EP1251493A3 - Method for noise reduction with self-adjusting spurious frequency - Google Patents

Method for noise reduction with self-adjusting spurious frequency Download PDF

Info

Publication number
EP1251493A3
EP1251493A3 EP02008011A EP02008011A EP1251493A3 EP 1251493 A3 EP1251493 A3 EP 1251493A3 EP 02008011 A EP02008011 A EP 02008011A EP 02008011 A EP02008011 A EP 02008011A EP 1251493 A3 EP1251493 A3 EP 1251493A3
Authority
EP
European Patent Office
Prior art keywords
self
adjusting
noise reduction
spurious frequency
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.)
Granted
Application number
EP02008011A
Other languages
German (de)
French (fr)
Other versions
EP1251493A2 (en
EP1251493B1 (en
Inventor
Markus Buck
Tim Dr. Haulick
Klaus Dr. Linhard
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
DaimlerChrysler AG
Harman Becker Automotive Systems GmbH
Harman Becker Automotive Systems Becker Division 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 DaimlerChrysler AG, Harman Becker Automotive Systems GmbH, Harman Becker Automotive Systems Becker Division GmbH filed Critical DaimlerChrysler AG
Publication of EP1251493A2 publication Critical patent/EP1251493A2/en
Publication of EP1251493A3 publication Critical patent/EP1251493A3/en
Application granted granted Critical
Publication of EP1251493B1 publication Critical patent/EP1251493B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)

Abstract

The signals are processed together in pairs. Only one of the processed signals is subjected to a spectral subtraction, and combined with the other signal to form a difference signal. The primary signal may be connected as a differential array of two channels (1,2), or as a sum and difference signal of two channels.
EP02008011A 2001-04-14 2002-04-10 Method for noise reduction with self-adjusting spurious frequency Expired - Lifetime EP1251493B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10118653 2001-04-14
DE10118653A DE10118653C2 (en) 2001-04-14 2001-04-14 Method for noise reduction

Publications (3)

Publication Number Publication Date
EP1251493A2 EP1251493A2 (en) 2002-10-23
EP1251493A3 true EP1251493A3 (en) 2003-11-19
EP1251493B1 EP1251493B1 (en) 2006-08-16

Family

ID=7681629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008011A Expired - Lifetime EP1251493B1 (en) 2001-04-14 2002-04-10 Method for noise reduction with self-adjusting spurious frequency

Country Status (5)

Country Link
US (1) US7020291B2 (en)
EP (1) EP1251493B1 (en)
JP (1) JP4588966B2 (en)
AT (1) ATE336782T1 (en)
DE (2) DE10118653C2 (en)

