ATE297590T1 - Exponentielle echo- und geräuschabsenkung in sprachpausen - Google Patents

Exponentielle echo- und geräuschabsenkung in sprachpausen

Info

Publication number
ATE297590T1
ATE297590T1 AT00124577T AT00124577T ATE297590T1 AT E297590 T1 ATE297590 T1 AT E297590T1 AT 00124577 T AT00124577 T AT 00124577T AT 00124577 T AT00124577 T AT 00124577T AT E297590 T1 ATE297590 T1 AT E297590T1
Authority
AT
Austria
Prior art keywords
noise reduction
reduction during
during speech
echo
exponential
Prior art date
Application number
AT00124577T
Other languages
English (en)
Inventor
Hans Juergen Matt
Michael Walker
Michael Maurer
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Application granted granted Critical
Publication of ATE297590T1 publication Critical patent/ATE297590T1/de

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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
AT00124577T 1999-11-27 2000-11-10 Exponentielle echo- und geräuschabsenkung in sprachpausen ATE297590T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19957221A DE19957221A1 (de) 1999-11-27 1999-11-27 Exponentielle Echo- und Geräuschabsenkung in Sprachpausen

Publications (1)

Publication Number Publication Date
ATE297590T1 true ATE297590T1 (de) 2005-06-15

Family

ID=7930611

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00124577T ATE297590T1 (de) 1999-11-27 2000-11-10 Exponentielle echo- und geräuschabsenkung in sprachpausen

Country Status (6)

Country Link
US (1) US6999920B1 (de)
EP (1) EP1103956B1 (de)
JP (1) JP2001202100A (de)
KR (1) KR20010051980A (de)
AT (1) ATE297590T1 (de)
DE (2) DE19957221A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10030926A1 (de) * 2000-06-24 2002-01-03 Alcatel Sa Störsignalabhängige adaptive Echounterdrückung
US7428223B2 (en) * 2001-09-26 2008-09-23 Siemens Corporation Method for background noise reduction and performance improvement in voice conferencing over packetized networks
DE10150519B4 (de) * 2001-10-12 2014-01-09 Hewlett-Packard Development Co., L.P. Verfahren und Anordnung zur Sprachverarbeitung
US7158572B2 (en) * 2002-02-14 2007-01-02 Tellabs Operations, Inc. Audio enhancement communication techniques
DE10216322B4 (de) * 2002-04-13 2004-07-15 Güttler, Gerhard, Prof. Dr. Stimmenkonverter
US7366295B2 (en) * 2003-08-14 2008-04-29 John David Patton Telephone signal generator and methods and devices using the same
US8394114B2 (en) * 2003-09-26 2013-03-12 Medtronic, Inc. Surgical connection apparatus and methods
US20060104460A1 (en) * 2004-11-18 2006-05-18 Motorola, Inc. Adaptive time-based noise suppression
JP4283212B2 (ja) 2004-12-10 2009-06-24 インターナショナル・ビジネス・マシーンズ・コーポレーション 雑音除去装置、雑音除去プログラム、及び雑音除去方法
US7599357B1 (en) * 2004-12-14 2009-10-06 At&T Corp. Method and apparatus for detecting and correcting electrical interference in a conference call
US7599719B2 (en) 2005-02-14 2009-10-06 John D. Patton Telephone and telephone accessory signal generator and methods and devices using the same
JP5065913B2 (ja) 2005-02-16 2012-11-07 株式会社日立ハイテクノロジーズ キャピラリ照明における屈折率整合
JP4562573B2 (ja) * 2005-03-30 2010-10-13 ローランド株式会社 ハウリング防止装置
US8509450B2 (en) * 2010-08-23 2013-08-13 Cambridge Silicon Radio Limited Dynamic audibility enhancement
KR102413692B1 (ko) 2015-07-24 2022-06-27 삼성전자주식회사 음성 인식을 위한 음향 점수 계산 장치 및 방법, 음성 인식 장치 및 방법, 전자 장치
KR102192678B1 (ko) 2015-10-16 2020-12-17 삼성전자주식회사 음향 모델 입력 데이터의 정규화 장치 및 방법과, 음성 인식 장치
GB2551499B (en) * 2016-06-17 2021-05-12 Toshiba Kk A speech processing system and speech processing method
CN107274909A (zh) * 2017-06-16 2017-10-20 深圳市华域无线技术股份有限公司 一种语音识别中的主动式本机音频消除方法
CN111128213B (zh) * 2019-12-10 2022-09-27 展讯通信（上海）有限公司 一种分频段进行处理的噪声抑制方法及其系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786760A (en) * 1904-06-15 1905-04-04 Hartshorn Bros Couch.
NL8000361A (nl) * 1980-01-21 1981-08-17 Philips Nv Inrichting en werkwijze voor het opwekken van een spraaksignaal.
JPS57212831A (en) * 1981-06-24 1982-12-27 Kokusai Denshin Denwa Co Ltd <Kdd> Echo controlling system
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
JP3080641B2 (ja) * 1990-07-24 2000-08-28 株式会社東芝 エコーキャンセラ
US5369711A (en) * 1990-08-31 1994-11-29 Bellsouth Corporation Automatic gain control for a headset
US5537509A (en) * 1990-12-06 1996-07-16 Hughes Electronics Comfort noise generation for digital communication systems
DE4229912A1 (de) * 1992-09-08 1994-03-10 Sel Alcatel Ag Verfahren zum Verbessern der Übertragungseigenschaften einer elektroakustischen Anlage
US5533133A (en) * 1993-03-26 1996-07-02 Hughes Aircraft Company Noise suppression in digital voice communications systems
JP3152171B2 (ja) * 1997-06-16 2001-04-03 日本電気株式会社 適応フィルタ及びステップサイズ制御方法及びプログラムを記録した記録媒体
US6549587B1 (en) * 1999-09-20 2003-04-15 Broadcom Corporation Voice and data exchange over a packet based network with timing recovery

Also Published As

Publication number Publication date
EP1103956A2 (de) 2001-05-30
DE19957221A1 (de) 2001-05-31
DE50010504D1 (de) 2005-07-14
US6999920B1 (en) 2006-02-14
EP1103956A3 (de) 2001-12-05
JP2001202100A (ja) 2001-07-27
EP1103956B1 (de) 2005-06-08
KR20010051980A (ko) 2001-06-25

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Legal Events

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