DE69420683D1 - Kodierer für Sprachparameter - Google Patents

Kodierer für Sprachparameter

Info

Publication number
DE69420683D1
DE69420683D1 DE69420683T DE69420683T DE69420683D1 DE 69420683 D1 DE69420683 D1 DE 69420683D1 DE 69420683 T DE69420683 T DE 69420683T DE 69420683 T DE69420683 T DE 69420683T DE 69420683 D1 DE69420683 D1 DE 69420683D1
Authority
DE
Germany
Prior art keywords
spectrum
weighted coefficient
spectrum parameter
parameter
derives
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 - Fee Related
Application number
DE69420683T
Other languages
English (en)
Other versions
DE69420683T2 (de
Inventor
Kazunori Ozawa
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
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69420683D1 publication Critical patent/DE69420683D1/de
Publication of DE69420683T2 publication Critical patent/DE69420683T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69420683T 1993-12-10 1994-12-09 Kodierer für Sprachparameter Expired - Fee Related DE69420683T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5310524A JPH07160297A (ja) 1993-12-10 1993-12-10 音声パラメータ符号化方式

Publications (2)

Publication Number Publication Date
DE69420683D1 true DE69420683D1 (de) 1999-10-21
DE69420683T2 DE69420683T2 (de) 2000-07-20

Family

ID=18006272

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69420683T Expired - Fee Related DE69420683T2 (de) 1993-12-10 1994-12-09 Kodierer für Sprachparameter

Country Status (5)

Country Link
US (1) US5666465A (de)
EP (1) EP0658876B1 (de)
JP (1) JPH07160297A (de)
CA (1) CA2137757C (de)
DE (1) DE69420683T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2842276B2 (ja) * 1995-02-24 1998-12-24 日本電気株式会社 広帯域信号符号化装置
FI100840B (fi) * 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
JP3246715B2 (ja) * 1996-07-01 2002-01-15 松下電器産業株式会社 オーディオ信号圧縮方法，およびオーディオ信号圧縮装置
US6904404B1 (en) * 1996-07-01 2005-06-07 Matsushita Electric Industrial Co., Ltd. Multistage inverse quantization having the plurality of frequency bands
JP3357795B2 (ja) * 1996-08-16 2002-12-16 株式会社東芝 音声符号化方法および装置
JPH10124088A (ja) * 1996-10-24 1998-05-15 Sony Corp 音声帯域幅拡張装置及び方法
EP0907258B1 (de) 1997-10-03 2007-01-03 Matsushita Electric Industrial Co., Ltd. Audiosignalkompression, Sprachsignalkompression und Spracherkennung
JP3351746B2 (ja) * 1997-10-03 2002-12-03 松下電器産業株式会社 オーディオ信号圧縮方法、オーディオ信号圧縮装置、音声信号圧縮方法、音声信号圧縮装置，音声認識方法および音声認識装置
JP3357829B2 (ja) * 1997-12-24 2002-12-16 株式会社東芝 音声符号化／復号化方法
CA2239294A1 (en) * 1998-05-29 1999-11-29 Majid Foodeei Methods and apparatus for efficient quantization of gain parameters in glpas speech coders
US6393399B1 (en) * 1998-09-30 2002-05-21 Scansoft, Inc. Compound word recognition
KR100474969B1 (ko) * 2002-06-04 2005-03-10 에스엘투 주식회사 음성신호 부호화를 위한 선 스펙트럼 계수의 벡터 양자화방법과 이를 위한 마스킹 임계치 산출 방법
US7693707B2 (en) 2003-12-26 2010-04-06 Pansonic Corporation Voice/musical sound encoding device and voice/musical sound encoding method
FR2947944A1 (fr) * 2009-07-07 2011-01-14 France Telecom Codage/decodage perfectionne de signaux audionumeriques
FR3049084B1 (fr) 2016-03-15 2022-11-11 Fraunhofer Ges Forschung Dispositif de codage pour le traitement d'un signal d'entree et dispositif de decodage pour le traitement d'un signal code
CN111862995A (zh) * 2020-06-22 2020-10-30 北京达佳互联信息技术有限公司 一种码率确定模型训练方法、码率确定方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1197619A (en) * 1982-12-24 1985-12-03 Kazunori Ozawa Voice encoding systems
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
EP0443548B1 (de) * 1990-02-22 2003-07-23 Nec Corporation Sprachcodierer
JP2808841B2 (ja) * 1990-07-13 1998-10-08 日本電気株式会社 音声符号化方式
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
US5487086A (en) * 1991-09-13 1996-01-23 Comsat Corporation Transform vector quantization for adaptive predictive coding

Also Published As

Publication number Publication date
EP0658876A2 (de) 1995-06-21
EP0658876B1 (de) 1999-09-15
EP0658876A3 (de) 1997-08-13
JPH07160297A (ja) 1995-06-23
CA2137757C (en) 1998-11-24
DE69420683T2 (de) 2000-07-20
CA2137757A1 (en) 1995-06-11
US5666465A (en) 1997-09-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee