DE60034026D1 - Sprachverbesserung mit durch sprachaktivität gesteuerte begrenzungen des gewinnfaktors - Google Patents

Sprachverbesserung mit durch sprachaktivität gesteuerte begrenzungen des gewinnfaktors

Info

Publication number
DE60034026D1
DE60034026D1 DE60034026T DE60034026T DE60034026D1 DE 60034026 D1 DE60034026 D1 DE 60034026D1 DE 60034026 T DE60034026 T DE 60034026T DE 60034026 T DE60034026 T DE 60034026T DE 60034026 D1 DE60034026 D1 DE 60034026D1
Authority
DE
Germany
Prior art keywords
speech
lower limit
data
gain
noise
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
DE60034026T
Other languages
English (en)
Other versions
DE60034026T2 (de
Inventor
Richard Vandervoort Cox
Ranier Martin
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE60034026D1 publication Critical patent/DE60034026D1/de
Application granted granted Critical
Publication of DE60034026T2 publication Critical patent/DE60034026T2/de
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
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Machine Translation (AREA)
  • Telephone Function (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE60034026T 1999-02-09 2000-02-09 Sprachverbesserung mit durch sprachaktivität gesteuerte begrenzungen des gewinnfaktors Expired - Lifetime DE60034026T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11927999P 1999-02-09 1999-02-09
US119279P 1999-02-09
US09/499,985 US6604071B1 (en) 1999-02-09 2000-02-08 Speech enhancement with gain limitations based on speech activity
US499985P 2000-02-08
PCT/US2000/003372 WO2000048171A1 (en) 1999-02-09 2000-02-09 Speech enhancement with gain limitations based on speech activity

Publications (2)

Publication Number Publication Date
DE60034026D1 true DE60034026D1 (de) 2007-05-03
DE60034026T2 DE60034026T2 (de) 2007-12-13

Family

ID=26817182

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60034026T Expired - Lifetime DE60034026T2 (de) 1999-02-09 2000-02-09 Sprachverbesserung mit durch sprachaktivität gesteuerte begrenzungen des gewinnfaktors

Country Status (11)

