IL136722A0 - A method for speech coding, method for speech decoding and their apparatuses - Google Patents

A method for speech coding, method for speech decoding and their apparatuses

Info

Publication number
IL136722A0
IL136722A0 IL13672298A IL13672298A IL136722A0 IL 136722 A0 IL136722 A0 IL 136722A0 IL 13672298 A IL13672298 A IL 13672298A IL 13672298 A IL13672298 A IL 13672298A IL 136722 A0 IL136722 A0 IL 136722A0
Authority
IL
Israel
Prior art keywords
speech
apparatuses
decoding
coding
speech coding
Prior art date
Application number
IL13672298A
Other languages
English (en)
Original Assignee
Mitsubishi Electric 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18439687&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL136722(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of IL136722A0 publication Critical patent/IL136722A0/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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/135—Vector sum excited linear prediction [VSELP]
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
    • 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
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/02—Methods for producing synthetic speech; Speech synthesisers
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
IL13672298A 1997-12-24 1998-12-07 A method for speech coding, method for speech decoding and their apparatuses IL136722A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35475497 1997-12-24
PCT/JP1998/005513 WO1999034354A1 (fr) 1997-12-24 1998-12-07 Procede de codage et de decodage sonore et dispositif de codage et de decodage correspondant

Publications (1)

Publication Number Publication Date
IL136722A0 true IL136722A0 (en) 2001-06-14

Family

ID=18439687

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13672298A IL136722A0 (en) 1997-12-24 1998-12-07 A method for speech coding, method for speech decoding and their apparatuses

Country Status (11)

