EP0614075A3 - Méthode de codage de parole utilisant la quantisation codée Trellis pour codage LPC. - Google Patents

Méthode de codage de parole utilisant la quantisation codée Trellis pour codage LPC. Download PDF

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Publication number
EP0614075A3
EP0614075A3 EP94103204A EP94103204A EP0614075A3 EP 0614075 A3 EP0614075 A3 EP 0614075A3 EP 94103204 A EP94103204 A EP 94103204A EP 94103204 A EP94103204 A EP 94103204A EP 0614075 A3 EP0614075 A3 EP 0614075A3
Authority
EP
European Patent Office
Prior art keywords
quantization
coding
linear predictive
trellis coded
predictive coding
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
EP94103204A
Other languages
German (de)
English (en)
Other versions
EP0614075A2 (fr
EP0614075B1 (fr
Inventor
Marco Fratti
Silvio Cucchi
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Italia SpA
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 Alcatel Italia SpA filed Critical Alcatel Italia SpA
Publication of EP0614075A2 publication Critical patent/EP0614075A2/fr
Publication of EP0614075A3 publication Critical patent/EP0614075A3/fr
Application granted granted Critical
Publication of EP0614075B1 publication Critical patent/EP0614075B1/fr
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
    • G10L19/06—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
    • G10L19/002—Dynamic bit allocation

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)
  • Error Detection And Correction (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
EP94103204A 1993-03-03 1994-03-03 Méthode et appareil de codage de parole utilisant la quantisation codée Trellis pour la quantisation LPC Expired - Lifetime EP0614075B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI930406A IT1271959B (it) 1993-03-03 1993-03-03 Codec per il parlato a predizione lineare eccitato da un libro di codici
ITMI930406 1993-03-03

Publications (3)

Publication Number Publication Date
EP0614075A2 EP0614075A2 (fr) 1994-09-07
EP0614075A3 true EP0614075A3 (fr) 1995-08-02
EP0614075B1 EP0614075B1 (fr) 2000-06-21

Family

ID=11365221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103204A Expired - Lifetime EP0614075B1 (fr) 1993-03-03 1994-03-03 Méthode et appareil de codage de parole utilisant la quantisation codée Trellis pour la quantisation LPC

Country Status (3)

Country Link
EP (1) EP0614075B1 (fr)
DE (1) DE69424960T2 (fr)
IT (1) IT1271959B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3557255B2 (ja) * 1994-10-18 2004-08-25 松下電器産業株式会社 Ｌｓｐパラメータ復号化装置及び復号化方法
US6128346A (en) * 1998-04-14 2000-10-03 Motorola, Inc. Method and apparatus for quantizing a signal in a digital system
SG11201608787UA (en) * 2014-03-28 2016-12-29 Samsung Electronics Co Ltd Method and device for quantization of linear prediction coefficient and method and device for inverse quantization
CN112927702B (zh) 2014-05-07 2024-11-12 三星电子株式会社 对线性预测系数量化的方法和装置及解量化的方法和装置
CN120783775B (zh) * 2025-09-08 2025-12-09 科大讯飞股份有限公司 音频编解码方法、电子设备及程序产品

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230001A1 (fr) * 1985-12-17 1987-07-29 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Procédé et dispositif de codage et de décodage de la parole par analyse de sous-bandes et quantification vectorielle comportant une allocation dynamique de bits
US4975956A (en) * 1989-07-26 1990-12-04 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230001A1 (fr) * 1985-12-17 1987-07-29 CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A. Procédé et dispositif de codage et de décodage de la parole par analyse de sous-bandes et quantification vectorielle comportant une allocation dynamique de bits
US4975956A (en) * 1989-07-26 1990-12-04 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
K.K. PALIWAL ET AL.: "Efficient vector quantization of LPC parameters at 24 bits/frame", ICASSP 91, vol. 1, 14 May 1991 (1991-05-14), TORONTO, pages 661 - 664 *
M.W. MARCELLIN ET AL.: "A Trellis-searched 16 kbit/sec speech coder with low-delay", ADVANCES IN SPEECH CODING, 1 January 1991 (1991-01-01), pages 47 - 56, XP000419261 *
M.W.MARCELLIN ET AL.: "Trellis Coded Quantization of Memoryless and Gauss-Markov sources", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 38, no. 1, January 1990 (1990-01-01), pages 82 - 93, XP000102582, DOI: doi:10.1109/26.46532 *

Also Published As

Publication number Publication date
DE69424960D1 (de) 2000-07-27
EP0614075A2 (fr) 1994-09-07
DE69424960T2 (de) 2001-01-11
EP0614075B1 (fr) 2000-06-21
ITMI930406A1 (it) 1994-09-03
ITMI930406A0 (it) 1993-03-03
IT1271959B (it) 1997-06-10

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