EP1035538A3 - Multimode quantizing of the prediction residual in a speech coder - Google Patents

Multimode quantizing of the prediction residual in a speech coder Download PDF

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Publication number
EP1035538A3
EP1035538A3 EP00200874A EP00200874A EP1035538A3 EP 1035538 A3 EP1035538 A3 EP 1035538A3 EP 00200874 A EP00200874 A EP 00200874A EP 00200874 A EP00200874 A EP 00200874A EP 1035538 A3 EP1035538 A3 EP 1035538A3
Authority
EP
European Patent Office
Prior art keywords
quantizing
multimode
prediction residual
speech coder
weak
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.)
Granted
Application number
EP00200874A
Other languages
German (de)
French (fr)
Other versions
EP1035538A2 (en
EP1035538B1 (en
Inventor
Jacek Stachurski
Alan V. Mccree
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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Publication date
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Publication of EP1035538A2 publication Critical patent/EP1035538A2/en
Publication of EP1035538A3 publication Critical patent/EP1035538A3/en
Application granted granted Critical
Publication of EP1035538B1 publication Critical patent/EP1035538B1/en
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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Linear predictive system with classification of LP residual Fourier coefficients into two or more overlapping classes, and each class has its own vector quantization codebook(s). And modified use of strong and weak predictors to replace a strong predictor following a weak predictor with a weak predictor to insure attenuation of error propagation as arise from frame erasures.
Figure 00000001
EP20000200874 1999-03-12 2000-03-13 Multimode quantizing of the prediction residual in a speech coder Expired - Lifetime EP1035538B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12411299P 1999-03-12 1999-03-12
US12408999P 1999-03-12 1999-03-12
US124112P 1999-03-12
US124089P 1999-03-12

Publications (3)

Publication Number Publication Date
EP1035538A2 EP1035538A2 (en) 2000-09-13
EP1035538A3 true EP1035538A3 (en) 2003-04-23
EP1035538B1 EP1035538B1 (en) 2005-07-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000200874 Expired - Lifetime EP1035538B1 (en) 1999-03-12 2000-03-13 Multimode quantizing of the prediction residual in a speech coder

Country Status (3)

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EP (1) EP1035538B1 (en)
JP (1) JP2000305597A (en)
DE (1) DE60021455T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2392640A1 (en) 2002-07-05 2004-01-05 Voiceage Corporation A method and device for efficient in-based dim-and-burst signaling and half-rate max operation in variable bit-rate wideband speech coding for cdma wireless systems
CA2415105A1 (en) * 2002-12-24 2004-06-24 Voiceage Corporation A method and device for robust predictive vector quantization of linear prediction parameters in variable bit rate speech coding
US20080249767A1 (en) * 2007-04-05 2008-10-09 Ali Erdem Ertan Method and system for reducing frame erasure related error propagation in predictive speech parameter coding

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751494A1 (en) * 1994-12-21 1997-01-02 Sony Corporation Sound encoding system
US5749065A (en) * 1994-08-30 1998-05-05 Sony Corporation Speech encoding method, speech decoding method and speech encoding/decoding method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749065A (en) * 1994-08-30 1998-05-05 Sony Corporation Speech encoding method, speech decoding method and speech encoding/decoding method
EP0751494A1 (en) * 1994-12-21 1997-01-02 Sony Corporation Sound encoding system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ERIKSSON T ET AL: "Exploiting interframe correlation in spectral quantization: a study of different memory VQ schemes", 1996 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING CONFERENCE PROCEEDINGS (CAT. NO.96CH35903), 1996 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING CONFERENCE PROCEEDINGS, ATLANTA, GA, USA, 7-10 M, 1996, New York, NY, USA, IEEE, USA, pages 765 - 768 vol. 2, XP002230715, ISBN: 0-7803-3192-3 *
MARSTON D F: "Gender adapted speech coding", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 1998. PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON SEATTLE, WA, USA 12-15 MAY 1998, NEW YORK, NY, USA,IEEE, US, 12 May 1998 (1998-05-12), pages 357 - 360, XP010279165, ISBN: 0-7803-4428-6 *
MCCREE A ET AL: "A 1.7 kb/s MELP coder with improved analysis and quantization", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 1998. PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON SEATTLE, WA, USA 12-15 MAY 1998, NEW YORK, NY, USA,IEEE, US, 12 May 1998 (1998-05-12), pages 593 - 596, XP010279196, ISBN: 0-7803-4428-6 *
STACHURSKI JACEK ET AL: "High quality MELP coding at bit-rates around 4 kb/s", PROCEEDINGS OF THE 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP-99);PHOENIX, AZ, USA MAR 15-MAR 19 1999, vol. 1, 1999, ICASSP IEEE Int Conf Acoust Speech Signal Process Proc;ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings 1999 IEEE, Piscataway, NJ, USA, pages 485 - 488, XP002230714 *

Also Published As

Publication number Publication date
JP2000305597A (en) 2000-11-02
DE60021455T2 (en) 2006-05-24
EP1035538A2 (en) 2000-09-13
EP1035538B1 (en) 2005-07-27
DE60021455D1 (en) 2005-09-01

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