ATE502377T1 - Kodierung digitaler audiosignale - Google Patents

Kodierung digitaler audiosignale

Info

Publication number
ATE502377T1
ATE502377T1 AT08805994T AT08805994T ATE502377T1 AT E502377 T1 ATE502377 T1 AT E502377T1 AT 08805994 T AT08805994 T AT 08805994T AT 08805994 T AT08805994 T AT 08805994T AT E502377 T1 ATE502377 T1 AT E502377T1
Authority
AT
Austria
Prior art keywords
quantification
module
signal
indexes
encoder
Prior art date
Application number
AT08805994T
Other languages
English (en)
Inventor
Balazs Kovesi
Guyader Alain Le
Stephane Ragot
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
Application granted granted Critical
Publication of ATE502377T1 publication Critical patent/ATE502377T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Dental Preparations (AREA)
AT08805994T 2007-06-15 2008-06-13 Kodierung digitaler audiosignale ATE502377T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0755792 2007-06-15
PCT/FR2008/051059 WO2009004227A1 (fr) 2007-06-15 2008-06-13 Codage de signaux audionumériques

Publications (1)

Publication Number Publication Date
ATE502377T1 true ATE502377T1 (de) 2011-04-15

Family

ID=38577930

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08805994T ATE502377T1 (de) 2007-06-15 2008-06-13 Kodierung digitaler audiosignale

Country Status (9)

Country Link
US (1) US8719012B2 (de)
EP (1) EP2171713B1 (de)
JP (1) JP5451603B2 (de)
AT (1) ATE502377T1 (de)
BR (1) BRPI0813178B1 (de)
DE (1) DE602008005593D1 (de)
ES (1) ES2363190T3 (de)
PL (1) PL2171713T3 (de)
WO (1) WO2009004227A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2938688A1 (fr) * 2008-11-18 2010-05-21 France Telecom Codage avec mise en forme du bruit dans un codeur hierarchique
FR2969360A1 (fr) * 2010-12-16 2012-06-22 France Telecom Codage perfectionne d'un etage d'amelioration dans un codeur hierarchique
PL3139382T3 (pl) 2014-05-01 2019-11-29 Nippon Telegraph & Telephone Urządzenie kodujące sygnał dźwiękowy, sposób kodowania sygnału dźwiękowego, program i nośnik rejestrujący
CN115691536B (zh) * 2022-11-15 2025-08-22 湖南联智科技股份有限公司 一种应用于工业音频处理的音频消噪方法、设备及介质

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331405B1 (de) 1988-02-29 1996-11-27 Sony Corporation Verfahren und Einrichtung zur Digitalsignalverarbeitung
JP2551147B2 (ja) * 1989-05-19 1996-11-06 国際電信電話株式会社 音声符号化方式
JPH03181232A (ja) * 1989-12-11 1991-08-07 Toshiba Corp 可変レート符号化方式
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
DE69431223T2 (de) 1993-06-29 2006-03-02 Sony Corp. Gerät und Verfahren zur Tonsignalübertragung
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US6496798B1 (en) * 1999-09-30 2002-12-17 Motorola, Inc. Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message
JP3559488B2 (ja) * 2000-02-16 2004-09-02 日本電信電話株式会社 音響信号の階層符号化方法及び復号化方法
US6584438B1 (en) * 2000-04-24 2003-06-24 Qualcomm Incorporated Frame erasure compensation method in a variable rate speech coder
FR2859566B1 (fr) * 2003-09-05 2010-11-05 Eads Telecom Procede de transmission d'un flux d'information par insertion a l'interieur d'un flux de donnees de parole, et codec parametrique pour sa mise en oeuvre
US7930176B2 (en) * 2005-05-20 2011-04-19 Broadcom Corporation Packet loss concealment for block-independent speech codecs
US8706480B2 (en) * 2007-06-11 2014-04-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder for encoding an audio signal having an impulse-like portion and stationary portion, encoding methods, decoder, decoding method, and encoding audio signal

Also Published As

Publication number Publication date
ES2363190T3 (es) 2011-07-26
EP2171713A1 (de) 2010-04-07
US8719012B2 (en) 2014-05-06
US20100145712A1 (en) 2010-06-10
BRPI0813178A2 (pt) 2014-12-23
JP2010532489A (ja) 2010-10-07
WO2009004227A1 (fr) 2009-01-08
PL2171713T3 (pl) 2011-08-31
EP2171713B1 (de) 2011-03-16
DE602008005593D1 (de) 2011-04-28
BRPI0813178B1 (pt) 2020-05-12
JP5451603B2 (ja) 2014-03-26

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