ATE248463T1 - 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

Info

Publication number
ATE248463T1
ATE248463T1 AT00923218T AT00923218T ATE248463T1 AT E248463 T1 ATE248463 T1 AT E248463T1 AT 00923218 T AT00923218 T AT 00923218T AT 00923218 T AT00923218 T AT 00923218T AT E248463 T1 ATE248463 T1 AT E248463T1
Authority
AT
Austria
Prior art keywords
smeared
quantization
compensation
noise
synthesis filter
Prior art date
Application number
AT00923218T
Other languages
English (en)
Inventor
Anil Wamanrao Ubale
Grant Allen Davidson
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of ATE248463T1 publication Critical patent/ATE248463T1/de

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
    • G10L19/02—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

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)
AT00923218T 1999-04-12 2000-04-10 Quantisierung in perzeptuellen audiokodierern mit kompensation des durch den synthesefilter verschmierten rauschens ATE248463T1 (de)

Applications Claiming Priority (2)

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
PCT/US2000/009557 WO2000062434A1 (en) 1999-04-12 2000-04-10 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading

Publications (1)

Publication Number Publication Date
ATE248463T1 true ATE248463T1 (de) 2003-09-15

Family

ID=23113455

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00923218T ATE248463T1 (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 (de)
EP (1) EP1177639B1 (de)
JP (1) JP4643019B2 (de)
KR (1) KR100758215B1 (de)
AR (1) AR024858A1 (de)
AT (1) ATE248463T1 (de)
AU (1) AU771869B2 (de)
CA (1) CA2366560C (de)
DE (1) DE60004814T2 (de)
HK (1) HK1044235B (de)
MY (1) MY120387A (de)
TW (1) TW531986B (de)
WO (1) WO2000062434A1 (de)

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US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
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Also Published As

Publication number Publication date
CA2366560C (en) 2008-07-29
AR024858A1 (es) 2002-10-30
JP2002542648A (ja) 2002-12-10
TW531986B (en) 2003-05-11
US6363338B1 (en) 2002-03-26
MY120387A (en) 2005-10-31
DE60004814D1 (de) 2003-10-02
HK1044235A1 (en) 2002-10-11
AU771869B2 (en) 2004-04-01
WO2000062434A1 (en) 2000-10-19
JP4643019B2 (ja) 2011-03-02
KR20010112423A (ko) 2001-12-20
AU4338200A (en) 2000-11-14
CA2366560A1 (en) 2000-10-19
EP1177639A1 (de) 2002-02-06
HK1044235B (en) 2003-12-24
DE60004814T2 (de) 2004-07-01
EP1177639B1 (de) 2003-08-27
KR100758215B1 (ko) 2007-09-12

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