EE200000677A - Signaali müra vähendamine spektraalse lahutamise abil, kasutades spektrist sõltuva eksponentsiaalsevõimendusfunktsiooni keskmistamist - Google Patents

Signaali müra vähendamine spektraalse lahutamise abil, kasutades spektrist sõltuva eksponentsiaalsevõimendusfunktsiooni keskmistamist

Info

Publication number
EE200000677A
EE200000677A EEP200000677A EEP200000677A EE200000677A EE 200000677 A EE200000677 A EE 200000677A EE P200000677 A EEP200000677 A EE P200000677A EE P200000677 A EEP200000677 A EE P200000677A EE 200000677 A EE200000677 A EE 200000677A
Authority
EE
Estonia
Prior art keywords
spectral
gain function
discrepancy
averaging
noise reduction
Prior art date
Application number
EEP200000677A
Other languages
English (en)
Estonian (et)
Inventor
Gustafsson Harald
Claesson Ingvar
Nordholm Sven
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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 Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of EE200000677A publication Critical patent/EE200000677A/xx

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
    • 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
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Near-Field Transmission Systems (AREA)
  • Complex Calculations (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement Of Radiation (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Circuit For Audible Band Transducer (AREA)
EEP200000677A 1998-05-27 1999-05-27 Signaali müra vähendamine spektraalse lahutamise abil, kasutades spektrist sõltuva eksponentsiaalsevõimendusfunktsiooni keskmistamist EE200000677A (et)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/084,503 US6459914B1 (en) 1998-05-27 1998-05-27 Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
PCT/SE1999/000898 WO1999062053A1 (fr) 1998-05-27 1999-05-27 Reduction signal-bruit par soustraction spectrale a l'aide d'une fonction de gain exponentielle dependant du spectre

Publications (1)

Publication Number Publication Date
EE200000677A true EE200000677A (et) 2002-04-15

Family

ID=22185365

Family Applications (1)

Application Number Title Priority Date Filing Date
EEP200000677A EE200000677A (et) 1998-05-27 1999-05-27 Signaali müra vähendamine spektraalse lahutamise abil, kasutades spektrist sõltuva eksponentsiaalsevõimendusfunktsiooni keskmistamist

Country Status (14)

Country Link
US (1) US6459914B1 (fr)
EP (1) EP1080463B1 (fr)
JP (1) JP2002517020A (fr)
KR (1) KR100595799B1 (fr)
CN (1) CN1134766C (fr)
AT (1) ATE251328T1 (fr)
AU (1) AU4664399A (fr)
BR (1) BR9910740A (fr)
DE (1) DE69911768D1 (fr)
EE (1) EE200000677A (fr)
HK (1) HK1039649B (fr)
IL (1) IL139858A (fr)
MY (1) MY119850A (fr)
WO (1) WO1999062053A1 (fr)

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US6459914B1 (en) * 1998-05-27 2002-10-01 Telefonaktiebolaget Lm Ericsson (Publ) Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
SE517525C2 (sv) * 1999-09-07 2002-06-18 Ericsson Telefon Ab L M Förfarande och anordning för konstruktion av digitala filter
GB2358558B (en) * 2000-01-18 2003-10-15 Mitel Corp Packet loss compensation method using injection of spectrally shaped noise
JP4282227B2 (ja) * 2000-12-28 2009-06-17 日本電気株式会社 ノイズ除去の方法及び装置
CN101031963B (zh) * 2004-09-16 2010-09-15 法国电信 处理有噪声的声音信号的方法以及实现该方法的装置
US7844059B2 (en) * 2005-03-16 2010-11-30 Microsoft Corporation Dereverberation of multi-channel audio streams
KR100684029B1 (ko) * 2005-09-13 2007-02-20 엘지전자 주식회사 푸리에 변환을 이용한 배음 생성 방법 및 이를 위한 장치,다운 샘플링에 의한 배음 생성 방법 및 이를 위한 장치와소리 보정 방법 및 이를 위한 장치
CN1822092B (zh) * 2006-03-28 2010-05-26 北京中星微电子有限公司 一种消除语音输入中背景噪声的方法及其装置
JP4493690B2 (ja) * 2007-11-30 2010-06-30 株式会社神戸製鋼所 目的音抽出装置，目的音抽出プログラム，目的音抽出方法
US9142221B2 (en) * 2008-04-07 2015-09-22 Cambridge Silicon Radio Limited Noise reduction
JP2010122617A (ja) 2008-11-21 2010-06-03 Yamaha Corp ノイズゲート、及び収音装置
CN101599274B (zh) * 2009-06-26 2012-03-28 瑞声声学科技(深圳)有限公司 语音增强的方法
RU2587652C2 (ru) * 2010-11-10 2016-06-20 Конинклейке Филипс Электроникс Н.В. Способ и устройство для оценки структуры в сигнале
WO2012128678A1 (fr) * 2011-03-21 2012-09-27 Telefonaktiebolaget L M Ericsson (Publ) Procédé et arrangement pour atténuer les fréquences dominantes dans un signal audio
EP2689419B1 (fr) * 2011-03-21 2015-03-04 Telefonaktiebolaget L M Ericsson (PUBL) Procédé et arrangement pour atténuer les fréquences dominantes dans un signal audio
US9173025B2 (en) * 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US9384759B2 (en) * 2012-03-05 2016-07-05 Malaspina Labs (Barbados) Inc. Voice activity detection and pitch estimation
JP6064370B2 (ja) * 2012-05-29 2017-01-25 沖電気工業株式会社 雑音抑圧装置、方法及びプログラム
CN105137373B (zh) * 2015-07-23 2017-12-08 厦门大学 一种指数信号的去噪方法
EP3791565B1 (fr) 2018-05-09 2023-08-23 Nureva Inc. Procédé et appareil utilisant des informations d'estimation d'écho résiduel pour déduire des paramètres de réduction d'écho secondaire
US10957342B2 (en) * 2019-01-16 2021-03-23 Cirrus Logic, Inc. Noise cancellation
CN111917926B (zh) * 2019-05-09 2021-08-06 上海触乐信息科技有限公司 一种通信终端中的回声消除方法、装置及终端设备
US10839821B1 (en) * 2019-07-23 2020-11-17 Bose Corporation Systems and methods for estimating noise
CN111161749B (zh) * 2019-12-26 2023-05-23 佳禾智能科技股份有限公司 可变帧长的拾音方法、电子设备、计算机可读存储介质
CN116368565A (zh) * 2020-11-26 2023-06-30 瑞典爱立信有限公司 使用噪声信号比的误差隐藏单元中的噪声抑制逻辑
KR20230018838A (ko) * 2021-07-30 2023-02-07 한국전자통신연구원 벡터 양자화된 잔여오차 특징을 사용한 오디오 부호화/복호화 장치 및 그 방법

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JP2576690B2 (ja) * 1993-03-11 1997-01-29 日本電気株式会社 ディジタル携帯電話機
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JPH09212196A (ja) * 1996-01-31 1997-08-15 Nippon Telegr & Teleph Corp <Ntt> 雑音抑圧装置
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US6070137A (en) * 1998-01-07 2000-05-30 Ericsson Inc. Integrated frequency-domain voice coding using an adaptive spectral enhancement filter
US6459914B1 (en) * 1998-05-27 2002-10-01 Telefonaktiebolaget Lm Ericsson (Publ) Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging
US6175602B1 (en) * 1998-05-27 2001-01-16 Telefonaktiebolaget Lm Ericsson (Publ) Signal noise reduction by spectral subtraction using linear convolution and casual filtering
AU5472199A (en) * 1999-08-10 2001-03-05 Telogy Networks, Inc. Background energy estimation

Also Published As

Publication number Publication date
ATE251328T1 (de) 2003-10-15
KR100595799B1 (ko) 2006-07-03
HK1039649A1 (en) 2002-05-03
US6459914B1 (en) 2002-10-01
CN1134766C (zh) 2004-01-14
BR9910740A (pt) 2001-02-13
JP2002517020A (ja) 2002-06-11
IL139858A0 (en) 2002-02-10
AU4664399A (en) 1999-12-13
DE69911768D1 (de) 2003-11-06
KR20010043833A (ko) 2001-05-25
MY119850A (en) 2005-07-29
WO1999062053A1 (fr) 1999-12-02
HK1039649B (zh) 2004-12-03
EP1080463B1 (fr) 2003-10-01
IL139858A (en) 2005-08-31
EP1080463A1 (fr) 2001-03-07
CN1310840A (zh) 2001-08-29

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