Country Link
US (18) US7092885B1 (enExample)
EP (8) EP1596368B1 (enExample)
JP (2) JP3346765B2 (enExample)
KR (1) KR100373614B1 (enExample)
CN (5) CN1737903A (enExample)
AU (1) AU732401B2 (enExample)
CA (4) CA2636684C (enExample)
DE (3) DE69736446T2 (enExample)
IL (1) IL136722A0 (enExample)
NO (3) NO20003321D0 (enExample)
WO (1) WO1999034354A1 (enExample)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69736446T2 (de) 1997-12-24 2007-03-29 Mitsubishi Denki K.K. Audio Dekodierverfahren und -vorrichtung
WO2001003113A1 (en) * 1999-07-01 2001-01-11 Koninklijke Philips Electronics N.V. Robust speech processing from noisy speech models
AU6203300A (en) * 1999-07-02 2001-01-22 Tellabs Operations, Inc. Coded domain echo control
JP2001075600A (ja) * 1999-09-07 2001-03-23 Mitsubishi Electric Corp 音声符号化装置および音声復号化装置
JP4619549B2 (ja) * 2000-01-11 2011-01-26 パナソニック株式会社 マルチモード音声復号化装置及びマルチモード音声復号化方法
JP4510977B2 (ja) * 2000-02-10 2010-07-28 三菱電機株式会社 音声符号化方法および音声復号化方法とその装置
FR2813722B1 (fr) * 2000-09-05 2003-01-24 France Telecom Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif
JP3404016B2 (ja) * 2000-12-26 2003-05-06 三菱電機株式会社 音声符号化装置及び音声符号化方法
JP3404024B2 (ja) * 2001-02-27 2003-05-06 三菱電機株式会社 音声符号化方法および音声符号化装置
JP3566220B2 (ja) * 2001-03-09 2004-09-15 三菱電機株式会社 音声符号化装置、音声符号化方法、音声復号化装置及び音声復号化方法
KR100467326B1 (ko) * 2002-12-09 2005-01-24 학교법인연세대학교 추가 비트 할당 기법을 이용한 음성 부호화 및 복호화를위한 송수신기
US20040244310A1 (en) * 2003-03-28 2004-12-09 Blumberg Marvin R. Data center
JP4982374B2 (ja) * 2005-05-13 2012-07-25 パナソニック株式会社 音声符号化装置およびスペクトル変形方法
JPWO2007129726A1 (ja) * 2006-05-10 2009-09-17 パナソニック株式会社 音声符号化装置及び音声符号化方法
US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
CN101578508B (zh) * 2006-10-24 2013-07-17 沃伊斯亚吉公司 用于对语音信号中的过渡帧进行编码的方法和设备
EP2538405B1 (en) 2006-11-10 2015-07-08 Panasonic Intellectual Property Corporation of America CELP-coded speech parameter decoding method and apparatus
WO2008072732A1 (ja) * 2006-12-14 2008-06-19 Panasonic Corporation 音声符号化装置および音声符号化方法
US20080249783A1 (en) * 2007-04-05 2008-10-09 Texas Instruments Incorporated Layered Code-Excited Linear Prediction Speech Encoder and Decoder Having Plural Codebook Contributions in Enhancement Layers Thereof and Methods of Layered CELP Encoding and Decoding
WO2009114656A1 (en) * 2008-03-14 2009-09-17 Dolby Laboratories Licensing Corporation Multimode coding of speech-like and non-speech-like signals
US9056697B2 (en) * 2008-12-15 2015-06-16 Exopack, Llc Multi-layered bags and methods of manufacturing the same
US8649456B2 (en) 2009-03-12 2014-02-11 Futurewei Technologies, Inc. System and method for channel information feedback in a wireless communications system
US8675627B2 (en) * 2009-03-23 2014-03-18 Futurewei Technologies, Inc. Adaptive precoding codebooks for wireless communications
US9070356B2 (en) * 2012-04-04 2015-06-30 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
US9208798B2 (en) 2012-04-09 2015-12-08 Board Of Regents, The University Of Texas System Dynamic control of voice codec data rate
KR101812123B1 (ko) 2012-11-15 2017-12-26 가부시키가이샤 엔.티.티.도코모 음성 부호화 장치, 음성 부호화 방법, 음성 부호화 프로그램, 음성 복호 장치, 음성 복호 방법 및 음성 복호 프로그램
ES2646021T3 (es) 2013-06-10 2017-12-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Método y aparato para codificación, procesamiento y decodificación de envolvente de señal de audio mediante modelado de una representación de suma acumulativa que emplea cuantificación de distribución y codificación
MX355091B (es) 2013-10-18 2018-04-04 Fraunhofer Ges Forschung Concepto para codificar una señal de audio y decodificar una señal de audio usando información de conformación espectral relacionada con la voz.
CA2927722C (en) 2013-10-18 2018-08-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information
CN107369455B (zh) * 2014-03-21 2020-12-15 华为技术有限公司 语音频码流的解码方法及装置
PL3139382T3 (pl) 2014-05-01 2019-11-29 Nippon Telegraph & Telephone Urządzenie kodujące sygnał dźwiękowy, sposób kodowania sygnału dźwiękowego, program i nośnik rejestrujący
US9934790B2 (en) 2015-07-31 2018-04-03 Apple Inc. Encoded audio metadata-based equalization
JP6759927B2 (ja) * 2016-09-23 2020-09-23 富士通株式会社 発話評価装置、発話評価方法、および発話評価プログラム
EP3537432A4 (en) * 2016-11-07 2020-06-03 Yamaha Corporation LANGUAGE SYNTHESIS PROCEDURE
US10878831B2 (en) * 2017-01-12 2020-12-29 Qualcomm Incorporated Characteristic-based speech codebook selection
JP6514262B2 (ja) * 2017-04-18 2019-05-15 ローランドディー．ジー．株式会社 インクジェットプリンタおよび印刷方法
CN112201270B (zh) * 2020-10-26 2023-05-23 平安科技（深圳）有限公司 语音噪声的处理方法、装置、计算机设备及存储介质
EP4053750A1 (en) * 2021-03-04 2022-09-07 Tata Consultancy Services Limited Method and system for time series data prediction based on seasonal lags

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197294A (ja) 1987-10-06 1989-04-14 Piran Mirton 木材パルプ等の精製機
JPH0333900A (ja) * 1989-06-30 1991-02-14 Fujitsu Ltd 音声符号化方式
CA2019801C (en) 1989-06-28 1994-05-31 Tomohiko Taniguchi System for speech coding and an apparatus for the same
US5261027A (en) * 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
JP2940005B2 (ja) * 1989-07-20 1999-08-25 日本電気株式会社 音声符号化装置
CA2021514C (en) * 1989-09-01 1998-12-15 Yair Shoham Constrained-stochastic-excitation coding
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
JPH0451200A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化方式
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
US5680508A (en) * 1991-05-03 1997-10-21 Itt Corporation Enhancement of speech coding in background noise for low-rate speech coder
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
JPH05232994A (ja) 1992-02-25 1993-09-10 Oki Electric Ind Co Ltd 統計コードブック
JPH05265496A (ja) * 1992-03-18 1993-10-15 Hitachi Ltd 複数のコードブックを有する音声符号化方法
JP3297749B2 (ja) 1992-03-18 2002-07-02 ソニー株式会社 符号化方法
US5495555A (en) 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
CA2107314C (en) * 1992-09-30 2001-04-17 Katsunori Takahashi Computer system
CA2108623A1 (en) * 1992-11-02 1994-05-03 Yi-Sheng Wang Adaptive pitch pulse enhancer and method for use in a codebook excited linear prediction (celp) search loop
JP2746033B2 (ja) * 1992-12-24 1998-04-28 日本電気株式会社 音声復号化装置
SG43128A1 (en) 1993-06-10 1997-10-17 Oki Electric Ind Co Ltd Code excitation linear predictive (celp) encoder and decoder
JP2624130B2 (ja) 1993-07-29 1997-06-25 日本電気株式会社 音声符号化方式
JPH0749700A (ja) 1993-08-09 1995-02-21 Fujitsu Ltd Ｃｅｌｐ型音声復号器
CA2154911C (en) * 1994-08-02 2001-01-02 Kazunori Ozawa Speech coding device
JPH0869298A (ja) 1994-08-29 1996-03-12 Olympus Optical Co Ltd 再生装置
JP3557662B2 (ja) * 1994-08-30 2004-08-25 ソニー株式会社 音声符号化方法及び音声復号化方法、並びに音声符号化装置及び音声復号化装置
JPH08102687A (ja) * 1994-09-29 1996-04-16 Yamaha Corp 音声送受信方式
JPH08110800A (ja) * 1994-10-12 1996-04-30 Fujitsu Ltd Ａ−ｂ−Ｓ法による高能率音声符号化方式
JP3328080B2 (ja) * 1994-11-22 2002-09-24 沖電気工業株式会社 コード励振線形予測復号器
JPH08179796A (ja) * 1994-12-21 1996-07-12 Sony Corp 音声符号化方法
JP3292227B2 (ja) 1994-12-28 2002-06-17 日本電信電話株式会社 符号励振線形予測音声符号化方法及びその復号化方法
DE69609089T2 (de) * 1995-01-17 2000-11-16 Nec Corp., Tokio/Tokyo Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen
KR0181028B1 (ko) * 1995-03-20 1999-05-01 배순훈 분류 디바이스를 갖는 개선된 비디오 신호 부호화 시스템
JPH08328598A (ja) * 1995-05-26 1996-12-13 Sanyo Electric Co Ltd 音声符号化・復号化装置
US5864797A (en) 1995-05-30 1999-01-26 Sanyo Electric Co., Ltd. Pitch-synchronous speech coding by applying multiple analysis to select and align a plurality of types of code vectors
JP3515216B2 (ja) * 1995-05-30 2004-04-05 三洋電機株式会社 音声符号化装置