Country Link
US (2) US6604071B1 (de)
EP (2) EP1157377B1 (de)
JP (2) JP4173641B2 (de)
KR (2) KR100828962B1 (de)
AT (1) ATE357724T1 (de)
BR (1) BR0008033A (de)
CA (2) CA2476248C (de)
DE (1) DE60034026T2 (de)
DK (1) DK1157377T3 (de)
ES (1) ES2282096T3 (de)
WO (1) WO2000048171A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1149534C (zh) * 1998-12-07 2004-05-12 三菱电机株式会社 声音解码装置和声音解码方法
GB2349259B (en) * 1999-04-23 2003-11-12 Canon Kk Speech processing apparatus and method
FR2797343B1 (fr) * 1999-08-04 2001-10-05 Matra Nortel Communications Procede et dispositif de detection d'activite vocale
KR100304666B1 (ko) * 1999-08-28 2001-11-01 윤종용 음성 향상 방법
JP3566197B2 (ja) 2000-08-31 2004-09-15 松下電器産業株式会社 雑音抑圧装置及び雑音抑圧方法
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
WO2002082427A1 (en) * 2001-04-09 2002-10-17 Koninklijke Philips Electronics N.V. Speech enhancement device
DE10150519B4 (de) * 2001-10-12 2014-01-09 Hewlett-Packard Development Co., L.P. Verfahren und Anordnung zur Sprachverarbeitung
EP1363271A1 (de) 2002-05-08 2003-11-19 Sap Ag Verfahren und System zur Verarbeitung und Speicherung von Sprachinformationen eines Dialogs
DE10220524B4 (de) 2002-05-08 2006-08-10 Sap Ag Verfahren und System zur Verarbeitung von Sprachdaten und zur Erkennung einer Sprache
US7155385B2 (en) * 2002-05-16 2006-12-26 Comerica Bank, As Administrative Agent Automatic gain control for adjusting gain during non-speech portions
US7146316B2 (en) * 2002-10-17 2006-12-05 Clarity Technologies, Inc. Noise reduction in subbanded speech signals
JP4336759B2 (ja) 2002-12-17 2009-09-30 日本電気株式会社 光分散フィルタ
JP4583781B2 (ja) * 2003-06-12 2010-11-17 アルパイン株式会社 音声補正装置
ATE316283T1 (de) * 2003-11-27 2006-02-15 Cit Alcatel Vorrichtung zur verbesserung der spracherkennung
DE602004008973T2 (de) * 2004-05-14 2008-05-15 Loquendo-Società per Azioni Rauschminderung für die automatische spracherkennung
US7649988B2 (en) * 2004-06-15 2010-01-19 Acoustic Technologies, Inc. Comfort noise generator using modified Doblinger noise estimate
KR100677126B1 (ko) * 2004-07-27 2007-02-02 삼성전자주식회사 레코더 기기의 잡음 제거 장치 및 그 방법
GB2429139B (en) * 2005-08-10 2010-06-16 Zarlink Semiconductor Inc A low complexity noise reduction method
KR100751927B1 (ko) * 2005-11-11 2007-08-24 고려대학교 산학협력단 멀티음성채널 음성신호의 적응적 잡음제거를 위한 전처리 방법 및 장치
US7778828B2 (en) 2006-03-15 2010-08-17 Sasken Communication Technologies Ltd. Method and system for automatic gain control of a speech signal
JP4836720B2 (ja) * 2006-09-07 2011-12-14 株式会社東芝 ノイズサプレス装置
US20080208575A1 (en) * 2007-02-27 2008-08-28 Nokia Corporation Split-band encoding and decoding of an audio signal
US7885810B1 (en) 2007-05-10 2011-02-08 Mediatek Inc. Acoustic signal enhancement method and apparatus
US20090010453A1 (en) * 2007-07-02 2009-01-08 Motorola, Inc. Intelligent gradient noise reduction system
JP5302968B2 (ja) 2007-09-12 2013-10-02 ドルビー ラボラトリーズ ライセンシング コーポレイション 音声明瞭化を伴うスピーチ改善
CN100550133C (zh) 2008-03-20 2009-10-14 华为技术有限公司 一种语音信号处理方法及装置
US9336785B2 (en) * 2008-05-12 2016-05-10 Broadcom Corporation Compression for speech intelligibility enhancement
US9197181B2 (en) * 2008-05-12 2015-11-24 Broadcom Corporation Loudness enhancement system and method
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US8914282B2 (en) * 2008-09-30 2014-12-16 Alon Konchitsky Wind noise reduction
US20100082339A1 (en) * 2008-09-30 2010-04-01 Alon Konchitsky Wind Noise Reduction
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
KR101211059B1 (ko) 2010-12-21 2012-12-11 전자부품연구원 보컬 멜로디 강화 장치 및 방법
US9210506B1 (en) * 2011-09-12 2015-12-08 Audyssey Laboratories, Inc. FFT bin based signal limiting
GB2523984B (en) 2013-12-18 2017-07-26 Cirrus Logic Int Semiconductor Ltd Processing received speech data
JP6361156B2 (ja) * 2014-02-10 2018-07-25 沖電気工業株式会社 雑音推定装置、方法及びプログラム
US12531078B2 (en) * 2020-03-30 2026-01-20 Harman Becker Automotive Systems Gmbh Noise suppression for speech enhancement

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118473C2 (de) 1981-05-09 1987-02-05 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Aufbereitung elektrischer Signale mit einer digitalen Filteranordnung
US4956808A (en) * 1985-01-07 1990-09-11 International Business Machines Corporation Real time data transformation and transmission overlapping device
JP2884163B2 (ja) * 1987-02-20 1999-04-19 富士通株式会社 符号化伝送装置
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
IL84948A0 (en) 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
GB8801014D0 (en) * 1988-01-18 1988-02-17 British Telecomm Noise reduction
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5297236A (en) * 1989-01-27 1994-03-22 Dolby Laboratories Licensing Corporation Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder
BR9007062A (pt) * 1989-01-27 1991-10-08 Dolby Lab Licensing Corp Codificador,descodificador e codificador/descodificador de transformada de retardo de tempo baixo para audio de alta qualidade
DE3902948A1 (de) * 1989-02-01 1990-08-09 Telefunken Fernseh & Rundfunk Verfahren zur uebertragung eines signals
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
ES2137355T3 (es) * 1993-02-12 1999-12-16 British Telecomm Reduccion de ruido.
US5572621A (en) * 1993-09-21 1996-11-05 U.S. Philips Corporation Speech signal processing device with continuous monitoring of signal-to-noise ratio
US5485515A (en) 1993-12-29 1996-01-16 At&T Corp. Background noise compensation in a telephone network
US5715365A (en) * 1994-04-04 1998-02-03 Digital Voice Systems, Inc. Estimation of excitation parameters
JPH08237130A (ja) * 1995-02-23 1996-09-13 Sony Corp 信号符号化方法及び装置、並びに記録媒体
US5706395A (en) * 1995-04-19 1998-01-06 Texas Instruments Incorporated Adaptive weiner filtering using a dynamic suppression factor
FI100840B (fi) 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
WO1998006090A1 (en) * 1996-08-02 1998-02-12 Universite De Sherbrooke Speech/audio coding with non-linear spectral-amplitude transformation
US5903866A (en) * 1997-03-10 1999-05-11 Lucent Technologies Inc. Waveform interpolation speech coding using splines
US6351731B1 (en) * 1998-08-21 2002-02-26 Polycom, Inc. Adaptive filter featuring spectral gain smoothing and variable noise multiplier for noise reduction, and method therefor

