MY120387A - Quantization in perceptual audio coders with compensation for synthesis filter noise spreading. - Google Patents

Quantization in perceptual audio coders with compensation for synthesis filter noise spreading.

Info

Publication number
MY120387A
MY120387A MYPI20001499A MYPI20001499A MY120387A MY 120387 A MY120387 A MY 120387A MY PI20001499 A MYPI20001499 A MY PI20001499A MY PI20001499 A MYPI20001499 A MY PI20001499A MY 120387 A MY120387 A MY 120387A
Authority
MY
Malaysia
Prior art keywords
split
quantization
synthesis
synthesis filters
noise
Prior art date
Application number
MYPI20001499A
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
Publication of MY120387A publication Critical patent/MY120387A/en

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)
MYPI20001499A 1999-04-12 2000-04-11 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading. MY120387A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
MY120387A true MY120387A (en) 2005-10-31

Family

ID=23113455

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20001499A MY120387A (en) 1999-04-12 2000-04-11 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading.

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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US7376553B2 (en) * 2003-07-08 2008-05-20 Robert Patel Quinn Fractal harmonic overtone mapping of speech and musical sounds
US20070067166A1 (en) * 2003-09-17 2007-03-22 Xingde Pan Method and device of multi-resolution vector quantilization for audio encoding and decoding
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DE102004009955B3 (de) * 2004-03-01 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
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
US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US7760887B2 (en) * 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
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US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
US7593539B2 (en) * 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
US7970150B2 (en) * 2005-04-29 2011-06-28 Lifesize Communications, Inc. Tracking talkers using virtual broadside scan and directed beams
US7974713B2 (en) * 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
US7835904B2 (en) * 2006-03-03 2010-11-16 Microsoft Corp. Perceptual, scalable audio compression
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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
AR024858A1 (es) 2002-10-30
EP1177639A1 (en) 2002-02-06
DE60004814T2 (de) 2004-07-01
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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