ES2924174T3 - Decorrelacionador multicanal, codificador de audio multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador - Google Patents

Decorrelacionador multicanal, codificador de audio multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador Download PDF

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Publication number
ES2924174T3
ES2924174T3 ES18178666T ES18178666T ES2924174T3 ES 2924174 T3 ES2924174 T3 ES 2924174T3 ES 18178666 T ES18178666 T ES 18178666T ES 18178666 T ES18178666 T ES 18178666T ES 2924174 T3 ES2924174 T3 ES 2924174T3
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Prior art keywords
signals
decorrelator
audio
multichannel
input
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ES18178666T
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English (en)
Spanish (es)
Inventor
Sascha Disch
Harald Fuchs
Oliver Hellmuth
Jürgen Herre
Adrian Murtaza
Jouni Paulus
Falko Ridderbusch
Leon Terentiv
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Classifications

    • 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
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • 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)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
ES18178666T 2013-07-22 2014-07-17 Decorrelacionador multicanal, codificador de audio multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador Active ES2924174T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13177374 2013-07-22
EP20130189339 EP2830333A1 (en) 2013-07-22 2013-10-18 Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals

Publications (1)

Publication Number Publication Date
ES2924174T3 true ES2924174T3 (es) 2022-10-05

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ES18178666T Active ES2924174T3 (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, codificador de audio multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador
ES18178664T Active ES2925038T3 (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador
ES14741278T Active ES2725427T3 (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, decodificador de audio multicanal, procedimientos y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador

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ES18178664T Active ES2925038T3 (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, procedimiento y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador
ES14741278T Active ES2725427T3 (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, decodificador de audio multicanal, procedimientos y programa informático que utilizan una premezcla de señales de entrada del decorrelacionador

Country Status (19)

Country Link
US (6) US11115770B2 (enExample)
EP (5) EP2830333A1 (enExample)
JP (3) JP6434013B2 (enExample)
KR (1) KR101893410B1 (enExample)
CN (1) CN105580390B (enExample)
AR (2) AR097014A1 (enExample)
AU (2) AU2014295206B2 (enExample)
BR (1) BR112016001245B1 (enExample)
CA (1) CA2919077C (enExample)
ES (3) ES2924174T3 (enExample)
MX (3) MX362548B (enExample)
MY (1) MY178904A (enExample)
PL (1) PL3025515T3 (enExample)
PT (1) PT3025515T (enExample)
RU (1) RU2666640C2 (enExample)
SG (1) SG11201600491SA (enExample)
TW (1) TWI587285B (enExample)
WO (1) WO2015011014A1 (enExample)
ZA (1) ZA201601047B (enExample)

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BR112016001245A2 (enExample) 2017-07-25
EP3419315A1 (en) 2018-12-26
SG11201600491SA (en) 2016-02-26
US20160240199A1 (en) 2016-08-18
JP7000488B2 (ja) 2022-01-19
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