DK1070438T3 - Rumlig kodningsmetode og system med lav bithastighed - Google Patents

Rumlig kodningsmetode og system med lav bithastighed

Info

Publication number
DK1070438T3
DK1070438T3 DK99915275T DK99915275T DK1070438T3 DK 1070438 T3 DK1070438 T3 DK 1070438T3 DK 99915275 T DK99915275 T DK 99915275T DK 99915275 T DK99915275 T DK 99915275T DK 1070438 T3 DK1070438 T3 DK 1070438T3
Authority
DK
Denmark
Prior art keywords
low bit
audio
soundfield
subbands
instant
Prior art date
Application number
DK99915275T
Other languages
Danish (da)
English (en)
Inventor
Ray Milton Dolby
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 DK1070438T3 publication Critical patent/DK1070438T3/da

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)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)
  • Error Detection And Correction (AREA)
DK99915275T 1998-04-07 1999-04-05 Rumlig kodningsmetode og system med lav bithastighed DK1070438T3 (da)

Applications Claiming Priority (2)

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
PCT/US1999/007456 WO1999052326A1 (en) 1998-04-07 1999-04-05 Low bit-rate spatial coding method and system

Publications (1)

Publication Number Publication Date
DK1070438T3 true DK1070438T3 (da) 2007-02-12

Family

ID=22004835

Family Applications (1)

Application Number Title Priority Date Filing Date
DK99915275T DK1070438T3 (da) 1998-04-07 1999-04-05 Rumlig kodningsmetode og system med lav bithastighed

Country Status (13)

Country Link
US (1) US6016473A (enExample)
EP (2) EP1070438B1 (enExample)
JP (1) JP2002511683A (enExample)
KR (1) KR100828952B1 (enExample)
CN (1) CN1142705C (enExample)
AT (1) ATE343311T1 (enExample)
AU (1) AU749062B2 (enExample)
CA (1) CA2327281C (enExample)
DE (1) DE69933659T2 (enExample)
DK (1) DK1070438T3 (enExample)
ES (1) ES2272062T3 (enExample)
TW (1) TW439051B (enExample)
WO (1) WO1999052326A1 (enExample)

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Also Published As

Publication number Publication date
CN1295778A (zh) 2001-05-16
CA2327281A1 (en) 1999-10-14
AU749062B2 (en) 2002-06-20
DE69933659D1 (de) 2006-11-30
KR100828952B1 (ko) 2008-05-13
CN1142705C (zh) 2004-03-17
ATE343311T1 (de) 2006-11-15
JP2002511683A (ja) 2002-04-16
EP1677576A2 (en) 2006-07-05
CA2327281C (en) 2008-02-05
EP1070438A1 (en) 2001-01-24
ES2272062T3 (es) 2007-04-16
KR20010042497A (ko) 2001-05-25
WO1999052326A1 (en) 1999-10-14
TW439051B (en) 2001-06-07
DE69933659T2 (de) 2007-08-23
US6016473A (en) 2000-01-18
EP1070438B1 (en) 2006-10-18
HK1036728A1 (en) 2002-01-11
EP1677576A3 (en) 2007-06-27
AU3382999A (en) 1999-10-25

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