PT3025515T - Descorrelacionador multicanal, descodificador de áudio multicanal, codificador de áudio multicanal, métodos e programa de computador que usa uma pré-mistura dos sinais de entrada do descorrelacionador - Google Patents

Descorrelacionador multicanal, descodificador de áudio multicanal, codificador de áudio multicanal, métodos e programa de computador que usa uma pré-mistura dos sinais de entrada do descorrelacionador

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Publication number
PT3025515T
PT3025515T PT14741278T PT14741278T PT3025515T PT 3025515 T PT3025515 T PT 3025515T PT 14741278 T PT14741278 T PT 14741278T PT 14741278 T PT14741278 T PT 14741278T PT 3025515 T PT3025515 T PT 3025515T
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PT
Portugal
Prior art keywords
decorrelator
channel
premix
methods
computer program
Prior art date
Application number
PT14741278T
Other languages
English (en)
Portuguese (pt)
Inventor
Disch Sascha
Herre Jürgen
Fuchs Harald
Hellmuth Oliver
Terentiv Leon
Murtaza Adrian
Paulus Jouni
Ridderbusch Falko
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.)
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of PT3025515T publication Critical patent/PT3025515T/pt

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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)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
PT14741278T 2013-07-22 2014-07-17 Descorrelacionador multicanal, descodificador de áudio multicanal, codificador de áudio multicanal, métodos e programa de computador que usa uma pré-mistura dos sinais de entrada do descorrelacionador PT3025515T (pt)

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
PT3025515T true PT3025515T (pt) 2019-05-30

Family

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PT14741278T PT3025515T (pt) 2013-07-22 2014-07-17 Descorrelacionador multicanal, descodificador de áudio multicanal, codificador de áudio multicanal, métodos e programa de computador que usa uma pré-mistura dos sinais de entrada do descorrelacionador

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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TW201532034A (zh) 2015-08-16
JP7000488B2 (ja) 2022-01-19
US10448185B2 (en) 2019-10-15
CN105580390B (zh) 2018-06-12
CN105580390A (zh) 2016-05-11
US11115770B2 (en) 2021-09-07
BR112016001245B1 (pt) 2022-06-21
ES2924174T3 (es) 2022-10-05
JP6434013B2 (ja) 2018-12-05
US11240619B2 (en) 2022-02-01
MY178904A (en) 2020-10-22
ES2725427T3 (es) 2019-09-24
US20160157039A1 (en) 2016-06-02
JP2016531482A (ja) 2016-10-06
EP3419315A1 (en) 2018-12-26
MX362548B (es) 2019-01-24
MX2018012892A (es) 2020-09-17
US20220167102A1 (en) 2022-05-26
AU2014295206B2 (en) 2017-11-02
ZA201601047B (en) 2017-11-29
RU2016105468A (ru) 2017-08-29
US20160353222A1 (en) 2016-12-01
AU2017248532B2 (en) 2019-09-19
AR097014A1 (es) 2016-02-10
SG11201600491SA (en) 2016-02-26
WO2015011014A1 (en) 2015-01-29
US11381925B2 (en) 2022-07-05
EP2830334A1 (en) 2015-01-28
EP2830333A1 (en) 2015-01-28
KR101893410B1 (ko) 2018-10-04
TWI587285B (zh) 2017-06-11
RU2666640C2 (ru) 2018-09-11
BR112016001245A2 (enExample) 2017-07-25
EP3025515A1 (en) 2016-06-01
AR097015A1 (es) 2016-02-10
CA2919077C (en) 2019-07-09
EP3025515B1 (en) 2019-02-13
JP6687683B2 (ja) 2020-04-28
MX2016000915A (es) 2016-05-31
MX2018012891A (es) 2020-11-06
US20160240199A1 (en) 2016-08-18
AU2014295206A1 (en) 2016-03-10
US11252523B2 (en) 2022-02-15
EP3419314B1 (en) 2022-04-27
US20190124459A1 (en) 2019-04-25
ES2925038T3 (es) 2022-10-13
KR20160042913A (ko) 2016-04-20
AU2017248532A1 (en) 2017-11-09
EP3419314A1 (en) 2018-12-26
CA2919077A1 (en) 2015-01-29
JP2018198434A (ja) 2018-12-13
EP3419315B1 (en) 2022-05-04
US20160316307A1 (en) 2016-10-27
JP2020120389A (ja) 2020-08-06
PL3025515T3 (pl) 2019-08-30

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