FR2702590B1 - Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP. - Google Patents

Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.

Info

Publication number
FR2702590B1
FR2702590B1 FR9302881A FR9302881A FR2702590B1 FR 2702590 B1 FR2702590 B1 FR 2702590B1 FR 9302881 A FR9302881 A FR 9302881A FR 9302881 A FR9302881 A FR 9302881A FR 2702590 B1 FR2702590 B1 FR 2702590B1
Authority
FR
France
Prior art keywords
ltp
exploring
logarithmic
dictionary
pseudo
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.)
Expired - Fee Related
Application number
FR9302881A
Other languages
English (en)
Other versions
FR2702590A1 (fr
Inventor
Dominique Massaloux
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9302881A priority Critical patent/FR2702590B1/fr
Priority to US08/205,570 priority patent/US5704002A/en
Priority to EP94400525A priority patent/EP0616315A1/fr
Publication of FR2702590A1 publication Critical patent/FR2702590A1/fr
Application granted granted Critical
Publication of FR2702590B1 publication Critical patent/FR2702590B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/04—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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks
    • 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
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR9302881A 1993-03-12 1993-03-12 Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP. Expired - Fee Related FR2702590B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9302881A FR2702590B1 (fr) 1993-03-12 1993-03-12 Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
US08/205,570 US5704002A (en) 1993-03-12 1994-03-04 Process and device for minimizing an error in a speech signal using a residue signal and a synthesized excitation signal
EP94400525A EP0616315A1 (fr) 1993-03-12 1994-03-10 Dispositif de codage et de décodage numérique de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9302881A FR2702590B1 (fr) 1993-03-12 1993-03-12 Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.

Publications (2)

Publication Number Publication Date
FR2702590A1 FR2702590A1 (fr) 1994-09-16
FR2702590B1 true FR2702590B1 (fr) 1995-04-28

Family

ID=9444907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9302881A Expired - Fee Related FR2702590B1 (fr) 1993-03-12 1993-03-12 Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.

Country Status (3)

Country Link
US (1) US5704002A (fr)
EP (1) EP0616315A1 (fr)
FR (1) FR2702590B1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
JPH09127995A (ja) * 1995-10-26 1997-05-16 Sony Corp 信号復号化方法及び信号復号化装置
JP3707116B2 (ja) * 1995-10-26 2005-10-19 ソニー株式会社 音声復号化方法及び装置
EP0788091A3 (fr) * 1996-01-31 1999-02-24 Kabushiki Kaisha Toshiba Procédé et dispositif de codage et décodage de parole
US6219641B1 (en) * 1997-12-09 2001-04-17 Michael V. Socaciu System and method of transmitting speech at low line rates
US6104994A (en) * 1998-01-13 2000-08-15 Conexant Systems, Inc. Method for speech coding under background noise conditions
JP2001109489A (ja) * 1999-08-03 2001-04-20 Canon Inc 音声情報処理方法、装置および記憶媒体
US6760698B2 (en) * 2000-09-15 2004-07-06 Mindspeed Technologies Inc. System for coding speech information using an adaptive codebook with enhanced variable resolution scheme
CN112863539B (zh) * 2019-11-28 2024-04-16 科大讯飞股份有限公司 一种高采样率语音波形生成方法、装置、设备及存储介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134000A (ja) * 1984-12-05 1986-06-21 株式会社日立製作所 音声分析合成方式
JP2903533B2 (ja) * 1989-03-22 1999-06-07 日本電気株式会社 音声符号化方式
GB2235354A (en) * 1989-08-16 1991-02-27 Philips Electronic Associated Speech coding/encoding using celp
SG47028A1 (en) * 1989-09-01 1998-03-20 Motorola Inc Digital speech coder having improved sub-sample resolution long-term predictor
US5208862A (en) * 1990-02-22 1993-05-04 Nec Corporation Speech coder
US5255339A (en) * 1991-07-19 1993-10-19 Motorola, Inc. Low bit rate vocoder means and method
US5371853A (en) * 1991-10-28 1994-12-06 University Of Maryland At College Park Method and system for CELP speech coding and codebook for use therewith

Also Published As

Publication number Publication date
US5704002A (en) 1997-12-30
EP0616315A1 (fr) 1994-09-21
FR2702590A1 (fr) 1994-09-16

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Effective date: 20101130