DK1581928T3 - Reduktion af skalafaktor transmissionsomkostninger for en MPEG-2 AAC under anvendelse af et gitter - Google Patents

Reduktion af skalafaktor transmissionsomkostninger for en MPEG-2 AAC under anvendelse af et gitter

Info

Publication number
DK1581928T3
DK1581928T3 DK03808458T DK03808458T DK1581928T3 DK 1581928 T3 DK1581928 T3 DK 1581928T3 DK 03808458 T DK03808458 T DK 03808458T DK 03808458 T DK03808458 T DK 03808458T DK 1581928 T3 DK1581928 T3 DK 1581928T3
Authority
DK
Denmark
Prior art keywords
scale factor
frequency bands
band
reduction
ones
Prior art date
Application number
DK03808458T
Other languages
English (en)
Inventor
Mark Stuart Vinton
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 DK1581928T3 publication Critical patent/DK1581928T3/da

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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
    • G10L19/035—Scalar quantisation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Peptides Or Proteins (AREA)
DK03808458T 2003-01-02 2003-12-16 Reduktion af skalafaktor transmissionsomkostninger for en MPEG-2 AAC under anvendelse af et gitter DK1581928T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/336,637 US7272566B2 (en) 2003-01-02 2003-01-02 Reducing scale factor transmission cost for MPEG-2 advanced audio coding (AAC) using a lattice based post processing technique
PCT/US2003/040173 WO2004061823A1 (en) 2003-01-02 2003-12-16 Reducing scale factor transmission cost for mpeg-2 aac using a lattice

Publications (1)

Publication Number Publication Date
DK1581928T3 true DK1581928T3 (da) 2009-01-19

Family

ID=32681060

Family Applications (1)

Application Number Title Priority Date Filing Date
DK03808458T DK1581928T3 (da) 2003-01-02 2003-12-16 Reduktion af skalafaktor transmissionsomkostninger for en MPEG-2 AAC under anvendelse af et gitter

Country Status (18)

Country Link
US (1) US7272566B2 (da)
EP (1) EP1581928B1 (da)
JP (1) JP4425148B2 (da)
KR (1) KR101045520B1 (da)
CN (1) CN1735925B (da)
AT (1) ATE412960T1 (da)
AU (1) AU2003303495B2 (da)
CA (1) CA2507535C (da)
DE (1) DE60324465D1 (da)
DK (1) DK1581928T3 (da)
ES (1) ES2312852T3 (da)
HK (1) HK1079327A1 (da)
IL (1) IL168636A (da)
MX (1) MXPA05007183A (da)
MY (1) MY138588A (da)
PL (1) PL208346B1 (da)
TW (1) TWI335145B (da)
WO (1) WO2004061823A1 (da)

