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CA2401672A1 - Ponderation spectrale perceptive de bandes de frequence pour une suppression adaptative du bruit - Google Patents

Ponderation spectrale perceptive de bandes de frequence pour une suppression adaptative du bruit Download PDF

Info

Publication number
CA2401672A1
CA2401672A1 CA002401672A CA2401672A CA2401672A1 CA 2401672 A1 CA2401672 A1 CA 2401672A1 CA 002401672 A CA002401672 A CA 002401672A CA 2401672 A CA2401672 A CA 2401672A CA 2401672 A1 CA2401672 A1 CA 2401672A1
Authority
CA
Canada
Prior art keywords
frequency band
speech
frequency
weighting values
value
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.)
Abandoned
Application number
CA002401672A
Other languages
English (en)
Inventor
Ravi Chandran
Bruce E. Dunne
Daniel J. Marchok
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.)
Coriant Operations Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2401672A1 publication Critical patent/CA2401672A1/fr
Abandoned 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques

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)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
CA002401672A 2000-03-28 2001-03-02 Ponderation spectrale perceptive de bandes de frequence pour une suppression adaptative du bruit Abandoned CA2401672A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53781400A 2000-03-28 2000-03-28
US09/537,814 2000-03-28
PCT/US2001/006888 WO2001073759A1 (fr) 2000-03-28 2001-03-02 Ponderation spectrale perceptive de bandes de frequence pour une suppression adaptative du bruit

Publications (1)

Publication Number Publication Date
CA2401672A1 true CA2401672A1 (fr) 2001-10-04

Family

ID=24144210

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002401672A Abandoned CA2401672A1 (fr) 2000-03-28 2001-03-02 Ponderation spectrale perceptive de bandes de frequence pour une suppression adaptative du bruit

Country Status (4)

Country Link
EP (1) EP1287521A4 (fr)
AU (1) AU2001245418A1 (fr)
CA (1) CA2401672A1 (fr)
WO (1) WO2001073759A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101366124B1 (ko) * 2006-02-14 2014-02-21 오렌지 오디오 인코딩/디코딩에서의 인지 가중 장치
US8194873B2 (en) 2006-06-26 2012-06-05 Davis Pan Active noise reduction adaptive filter leakage adjusting
GB0725110D0 (en) 2007-12-21 2008-01-30 Wolfson Microelectronics Plc Gain control based on noise level
GB0725113D0 (en) * 2007-12-21 2008-01-30 Wolfson Microelectronics Plc SNR dependent gain
US8204242B2 (en) 2008-02-29 2012-06-19 Bose Corporation Active noise reduction adaptive filter leakage adjusting
US8355512B2 (en) 2008-10-20 2013-01-15 Bose Corporation Active noise reduction adaptive filter leakage adjusting
US8306240B2 (en) 2008-10-20 2012-11-06 Bose Corporation Active noise reduction adaptive filter adaptation rate adjusting
US8160271B2 (en) * 2008-10-23 2012-04-17 Continental Automotive Systems, Inc. Variable noise masking during periods of substantial silence
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
CN103325380B (zh) 2012-03-23 2017-09-12 杜比实验室特许公司 用于信号增强的增益后处理

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185168A (en) * 1976-05-04 1980-01-22 Causey G Donald Method and means for adaptively filtering near-stationary noise from an information bearing signal
US4630305A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic gain selector for a noise suppression system
EP0681730A4 (fr) * 1993-11-30 1997-12-17 At & T Corp Reduction du bruit transmis dans les systemes de telecommunications.
US5768473A (en) * 1995-01-30 1998-06-16 Noise Cancellation Technologies, Inc. Adaptive speech filter
US5706395A (en) * 1995-04-19 1998-01-06 Texas Instruments Incorporated Adaptive weiner filtering using a dynamic suppression factor
JP3591068B2 (ja) * 1995-06-30 2004-11-17 ソニー株式会社 音声信号の雑音低減方法
JPH09212196A (ja) * 1996-01-31 1997-08-15 Nippon Telegr & Teleph Corp <Ntt> 雑音抑圧装置
US5806025A (en) * 1996-08-07 1998-09-08 U S West, Inc. Method and system for adaptive filtering of speech signals using signal-to-noise ratio to choose subband filter bank

Also Published As

Publication number Publication date
AU2001245418A1 (en) 2001-10-08
EP1287521A4 (fr) 2005-11-16
WO2001073759A1 (fr) 2001-10-04
EP1287521A1 (fr) 2003-03-05

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued