DE60113144T2 - Sprach-codec und verfahren zur erzeugung eines vektorcodebuchs und zum codieren/decodieren von sprachsignalen - Google Patents

Sprach-codec und verfahren zur erzeugung eines vektorcodebuchs und zum codieren/decodieren von sprachsignalen Download PDF

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Publication number
DE60113144T2
DE60113144T2 DE60113144T DE60113144T DE60113144T2 DE 60113144 T2 DE60113144 T2 DE 60113144T2 DE 60113144 T DE60113144 T DE 60113144T DE 60113144 T DE60113144 T DE 60113144T DE 60113144 T2 DE60113144 T2 DE 60113144T2
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DE
Germany
Prior art keywords
speech
language
codebooks
codec
vectors
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
DE60113144T
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English (en)
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DE60113144D1 (de
Inventor
Jonathan Alastair Gibbs
James Malcolm Hoskin
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.)
Motorola Solutions Inc
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Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE60113144D1 publication Critical patent/DE60113144D1/de
Publication of DE60113144T2 publication Critical patent/DE60113144T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10L2019/0004—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Machine Translation (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
DE60113144T 2000-10-30 2001-10-22 Sprach-codec und verfahren zur erzeugung eines vektorcodebuchs und zum codieren/decodieren von sprachsignalen Expired - Lifetime DE60113144T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0026463A GB2368761B (en) 2000-10-30 2000-10-30 Speech codec and methods for generating a vector codebook and encoding/decoding speech signals
PCT/EP2001/012403 WO2002037477A1 (en) 2000-10-30 2001-10-22 Speech codec and method for generating a vector codebook and encoding/decoding speech signals

Publications (2)

Publication Number Publication Date
DE60113144D1 DE60113144D1 (de) 2005-10-06
DE60113144T2 true DE60113144T2 (de) 2006-06-14

Family

ID=9902177

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60113144T Expired - Lifetime DE60113144T2 (de) 2000-10-30 2001-10-22 Sprach-codec und verfahren zur erzeugung eines vektorcodebuchs und zum codieren/decodieren von sprachsignalen

Country Status (6)

Country Link
EP (1) EP1334485B1 (de)
AT (1) ATE303647T1 (de)
AU (1) AU2002215972A1 (de)
DE (1) DE60113144T2 (de)
GB (1) GB2368761B (de)
WO (1) WO2002037477A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0703795D0 (en) 2007-02-27 2007-04-04 Sepura Ltd Speech encoding and decoding in communications systems
CN110428847B (zh) * 2019-08-28 2021-08-24 南京梧桐微电子科技有限公司 一种线谱频率参数量化比特分配方法及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0365822A (ja) * 1989-08-04 1991-03-20 Fujitsu Ltd ベクトル量子化符号器及びベクトル量子化復号器
WO1995010760A2 (en) * 1993-10-08 1995-04-20 Comsat Corporation Improved low bit rate vocoders and methods of operation therefor
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
GB2300548B (en) * 1995-05-02 2000-01-12 Motorola Ltd Method for a communications system
WO1997027578A1 (en) * 1996-01-26 1997-07-31 Motorola Inc. Very low bit rate time domain speech analyzer for voice messaging
JP4132154B2 (ja) * 1997-10-23 2008-08-13 ソニー株式会社 音声合成方法及び装置、並びに帯域幅拡張方法及び装置
US5966688A (en) * 1997-10-28 1999-10-12 Hughes Electronics Corporation Speech mode based multi-stage vector quantizer
CA2300077C (en) * 1998-06-09 2007-09-04 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus and speech decoding apparatus
SE519976C2 (sv) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Kodning och avkodning av signaler från flera kanaler

Also Published As

Publication number Publication date
GB2368761B (en) 2003-07-16
EP1334485B1 (de) 2005-08-31
ATE303647T1 (de) 2005-09-15
EP1334485A1 (de) 2003-08-13
GB0026463D0 (en) 2000-12-13
GB2368761A (en) 2002-05-08
DE60113144D1 (de) 2005-10-06
AU2002215972A1 (en) 2002-05-15
WO2002037477A1 (en) 2002-05-10

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