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US7949520B2 (en) * 2004-10-26 2011-05-24 QNX Software Sytems Co. Adaptive filter pitch extraction
US8543390B2 (en) 2004-10-26 2013-09-24 Qnx Software Systems Limited Multi-channel periodic signal enhancement system
US8306821B2 (en) 2004-10-26 2012-11-06 Qnx Software Systems Limited Sub-band periodic signal enhancement system
US7680652B2 (en) * 2004-10-26 2010-03-16 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
US7610196B2 (en) * 2004-10-26 2009-10-27 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
US7716046B2 (en) * 2004-10-26 2010-05-11 Qnx Software Systems (Wavemakers), Inc. Advanced periodic signal enhancement
US8170879B2 (en) * 2004-10-26 2012-05-01 Qnx Software Systems Limited Periodic signal enhancement system
KR100707173B1 (ko) * 2004-12-21 2007-04-13 삼성전자주식회사 저비트율 부호화/복호화방법 및 장치
US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
EP3985873A1 (en) * 2006-07-04 2022-04-20 Dolby International AB Filter system comprising a filter converter and a filter compressor and method for operating the filter system
US8010370B2 (en) * 2006-07-28 2011-08-30 Apple Inc. Bitrate control for perceptual coding
US8032371B2 (en) * 2006-07-28 2011-10-04 Apple Inc. Determining scale factor values in encoding audio data with AAC
CN101308659B (zh) * 2007-05-16 2011-11-30 中兴通讯股份有限公司 一种基于先进音频编码器的心理声学模型的处理方法
WO2009001874A1 (ja) * 2007-06-27 2008-12-31 Nec Corporation オーディオ符号化方法、オーディオ復号方法、オーディオ符号化装置、オーディオ復号装置、プログラム、およびオーディオ符号化・復号システム
US20110035212A1 (en) * 2007-08-27 2011-02-10 Telefonaktiebolaget L M Ericsson (Publ) Transform coding of speech and audio signals
US8850154B2 (en) 2007-09-11 2014-09-30 2236008 Ontario Inc. Processing system having memory partitioning
US8904400B2 (en) 2007-09-11 2014-12-02 2236008 Ontario Inc. Processing system having a partitioning component for resource partitioning
US8694310B2 (en) 2007-09-17 2014-04-08 Qnx Software Systems Limited Remote control server protocol system
CN101854175B (zh) * 2007-10-12 2013-04-17 联咏科技股份有限公司 可降低信号功率频谱密度的编码方法
GB2454190A (en) * 2007-10-30 2009-05-06 Cambridge Silicon Radio Ltd Minimising a cost function in encoding data using spectral partitioning
US8209514B2 (en) 2008-02-04 2012-06-26 Qnx Software Systems Limited Media processing system having resource partitioning
EP2274833B1 (en) * 2008-04-16 2016-08-10 Huawei Technologies Co., Ltd. Vector quantisation method
US8290782B2 (en) * 2008-07-24 2012-10-16 Dts, Inc. Compression of audio scale-factors by two-dimensional transformation
JP5304504B2 (ja) * 2009-07-17 2013-10-02 ソニー株式会社 信号符号化装置、信号復号装置、信号処理システム、これらにおける処理方法およびプログラム
EP2346031B1 (en) * 2009-11-26 2015-09-30 BlackBerry Limited Rate-distortion optimization for advanced audio coding
US8380524B2 (en) * 2009-11-26 2013-02-19 Research In Motion Limited Rate-distortion optimization for advanced audio coding
MY186720A (en) 2011-05-13 2021-08-12 Samsung Electronics Co Ltd Bit allocating, audio encoding and decoding
US9293146B2 (en) * 2012-09-04 2016-03-22 Apple Inc. Intensity stereo coding in advanced audio coding
US20140344159A1 (en) * 2013-05-20 2014-11-20 Dell Products, Lp License Key Generation
EP2830058A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequency-domain audio coding supporting transform length switching
TWI557726B (zh) * 2013-08-29 2016-11-11 杜比國際公司 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法
US10354668B2 (en) 2017-03-22 2019-07-16 Immersion Networks, Inc. System and method for processing audio data
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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
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US6430533B1 (en) * 1996-05-03 2002-08-06 Lsi Logic Corporation Audio decoder core MPEG-1/MPEG-2/AC-3 functional algorithm partitioning and implementation
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US6934677B2 (en) * 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7027982B2 (en) * 2001-12-14 2006-04-11 Microsoft Corporation Quality and rate control strategy for digital audio

Also Published As

Publication number Publication date
WO2004061823A1 (en) 2004-07-22
JP4425148B2 (ja) 2010-03-03
EP1581928A1 (en) 2005-10-05
DE60324465D1 (de) 2008-12-11
JP2006512617A (ja) 2006-04-13
AU2003303495A1 (en) 2004-07-29
PL377709A1 (pl) 2006-02-06
CA2507535C (en) 2013-02-12
KR20050089870A (ko) 2005-09-08
CA2507535A1 (en) 2004-07-22
KR101045520B1 (ko) 2011-06-30
US7272566B2 (en) 2007-09-18
ES2312852T3 (es) 2009-03-01
CN1735925A (zh) 2006-02-15
PL208346B1 (pl) 2011-04-29
MY138588A (en) 2009-07-31
TWI335145B (en) 2010-12-21
ATE412960T1 (de) 2008-11-15
EP1581928B1 (en) 2008-10-29
AU2003303495B2 (en) 2009-02-19
CN1735925B (zh) 2010-04-28
TW200419929A (en) 2004-10-01
US20040131204A1 (en) 2004-07-08
MXPA05007183A (es) 2005-09-12
IL168636A (en) 2011-01-31
HK1079327A1 (en) 2006-03-31

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