AR097014A1 - Decorrelacionador multicanal, decodificador 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, decodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador

Info

Publication number
AR097014A1
AR097014A1 ARP140102718A ARP140102718A AR097014A1 AR 097014 A1 AR097014 A1 AR 097014A1 AR P140102718 A ARP140102718 A AR P140102718A AR P140102718 A ARP140102718 A AR P140102718A AR 097014 A1 AR097014 A1 AR 097014A1
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AR
Argentina
Prior art keywords
decoder
multichannel
input signals
multichannel audio
mix
Prior art date
Application number
ARP140102718A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
Friedrich-Alexander-Universitaet Erlangen-Nuernberg
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.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung, Friedrich-Alexander-Universitaet Erlangen-Nuernberg filed Critical Fraunhofer Ges Forschung
Publication of AR097014A1 publication Critical patent/AR097014A1/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)
  • 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)

Abstract

Un decorrelacionador multicanal para proporcionar una pluralidad de señales decorrelacionadas en base a 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 en base al segundo conjunto de señales de entrada del decorrelacionador K. El decorrelacionador multicanal está configurado además para mezclar hacia arriba 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 decodificador de audio multicanal. Un codificador de audio multicanal proporcionar información de control de complejidad para el decorrelacionador multicanal.
ARP140102718A 2013-07-22 2014-07-22 Decorrelacionador multicanal, decodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador AR097014A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13177374 2013-07-22

Publications (1)

Publication Number Publication Date
AR097014A1 true AR097014A1 (es) 2016-02-10

Family

ID=48832794

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP140102719A AR097015A1 (es) 2013-07-22 2014-07-22 Decodificador de audio multicanal, codificador de audio multicanal, métodos, programa de computadora y representación de audio codificada usando una decorrelación de señales de audio renderizadas
ARP140102718A AR097014A1 (es) 2013-07-22 2014-07-22 Decorrelacionador multicanal, decodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando una premezcla de señales de entrada del decorrelacionador

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ARP140102719A AR097015A1 (es) 2013-07-22 2014-07-22 Decodificador de audio multicanal, codificador de audio multicanal, métodos, programa de computadora y representación de audio codificada usando una decorrelación de señales de audio renderizadas

Country Status (19)

Country Link
US (6) US11115770B2 (es)
EP (5) EP2830334A1 (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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US11381925B2 (en) 2022-07-05
MX2018012891A (es) 2020-11-06
KR101893410B1 (ko) 2018-10-04
EP3419314A1 (en) 2018-12-26
JP2018198434A (ja) 2018-12-13
US20220167102A1 (en) 2022-05-26
US20160157039A1 (en) 2016-06-02
EP2830333A1 (en) 2015-01-28
BR112016001245A2 (es) 2017-07-25
US20160353222A1 (en) 2016-12-01
JP7000488B2 (ja) 2022-01-19
CN105580390A (zh) 2016-05-11
JP2016531482A (ja) 2016-10-06
US11240619B2 (en) 2022-02-01
JP6687683B2 (ja) 2020-04-28
SG11201600491SA (en) 2016-02-26
EP3419314B1 (en) 2022-04-27
US20160240199A1 (en) 2016-08-18
EP3419315B1 (en) 2022-05-04
AU2017248532A1 (en) 2017-11-09
US11252523B2 (en) 2022-02-15
BR112016001245B1 (pt) 2022-06-21
RU2666640C2 (ru) 2018-09-11
US11115770B2 (en) 2021-09-07
EP2830334A1 (en) 2015-01-28
JP2020120389A (ja) 2020-08-06
MY178904A (en) 2020-10-22
JP6434013B2 (ja) 2018-12-05
ZA201601047B (en) 2017-11-29
MX2018012892A (es) 2020-09-17
US10448185B2 (en) 2019-10-15
AR097015A1 (es) 2016-02-10
EP3025515A1 (en) 2016-06-01
MX2016000915A (es) 2016-05-31
EP3025515B1 (en) 2019-02-13
WO2015011014A1 (en) 2015-01-29
TWI587285B (zh) 2017-06-11
AU2014295206B2 (en) 2017-11-02
AU2017248532B2 (en) 2019-09-19
CN105580390B (zh) 2018-06-12
ES2924174T3 (es) 2022-10-05
US20190124459A1 (en) 2019-04-25
ES2725427T3 (es) 2019-09-24
CA2919077C (en) 2019-07-09
KR20160042913A (ko) 2016-04-20
RU2016105468A (ru) 2017-08-29
US20160316307A1 (en) 2016-10-27
ES2925038T3 (es) 2022-10-13
CA2919077A1 (en) 2015-01-29
MX362548B (es) 2019-01-24
PT3025515T (pt) 2019-05-30
TW201532034A (zh) 2015-08-16
EP3419315A1 (en) 2018-12-26
AU2014295206A1 (en) 2016-03-10
PL3025515T3 (pl) 2019-08-30

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