DE60004814T2 - Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens - Google Patents

Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens Download PDF

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Publication number
DE60004814T2
DE60004814T2 DE60004814T DE60004814T DE60004814T2 DE 60004814 T2 DE60004814 T2 DE 60004814T2 DE 60004814 T DE60004814 T DE 60004814T DE 60004814 T DE60004814 T DE 60004814T DE 60004814 T2 DE60004814 T2 DE 60004814T2
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noise
quantization
synthesis filter
subband
propagation model
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Expired - Lifetime
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DE60004814T
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German (de)
English (en)
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DE60004814D1 (de
Inventor
Wamanrao Anil UBALE
Allen Grant DAVIDSON
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Dolby Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/0204—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 using subband decomposition

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  • 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)
DE60004814T 1999-04-12 2000-04-10 Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens Expired - Lifetime DE60004814T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/289,865 US6363338B1 (en) 1999-04-12 1999-04-12 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading
US289865 1999-04-12
PCT/US2000/009557 WO2000062434A1 (en) 1999-04-12 2000-04-10 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading

Publications (2)

Publication Number Publication Date
DE60004814D1 DE60004814D1 (de) 2003-10-02
DE60004814T2 true DE60004814T2 (de) 2004-07-01

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DE60004814T Expired - Lifetime DE60004814T2 (de) 1999-04-12 2000-04-10 Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens

Country Status (13)

Country Link
US (1) US6363338B1 (enExample)
EP (1) EP1177639B1 (enExample)
JP (1) JP4643019B2 (enExample)
KR (1) KR100758215B1 (enExample)
AR (1) AR024858A1 (enExample)
AT (1) ATE248463T1 (enExample)
AU (1) AU771869B2 (enExample)
CA (1) CA2366560C (enExample)
DE (1) DE60004814T2 (enExample)
HK (1) HK1044235B (enExample)
MY (1) MY120387A (enExample)
TW (1) TW531986B (enExample)
WO (1) WO2000062434A1 (enExample)

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US7512536B2 (en) * 2004-05-14 2009-03-31 Texas Instruments Incorporated Efficient filter bank computation for audio coding
US7720236B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7720232B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7826624B2 (en) * 2004-10-15 2010-11-02 Lifesize Communications, Inc. Speakerphone self calibration and beam forming
US20060132595A1 (en) * 2004-10-15 2006-06-22 Kenoyer Michael L Speakerphone supporting video and audio features
US8116500B2 (en) * 2004-10-15 2012-02-14 Lifesize Communications, Inc. Microphone orientation and size in a speakerphone
US7970151B2 (en) * 2004-10-15 2011-06-28 Lifesize Communications, Inc. Hybrid beamforming
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US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
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US7835904B2 (en) * 2006-03-03 2010-11-16 Microsoft Corp. Perceptual, scalable audio compression
KR101393298B1 (ko) * 2006-07-08 2014-05-12 삼성전자주식회사 적응적 부호화/복호화 방법 및 장치
US8706507B2 (en) * 2006-08-15 2014-04-22 Dolby Laboratories Licensing Corporation Arbitrary shaping of temporal noise envelope without side-information utilizing unchanged quantization
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Also Published As

Publication number Publication date
KR100758215B1 (ko) 2007-09-12
CA2366560C (en) 2008-07-29
AU4338200A (en) 2000-11-14
AU771869B2 (en) 2004-04-01
DE60004814D1 (de) 2003-10-02
US6363338B1 (en) 2002-03-26
CA2366560A1 (en) 2000-10-19
MY120387A (en) 2005-10-31
AR024858A1 (es) 2002-10-30
EP1177639A1 (en) 2002-02-06
EP1177639B1 (en) 2003-08-27
TW531986B (en) 2003-05-11
JP2002542648A (ja) 2002-12-10
KR20010112423A (ko) 2001-12-20
ATE248463T1 (de) 2003-09-15
JP4643019B2 (ja) 2011-03-02
HK1044235B (en) 2003-12-24
WO2000062434A1 (en) 2000-10-19
HK1044235A1 (en) 2002-10-11

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