SE9903160D0 - Digital filter design method and apparatus - Google Patents

Digital filter design method and apparatus

Info

Publication number
SE9903160D0
SE9903160D0 SE9903160A SE9903160A SE9903160D0 SE 9903160 D0 SE9903160 D0 SE 9903160D0 SE 9903160 A SE9903160 A SE 9903160A SE 9903160 A SE9903160 A SE 9903160A SE 9903160 D0 SE9903160 D0 SE 9903160D0
Authority
SE
Sweden
Prior art keywords
spectral density
power spectral
density estimate
piece
noisy speech
Prior art date
Application number
SE9903160A
Other languages
English (en)
Other versions
SE9903160L (sv
SE514875C2 (sv
Inventor
Anders Eriksson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9903160A priority Critical patent/SE514875C2/sv
Publication of SE9903160D0 publication Critical patent/SE9903160D0/sv
Priority to EP00957195A priority patent/EP1221197B1/en
Priority to AU68848/00A priority patent/AU6884800A/en
Priority to CN00812582.1A priority patent/CN1197243C/zh
Priority to PCT/SE2000/001609 priority patent/WO2001018961A1/en
Priority to AT00957195T priority patent/ATE445260T1/de
Priority to DE60043115T priority patent/DE60043115D1/de
Priority to US09/656,295 priority patent/US6564184B1/en
Publication of SE9903160L publication Critical patent/SE9903160L/sv
Publication of SE514875C2 publication Critical patent/SE514875C2/sv

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Picture Signal Circuits (AREA)
SE9903160A 1999-09-07 1999-09-07 Förfarande och anordning för konstruktion av digitala filter SE514875C2 (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9903160A SE514875C2 (sv) 1999-09-07 1999-09-07 Förfarande och anordning för konstruktion av digitala filter
EP00957195A EP1221197B1 (en) 1999-09-07 2000-08-23 Digital filter design method and apparatus for noise suppression by spectral substraction
AU68848/00A AU6884800A (en) 1999-09-07 2000-08-23 Digital filter design method and apparatus for noise suppression by spectral substraction
CN00812582.1A CN1197243C (zh) 1999-09-07 2000-08-23 一种利用频谱减法抑制噪声的数字滤波器设计方法和装置
PCT/SE2000/001609 WO2001018961A1 (en) 1999-09-07 2000-08-23 Digital filter design method and apparatus for noise suppression by spectral substraction
AT00957195T ATE445260T1 (de) 1999-09-07 2000-08-23 Digitales filter und entwicklungsmethode zur geräuschunterdrückung mittels spektralersubtraktion
DE60043115T DE60043115D1 (de) 1999-09-07 2000-08-23 Digitales filter und entwicklungsmethode zur geräuschunterdrückung mittels spektralersubtraktion
US09/656,295 US6564184B1 (en) 1999-09-07 2000-09-06 Digital filter design method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9903160A SE514875C2 (sv) 1999-09-07 1999-09-07 Förfarande och anordning för konstruktion av digitala filter

Publications (3)

Publication Number Publication Date
SE9903160D0 true SE9903160D0 (sv) 1999-09-07
SE9903160L SE9903160L (sv) 2001-03-08
SE514875C2 SE514875C2 (sv) 2001-05-07

Family

ID=20416885

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9903160A SE514875C2 (sv) 1999-09-07 1999-09-07 Förfarande och anordning för konstruktion av digitala filter

Country Status (8)

Country Link
US (1) US6564184B1 (sv)
EP (1) EP1221197B1 (sv)
CN (1) CN1197243C (sv)
AT (1) ATE445260T1 (sv)
AU (1) AU6884800A (sv)
DE (1) DE60043115D1 (sv)
SE (1) SE514875C2 (sv)
WO (1) WO2001018961A1 (sv)

