d'elements exterieurs.
US4887299A (en) 1987-11-12 1989-12-12 Nicolet Instrument Corporation Adaptive, programmable signal processing hearing aid
DE3830423A1 (de) 1987-11-25 1989-06-08 Pioneer Electronic Corp Mobiles geraet mit automatischer lautstaerkeregelung
DE3741253A1 (de) 1987-12-05 1989-06-15 Blaupunkt Werke Gmbh Verfahren und schaltungsanordnung zur selbsttaetigen stoergeraeuschabhaengigen lautstaerkeregelung
US4852175A (en) 1988-02-03 1989-07-25 Siemens Hearing Instr Inc Hearing aid signal-processing system
DE3837538C2 (de) 1988-02-03 1996-10-17 Pioneer Electronic Corp Lautstärkesteuerschaltung mit Frequenzgangkompensation für ein Audiowiedergabegerät eines Kraftfahrzeugs
US4837834A (en) 1988-05-04 1989-06-06 Nelson Industries, Inc. Active acoustic attenuation system with differential filtering
JP2656306B2 (ja) 1988-07-05 1997-09-24 株式会社東芝 電話機
GB2222053B (en) 1988-08-17 1993-03-31 Topexpress Ltd Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise
JP2598483B2 (ja) 1988-09-05 1997-04-09 日立プラント建設株式会社 電子消音システム
US5077799A (en) 1989-01-13 1991-12-31 Brian Cotton Automatic volume control circuit
US5146507A (en) 1989-02-23 1992-09-08 Yamaha Corporation Audio reproduction characteristics control device
US4965834A (en) 1989-03-20 1990-10-23 The United States Of America As Represented By The Secretary Of The Navy Multi-stage noise-reducing system
US4956867A (en) 1989-04-20 1990-09-11 Massachusetts Institute Of Technology Adaptive beamforming for noise reduction
JPH034611A (ja) 1989-06-01 1991-01-10 Pioneer Electron Corp 車載用自動音量調整装置
FR2647909B1 (fr) 1989-06-02 1992-04-30 Thomson Csf Procede et dispositif de correction des signaux fournis par les hydrophones d'une antenne et antenne de sonar utilisant un tel dispositif
US4953221A (en) 1989-06-15 1990-08-28 Walkaway Technologies, Inc. Constant power ratio automatic gain control
JPH0389706A (ja) 1989-09-01 1991-04-15 Pioneer Electron Corp 自動音量調整装置
US5126681A (en) 1989-10-16 1992-06-30 Noise Cancellation Technologies, Inc. In-wire selective active cancellation system
JP3193032B2 (ja) 1989-12-05 2001-07-30 パイオニア株式会社 車載用自動音量調整装置
US5243661A (en) 1990-04-09 1993-09-07 Sony Corporation Microphone apparatus
JPH0834647B2 (ja) 1990-06-11 1996-03-29 松下電器産業株式会社 消音装置
US5117401A (en) 1990-08-16 1992-05-26 Hughes Aircraft Company Active adaptive noise canceller without training mode
US6370254B1 (en) 1990-09-11 2002-04-09 Concourse Communications Limited Audio-visual reproduction
US5146505A (en) 1990-10-04 1992-09-08 General Motors Corporation Method for actively attenuating engine generated noise
JP2569868Y2 (ja) 1990-10-05 1998-04-28 アルパイン 株式会社 車載用音響機器
US5089997A (en) 1990-11-02 1992-02-18 Pasar, Inc. Ultrasonic energy detector with frequency and amplitude indications and background noise reduction
US5255324A (en) 1990-12-26 1993-10-19 Ford Motor Company Digitally controlled audio amplifier with voltage limiting
GB2257317A (en) 1991-06-26 1993-01-06 Damian Rupert Lindley Automatic volume control for car stereo
US5293425A (en) 1991-12-03 1994-03-08 Massachusetts Institute Of Technology Active noise reducing
US5267322A (en) 1991-12-13 1993-11-30 Digital Sound Corporation Digital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initialization
JP2921232B2 (ja) 1991-12-27 1999-07-19 日産自動車株式会社 能動型不快波制御装置
DE4204385A1 (de) 1992-02-14 1993-08-19 Blaupunkt Werke Gmbh Verfahren und anordnung zur ermittlung des fahrgeraeusches
