JP2002511683A - 低ビットレート空間符号化方法及び装置 - Google Patents

低ビットレート空間符号化方法及び装置

Info

Publication number
JP2002511683A
JP2002511683A JP2000542954A JP2000542954A JP2002511683A JP 2002511683 A JP2002511683 A JP 2002511683A JP 2000542954 A JP2000542954 A JP 2000542954A JP 2000542954 A JP2000542954 A JP 2000542954A JP 2002511683 A JP2002511683 A JP 2002511683A
Authority
JP
Japan
Prior art keywords
signal
sub
band
generating
sound field
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2000542954A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002511683A5 (https=
Inventor
ドルビー、レイ・ミルトン
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JP2002511683A publication Critical patent/JP2002511683A/ja
Publication of JP2002511683A5 publication Critical patent/JP2002511683A5/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Error Detection And Correction (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
JP2000542954A 1998-04-07 1999-04-05 低ビットレート空間符号化方法及び装置 Pending JP2002511683A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/056,503 US6016473A (en) 1998-04-07 1998-04-07 Low bit-rate spatial coding method and system
US09/056,503 1998-04-07
PCT/US1999/007456 WO1999052326A1 (en) 1998-04-07 1999-04-05 Low bit-rate spatial coding method and system

Publications (2)

Publication Number Publication Date
JP2002511683A true JP2002511683A (ja) 2002-04-16
JP2002511683A5 JP2002511683A5 (https=) 2006-06-22

Family

ID=22004835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000542954A Pending JP2002511683A (ja) 1998-04-07 1999-04-05 低ビットレート空間符号化方法及び装置

Country Status (13)

Country Link
US (1) US6016473A (https=)
EP (2) EP1677576A3 (https=)
JP (1) JP2002511683A (https=)
KR (1) KR100828952B1 (https=)
CN (1) CN1142705C (https=)
AT (1) ATE343311T1 (https=)
AU (1) AU749062B2 (https=)
CA (1) CA2327281C (https=)
DE (1) DE69933659T2 (https=)
DK (1) DK1070438T3 (https=)
ES (1) ES2272062T3 (https=)
TW (1) TW439051B (https=)
WO (1) WO1999052326A1 (https=)

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JP2007533221A (ja) * 2004-04-16 2007-11-15 コーディング テクノロジーズ アクチボラゲット 低ビットレート用パラメトリック表現の生成方法
JP2008522244A (ja) * 2004-11-30 2008-06-26 アギア システムズ インコーポレーテッド オブジェクト・ベースのサイド情報を用いる空間オーディオのパラメトリック・コーディング
JP2009502086A (ja) * 2005-07-19 2009-01-22 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュート 仮想音源位置情報に基づいたチャネル間レベル差量子化及び逆量子化方法
JP2010507115A (ja) * 2006-10-16 2010-03-04 ドルビー スウェーデン アクチボラゲット 多チャネルダウンミックスされたオブジェクト符号化における強化された符号化及びパラメータ表現
US8687829B2 (en) 2006-10-16 2014-04-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for multi-channel parameter transformation

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JP2007533221A (ja) * 2004-04-16 2007-11-15 コーディング テクノロジーズ アクチボラゲット 低ビットレート用パラメトリック表現の生成方法
JP2010154548A (ja) * 2004-04-16 2010-07-08 Dolby Internatl Ab 低ビットレート用パラメトリック表現の生成方法
JP2008522244A (ja) * 2004-11-30 2008-06-26 アギア システムズ インコーポレーテッド オブジェクト・ベースのサイド情報を用いる空間オーディオのパラメトリック・コーディング
JP2009502086A (ja) * 2005-07-19 2009-01-22 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュート 仮想音源位置情報に基づいたチャネル間レベル差量子化及び逆量子化方法
JP2010507115A (ja) * 2006-10-16 2010-03-04 ドルビー スウェーデン アクチボラゲット 多チャネルダウンミックスされたオブジェクト符号化における強化された符号化及びパラメータ表現
US8687829B2 (en) 2006-10-16 2014-04-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for multi-channel parameter transformation
US9565509B2 (en) 2006-10-16 2017-02-07 Dolby International Ab Enhanced coding and parameter representation of multichannel downmixed object coding

Also Published As

Publication number Publication date
ES2272062T3 (es) 2007-04-16
HK1036728A1 (en) 2002-01-11
EP1070438A1 (en) 2001-01-24
KR100828952B1 (ko) 2008-05-13
WO1999052326A1 (en) 1999-10-14
CA2327281A1 (en) 1999-10-14
DE69933659D1 (de) 2006-11-30
AU3382999A (en) 1999-10-25
DE69933659T2 (de) 2007-08-23
EP1677576A3 (en) 2007-06-27
CN1142705C (zh) 2004-03-17
KR20010042497A (ko) 2001-05-25
CN1295778A (zh) 2001-05-16
EP1677576A2 (en) 2006-07-05
TW439051B (en) 2001-06-07
EP1070438B1 (en) 2006-10-18
CA2327281C (en) 2008-02-05
ATE343311T1 (de) 2006-11-15
US6016473A (en) 2000-01-18
AU749062B2 (en) 2002-06-20
DK1070438T3 (da) 2007-02-12

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