DE69604526D1 - Verfahren zur Anpassung des Rauschmaskierungspegels in einem Analyse-durch-Synthese-Sprachkodierer mit einem wahrnehmunggebundenen Kurzzeitfilter - Google Patents

Verfahren zur Anpassung des Rauschmaskierungspegels in einem Analyse-durch-Synthese-Sprachkodierer mit einem wahrnehmunggebundenen Kurzzeitfilter

Info

Publication number
DE69604526D1
DE69604526D1 DE69604526T DE69604526T DE69604526D1 DE 69604526 D1 DE69604526 D1 DE 69604526D1 DE 69604526 T DE69604526 T DE 69604526T DE 69604526 T DE69604526 T DE 69604526T DE 69604526 D1 DE69604526 D1 DE 69604526D1
Authority
DE
Germany
Prior art keywords
perceptual
analysis
adjusting
short
speech coder
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 - Lifetime
Application number
DE69604526T
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English (en)
Other versions
DE69604526T2 (de
Inventor
Stephane Proust
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Application granted granted Critical
Publication of DE69604526D1 publication Critical patent/DE69604526D1/de
Publication of DE69604526T2 publication Critical patent/DE69604526T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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

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)
  • Filters That Use Time-Delay Elements (AREA)
DE69604526T 1995-05-17 1996-05-14 Verfahren zur Anpassung des Rauschmaskierungspegels in einem Analyse-durch-Synthese-Sprachkodierer mit einem wahrnehmunggebundenen Kurzzeitfilter Expired - Lifetime DE69604526T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9505851A FR2734389B1 (fr) 1995-05-17 1995-05-17 Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme

Publications (2)

Publication Number Publication Date
DE69604526D1 true DE69604526D1 (de) 1999-11-11
DE69604526T2 DE69604526T2 (de) 2000-07-20

Family

ID=9479077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69604526T Expired - Lifetime DE69604526T2 (de) 1995-05-17 1996-05-14 Verfahren zur Anpassung des Rauschmaskierungspegels in einem Analyse-durch-Synthese-Sprachkodierer mit einem wahrnehmunggebundenen Kurzzeitfilter

Country Status (9)

Country Link
US (1) US5845244A (de)
EP (1) EP0743634B1 (de)
JP (1) JP3481390B2 (de)
KR (1) KR100389692B1 (de)
CN (1) CN1112671C (de)
CA (1) CA2176665C (de)
DE (1) DE69604526T2 (de)
FR (1) FR2734389B1 (de)
HK (1) HK1003735A1 (de)

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JP2002062899A (ja) * 2000-08-23 2002-02-28 Sony Corp データ処理装置およびデータ処理方法、学習装置および学習方法、並びに記録媒体
US6678651B2 (en) * 2000-09-15 2004-01-13 Mindspeed Technologies, Inc. Short-term enhancement in CELP speech coding
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US6842733B1 (en) * 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
US7010480B2 (en) * 2000-09-15 2006-03-07 Mindspeed Technologies, Inc. Controlling a weighting filter based on the spectral content of a speech signal
US7606703B2 (en) * 2000-11-15 2009-10-20 Texas Instruments Incorporated Layered celp system and method with varying perceptual filter or short-term postfilter strengths
JP4857468B2 (ja) * 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
JP4857467B2 (ja) * 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
DE10121532A1 (de) * 2001-05-03 2002-11-07 Siemens Ag Verfahren und Vorrichtung zur automatischen Differenzierung und/oder Detektion akustischer Signale
US6871176B2 (en) * 2001-07-26 2005-03-22 Freescale Semiconductor, Inc. Phase excited linear prediction encoder
CN100369111C (zh) * 2002-10-31 2008-02-13 富士通株式会社 话音增强装置
US7054807B2 (en) * 2002-11-08 2006-05-30 Motorola, Inc. Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters
US20040098255A1 (en) * 2002-11-14 2004-05-20 France Telecom Generalized analysis-by-synthesis speech coding method, and coder implementing such method
US7263481B2 (en) * 2003-01-09 2007-08-28 Dilithium Networks Pty Limited Method and apparatus for improved quality voice transcoding
KR100554164B1 (ko) * 2003-07-11 2006-02-22 학교법인연세대학교 서로 다른 ｃｅｌｐ 방식의 음성 코덱 간의 상호부호화장치 및 그 방법
US7792670B2 (en) * 2003-12-19 2010-09-07 Motorola, Inc. Method and apparatus for speech coding
US7668712B2 (en) * 2004-03-31 2010-02-23 Microsoft Corporation Audio encoding and decoding with intra frames and adaptive forward error correction
US7831421B2 (en) * 2005-05-31 2010-11-09 Microsoft Corporation Robust decoder
US7177804B2 (en) 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
US7707034B2 (en) * 2005-05-31 2010-04-27 Microsoft Corporation Audio codec post-filter
ES2347473T3 (es) * 2005-12-05 2010-10-29 Qualcomm Incorporated Procedimiento y aparato de deteccion de componentes tonales de señales de audio.
EP1989706B1 (de) * 2006-02-14 2011-10-26 France Telecom Vorrichtung für wahrnehmungsgewichtung bei der tonkodierung/-dekodierung
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US9728200B2 (en) 2013-01-29 2017-08-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive formant sharpening in linear prediction coding
EP3079151A1 (de) 2015-04-09 2016-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiocodierer und verfahren zur codierung eines audiosignals
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US10756755B2 (en) * 2016-05-10 2020-08-25 Immersion Networks, Inc. Adaptive audio codec system, method and article
US10770088B2 (en) * 2016-05-10 2020-09-08 Immersion Networks, Inc. Adaptive audio decoder system, method and article
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Also Published As

Publication number Publication date
EP0743634B1 (de) 1999-10-06
KR960042516A (ko) 1996-12-21
FR2734389A1 (fr) 1996-11-22
DE69604526T2 (de) 2000-07-20
US5845244A (en) 1998-12-01
HK1003735A1 (en) 1998-11-06
FR2734389B1 (fr) 1997-07-18
CA2176665C (en) 2005-05-03
CN1112671C (zh) 2003-06-25
CA2176665A1 (en) 1996-11-18
CN1138183A (zh) 1996-12-18
KR100389692B1 (ko) 2003-11-17
EP0743634A1 (de) 1996-11-20
JP3481390B2 (ja) 2003-12-22
JPH08328591A (ja) 1996-12-13

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