Also Published As

Publication number Publication date
WO2000048171A1 (en) 2000-08-17
CA2476248A1 (en) 2000-08-17
KR100752529B1 (ko) 2007-08-29
JP4173641B2 (ja) 2008-10-29
US20020029141A1 (en) 2002-03-07
CA2476248C (en) 2009-10-06
KR20060110377A (ko) 2006-10-24
WO2000048171A8 (en) 2001-04-05
EP1724758A3 (de) 2007-08-01
EP1157377A1 (de) 2001-11-28
HK1098241A1 (en) 2007-07-13
CA2362584C (en) 2008-01-08
DE60034026T2 (de) 2007-12-13
EP1157377B1 (de) 2007-03-21
DK1157377T3 (da) 2007-04-10
US6542864B2 (en) 2003-04-01
KR20010102017A (ko) 2001-11-15
ATE357724T1 (de) 2007-04-15
WO2000048171A9 (en) 2001-09-20
EP1724758A2 (de) 2006-11-22
JP2002536707A (ja) 2002-10-29
EP1724758B1 (de) 2016-04-27
ES2282096T3 (es) 2007-10-16
BR0008033A (pt) 2002-01-22
JP2007004202A (ja) 2007-01-11
US6604071B1 (en) 2003-08-05
JP4512574B2 (ja) 2010-07-28
KR100828962B1 (ko) 2008-05-14
CA2362584A1 (en) 2000-08-17

Similar Documents

Publication Publication Date Title
DE60034026D1 (de) Sprachverbesserung mit durch sprachaktivität gesteuerte begrenzungen des gewinnfaktors
Cohen Optimal speech enhancement under signal presence uncertainty using log-spectral amplitude estimator
Cho et al. Improved voice activity detection based on a smoothed statistical likelihood ratio
EP1008140B1 (de) Wellenform-basierter periodizitätsdetektor
EP1706864B1 (de) Rechnerisch effizienter hintergrundrauschunterdrücker für die sprachcodierung und spracherkennung
CN1286788A (zh) 关于低比特率语音编码器的噪声抑制
JP2004528597A5 (de)
CN1504042A (zh) 数字网络中的音频信号质量增强
WO2000036592A1 (en) Improved noise spectrum tracking for speech enhancement
EP1312075B1 (de) Verfahren zur rauschrobusten klassifikation in der sprachkodierung
AU1620700A (en) Low bit-rate coding of unvoiced segments of speech
US6519559B1 (en) Apparatus and method for the enhancement of signals
JP2020170187A (ja) デジタルオーディオ信号におけるプレエコーを識別し、減衰させる方法及び装置
Fu et al. Perceptual wavelet adaptive denoising of speech.
EP0655731B1 (de) Rauschunterdrückungseinrichtung zur Vorverarbeitung und/oder Nachbearbeitung von Sprachsignalen
WO2003079329A1 (en) Methods and apparatus for blind channel estimation based upon speech correlation structure
JP2005516442A (ja) Ｐｃｍ信号から量子化雑音を除去するための方法及びユニット
JP2005516442A6 (ja) Ｐｃｍ信号から量子化雑音を除去するための方法及びユニット
US6961718B2 (en) Vector estimation system, method and associated encoder
KR100570873B1 (ko) 피시엠엠 기반의 특징 보상을 이용한 음성인식장치 및이의 제어 방법
JPH0946250A (ja) 雑音低減装置、雑音低減方法及びそれを用いた無線通信端末
WO2004097795A2 (en) Adaptive voice enhancement for low bit rate audio coding
JPH10177394A (ja) 音声認識装置
Chang et al. Improved global soft decision using smoothed global likelihood ratio for speech enhancement
JPH11224097A (ja) 音声の有音／休止判定方法およびその装置

Legal Events

Date Code Title Description
8364 No opposition during term of opposition