JPH0922299A (ja) * 1995-07-07 1997-01-21 Kokusai Electric Co Ltd 音声符号化通信方式
US5819215A (en) * 1995-10-13 1998-10-06 Dobson; Kurt Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
JP3680380B2 (ja) * 1995-10-26 2005-08-10 ソニー株式会社 音声符号化方法及び装置
EP0773533B1 (en) 1995-11-09 2000-04-26 Nokia Mobile Phones Ltd. Method of synthesizing a block of a speech signal in a CELP-type coder
FI100840B (fi) * 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
JP4063911B2 (ja) 1996-02-21 2008-03-19 松下電器産業株式会社 音声符号化装置
JPH09281997A (ja) * 1996-04-12 1997-10-31 Olympus Optical Co Ltd 音声符号化装置
GB2312360B (en) 1996-04-12 2001-01-24 Olympus Optical Co Voice signal coding apparatus
JP3094908B2 (ja) 1996-04-17 2000-10-03 日本電気株式会社 音声符号化装置
KR100389895B1 (ko) * 1996-05-25 2003-11-28 삼성전자주식회사 음성 부호화 및 복호화방법 및 그 장치
JP3364825B2 (ja) 1996-05-29 2003-01-08 三菱電機株式会社 音声符号化装置および音声符号化復号化装置
JPH1020891A (ja) * 1996-07-09 1998-01-23 Sony Corp 音声符号化方法及び装置
JP3707154B2 (ja) * 1996-09-24 2005-10-19 ソニー株式会社 音声符号化方法及び装置
JP3174742B2 (ja) 1997-02-19 2001-06-11 松下電器産業株式会社 Ｃｅｌｐ型音声復号化装置及びｃｅｌｐ型音声復号化方法
EP0994462B1 (en) 1996-11-07 2002-04-03 Matsushita Electric Industrial Co., Ltd Excitation vector generation
US5867289A (en) * 1996-12-24 1999-02-02 International Business Machines Corporation Fault detection for all-optical add-drop multiplexer
SE9700772D0 (sv) 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
US6167375A (en) * 1997-03-17 2000-12-26 Kabushiki Kaisha Toshiba Method for encoding and decoding a speech signal including background noise
US5893060A (en) 1997-04-07 1999-04-06 Universite De Sherbrooke Method and device for eradicating instability due to periodic signals in analysis-by-synthesis speech codecs
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
US6029125A (en) 1997-09-02 2000-02-22 Telefonaktiebolaget L M Ericsson, (Publ) Reducing sparseness in coded speech signals
JPH11119800A (ja) 1997-10-20 1999-04-30 Fujitsu Ltd 音声符号化復号化方法及び音声符号化復号化装置
DE69736446T2 (de) * 1997-12-24 2007-03-29 Mitsubishi Denki K.K. Audio Dekodierverfahren und -vorrichtung
US6415252B1 (en) * 1998-05-28 2002-07-02 Motorola, Inc. Method and apparatus for coding and decoding speech
US6453289B1 (en) * 1998-07-24 2002-09-17 Hughes Electronics Corporation Method of noise reduction for speech codecs
US6104992A (en) * 1998-08-24 2000-08-15 Conexant Systems, Inc. Adaptive gain reduction to produce fixed codebook target signal
US6385573B1 (en) * 1998-08-24 2002-05-07 Conexant Systems, Inc. Adaptive tilt compensation for synthesized speech residual
ITMI20011454A1 (it) 2001-07-09 2003-01-09 Cadif Srl Procedimento impianto e nastro a base di bitume polimero per il riscaldamento superficiale ed ambiantale delle strutture e delle infrastrutt

