HK1073916A1 - Low bit-rate audio coding - Google Patents

Low bit-rate audio coding

Info

Publication number
HK1073916A1
HK1073916A1 HK05106539A HK05106539A HK1073916A1 HK 1073916 A1 HK1073916 A1 HK 1073916A1 HK 05106539 A HK05106539 A HK 05106539A HK 05106539 A HK05106539 A HK 05106539A HK 1073916 A1 HK1073916 A1 HK 1073916A1
Authority
HK
Hong Kong
Prior art keywords
low bit
quantized
audio coding
rate audio
expanding
Prior art date
Application number
HK05106539A
Other languages
English (en)
Inventor
Mark Stuart Vinton
Michael Mead Truman
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 HK1073916A1 publication Critical patent/HK1073916A1/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
HK05106539A 2002-07-16 2005-08-01 Low bit-rate audio coding HK1073916A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/198,638 US7043423B2 (en) 2002-07-16 2002-07-16 Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
PCT/US2003/021506 WO2004008436A1 (en) 2002-07-16 2003-07-08 Low bit-rate audio coding

Publications (1)

Publication Number Publication Date
HK1073916A1 true HK1073916A1 (en) 2006-01-20

Family

ID=30115160

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05106539A HK1073916A1 (en) 2002-07-16 2005-08-01 Low bit-rate audio coding

Country Status (16)

Country Link
US (1) US7043423B2 (ko)
EP (1) EP1537562B1 (ko)
JP (1) JP4786903B2 (ko)
KR (1) KR101019678B1 (ko)
CN (1) CN100367348C (ko)
AT (1) ATE360250T1 (ko)
AU (1) AU2003253854B2 (ko)
CA (1) CA2492647C (ko)
DE (1) DE60313332T2 (ko)
HK (1) HK1073916A1 (ko)
IL (1) IL165869A (ko)
MX (1) MXPA05000653A (ko)
MY (1) MY137149A (ko)
PL (1) PL207862B1 (ko)
TW (1) TWI315944B (ko)
WO (1) WO2004008436A1 (ko)

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US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
EP3236587B1 (en) * 2006-07-04 2018-11-21 Dolby International AB Filter system comprising a filter converter and a filter compressor and method for operating the filter system
US7761290B2 (en) * 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8249883B2 (en) * 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
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EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
MY154452A (en) 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
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WO2010028297A1 (en) * 2008-09-06 2010-03-11 GH Innovation, Inc. Selective bandwidth extension
WO2010028301A1 (en) * 2008-09-06 2010-03-11 GH Innovation, Inc. Spectrum harmonic/noise sharpness control
WO2010031003A1 (en) 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Adding second enhancement layer to celp based core layer
US8577673B2 (en) * 2008-09-15 2013-11-05 Huawei Technologies Co., Ltd. CELP post-processing for music signals
US20100106269A1 (en) * 2008-09-26 2010-04-29 Qualcomm Incorporated Method and apparatus for signal processing using transform-domain log-companding
EP2345030A2 (en) * 2008-10-08 2011-07-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-resolution switched audio encoding/decoding scheme
EP2315358A1 (en) * 2009-10-09 2011-04-27 Thomson Licensing Method and device for arithmetic encoding or arithmetic decoding
ES2453098T3 (es) * 2009-10-20 2014-04-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Códec multimodo de audio
US8280729B2 (en) * 2010-01-22 2012-10-02 Research In Motion Limited System and method for encoding and decoding pulse indices
US8989884B2 (en) * 2011-01-11 2015-03-24 Apple Inc. Automatic audio configuration based on an audio output device
KR20140117931A (ko) 2013-03-27 2014-10-08 삼성전자주식회사 오디오 디코딩 장치 및 방법
WO2014159898A1 (en) * 2013-03-29 2014-10-02 Dolby Laboratories Licensing Corporation Methods and apparatuses for generating and using low-resolution preview tracks with high-quality encoded object and multichannel audio signals
JP5969727B2 (ja) * 2013-04-29 2016-08-17 ドルビー ラボラトリーズ ライセンシング コーポレイション 動的閾値を用いた周波数帯域圧縮
WO2016041204A1 (en) * 2014-09-19 2016-03-24 Telefonaktiebolaget L M Ericsson (Publ) Methods for compressing and decompressing iq data, and associated devices
TWI758146B (zh) 2015-03-13 2022-03-11 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
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Also Published As

Publication number Publication date
US7043423B2 (en) 2006-05-09
ATE360250T1 (de) 2007-05-15
MXPA05000653A (es) 2005-04-25
CA2492647C (en) 2011-08-30
TWI315944B (en) 2009-10-11
US20040015349A1 (en) 2004-01-22
AU2003253854B2 (en) 2009-02-19
IL165869A (en) 2010-06-30
WO2004008436A1 (en) 2004-01-22
EP1537562A1 (en) 2005-06-08
DE60313332T2 (de) 2008-01-03
IL165869A0 (en) 2006-01-15
JP4786903B2 (ja) 2011-10-05
PL207862B1 (pl) 2011-02-28
CN100367348C (zh) 2008-02-06
CA2492647A1 (en) 2004-01-22
AU2003253854A1 (en) 2004-02-02
KR20050021467A (ko) 2005-03-07
CN1669072A (zh) 2005-09-14
TW200406096A (en) 2004-04-16
DE60313332D1 (de) 2007-05-31
KR101019678B1 (ko) 2011-03-07
JP2005533280A (ja) 2005-11-04
MY137149A (en) 2008-12-31
EP1537562B1 (en) 2007-04-18
PL373045A1 (en) 2005-08-08

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Legal Events

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PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170708