BR9604838A - Processo para quantificação eficiente de modelos espectrais n lpc for estrutura - Google Patents

Processo para quantificação eficiente de modelos espectrais n lpc for estrutura

Info

Publication number
BR9604838A
BR9604838A BR9604838A BR9604838A BR9604838A BR 9604838 A BR9604838 A BR 9604838A BR 9604838 A BR9604838 A BR 9604838A BR 9604838 A BR9604838 A BR 9604838A BR 9604838 A BR9604838 A BR 9604838A
Authority
BR
Brazil
Prior art keywords
lpc
spectral models
efficient
efficient quantification
representation
Prior art date
Application number
BR9604838A
Other languages
English (en)
Inventor
Claude Laflamme
Redwan Salami
Jean-Pierre Adoul
Original Assignee
Univ Sherbrooke
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=23648186&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9604838(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Univ Sherbrooke filed Critical Univ Sherbrooke
Publication of BR9604838A publication Critical patent/BR9604838A/pt

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
    • 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

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)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
BR9604838A 1995-04-03 1996-04-02 Processo para quantificação eficiente de modelos espectrais n lpc for estrutura BR9604838A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/416,019 US5664053A (en) 1995-04-03 1995-04-03 Predictive split-matrix quantization of spectral parameters for efficient coding of speech
PCT/CA1996/000202 WO1996031873A1 (en) 1995-04-03 1996-04-02 Predictive split-matrix quantization of spectral parameters for efficient coding of speech

Publications (1)

Publication Number Publication Date
BR9604838A true BR9604838A (pt) 1998-06-16

Family

ID=23648186

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9604838A BR9604838A (pt) 1995-04-03 1996-04-02 Processo para quantificação eficiente de modelos espectrais n lpc for estrutura

Country Status (12)

Country Link
US (1) US5664053A (pt)
EP (1) EP0819303B1 (pt)
JP (1) JP3590071B2 (pt)
CN (1) CN1112674C (pt)
AT (1) ATE198805T1 (pt)
AU (1) AU697256C (pt)
BR (1) BR9604838A (pt)
CA (1) CA2216315C (pt)
DE (1) DE69611607T2 (pt)
DK (1) DK0819303T3 (pt)
ES (1) ES2156273T3 (pt)
WO (1) WO1996031873A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3067676B2 (ja) * 1997-02-13 2000-07-17 日本電気株式会社 Ｌｓｐの予測符号化装置及び方法
US6161089A (en) * 1997-03-14 2000-12-12 Digital Voice Systems, Inc. Multi-subframe quantization of spectral parameters
FI113903B (fi) 1997-05-07 2004-06-30 Nokia Corp Puheen koodaus
TW408298B (en) * 1997-08-28 2000-10-11 Texas Instruments Inc Improved method for switched-predictive quantization
US6199037B1 (en) * 1997-12-04 2001-03-06 Digital Voice Systems, Inc. Joint quantization of speech subframe voicing metrics and fundamental frequencies
FI980132A (fi) 1998-01-21 1999-07-22 Nokia Mobile Phones Ltd Adaptoituva jälkisuodatin
US6256607B1 (en) * 1998-09-08 2001-07-03 Sri International Method and apparatus for automatic recognition using features encoded with product-space vector quantization
US6347297B1 (en) * 1998-10-05 2002-02-12 Legerity, Inc. Matrix quantization with vector quantization error compensation and neural network postprocessing for robust speech recognition
US6219642B1 (en) 1998-10-05 2001-04-17 Legerity, Inc. Quantization using frequency and mean compensated frequency input data for robust speech recognition
GB2364870A (en) * 2000-07-13 2002-02-06 Motorola Inc Vector quantization system for speech encoding/decoding
US20100023575A1 (en) * 2005-03-11 2010-01-28 Agency For Science, Technology And Research Predictor
DE102007006084A1 (de) 2007-02-07 2008-09-25 Jacob, Christian E., Dr. Ing. Verfahren zum zeitnahen Ermitteln der Kennwerte, Harmonischen und Nichtharmonischen von schnell veränderlichen Signalen mit zusätzlicher Ausgabe davon abgeleiteter Muster, Steuersignale, Ereignisstempel für die Nachverarbeitung sowie einer Gewichtung der Ergebnisse
CN101960511B (zh) * 2008-02-28 2013-06-26 夏普株式会社 驱动电路以及显示装置
KR101315617B1 (ko) * 2008-11-26 2013-10-08 광운대학교 산학협력단 모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481026B1 (pt) * 1980-04-21 1984-06-15 France Etat
US4536886A (en) * 1982-05-03 1985-08-20 Texas Instruments Incorporated LPC pole encoding using reduced spectral shaping polynomial
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US5067158A (en) * 1985-06-11 1991-11-19 Texas Instruments Incorporated Linear predictive residual representation via non-iterative spectral reconstruction
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
DE3732047A1 (de) * 1987-09-23 1989-04-06 Siemens Ag Verfahren zur umcodierung von kanalvocoder-parameter in lpc-vocoder-parameter
US4964166A (en) * 1988-05-26 1990-10-16 Pacific Communication Science, Inc. Adaptive transform coder having minimal bit allocation processing
US5384891A (en) * 1988-09-28 1995-01-24 Hitachi, Ltd. Vector quantizing apparatus and speech analysis-synthesis system using the apparatus
US4956871A (en) * 1988-09-30 1990-09-11 At&T Bell Laboratories Improving sub-band coding of speech at low bit rates by adding residual speech energy signals to sub-bands
CA2027705C (en) * 1989-10-17 1994-02-15 Masami Akamine Speech coding system utilizing a recursive computation technique for improvement in processing speed
CA2010830C (en) * 1990-02-23 1996-06-25 Jean-Pierre Adoul Dynamic codebook for efficient speech coding based on algebraic codes
JP2770581B2 (ja) * 1991-02-19 1998-07-02 日本電気株式会社 音声信号のスペクトル分析方法とその装置
US5351338A (en) * 1992-07-06 1994-09-27 Telefonaktiebolaget L M Ericsson Time variable spectral analysis based on interpolation for speech coding

Also Published As

Publication number Publication date
CN1184548A (zh) 1998-06-10
ES2156273T3 (es) 2001-06-16
CA2216315C (en) 2002-10-22
CA2216315A1 (en) 1996-10-10
EP0819303A1 (en) 1998-01-21
AU697256B2 (en) 1998-10-01
AU5263396A (en) 1996-10-23
JP3590071B2 (ja) 2004-11-17
US5664053A (en) 1997-09-02
EP0819303B1 (en) 2001-01-17
AU697256C (en) 2003-01-30
DE69611607D1 (de) 2001-02-22
ATE198805T1 (de) 2001-02-15
DE69611607T2 (de) 2001-06-28
JPH11503531A (ja) 1999-03-26
DK0819303T3 (da) 2001-01-29
CN1112674C (zh) 2003-06-25
WO1996031873A1 (en) 1996-10-10

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 02/04/2016

B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: G10L 9/14; G10L 9/18; G10L 7/04.

Ipc: G10L 19/06 (2013.01)

Ipc: G10L 19/06 (2013.01)