Also Published As

Publication number Publication date
CA2722196C (en) 2014-10-21
DE69736446T2 (de) 2007-03-29
DE69837822D1 (de) 2007-07-05
EP1052620B1 (en) 2004-07-21
EP1426925B1 (en) 2006-08-02
CN100583242C (zh) 2010-01-20
US7747433B2 (en) 2010-06-29
US20080071525A1 (en) 2008-03-20
CN1143268C (zh) 2004-03-24
EP1052620A1 (en) 2000-11-15
EP2154680A3 (en) 2011-12-21
CA2636684A1 (en) 1999-07-08
US20130024198A1 (en) 2013-01-24
US20080065385A1 (en) 2008-03-13
US7363220B2 (en) 2008-04-22
DE69837822T2 (de) 2008-01-31
US7092885B1 (en) 2006-08-15
US9852740B2 (en) 2017-12-26
US20070118379A1 (en) 2007-05-24
US20080071527A1 (en) 2008-03-20
US20080071524A1 (en) 2008-03-20
US20090094025A1 (en) 2009-04-09
CN1658282A (zh) 2005-08-24
US7742917B2 (en) 2010-06-22
US9263025B2 (en) 2016-02-16
EP1596368B1 (en) 2007-05-23
NO20040046L (no) 2000-06-23
CA2636552C (en) 2011-03-01
US20050256704A1 (en) 2005-11-17
US8447593B2 (en) 2013-05-21
KR20010033539A (ko) 2001-04-25
JP3346765B2 (ja) 2002-11-18
US20110172995A1 (en) 2011-07-14
DE69825180T2 (de) 2005-08-11
JP4916521B2 (ja) 2012-04-11
DE69825180D1 (de) 2004-08-26
EP2154679B1 (en) 2016-09-14
US20080065394A1 (en) 2008-03-13
JP2009134303A (ja) 2009-06-18
US8352255B2 (en) 2013-01-08
EP1052620A4 (en) 2002-08-21
CA2636552A1 (en) 1999-07-08
EP2154681A3 (en) 2011-12-21
US20050171770A1 (en) 2005-08-04
NO20003321L (no) 2000-06-23
NO20003321D0 (no) 2000-06-23
EP1596368A2 (en) 2005-11-16
AU732401B2 (en) 2001-04-26
KR100373614B1 (ko) 2003-02-26
EP2154680B1 (en) 2017-06-28
US7383177B2 (en) 2008-06-03
EP1686563A2 (en) 2006-08-02
US20140180696A1 (en) 2014-06-26
US7937267B2 (en) 2011-05-03
CA2636684C (en) 2009-08-18
EP1686563A3 (en) 2007-02-07
DE69736446D1 (de) 2006-09-14
US8688439B2 (en) 2014-04-01
CA2722196A1 (en) 1999-07-08
US20080071526A1 (en) 2008-03-20
AU1352699A (en) 1999-07-19
CN1737903A (zh) 2006-02-22
EP1426925A1 (en) 2004-06-09
EP1596368A3 (en) 2006-03-15
US7747441B2 (en) 2010-06-29
CN1790485A (zh) 2006-06-21
US8190428B2 (en) 2012-05-29
WO1999034354A1 (fr) 1999-07-08
NO323734B1 (no) 2007-07-02
NO20035109D0 (no) 2003-11-17
EP2154679A2 (en) 2010-02-17
CN1494055A (zh) 2004-05-05
US20120150535A1 (en) 2012-06-14
US20080065375A1 (en) 2008-03-13
EP1596367A2 (en) 2005-11-16
EP2154679A3 (en) 2011-12-21
CA2315699C (en) 2004-11-02
EP2154681A2 (en) 2010-02-17
CA2315699A1 (en) 1999-07-08
CN1283298A (zh) 2001-02-07
US20160163325A1 (en) 2016-06-09
EP2154680A2 (en) 2010-02-17
US20130204615A1 (en) 2013-08-08
NO20035109L (no) 2000-06-23
US7747432B2 (en) 2010-06-29
EP1596367A3 (en) 2006-02-15

Similar Documents

Publication Publication Date Title
IL136722A0 (en) A method for speech coding, method for speech decoding and their apparatuses
AU4319697A (en) A method and apparatus for speech encoding, speech decoding, and speech coding/decoding
EP0709827A3 (en) Speech coding apparatus, speech decoding apparatus, speech coding and decoding method and a phase amplitude characteristic extracting apparatus for carrying out the method
SG101517A1 (en) Multimode speech coding apparatus and decoding apparatus
AU2282899A (en) A decoding method, speech coding processing unit and a network element
GB2323759B (en) Audio coding method and apparatus
EG21303A (en) Scalable audio coding/decoding method and apparatus
AU7037296A (en) Speech encoding method and apparatus and speech decoding method and apparatus
IL122711A0 (en) Scalable audio coding/decoding method and apparatus
EP0742986A4 (en) METHOD AND DEVICE FOR ADAPTIVE ENCODING / DECODING
EP0673122A3 (en) Coding device.
GB2337392B (en) Coding device and method
GB2322251B (en) Contour coding method and device using error bands
AU9647498A (en) Image encoding device, image encoding method, image decoding device and image decoding method
AU5333498A (en) Coding method and apparatus
EP0829141A4 (en) METHOD AND DEVICE FOR ELECTRONIC CODING AND DECODING
SG53078A1 (en) Speech encoding method and apparatus and speech decoding method and apparatus
AU4048795A (en) Coding/decoding apparatus and coding/decoding method
GB9616871D0 (en) A partial fixel encoding and decoding method
AU689413B1 (en) Variable rate speech coding method and decoding method
GB2336269B (en) Encoder and encoding method
SG43430A1 (en) Speech decoding method and apparatus
GB2332838B (en) 7/13 Channel coding and decoding method using RLL (2,25) code
EP0875106A4 (en) SELF-INITIALIZING ENCODER AND METHOD THEREFOR
GB2316277B (en) Transcoder and method for a non-tandem coding operation