ATE303647T1 - 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

Info

Publication number
ATE303647T1
ATE303647T1 AT01993000T AT01993000T ATE303647T1 AT E303647 T1 ATE303647 T1 AT E303647T1 AT 01993000 T AT01993000 T AT 01993000T AT 01993000 T AT01993000 T AT 01993000T AT E303647 T1 ATE303647 T1 AT E303647T1
Authority
AT
Austria
Prior art keywords
speech
codebooks
vectors
codebook
vector codebook
Prior art date
Application number
AT01993000T
Other languages
English (en)
Inventor
Jonathan Alastair Gibbs
James Malcolm Hoskin
Original Assignee
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 ATE303647T1 publication Critical patent/ATE303647T1/de

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
    • G10L2019/0004—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)
AT01993000T 2000-10-30 2001-10-22 Sprach-codec und verfahren zur erzeugung eines vektorcodebuchs und zum codieren/decodieren von sprachsignalen ATE303647T1 (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 (1)

Publication Number Publication Date
ATE303647T1 true ATE303647T1 (de) 2005-09-15

Family

ID=9902177

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01993000T ATE303647T1 (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
KR100351484B1 (ko) * 1998-06-09 2002-09-05 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치, 음성 복호화 장치, 음성 부호화 방법 및 기록 매체
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
EP1334485A1 (de) 2003-08-13
AU2002215972A1 (en) 2002-05-15
EP1334485B1 (de) 2005-08-31
DE60113144D1 (de) 2005-10-06
WO2002037477A1 (en) 2002-05-10
GB2368761A (en) 2002-05-08
GB2368761B (en) 2003-07-16
DE60113144T2 (de) 2006-06-14
GB0026463D0 (en) 2000-12-13

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