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US6859531B1 (en) * 2000-09-15 2005-02-22 Intel Corporation Residual echo estimation for echo cancellation
EP1278185A3 (en) * 2001-07-13 2005-02-09 Alcatel Method for improving noise reduction in speech transmission
US7187719B2 (en) * 2003-06-18 2007-03-06 Mindspeed Technologies, Inc. Method and system for data rate optimization in a digital communication system
CN100336307C (zh) * 2005-04-28 2007-09-05 北京航空航天大学 接收机射频系统电路内部噪声的分配方法
CN100370519C (zh) * 2005-10-17 2008-02-20 西安交通大学 一种增强电子喉语音的方法及其系统
US20070237341A1 (en) * 2006-04-05 2007-10-11 Creative Technology Ltd Frequency domain noise attenuation utilizing two transducers
US8761387B2 (en) 2006-05-04 2014-06-24 Mindspeed Technologies, Inc. Analog transmit crosstalk canceller
US8300849B2 (en) * 2007-11-06 2012-10-30 Microsoft Corporation Perceptually weighted digital audio level compression
US9177566B2 (en) 2007-12-20 2015-11-03 Telefonaktiebolaget L M Ericsson (Publ) Noise suppression method and apparatus
KR20090110244A (ko) * 2008-04-17 2009-10-21 삼성전자주식회사 오디오 시맨틱 정보를 이용한 오디오 신호의 부호화/복호화 방법 및 그 장치
CN101615538B (zh) * 2008-06-27 2013-01-30 上海亿盟电气自动化技术有限公司 一种脱扣器滤波方法
CN101320566B (zh) * 2008-06-30 2010-10-20 中国人民解放军第四军医大学 基于多带谱减法的非空气传导语音增强方法
CN101778183B (zh) * 2009-01-13 2013-06-05 华为终端有限公司 一种残留回声抑制方法及设备
US8229126B2 (en) * 2009-03-13 2012-07-24 Harris Corporation Noise error amplitude reduction
US9087518B2 (en) * 2009-12-25 2015-07-21 Mitsubishi Electric Corporation Noise removal device and noise removal program
US8600312B2 (en) * 2010-01-25 2013-12-03 Qualcomm Incorporated Method and apparatus for spectral sensing
CN102158197A (zh) * 2010-02-11 2011-08-17 北京国能子金电气技术有限公司 变频率信号的自适应低通数字滤波器和方法
US9648421B2 (en) 2011-12-14 2017-05-09 Harris Corporation Systems and methods for matching gain levels of transducers
CN103021420B (zh) * 2012-12-04 2015-02-25 中国科学院自动化研究所 一种基于相位调整和幅值补偿的多子带谱减法的语音增强方法
CN103632677B (zh) * 2013-11-27 2016-09-28 腾讯科技(成都)有限公司 带噪语音信号处理方法、装置及服务器
CN104143337B (zh) * 2014-01-08 2015-12-09 腾讯科技（深圳）有限公司 一种提高音频信号音质的方法和装置
EP3125429A1 (en) * 2015-07-28 2017-02-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Partitioned block frequency domain adaptive filter device comprising adaptation modules and correction modules
CN105812995B (zh) * 2016-03-09 2018-11-09 西安航空学院 一种噪音滤除方法和装置
CN105877706A (zh) * 2016-03-31 2016-08-24 济南大学 一种基于改进谱减法的心音增强方法
CN105827218B (zh) * 2016-05-17 2018-04-06 中国电子科技集团公司第四十一研究所 一种对fft数据实施的噪声带限滤波方法
US10481831B2 (en) * 2017-10-02 2019-11-19 Nuance Communications, Inc. System and method for combined non-linear and late echo suppression
EP3667420A1 (en) * 2018-12-13 2020-06-17 ASML Netherlands B.V. Method of measuring a parameter of a lithographic process, metrology apparatus
CN111239839B (zh) * 2020-02-10 2021-04-09 山东大学 一种针对频率域电磁法的频谱密度计算方法及装置

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US4658426A (en) * 1985-10-10 1987-04-14 Harold Antin Adaptive noise suppressor
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
DK173156B1 (da) 1994-10-05 2000-02-14 Damixa As Etgrebsblandingsarmatur
SE505156C2 (sv) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Förfarande för bullerundertryckning genom spektral subtraktion
FI100840B (sv) 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Brusdämpare och förfarande för dämpning av bakgrundsbrus i brusigt tal samt en mobilteleapparat
US5729694A (en) * 1996-02-06 1998-03-17 The Regents Of The University Of California Speech coding, reconstruction and recognition using acoustics and electromagnetic waves
FR2748342B1 (fr) * 1996-05-06 1998-07-17 France Telecom Procede et dispositif de filtrage par egalisation d'un signal de parole, mettant en oeuvre un modele statistique de ce signal

Also Published As

Publication number Publication date
EP1221197A1 (en) 2002-07-10
ATE445260T1 (de) 2009-10-15
EP1221197B1 (en) 2009-10-07
DE60043115D1 (de) 2009-11-19
AU6884800A (en) 2001-04-10
SE9903160L (sv) 2001-03-08
CN1197243C (zh) 2005-04-13
WO2001018961A1 (en) 2001-03-15
US6564184B1 (en) 2003-05-13
CN1373930A (zh) 2002-10-09
SE514875C2 (sv) 2001-05-07

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