EP1120775A4 - NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER - Google Patents

NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER

Info

Publication number
EP1120775A4
EP1120775A4 EP00935511A EP00935511A EP1120775A4 EP 1120775 A4 EP1120775 A4 EP 1120775A4 EP 00935511 A EP00935511 A EP 00935511A EP 00935511 A EP00935511 A EP 00935511A EP 1120775 A4 EP1120775 A4 EP 1120775A4
Authority
EP
European Patent Office
Prior art keywords
signal encoder
voice signal
noise signal
noise
voice
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.)
Withdrawn
Application number
EP00935511A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1120775A1 (en
Inventor
Koji Yoshida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1120775A1 publication Critical patent/EP1120775A1/en
Publication of EP1120775A4 publication Critical patent/EP1120775A4/en
Withdrawn legal-status Critical Current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
    • G10L19/012—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
    • 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)
  • Computational Linguistics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP00935511A 1999-06-15 2000-06-01 NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER Withdrawn EP1120775A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16854599A JP4464484B2 (ja) 1999-06-15 1999-06-15 雑音信号符号化装置および音声信号符号化装置
JP16854599 1999-06-15
PCT/JP2000/003526 WO2000077774A1 (fr) 1999-06-15 2000-06-01 Codeur de signaux de bruit et codeur de signaux vocaux

Publications (2)

Publication Number Publication Date
EP1120775A1 EP1120775A1 (en) 2001-08-01
EP1120775A4 true EP1120775A4 (en) 2001-09-26

Family

ID=15870014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00935511A Withdrawn EP1120775A4 (en) 1999-06-15 2000-06-01 NOISE SIGNAL ENCODER AND VOICE SIGNAL ENCODER

Country Status (5)

Country Link
EP (1) EP1120775A4 (ja)
JP (1) JP4464484B2 (ja)
CN (1) CN1313983A (ja)
AU (1) AU5103700A (ja)
WO (1) WO2000077774A1 (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4769121B2 (ja) * 2006-05-15 2011-09-07 日本電信電話株式会社 サーバ・クライアント型音声認識方法、装置およびサーバ・クライアント型音声認識プログラム、記録媒体
CN101715643B (zh) * 2007-06-27 2012-12-26 日本电气株式会社 多地点连接装置、信号分析以及装置、其方法及程序
CN101546557B (zh) * 2008-03-28 2011-03-23 展讯通信（上海）有限公司 用于音频内容识别的分类器参数更新方法
EP2380168A1 (en) * 2008-12-19 2011-10-26 Nokia Corporation An apparatus, a method and a computer program for coding
AU2012217215B2 (en) 2011-02-14 2015-05-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (USAC)
EP3503098B1 (en) 2011-02-14 2023-08-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method decoding an audio signal using an aligned look-ahead portion
EP2676268B1 (en) 2011-02-14 2014-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a decoded audio signal in a spectral domain
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
TWI483245B (zh) 2011-02-14 2015-05-01 Fraunhofer Ges Forschung 利用重疊變換之資訊信號表示技術
TR201903388T4 (tr) 2011-02-14 2019-04-22 Fraunhofer Ges Forschung Bir ses sinyalinin parçalarının darbe konumlarının şifrelenmesi ve çözülmesi.
MY165853A (en) 2011-02-14 2018-05-18 Fraunhofer Ges Forschung Linear prediction based coding scheme using spectral domain noise shaping
RU2586838C2 (ru) * 2011-02-14 2016-06-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Аудиокодек, использующий синтез шума в течение неактивной фазы
EP2676270B1 (en) 2011-02-14 2017-02-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Coding a portion of an audio signal using a transient detection and a quality result
CN104469250B (zh) * 2013-09-23 2019-07-26 联想(北京)有限公司 一种信息处理方法及电子设备
EP3010017A1 (en) * 2014-10-14 2016-04-20 Thomson Licensing Method and apparatus for separating speech data from background data in audio communication
CN106971741B (zh) * 2016-01-14 2020-12-01 芋头科技（杭州）有限公司 实时将语音进行分离的语音降噪的方法及系统
KR102650850B1 (ko) 2016-05-30 2024-03-26 소니그룹주식회사 영상 음향 처리 장치 및 방법, 및 프로그램이 저장된 컴퓨터 판독 가능한 기록 매체

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1039898A (ja) * 1996-07-22 1998-02-13 Nec Corp 音声信号伝送方法及び音声符号復号化システム
EP0843301A2 (en) * 1996-11-15 1998-05-20 Nokia Mobile Phones Ltd. Methods for generating comfort noise during discontinous transmission
US5809460A (en) * 1993-11-05 1998-09-15 Nec Corporation Speech decoder having an interpolation circuit for updating background noise
WO2000075919A1 (en) * 1999-06-07 2000-12-14 Ericsson, Inc. Methods and apparatus for generating comfort noise using parametric noise model statistics

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2692104B2 (ja) * 1988-02-12 1997-12-17 株式会社日立製作所 音声多重化システム
JP3173639B2 (ja) * 1995-05-26 2001-06-04 株式会社エヌ・ティ・ティ・ドコモ 背景雑音更新システムおよび方法
JP2806308B2 (ja) * 1995-06-30 1998-09-30 日本電気株式会社 音声復号化装置
JP3575967B2 (ja) * 1996-12-02 2004-10-13 沖電気工業株式会社 音声通信システムおよび音声通信方法
JP3119204B2 (ja) * 1997-06-27 2000-12-18 日本電気株式会社 音声符号化装置
JP2000122698A (ja) * 1998-10-19 2000-04-28 Mitsubishi Electric Corp 音声符号化装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809460A (en) * 1993-11-05 1998-09-15 Nec Corporation Speech decoder having an interpolation circuit for updating background noise
JPH1039898A (ja) * 1996-07-22 1998-02-13 Nec Corp 音声信号伝送方法及び音声符号復号化システム
US5953698A (en) * 1996-07-22 1999-09-14 Nec Corporation Speech signal transmission with enhanced background noise sound quality
EP0843301A2 (en) * 1996-11-15 1998-05-20 Nokia Mobile Phones Ltd. Methods for generating comfort noise during discontinous transmission
WO2000075919A1 (en) * 1999-06-07 2000-12-14 Ericsson, Inc. Methods and apparatus for generating comfort noise using parametric noise model statistics

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30) *
See also references of WO0077774A1 *

Also Published As

Publication number Publication date
AU5103700A (en) 2001-01-02
CN1313983A (zh) 2001-09-19
JP2000357000A (ja) 2000-12-26
WO2000077774A1 (fr) 2000-12-21
EP1120775A1 (en) 2001-08-01
JP4464484B2 (ja) 2010-05-19

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