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US7885420B2 (en) 2003-02-21 2011-02-08 Qnx Software Systems Co. Wind noise suppression system
US7949522B2 (en) 2003-02-21 2011-05-24 Qnx Software Systems Co. System for suppressing rain noise
US8326621B2 (en) 2003-02-21 2012-12-04 Qnx Software Systems Limited Repetitive transient noise removal
US7725315B2 (en) 2003-02-21 2010-05-25 Qnx Software Systems (Wavemakers), Inc. Minimization of transient noises in a voice signal
US7895036B2 (en) 2003-02-21 2011-02-22 Qnx Software Systems Co. System for suppressing wind noise
US8271279B2 (en) 2003-02-21 2012-09-18 Qnx Software Systems Limited Signature noise removal
US9099094B2 (en) 2003-03-27 2015-08-04 Aliphcom Microphone array with rear venting
WO2005048648A2 (en) * 2003-11-12 2005-05-26 Oticon A/S Microphone system
WO2006027707A1 (en) * 2004-09-07 2006-03-16 Koninklijke Philips Electronics N.V. Telephony device with improved noise suppression
KR100640865B1 (en) * 2004-09-07 2006-11-02 엘지전자 주식회사 method and apparatus for enhancing quality of speech
US7949520B2 (en) 2004-10-26 2011-05-24 QNX Software Sytems Co. Adaptive filter pitch extraction
US8170879B2 (en) 2004-10-26 2012-05-01 Qnx Software Systems Limited Periodic signal enhancement system
US7610196B2 (en) * 2004-10-26 2009-10-27 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
US8306821B2 (en) * 2004-10-26 2012-11-06 Qnx Software Systems Limited Sub-band periodic signal enhancement system
US8543390B2 (en) * 2004-10-26 2013-09-24 Qnx Software Systems Limited Multi-channel periodic signal enhancement system
US7680652B2 (en) 2004-10-26 2010-03-16 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
US7716046B2 (en) 2004-10-26 2010-05-11 Qnx Software Systems (Wavemakers), Inc. Advanced periodic signal enhancement
US8284947B2 (en) * 2004-12-01 2012-10-09 Qnx Software Systems Limited Reverberation estimation and suppression system
US8027833B2 (en) 2005-05-09 2011-09-27 Qnx Software Systems Co. System for suppressing passing tire hiss
US8520861B2 (en) * 2005-05-17 2013-08-27 Qnx Software Systems Limited Signal processing system for tonal noise robustness
US8170875B2 (en) * 2005-06-15 2012-05-01 Qnx Software Systems Limited Speech end-pointer
US8311819B2 (en) * 2005-06-15 2012-11-13 Qnx Software Systems Limited System for detecting speech with background voice estimates and noise estimates
CN1809105B (en) * 2006-01-13 2010-05-12 北京中星微电子有限公司 Dual-microphone speech enhancement method and system applicable to mini-type mobile communication devices
US8180067B2 (en) * 2006-04-28 2012-05-15 Harman International Industries, Incorporated System for selectively extracting components of an audio input signal
US7844453B2 (en) 2006-05-12 2010-11-30 Qnx Software Systems Co. Robust noise estimation
US8949120B1 (en) 2006-05-25 2015-02-03 Audience, Inc. Adaptive noise cancelation
US8036767B2 (en) * 2006-09-20 2011-10-11 Harman International Industries, Incorporated System for extracting and changing the reverberant content of an audio input signal
US8326620B2 (en) 2008-04-30 2012-12-04 Qnx Software Systems Limited Robust downlink speech and noise detector
US8335685B2 (en) 2006-12-22 2012-12-18 Qnx Software Systems Limited Ambient noise compensation system robust to high excitation noise
US20080231557A1 (en) * 2007-03-20 2008-09-25 Leadis Technology, Inc. Emission control in aged active matrix oled display using voltage ratio or current ratio
US8837746B2 (en) * 2007-06-13 2014-09-16 Aliphcom Dual omnidirectional microphone array (DOMA)
US8850154B2 (en) 2007-09-11 2014-09-30 2236008 Ontario Inc. Processing system having memory partitioning
US8904400B2 (en) 2007-09-11 2014-12-02 2236008 Ontario Inc. Processing system having a partitioning component for resource partitioning
US8694310B2 (en) 2007-09-17 2014-04-08 Qnx Software Systems Limited Remote control server protocol system
WO2009057329A1 (en) * 2007-11-01 2009-05-07 Panasonic Corporation Encoding device, decoding device, and method thereof
US8209514B2 (en) 2008-02-04 2012-06-26 Qnx Software Systems Limited Media processing system having resource partitioning
WO2009132646A1 (en) * 2008-05-02 2009-11-05 Gn Netcom A/S A method of combining at least two audio signals and a microphone system comprising at least two microphones
US9020158B2 (en) 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8135140B2 (en) 2008-11-20 2012-03-13 Harman International Industries, Incorporated System for active noise control with audio signal compensation
US8300561B2 (en) * 2008-12-30 2012-10-30 Texas Instruments Incorporated Methods and apparatus for canceling distortion in full-duplex transceivers
US8718289B2 (en) 2009-01-12 2014-05-06 Harman International Industries, Incorporated System for active noise control with parallel adaptive filter configuration
US8189799B2 (en) 2009-04-09 2012-05-29 Harman International Industries, Incorporated System for active noise control based on audio system output
US8199924B2 (en) 2009-04-17 2012-06-12 Harman International Industries, Incorporated System for active noise control with an infinite impulse response filter
US8077873B2 (en) 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
FR2948484B1 (en) * 2009-07-23 2011-07-29 Parrot METHOD FOR FILTERING NON-STATIONARY SIDE NOISES FOR A MULTI-MICROPHONE AUDIO DEVICE, IN PARTICULAR A "HANDS-FREE" TELEPHONE DEVICE FOR A MOTOR VEHICLE
KR101387195B1 (en) * 2009-10-05 2014-04-21 하만인터내셔날인더스트리스인코포레이티드 System for spatial extraction of audio signals
US9558755B1 (en) 2010-05-20 2017-01-31 Knowles Electronics, Llc Noise suppression assisted automatic speech recognition
EP2509337B1 (en) * 2011-04-06 2014-09-24 Sony Ericsson Mobile Communications AB Accelerometer vector controlled noise cancelling method
FR2976111B1 (en) * 2011-06-01 2013-07-05 Parrot AUDIO EQUIPMENT COMPRISING MEANS FOR DEBRISING A SPEECH SIGNAL BY FRACTIONAL TIME FILTERING, IN PARTICULAR FOR A HANDS-FREE TELEPHONY SYSTEM
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
CN102820036B (en) * 2012-09-07 2014-04-16 歌尔声学股份有限公司 Method and device for eliminating noises in self-adaption mode
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
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US10204637B2 (en) * 2016-05-21 2019-02-12 Stephen P Forte Noise reduction methodology for wearable devices employing multitude of sensors
JP7007861B2 (en) * 2017-10-31 2022-01-25 ローム株式会社 Audio circuits and electronic devices using them
CN109074817B (en) * 2018-07-19 2021-06-25 深圳市汇顶科技股份有限公司 Voice enhancement method, device, equipment and storage medium

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US5479517A (en) * 1992-12-23 1995-12-26 Daimler-Benz Ag Method of estimating delay in noise-affected voice channels
EP0615226A2 (en) * 1993-03-11 1994-09-14 Daimler-Benz Aktiengesellschaft Method for noise reduction in disturbed voice drannels

Non-Patent Citations (1)

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Title
BOLL S F: "SUPPRESSION OF ACOUSTIC NOISE IN SPEECH USING SPECTRAL SUBTRACTION", IEEE TRANSACTIONS ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, IEEE INC. NEW YORK, US, vol. 27, no. 2, 1 April 1979 (1979-04-01), pages 113 - 120, XP000560467, ISSN: 0096-3518 *

Also Published As

Publication number Publication date
EP1251493A2 (en) 2002-10-23
DE10118653C2 (en) 2003-03-27
US20020176589A1 (en) 2002-11-28
EP1251493B1 (en) 2006-08-16
JP4588966B2 (en) 2010-12-01
US7020291B2 (en) 2006-03-28
JP2002374589A (en) 2002-12-26
DE10118653A1 (en) 2002-10-24
ATE336782T1 (en) 2006-09-15
DE50207832D1 (en) 2006-09-28

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