NO20045718L - Fremgangsmate og system for multirate-latticevektorkvantisering av et signal - Google Patents

Fremgangsmate og system for multirate-latticevektorkvantisering av et signal

Info

Publication number
NO20045718L
NO20045718L NO20045718A NO20045718A NO20045718L NO 20045718 L NO20045718 L NO 20045718L NO 20045718 A NO20045718 A NO 20045718A NO 20045718 A NO20045718 A NO 20045718A NO 20045718 L NO20045718 L NO 20045718L
Authority
NO
Norway
Prior art keywords
lattice
codebook
quantization
base
rate
Prior art date
Application number
NO20045718A
Other languages
English (en)
Inventor
Bruno Bessette
Stephane Ragot
Jean-Pierre Adou
Original Assignee
Voiceage 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=29589087&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO20045718(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voiceage Corp filed Critical Voiceage Corp
Publication of NO20045718L publication Critical patent/NO20045718L/no

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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • 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
    • G10L19/002—Dynamic bit allocation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3082—Vector 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Den foreliggende oppfinnelsen angår en fremgangsmåte og system for multirate gittervektorkvantisering av en kildevektor x som representerer en ramme fra et kildesignal som for eksempel skal anvendes i digitale overførin 's- og lagringssystemer. Fremgangsmåten for multirate gittervektorkvantisering omfatter trinnet med å assosiere et gitterpunkt y i et ubundet gi etter A til x; verifisering dersom y er inkludert i basiskodebok C utledet fra gitteret A; dersom dette ikke e r tilfelle, så indeksering av y i C for slik å gi kvantiseringsindekser. Dersom ikke så utvidelse av basiskodeboken ved for eksempel anvendelse av en Voronoi-basert utvidelsesfremgangsmåte, som resulterer i en utvidet kodebok; assosiering av en kodevektor c fra den utvidede kodeboken til y, og indeksering av y i den utvidede kodeboken C. Utvidelsesteknikkene tillater å oppnå høyere bitratekodebøker fra basiskodebøkene sammenlignet med kvantiseringsfremgangsmåter og systemer av kjent type.
NO20045718A 2002-05-31 2004-12-30 Fremgangsmate og system for multirate-latticevektorkvantisering av et signal NO20045718L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002388358A CA2388358A1 (en) 2002-05-31 2002-05-31 A method and device for multi-rate lattice vector quantization
PCT/CA2003/000829 WO2003103151A1 (en) 2002-05-31 2003-05-30 Method and system for multi-rate lattice vector quantization of a signal

Publications (1)

Publication Number Publication Date
NO20045718L true NO20045718L (no) 2005-02-22

Family

ID=29589087

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20045718A NO20045718L (no) 2002-05-31 2004-12-30 Fremgangsmate og system for multirate-latticevektorkvantisering av et signal

Country Status (18)

Country Link
US (1) US7106228B2 (no)
EP (1) EP1514355B1 (no)
JP (1) JP4224021B2 (no)
KR (1) KR20050008761A (no)
CN (1) CN1659785B (no)
AT (1) ATE440409T1 (no)
AU (1) AU2003233723A1 (no)
BR (1) BR0311336A (no)
CA (1) CA2388358A1 (no)
DE (1) DE60328892D1 (no)
DK (1) DK1514355T3 (no)
ES (1) ES2331876T3 (no)
MX (1) MXPA04011841A (no)
NO (1) NO20045718L (no)
PT (1) PT1514355E (no)
RU (1) RU2004138289A (no)
WO (1) WO2003103151A1 (no)
ZA (1) ZA200408780B (no)

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Also Published As

Publication number Publication date
AU2003233723A1 (en) 2003-12-19
RU2004138289A (ru) 2005-06-10
CN1659785B (zh) 2011-04-20
MXPA04011841A (es) 2005-07-26
JP2005528839A (ja) 2005-09-22
DE60328892D1 (de) 2009-10-01
WO2003103151A1 (en) 2003-12-11
EP1514355A1 (en) 2005-03-16
BR0311336A (pt) 2005-03-15
US7106228B2 (en) 2006-09-12
PT1514355E (pt) 2009-11-19
ATE440409T1 (de) 2009-09-15
ZA200408780B (en) 2005-08-30
CA2388358A1 (en) 2003-11-30
CN1659785A (zh) 2005-08-24
JP4224021B2 (ja) 2009-02-12
KR20050008761A (ko) 2005-01-21
ES2331876T3 (es) 2010-01-19
EP1514355B1 (en) 2009-08-19
DK1514355T3 (da) 2009-12-14
US20050285764A1 (en) 2005-12-29

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