BR112016001245B1 - Descorrelacionador multicanal, decodificador de áudio multicanal, codificador de áudio multicanal e métodos - Google Patents

Descorrelacionador multicanal, decodificador de áudio multicanal, codificador de áudio multicanal e métodos Download PDF

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Publication number
BR112016001245B1
BR112016001245B1 BR112016001245-3A BR112016001245A BR112016001245B1 BR 112016001245 B1 BR112016001245 B1 BR 112016001245B1 BR 112016001245 A BR112016001245 A BR 112016001245A BR 112016001245 B1 BR112016001245 B1 BR 112016001245B1
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Brazil
Prior art keywords
decorrelator
signals
multichannel
input signals
audio
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BR112016001245-3A
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English (en)
Portuguese (pt)
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BR112016001245A2 (enExample
Inventor
Sascha Disch
Harald Fuchs
Oliver Hellmuth
Jürgen Herre
Adrian Murtaza
Jouni PAULUS
Falko Ridderbusch
Leon Terentiv
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Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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Publication of BR112016001245A2 publication Critical patent/BR112016001245A2/pt
Publication of BR112016001245B1 publication Critical patent/BR112016001245B1/pt

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    • 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

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  • 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)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
BR112016001245-3A 2013-07-22 2014-07-17 Descorrelacionador multicanal, decodificador de áudio multicanal, codificador de áudio multicanal e métodos BR112016001245B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP13177374 2013-07-22
EP13177374.9 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
EP13189339.8 2013-10-18
PCT/EP2014/065395 WO2015011014A1 (en) 2013-07-22 2014-07-17 Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals

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BR112016001245A2 BR112016001245A2 (enExample) 2017-07-25
BR112016001245B1 true BR112016001245B1 (pt) 2022-06-21

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EP (5) EP2830333A1 (enExample)
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KR (1) KR101893410B1 (enExample)
CN (1) CN105580390B (enExample)
AR (2) AR097015A1 (enExample)
AU (2) AU2014295206B2 (enExample)
BR (1) BR112016001245B1 (enExample)
CA (1) CA2919077C (enExample)
ES (3) ES2725427T3 (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)
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TW201532034A (zh) 2015-08-16
JP7000488B2 (ja) 2022-01-19
US20160157039A1 (en) 2016-06-02
AR097015A1 (es) 2016-02-10
MX362548B (es) 2019-01-24
EP3025515B1 (en) 2019-02-13
TWI587285B (zh) 2017-06-11
US20160316307A1 (en) 2016-10-27
CN105580390A (zh) 2016-05-11
MX2018012892A (es) 2020-09-17
US10448185B2 (en) 2019-10-15
MX2016000915A (es) 2016-05-31
WO2015011014A1 (en) 2015-01-29
MY178904A (en) 2020-10-22
SG11201600491SA (en) 2016-02-26
PL3025515T3 (pl) 2019-08-30
JP2020120389A (ja) 2020-08-06
AU2017248532B2 (en) 2019-09-19
AU2014295206B2 (en) 2017-11-02
KR20160042913A (ko) 2016-04-20
EP3419314B1 (en) 2022-04-27
CA2919077A1 (en) 2015-01-29
EP3419314A1 (en) 2018-12-26
RU2666640C2 (ru) 2018-09-11
ES2725427T3 (es) 2019-09-24
US11240619B2 (en) 2022-02-01
ES2925038T3 (es) 2022-10-13
CA2919077C (en) 2019-07-09
MX2018012891A (es) 2020-11-06
US11381925B2 (en) 2022-07-05
RU2016105468A (ru) 2017-08-29
EP3419315A1 (en) 2018-12-26
US20160353222A1 (en) 2016-12-01
AU2017248532A1 (en) 2017-11-09
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US11115770B2 (en) 2021-09-07
US11252523B2 (en) 2022-02-15
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US20220167102A1 (en) 2022-05-26
BR112016001245A2 (enExample) 2017-07-25
JP2018198434A (ja) 2018-12-13
ZA201601047B (en) 2017-11-29
PT3025515T (pt) 2019-05-30
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AU2014295206A1 (en) 2016-03-10
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KR101893410B1 (ko) 2018-10-04
EP2830334A1 (en) 2015-01-28
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