JP3056866B2 (ja) 1992-02-17 2000-06-26 アルパイン株式会社 自動音量制御方式
US5485523A (en) 1992-03-17 1996-01-16 Fuji Jukogyo Kabushiki Kaisha Active noise reduction system for automobile compartment
US5291558A (en) 1992-04-09 1994-03-01 Rane Corporation Automatic level control of multiple audio signal sources
IL101556A (en) 1992-04-10 1996-08-04 Univ Ramot Multi-channel signal separation using cross-polyspectra
US5226016A (en) 1992-04-16 1993-07-06 The United States Of America As Represented By The Secretary Of The Navy Adaptively formed signal-free reference system
JP3306600B2 (ja) * 1992-08-05 2002-07-24 三菱電機株式会社 自動音量調整装置
CA2107316C (en) 1992-11-02 1996-12-17 Roger David Benning Electronic cancellation of ambient noise in telephone receivers
US5434922A (en) 1993-04-08 1995-07-18 Miller; Thomas E. Method and apparatus for dynamic sound optimization
DE4314451A1 (de) 1993-05-03 1994-11-10 Blaupunkt Werke Gmbh Anordnung zur geräuschabhängigen Regelung der Lautstärke eines Autoradios
JPH06332474A (ja) 1993-05-25 1994-12-02 Matsushita Electric Ind Co Ltd 騒音消去装置
BE1007188A3 (fr) 1993-06-30 1995-04-18 Staar Sa Procede automatique de reglage du volume de reproduction sonore.
JPH07182587A (ja) 1993-12-21 1995-07-21 Honda Motor Co Ltd 電気車両用擬似音発生装置
US5796847A (en) 1994-09-06 1998-08-18 Matsushita Electric Industrial Co. Ltd. Sound reproduction apparatus
US5872852A (en) 1995-09-21 1999-02-16 Dougherty; A. Michael Noise estimating system for use with audio reproduction equipment
JPH09212196A (ja) * 1996-01-31 1997-08-15 Nippon Telegr & Teleph Corp <Ntt> 雑音抑圧装置
GB2314476A (en) 1996-06-21 1997-12-24 Ford Motor Co Limiter for audio system in which the limiting threshold is altered by the volume control
US6072881A (en) 1996-07-08 2000-06-06 Chiefs Voice Incorporated Microphone noise rejection system
US5884992A (en) 1996-09-19 1999-03-23 James F. Taylor Modular individual lighting arrangement for sports activities
DE19734969B4 (de) 1996-09-28 2006-08-24 Volkswagen Ag Verfahren und Vorrichtung zur Wiedergabe von Audiosignalen
US5666426A (en) 1996-10-17 1997-09-09 Advanced Micro Devices, Inc. Automatic volume control to compensate for ambient noise variations
DE19736699A1 (de) 1997-08-17 1999-02-18 Gruetzmann Peter Verfahren zur automatischen Regelung der Lautstärke eines Lautsprechers abhängig vom Störpegel der Umgebung (Quotientenverfahren)
DE19826389A1 (de) 1998-06-12 1999-12-16 Sgs Thomson Microelectronics Signalkomprimierer für Audiogerät
EP0998166A1 (de) * 1998-10-30 2000-05-03 Koninklijke Philips Electronics N.V. Anordnung zur Verarbeitung von Audiosignalen, Empfänger und Verfahren zum Filtern und Wiedergabe eines Nutzsignals in Gegenwart von Umgebungsgeräusche
DE10018666A1 (de) 2000-04-14 2001-10-18 Harman Audio Electronic Sys Vorrichtung und Verfahren zum geräuschabhängigen Anpassen eines akustischen Nutzsignals
US6868162B1 (en) * 2000-11-17 2005-03-15 Mackie Designs Inc. Method and apparatus for automatic volume control in an audio system
DE10107385A1 (de) 2001-02-16 2002-09-05 Harman Audio Electronic Sys Vorrichtung zum geräuschabhängigen Einstellen der Lautstärken
GB2379148A (en) 2001-08-21 2003-02-26 Mitel Knowledge Corp Voice activity detection

Also Published As

Publication number Publication date
US20050207583A1 (en) 2005-09-22
DE602004004242T2 (de) 2008-06-05
US7302062B2 (en) 2007-11-27
EP1580882B1 (de) 2007-01-10
EP1580882A1 (de) 2005-09-28

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