[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

HK1003735A1 - Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter - Google Patents

Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter

Info

Publication number
HK1003735A1
HK1003735A1 HK98102733A HK98102733A HK1003735A1 HK 1003735 A1 HK1003735 A1 HK 1003735A1 HK 98102733 A HK98102733 A HK 98102733A HK 98102733 A HK98102733 A HK 98102733A HK 1003735 A1 HK1003735 A1 HK 1003735A1
Authority
HK
Hong Kong
Prior art keywords
adapting
analysis
short
speech coder
weighting filter
Prior art date
Application number
HK98102733A
Other languages
English (en)
Inventor
Stephane Proust
Original Assignee
France Telecom
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 filed Critical France Telecom
Publication of HK1003735A1 publication Critical patent/HK1003735A1/xx

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)
HK98102733A 1995-05-17 1998-04-01 Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter HK1003735A1 (en)

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 (1)

Publication Number Publication Date
HK1003735A1 true HK1003735A1 (en) 1998-11-06

Family

ID=9479077

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98102733A HK1003735A1 (en) 1995-05-17 1998-04-01 Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter

Country Status (9)

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

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621852A (en) 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
TW376611B (en) * 1998-05-26 1999-12-11 Koninkl Philips Electronics Nv Transmission system with improved speech encoder
US6304843B1 (en) * 1999-01-05 2001-10-16 Motorola, Inc. Method and apparatus for reconstructing a linear prediction filter excitation signal
GB2348342B (en) * 1999-03-25 2004-01-21 Roke Manor Research Improvements in or relating to telecommunication systems
USRE43209E1 (en) 1999-11-08 2012-02-21 Mitsubishi Denki Kabushiki Kaisha Speech coding apparatus and speech decoding apparatus
JP3594854B2 (ja) 1999-11-08 2004-12-02 三菱電機株式会社 音声符号化装置及び音声復号化装置
DE60140020D1 (de) * 2000-08-09 2009-11-05 Sony Corp Sprachdatenverarbeitungsvorrichtung und -verarbeitungsverfahren
US7283961B2 (en) 2000-08-09 2007-10-16 Sony Corporation High-quality speech synthesis device and method by classification and prediction processing of synthesized sound
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
JP4517262B2 (ja) * 2000-11-14 2010-08-04 ソニー株式会社 音声処理装置および音声処理方法、学習装置および学習方法、並びに記録媒体
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US6678651B2 (en) * 2000-09-15 2004-01-13 Mindspeed Technologies, Inc. Short-term enhancement in CELP 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
US6842733B1 (en) * 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
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
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
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
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
WO2004040555A1 (fr) * 2002-10-31 2004-05-13 Fujitsu Limited Intensificateur de voix
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
WO2004064041A1 (fr) * 2003-01-09 2004-07-29 Dilithium Networks Pty Limited Procede et appareil visant a ameliorer la qualite du transcodage de la voix
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
TWI330355B (en) * 2005-12-05 2010-09-11 Qualcomm Inc Systems, methods, and apparatus for detection of tonal components
WO2007093726A2 (fr) * 2006-02-14 2007-08-23 France Telecom Dispositif de ponderation perceptuelle en codage/decodage audio
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
US8271273B2 (en) * 2007-10-04 2012-09-18 Huawei Technologies Co., Ltd. Adaptive approach to improve G.711 perceptual quality
WO2010084756A1 (fr) * 2009-01-22 2010-07-29 パナソニック株式会社 Appareil d'encodage de signal acoustique stéréo, appareil de décodage de signal acoustique stéréo, et procédés pour ces appareils
JP5331901B2 (ja) * 2009-12-21 2013-10-30 富士通株式会社 音声制御装置
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 (fr) 2015-04-09 2016-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur audio et procédé de codage d'un signal audio
US10756755B2 (en) * 2016-05-10 2020-08-25 Immersion Networks, Inc. Adaptive audio codec system, method and article
US20170330575A1 (en) * 2016-05-10 2017-11-16 Immersion Services LLC 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
US10699725B2 (en) * 2016-05-10 2020-06-30 Immersion Networks, Inc. Adaptive audio encoder system, method and article
US11380343B2 (en) 2019-09-12 2022-07-05 Immersion Networks, Inc. Systems and methods for processing high frequency audio signal

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731846A (en) * 1983-04-13 1988-03-15 Texas Instruments Incorporated Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal
IT1180126B (it) * 1984-11-13 1987-09-23 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
WO1990013112A1 (fr) * 1989-04-25 1990-11-01 Kabushiki Kaisha Toshiba Codeur vocal
EP0401452B1 (fr) * 1989-06-07 1994-03-23 International Business Machines Corporation Codeur de la parole à faible débit et à faible retard
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JPH04284500A (ja) * 1991-03-14 1992-10-09 Nippon Telegr & Teleph Corp <Ntt> 低遅延符号駆動型予測符号化方法
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
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
IT1257065B (it) * 1992-07-31 1996-01-05 Sip Codificatore a basso ritardo per segnali audio, utilizzante tecniche di analisi per sintesi.
JPH0744196A (ja) * 1993-07-29 1995-02-14 Olympus Optical Co Ltd 音声符号化復号化装置
US5615298A (en) * 1994-03-14 1997-03-25 Lucent Technologies Inc. Excitation signal synthesis during frame erasure or packet loss
US5574825A (en) * 1994-03-14 1996-11-12 Lucent Technologies Inc. Linear prediction coefficient generation during frame erasure or packet loss
JP2970407B2 (ja) * 1994-06-21 1999-11-02 日本電気株式会社 音声の励振信号符号化装置

Also Published As

Publication number Publication date
DE69604526T2 (de) 2000-07-20
FR2734389B1 (fr) 1997-07-18
CN1112671C (zh) 2003-06-25
US5845244A (en) 1998-12-01
CA2176665C (fr) 2005-05-03
KR100389692B1 (ko) 2003-11-17
CA2176665A1 (fr) 1996-11-18
JP3481390B2 (ja) 2003-12-22
KR960042516A (ko) 1996-12-21
DE69604526D1 (de) 1999-11-11
JPH08328591A (ja) 1996-12-13
EP0743634A1 (fr) 1996-11-20
FR2734389A1 (fr) 1996-11-22
CN1138183A (zh) 1996-12-18
EP0743634B1 (fr) 1999-10-06

Similar Documents

Publication Publication Date Title
HK1003735A1 (en) Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter
EP0680033A3 (fr) Modification du débit de parole pour codeurs de parole du type analyse-par-synthèse basée sur prédiction linéaire.
EP0731449A3 (fr) Procédé pour la modification des coefficients des signaux acoustiques de codage à prédiction linéaire
GB2333877B (en) Method of evaluating an utterance in a speech recognition system
HUP9800843A3 (en) Method and apparatus for suppressing noise, speech coder
FI953252A (fi) Menetelmä odotusajan selvittämiseksi puhekooderissa epäjatkuvassa lähetyksessä ja puhekooderi sekä lähetin-vastaanotin
HK1038422A1 (en) Speech encoder and method of searching a codebook
AU4887696A (en) Speech recognition
AU5464996A (en) Voice/unvoiced classification of speech for use in speech decoding during frame erasures
AU3683195A (en) Method and apparatus for determining the thickness of a well bore casing
HK1048187B (zh) 語音可變速率編碼方法與設備
DE69819951D1 (de) Spracherkenner mit Rauschadaptierung
DE69708693D1 (de) Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung
AU4313897A (en) Method and apparatus for processing the output of a speech recognition engine
EP0701245A3 (fr) Dispositif de reconnaissance de la parole
DE69636209D1 (de) Vorrichtung zur Sprachkodierung
AU6645096A (en) Speech synthesizer having an acoustic element database
EP0779609A3 (fr) Système d&#39;adaptation des signaux de parole et de reconnaissance de la parole
AU4490396A (en) Analysis-by-synthesis speech coding method
FI944343A0 (fi) Kohinanvaimennusmenetelmä, erityisesti automaattista puheentunnistusta varten, ja suodatin menetelmän toteuttamiseksi
GB2280828B (en) Method for generating a spectral noise weighting filter for use in a speech coder
AU5519696A (en) A gain quantization method in analysis-by-synthesis linear p redictive speech coding
DE69510147D1 (de) Perzeptueller Teilbandkodierer
AU642311B2 (en) Method and system for speech recognition without noise interference
AU7727391A (en) Speech recognition method with noise reduction and a system therefor

Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20160513