DK1668959T3 - Kompatibel multikanalkodning/dekodning - Google Patents

Kompatibel multikanalkodning/dekodning

Info

Publication number
DK1668959T3
DK1668959T3 DK04787072T DK04787072T DK1668959T3 DK 1668959 T3 DK1668959 T3 DK 1668959T3 DK 04787072 T DK04787072 T DK 04787072T DK 04787072 T DK04787072 T DK 04787072T DK 1668959 T3 DK1668959 T3 DK 1668959T3
Authority
DK
Denmark
Prior art keywords
channel
channels
downmix
side information
original
Prior art date
Application number
DK04787072T
Other languages
Danish (da)
English (en)
Inventor
Juergen Herre
Johannes Hilpert
Stefan Geyersberger
Andreas Hoelzer
Claus Spenger
Original Assignee
Fraunhofer Ges Forschung
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34394093&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1668959(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of DK1668959T3 publication Critical patent/DK1668959T3/da

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Algebra (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Stereophonic System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Executing Machine-Instructions (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
DK04787072T 2003-10-02 2004-09-30 Kompatibel multikanalkodning/dekodning DK1668959T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/679,085 US7447317B2 (en) 2003-10-02 2003-10-02 Compatible multi-channel coding/decoding by weighting the downmix channel
PCT/EP2004/010948 WO2005036925A2 (en) 2003-10-02 2004-09-30 Compatible multi-channel coding/decoding

Publications (1)

Publication Number Publication Date
DK1668959T3 true DK1668959T3 (da) 2007-04-10

Family

ID=34394093

Family Applications (1)

Application Number Title Priority Date Filing Date
DK04787072T DK1668959T3 (da) 2003-10-02 2004-09-30 Kompatibel multikanalkodning/dekodning

Country Status (17)

Country Link
US (11) US7447317B2 (ja)
EP (1) EP1668959B1 (ja)
JP (1) JP4547380B2 (ja)
KR (1) KR100737302B1 (ja)
CN (1) CN1864436B (ja)
AT (1) ATE350879T1 (ja)
BR (5) BR122018069728B1 (ja)
CA (1) CA2540851C (ja)
DE (1) DE602004004168T2 (ja)
DK (1) DK1668959T3 (ja)
ES (1) ES2278348T3 (ja)
IL (1) IL174286A (ja)
MX (1) MXPA06003627A (ja)
NO (8) NO347074B1 (ja)
PT (1) PT1668959E (ja)
RU (1) RU2327304C2 (ja)
WO (1) WO2005036925A2 (ja)

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* Cited by examiner, † Cited by third party
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