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DE69921066D1 - Verfahren und Vorrichtung zur Sprachkodierung - Google Patents

Verfahren und Vorrichtung zur Sprachkodierung

Info

Publication number
DE69921066D1
DE69921066D1 DE1999621066 DE69921066T DE69921066D1 DE 69921066 D1 DE69921066 D1 DE 69921066D1 DE 1999621066 DE1999621066 DE 1999621066 DE 69921066 T DE69921066 T DE 69921066T DE 69921066 D1 DE69921066 D1 DE 69921066D1
Authority
DE
Germany
Prior art keywords
speech coding
speech
coding
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
DE1999621066
Other languages
English (en)
Other versions
DE69921066T2 (de
Inventor
Hironori Ito
Kazunori Ozawa
Masahiro Serizawa
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Publication of DE69921066D1 publication Critical patent/DE69921066D1/de
Application granted granted Critical
Publication of DE69921066T2 publication Critical patent/DE69921066T2/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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction 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
    • 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

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69921066T 1998-11-27 1999-11-29 Verfahren und Vorrichtung zur Sprachkodierung Expired - Lifetime DE69921066T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33780598 1998-11-27
JP33780598A JP3180786B2 (ja) 1998-11-27 1998-11-27 音声符号化方法及び音声符号化装置

Publications (2)

Publication Number Publication Date
DE69921066D1 true DE69921066D1 (de) 2004-11-18
DE69921066T2 DE69921066T2 (de) 2005-11-10

Family

ID=18312144

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69921066T Expired - Lifetime DE69921066T2 (de) 1998-11-27 1999-11-29 Verfahren und Vorrichtung zur Sprachkodierung

Country Status (5)

Country Link
US (1) US6581031B1 (de)
EP (1) EP1005022B1 (de)
JP (1) JP3180786B2 (de)
CA (1) CA2290859C (de)
DE (1) DE69921066T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992982B1 (de) * 1996-11-07 2001-11-28 Matsushita Electric Industrial Co., Ltd Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs, und Vorrichtung und Verfahren zur Sprachcodierung/-decodierung
JP3180786B2 (ja) 1998-11-27 2001-06-25 日本電気株式会社 音声符号化方法及び音声符号化装置
AU2547201A (en) 2000-01-11 2001-07-24 Matsushita Electric Industrial Co., Ltd. Multi-mode voice encoding device and decoding device
US6879955B2 (en) * 2001-06-29 2005-04-12 Microsoft Corporation Signal modification based on continuous time warping for low bit rate CELP coding
JP3888097B2 (ja) * 2001-08-02 2007-02-28 松下電器産業株式会社 ピッチ周期探索範囲設定装置、ピッチ周期探索装置、復号化適応音源ベクトル生成装置、音声符号化装置、音声復号化装置、音声信号送信装置、音声信号受信装置、移動局装置、及び基地局装置
US7792670B2 (en) * 2003-12-19 2010-09-07 Motorola, Inc. Method and apparatus for speech coding
US7643414B1 (en) * 2004-02-10 2010-01-05 Avaya Inc. WAN keeper efficient bandwidth management
US9058812B2 (en) * 2005-07-27 2015-06-16 Google Technology Holdings LLC Method and system for coding an information signal using pitch delay contour adjustment
US20090240494A1 (en) * 2006-06-29 2009-09-24 Panasonic Corporation Voice encoding device and voice encoding method
CA2671068C (en) * 2006-11-29 2015-06-30 Loquendo S.P.A. Multicodebook source-dependent coding and decoding
US8521519B2 (en) * 2007-03-02 2013-08-27 Panasonic Corporation Adaptive audio signal source vector quantization device and adaptive audio signal source vector quantization method that search for pitch period based on variable resolution
CN101622665B (zh) * 2007-03-02 2012-06-13 松下电器产业株式会社 编码装置以及编码方法
US20100185442A1 (en) * 2007-06-21 2010-07-22 Panasonic Corporation Adaptive sound source vector quantizing device and adaptive sound source vector quantizing method
CN100578619C (zh) * 2007-11-05 2010-01-06 华为技术有限公司 编码方法和编码器
US8862465B2 (en) * 2010-09-17 2014-10-14 Qualcomm Incorporated Determining pitch cycle energy and scaling an excitation signal
US20170365271A1 (en) * 2016-06-15 2017-12-21 Adam Kupryjanow Automatic speech recognition de-reverberation

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3114197B2 (ja) 1990-11-02 2000-12-04 日本電気株式会社 音声パラメータ符号化方法
JP3151874B2 (ja) 1991-02-26 2001-04-03 日本電気株式会社 音声パラメータ符号化方式および装置
JP3254687B2 (ja) * 1991-02-26 2002-02-12 日本電気株式会社 音声符号化方式
JP3143956B2 (ja) 1991-06-27 2001-03-07 日本電気株式会社 音声パラメータ符号化方式
US5734789A (en) * 1992-06-01 1998-03-31 Hughes Electronics Voiced, unvoiced or noise modes in a CELP vocoder
JP2746039B2 (ja) 1993-01-22 1998-04-28 日本電気株式会社 音声符号化方式
IT1270438B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la determinazione del periodo del tono fondamentale e la classificazione del segnale vocale in codificatori numerici della voce
JP3003531B2 (ja) 1995-01-05 2000-01-31 日本電気株式会社 音声符号化装置
JP3089967B2 (ja) 1995-01-17 2000-09-18 日本電気株式会社 音声符号化装置
JPH08320700A (ja) 1995-05-26 1996-12-03 Nec Corp 音声符号化装置
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
EP0788091A3 (de) * 1996-01-31 1999-02-24 Kabushiki Kaisha Toshiba Verfahren und Vorrichtung zur Sprachkodierung und -dekodierung
US6226604B1 (en) * 1996-08-02 2001-05-01 Matsushita Electric Industrial Co., Ltd. Voice encoder, voice decoder, recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus
FI113903B (fi) * 1997-05-07 2004-06-30 Nokia Corp Puheen koodaus
US6073092A (en) * 1997-06-26 2000-06-06 Telogy Networks, Inc. Method for speech coding based on a code excited linear prediction (CELP) model
JP3180786B2 (ja) 1998-11-27 2001-06-25 日本電気株式会社 音声符号化方法及び音声符号化装置

Also Published As

Publication number Publication date
JP2000163096A (ja) 2000-06-16
CA2290859C (en) 2005-01-11
CA2290859A1 (en) 2000-05-27
DE69921066T2 (de) 2005-11-10
EP1005022A1 (de) 2000-05-31
EP1005022B1 (de) 2004-10-13
JP3180786B2 (ja) 2001-06-25
US6581031B1 (en) 2003-06-17

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Legal Events

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