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AU2250995A - Differential-transform-coded excitation for speech and audio coding - Google Patents

Differential-transform-coded excitation for speech and audio coding

Info

Publication number
AU2250995A
AU2250995A AU22509/95A AU2250995A AU2250995A AU 2250995 A AU2250995 A AU 2250995A AU 22509/95 A AU22509/95 A AU 22509/95A AU 2250995 A AU2250995 A AU 2250995A AU 2250995 A AU2250995 A AU 2250995A
Authority
AU
Australia
Prior art keywords
speech
transform
differential
audio coding
coded excitation
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.)
Abandoned
Application number
AU22509/95A
Inventor
Jean-Pierre Adoul
Claude Laflamme
Roch Lefebvre
Redwan Salami
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.)
Universite de Sherbrooke
Original Assignee
Universite de 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
Application filed by Universite de Sherbrooke filed Critical Universite de Sherbrooke
Publication of AU2250995A publication Critical patent/AU2250995A/en
Abandoned 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
    • G10L19/02—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (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)
AU22509/95A 1994-04-19 1995-04-18 Differential-transform-coded excitation for speech and audio coding Abandoned AU2250995A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2121667 1994-04-19
CA 2121667 CA2121667A1 (en) 1994-04-19 1994-04-19 Differential-transform-coded excitation for speech and audio coding
PCT/CA1995/000216 WO1995028699A1 (en) 1994-04-19 1995-04-18 Differential-transform-coded excitation for speech and audio coding

Publications (1)

Publication Number Publication Date
AU2250995A true AU2250995A (en) 1995-11-10

Family

ID=4153411

Family Applications (1)

Application Number Title Priority Date Filing Date
AU22509/95A Abandoned AU2250995A (en) 1994-04-19 1995-04-18 Differential-transform-coded excitation for speech and audio coding

Country Status (3)

Country Link
AU (1) AU2250995A (en)
CA (1) CA2121667A1 (en)
WO (1) WO1995028699A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1386310A1 (en) * 2001-05-11 2004-02-04 Matsushita Electric Industrial Co., Ltd. Device to encode, decode and broadcast audio signal with reduced size spectral information
CN101086845B (en) * 2006-06-08 2011-06-01 北京天籁传音数字技术有限公司 Sound coding device and method and sound decoding device and method
CN100583649C (en) 2007-07-23 2010-01-20 华为技术有限公司 Vector encoding/decoding method, device and streaming media player
ATE518224T1 (en) 2008-01-04 2011-08-15 Dolby Int Ab AUDIO ENCODERS AND DECODERS
CA3025108C (en) 2010-07-02 2020-10-27 Dolby International Ab Audio decoding with selective post filtering
CN103366751B (en) * 2012-03-28 2015-10-14 北京天籁传音数字技术有限公司 A kind of sound codec devices and methods therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907276A (en) * 1988-04-05 1990-03-06 The Dsp Group (Israel) Ltd. Fast search method for vector quantizer communication and pattern recognition systems
US5206884A (en) * 1990-10-25 1993-04-27 Comsat Transform domain quantization technique for adaptive predictive coding
US5765127A (en) * 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method

Also Published As

Publication number Publication date
WO1995028699A1 (en) 1995-10-26
CA2121667A1 (en) 1995-10-20

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