ATE412960T1 - Verringerung von skalierungsfaktor- übertragungskosten für mpeg-2-aac unter verwendung eines gitters - Google Patents

Verringerung von skalierungsfaktor- übertragungskosten für mpeg-2-aac unter verwendung eines gitters

Info

Publication number
ATE412960T1
ATE412960T1 AT03808458T AT03808458T ATE412960T1 AT E412960 T1 ATE412960 T1 AT E412960T1 AT 03808458 T AT03808458 T AT 03808458T AT 03808458 T AT03808458 T AT 03808458T AT E412960 T1 ATE412960 T1 AT E412960T1
Authority
AT
Austria
Prior art keywords
scale factor
frequency bands
band
ones
aac
Prior art date
Application number
AT03808458T
Other languages
English (en)
Inventor
Mark 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 ATE412960T1 publication Critical patent/ATE412960T1/de

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
AT03808458T 2003-01-02 2003-12-16 Verringerung von skalierungsfaktor- übertragungskosten für mpeg-2-aac unter verwendung eines gitters ATE412960T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE412960T1 true ATE412960T1 (de) 2008-11-15

Family

ID=32681060

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03808458T ATE412960T1 (de) 2003-01-02 2003-12-16 Verringerung von skalierungsfaktor- übertragungskosten für mpeg-2-aac unter verwendung eines gitters

Country Status (18)

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

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US7680652B2 (en) * 2004-10-26 2010-03-16 Qnx Software Systems (Wavemakers), Inc. Periodic signal enhancement system
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US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
ES2623226T3 (es) * 2006-07-04 2017-07-10 Dolby International Ab Unidad de filtro y procedimiento de generación de respuestas al impulso de filtro de subbanda
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
EP2159790B1 (de) * 2007-06-27 2019-11-13 NEC Corporation Audiokodierungsverfahren, audiodekodierungsverfahren, audiokodierungseinrichtung, audiodekodierungseinrichtung, programm und audiokodierungs-/-dekodierungssystem
US20110035212A1 (en) * 2007-08-27 2011-02-10 Telefonaktiebolaget L M Ericsson (Publ) Transform coding of speech and audio signals
US8904400B2 (en) 2007-09-11 2014-12-02 2236008 Ontario Inc. Processing system having a partitioning component for resource partitioning
US8850154B2 (en) 2007-09-11 2014-09-30 2236008 Ontario Inc. Processing system having memory 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
CN102132494B (zh) * 2008-04-16 2013-10-02 华为技术有限公司 通信方法和通信装置
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
US8380524B2 (en) * 2009-11-26 2013-02-19 Research In Motion Limited Rate-distortion optimization for advanced audio coding
EP2346031B1 (de) * 2009-11-26 2015-09-30 BlackBerry Limited Raten-Verzerrungsoptimierung für eine erweiterte Audiokodierung
RU2648595C2 (ru) 2011-05-13 2018-03-26 Самсунг Электроникс Ко., Лтд. Распределение битов, кодирование и декодирование аудио
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 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
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
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Also Published As

Publication number Publication date
DK1581928T3 (da) 2009-01-19
CA2507535A1 (en) 2004-07-22
AU2003303495B2 (en) 2009-02-19
CN1735925A (zh) 2006-02-15
EP1581928A1 (de) 2005-10-05
KR101045520B1 (ko) 2011-06-30
DE60324465D1 (de) 2008-12-11
MXPA05007183A (es) 2005-09-12
PL377709A1 (pl) 2006-02-06
WO2004061823A1 (en) 2004-07-22
EP1581928B1 (de) 2008-10-29
US7272566B2 (en) 2007-09-18
JP2006512617A (ja) 2006-04-13
CN1735925B (zh) 2010-04-28
MY138588A (en) 2009-07-31
PL208346B1 (pl) 2011-04-29
IL168636A (en) 2011-01-31
TW200419929A (en) 2004-10-01
AU2003303495A1 (en) 2004-07-29
CA2507535C (en) 2013-02-12
HK1079327A1 (en) 2006-03-31
ES2312852T3 (es) 2009-03-01
KR20050089870A (ko) 2005-09-08
US20040131204A1 (en) 2004-07-08
JP4425148B2 (ja) 2010-03-03
TWI335145B (en) 2010-12-21

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