DE602004004168D1 - Kompatible mehrkanal-codierung/-decodierung - Google Patents

Kompatible mehrkanal-codierung/-decodierung

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Publication number
DE602004004168D1
DE602004004168D1 DE602004004168T DE602004004168T DE602004004168D1 DE 602004004168 D1 DE602004004168 D1 DE 602004004168D1 DE 602004004168 T DE602004004168 T DE 602004004168T DE 602004004168 T DE602004004168 T DE 602004004168T DE 602004004168 D1 DE602004004168 D1 DE 602004004168D1
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DE
Germany
Prior art keywords
channel
channels
downmix
side information
original
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.)
Active
Application number
DE602004004168T
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English (en)
Other versions
DE602004004168T2 (de
Inventor
Juergen Herre
Johannes Hilpert
Stefan Geyersberger
Andreas Hoelzer
Claus Spenger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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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=DE602004004168(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of DE602004004168D1 publication Critical patent/DE602004004168D1/de
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Publication of DE602004004168T2 publication Critical patent/DE602004004168T2/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
    • 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 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
    • G10L19/008—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 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
    • 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
DE602004004168T 2003-10-02 2004-09-30 Kompatible mehrkanal-codierung/-decodierung Active DE602004004168T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US679085 1996-07-12
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 (2)

Publication Number Publication Date
DE602004004168D1 true DE602004004168D1 (de) 2007-02-15
DE602004004168T2 DE602004004168T2 (de) 2007-10-11

Family

ID=34394093

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004004168T Active DE602004004168T2 (de) 2003-10-02 2004-09-30 Kompatible mehrkanal-codierung/-decodierung

Country Status (18)

Country Link
US (11) US7447317B2 (de)
EP (1) EP1668959B1 (de)
JP (1) JP4547380B2 (de)
KR (1) KR100737302B1 (de)
CN (1) CN1864436B (de)
AT (1) ATE350879T1 (de)
BR (5) BR122018069731B1 (de)
CA (1) CA2540851C (de)
DE (1) DE602004004168T2 (de)
DK (1) DK1668959T3 (de)
ES (1) ES2278348T3 (de)
HK (1) HK1092001A1 (de)
IL (1) IL174286A (de)
MX (1) MXPA06003627A (de)
NO (8) NO347074B1 (de)
PT (1) PT1668959E (de)
RU (1) RU2327304C2 (de)
WO (1) WO2005036925A2 (de)

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