MX2018012892A - Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador. - Google Patents

Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.

Info

Publication number
MX2018012892A
MX2018012892A MX2018012892A MX2018012892A MX2018012892A MX 2018012892 A MX2018012892 A MX 2018012892A MX 2018012892 A MX2018012892 A MX 2018012892A MX 2018012892 A MX2018012892 A MX 2018012892A MX 2018012892 A MX2018012892 A MX 2018012892A
Authority
MX
Mexico
Prior art keywords
decorrelator
channel
channel audio
input signals
premix
Prior art date
Application number
MX2018012892A
Other languages
English (en)
Inventor
Jürgen Herre
Falko Ridderbusch
Leon Terentiv
Oliver Hellmuth
Harald Fuchs
Sascha Disch
Jouni Paulus
Adrian Murtaza
Original Assignee
Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2018012892A publication Critical patent/MX2018012892A/es

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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)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)

Abstract

Un decorrelacionador multicanal para proporcionar una pluralidad de señales decorrelacionadas con base en una pluralidad de señales de entrada del decorrelacionador está configurado para premezclar un primer conjunto de señales de entrada del decorrelacionador N en un segundo conjunto de señales de entrada del decorrelacionador K, en donde K<N. El decorrelacionador multicanal está configurado para proporcionar un primer conjunto de señales de salida del decorrelacionador K' con base en el segundo conjunto de señales de entrada del decorrelacionador K. El decorrelacionador multicanal está configurado además para mezclar ascendente el primer conjunto de señales de salida del decorrelacionador K' en un segundo conjunto de señales de salida del decorrelacionador N', en donde N'>K'. El decorrelacionador multicanal se puede usar en un descodificador de audio multicanal. Un codificador de audio multicanal proporciona información de control de complejidad para el decorrelacionador multicanal.
MX2018012892A 2013-07-22 2016-01-21 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador. MX2018012892A (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
MX2018012892A true MX2018012892A (es) 2020-09-17

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
MX2016000915A MX362548B (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, metodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.
MX2018012891A MX2018012891A (es) 2013-07-22 2016-01-21 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.
MX2018012892A MX2018012892A (es) 2013-07-22 2016-01-21 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.

Family Applications Before (2)

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MX2016000915A MX362548B (es) 2013-07-22 2014-07-17 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, metodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.
MX2018012891A MX2018012891A (es) 2013-07-22 2016-01-21 Decorrelacionador multicanal, descodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador.

Country Status (19)

Country Link
US (6) US11115770B2 (es)
EP (5) EP2830333A1 (es)
JP (3) JP6434013B2 (es)
KR (1) KR101893410B1 (es)
CN (1) CN105580390B (es)
AR (2) AR097015A1 (es)
AU (2) AU2014295206B2 (es)
BR (1) BR112016001245B1 (es)
CA (1) CA2919077C (es)
ES (3) ES2924174T3 (es)
MX (3) MX362548B (es)
MY (1) MY178904A (es)
PL (1) PL3025515T3 (es)
PT (1) PT3025515T (es)
RU (1) RU2666640C2 (es)
SG (1) SG11201600491SA (es)
TW (1) TWI587285B (es)
WO (1) WO2015011014A1 (es)
ZA (1) ZA201601047B (es)

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MX2016000915A (es) 2016-05-31
MY178904A (en) 2020-10-22
US11115770B2 (en) 2021-09-07
TW201532034A (zh) 2015-08-16
EP2830334A1 (en) 2015-01-28
JP6434013B2 (ja) 2018-12-05
US10448185B2 (en) 2019-10-15
US20160353222A1 (en) 2016-12-01
ES2924174T3 (es) 2022-10-05
EP3419315A1 (en) 2018-12-26
US11381925B2 (en) 2022-07-05
US11252523B2 (en) 2022-02-15
US20190124459A1 (en) 2019-04-25
KR101893410B1 (ko) 2018-10-04
US20160316307A1 (en) 2016-10-27
SG11201600491SA (en) 2016-02-26
CA2919077C (en) 2019-07-09
KR20160042913A (ko) 2016-04-20
ES2725427T3 (es) 2019-09-24
AU2017248532B2 (en) 2019-09-19
EP3419314A1 (en) 2018-12-26
US11240619B2 (en) 2022-02-01
US20220167102A1 (en) 2022-05-26
AU2017248532A1 (en) 2017-11-09
TWI587285B (zh) 2017-06-11
CN105580390A (zh) 2016-05-11
US20160240199A1 (en) 2016-08-18
AR097015A1 (es) 2016-02-10
WO2015011014A1 (en) 2015-01-29
PL3025515T3 (pl) 2019-08-30
EP3025515A1 (en) 2016-06-01
JP2020120389A (ja) 2020-08-06
AU2014295206B2 (en) 2017-11-02
JP2018198434A (ja) 2018-12-13
CN105580390B (zh) 2018-06-12
PT3025515T (pt) 2019-05-30
CA2919077A1 (en) 2015-01-29
RU2666640C2 (ru) 2018-09-11
MX2018012891A (es) 2020-11-06
JP6687683B2 (ja) 2020-04-28
RU2016105468A (ru) 2017-08-29
EP3025515B1 (en) 2019-02-13
AR097014A1 (es) 2016-02-10
AU2014295206A1 (en) 2016-03-10
EP3419315B1 (en) 2022-05-04
ZA201601047B (en) 2017-11-29
EP3419314B1 (en) 2022-04-27
JP2016531482A (ja) 2016-10-06
MX362548B (es) 2019-01-24
JP7000488B2 (ja) 2022-01-19
BR112016001245B1 (pt) 2022-06-21
BR112016001245A2 (es) 2017-07-25
ES2925038T3 (es) 2022-10-13
US20160157039A1 (en) 2016-06-02
EP2830333A1 (en) 2015-01-28

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