EP0899720A3 - Quantization of linear prediction coefficients - Google Patents

Quantization of linear prediction coefficients Download PDF

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Publication number
EP0899720A3
EP0899720A3 EP98306906A EP98306906A EP0899720A3 EP 0899720 A3 EP0899720 A3 EP 0899720A3 EP 98306906 A EP98306906 A EP 98306906A EP 98306906 A EP98306906 A EP 98306906A EP 0899720 A3 EP0899720 A3 EP 0899720A3
Authority
EP
European Patent Office
Prior art keywords
quantization
impulse response
computing
jacobian matrix
lsf
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
EP98306906A
Other languages
German (de)
French (fr)
Other versions
EP0899720A2 (en
EP0899720B1 (en
Inventor
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
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of EP0899720A2 publication Critical patent/EP0899720A2/en
Publication of EP0899720A3 publication Critical patent/EP0899720A3/en
Application granted granted Critical
Publication of EP0899720B1 publication Critical patent/EP0899720B1/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
    • G10L19/02—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
    • G10L19/06—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
    • G10L2019/0013—Codebook search algorithms
    • G10L2019/0014—Selection criteria for distances

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)

Abstract

A new method for quantization of the LPC coefficients in a speech coder includes a new weighted error measure including every frame sampling an impulse response from LPC filter (21) of said coder, filtering the samples using a perceptual weighting filter (47) and processing in a computer (39) to calculate autocorrelation function of the weighted impulse response, computing Jacobian matrix for LSF (Line Spectral Frequency), computing correlation of rows of Jacobian matrix and calculating LSF weights by multiplying correlation matrices.
EP98306906A 1997-08-28 1998-08-27 Quantization of linear prediction coefficients Expired - Lifetime EP0899720B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5711497P 1997-08-28 1997-08-28
US57114P 1997-08-28

Publications (3)

Publication Number Publication Date
EP0899720A2 EP0899720A2 (en) 1999-03-03
EP0899720A3 true EP0899720A3 (en) 1999-09-15
EP0899720B1 EP0899720B1 (en) 2004-12-15

Family

ID=22008595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98306906A Expired - Lifetime EP0899720B1 (en) 1997-08-28 1998-08-27 Quantization of linear prediction coefficients

Country Status (3)

Country Link
EP (1) EP0899720B1 (en)
JP (1) JPH11143498A (en)
DE (1) DE69828119D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW408298B (en) * 1997-08-28 2000-10-11 Texas Instruments Inc Improved method for switched-predictive quantization
KR100464310B1 (en) * 1999-03-13 2004-12-31 삼성전자주식회사 Method for pattern matching using LSP
KR100474969B1 (en) * 2002-06-04 2005-03-10 에스엘투 주식회사 Vector quantization method of line spectral coefficients for coding voice singals and method for calculating masking critical valule therefor
US7516066B2 (en) 2002-07-16 2009-04-07 Koninklijke Philips Electronics N.V. Audio coding
KR100647290B1 (en) 2004-09-22 2006-11-23 삼성전자주식회사 Voice encoder/decoder for selecting quantization/dequantization using synthesized speech-characteristics
JP5142727B2 (en) 2005-12-27 2013-02-13 パナソニック株式会社 Speech decoding apparatus and speech decoding method
CN101320565B (en) * 2007-06-08 2011-05-11 华为技术有限公司 Perception weighting filtering wave method and perception weighting filter thererof
KR101747917B1 (en) * 2010-10-18 2017-06-15 삼성전자주식회사 Apparatus and method for determining weighting function having low complexity for lpc coefficients quantization
ES2952973T3 (en) * 2014-01-15 2023-11-07 Samsung Electronics Co Ltd Weighting function determination device and procedure for quantifying the linear prediction coding coefficient

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0905680A2 (en) * 1997-08-28 1999-03-31 Texas Instruments Inc. Method for quantizing LPC parameters using switched-predictive quantization

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0905680A2 (en) * 1997-08-28 1999-03-31 Texas Instruments Inc. Method for quantizing LPC parameters using switched-predictive quantization

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
COHN R P ET AL: "Incorporating perception into LSF quantization some experiments", 1997 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (CAT. NO.97CB36052), 1997 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, MUNICH, GERMANY, 21-24 APRIL 1997, 1997, Los Alamitos, CA, USA, IEEE Comput. Soc. Press, USA, pages 1347 - 1350 vol.2, XP002109403, ISBN: 0-8186-7919-0 *
GARDNER W R ET AL: "THEORETICAL ANALYSIS OF THE HIGH-RATE VECTOR QUANTIZATION OF PLC PARAMETERS", IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, vol. 3, no. 5, 1 September 1995 (1995-09-01), pages 367 - 381, XP000641961, ISSN: 1063-6676 *
MCCREE A ET AL: "A 1.7 kb/s MELP coder with improved analysis and quantization", PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, ICASSP '98 (CAT. NO.98CH36181), PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, SEATTLE, WA, USA, 12-1, 1998, New York, NY, USA, IEEE, USA, pages 593 - 596 vol.2, XP002109401, ISBN: 0-7803-4428-6 *
MCCREE A ET AL: "A 2.4 kbit/s MELP coder candidate for the new U.S. Federal Standard", 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 200 - 203 vol. 1, XP002109402, ISBN: 0-7803-3192-3 *
PALIWAL K K ET AL: "EFFICIENT VECTOR QUANTIZATION OF LPC PARAMETERS AT 24 BITS/FRAME", SPEECH PROCESSING 1, TORONTO, MAY 14 - 17, 1991, vol. 1, no. CONF. 16, 14 May 1991 (1991-05-14), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 661 - 664, XP000245315, ISBN: 0-7803-0003-3 *

Also Published As

Publication number Publication date
EP0899720A2 (en) 1999-03-03
EP0899720B1 (en) 2004-12-15
JPH11143498A (en) 1999-05-28
DE69828119D1 (en) 2005-01-20

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