MX350690B - Método y descodificador para un concepto paramétrico de codificación de objeto de audio espacial generalizado para casos de mezcla descendente/mezcla ascendente de multicanal. - Google Patents

Método y descodificador para un concepto paramétrico de codificación de objeto de audio espacial generalizado para casos de mezcla descendente/mezcla ascendente de multicanal.

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Publication number
MX350690B
MX350690B MX2015001396A MX2015001396A MX350690B MX 350690 B MX350690 B MX 350690B MX 2015001396 A MX2015001396 A MX 2015001396A MX 2015001396 A MX2015001396 A MX 2015001396A MX 350690 B MX350690 B MX 350690B
Authority
MX
Mexico
Prior art keywords
decoder
audio
downmix
signal
channels
Prior art date
Application number
MX2015001396A
Other languages
English (en)
Other versions
MX2015001396A (es
Inventor
Juergen Herre
Oliver Hellmuth
Thorsten Kastner
Leon Terentiv
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.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2015001396A publication Critical patent/MX2015001396A/es
Publication of MX350690B publication Critical patent/MX350690B/es

Links

Classifications

    • 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
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/06—Elementary speech units used in speech synthesisers; Concatenation rules
    • G10L13/07—Concatenation rules
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (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)

Abstract

Se describe un generador para generar una señal de salida de audio que comprende uno o más canales de salida de audio de una señal de mezcla descendente que comprende uno o más canales de mezcla descendente. La señal de mezcla descendente codifica una o más señales de objeto de audio. El descodificador comprende un determinador de umbral (110) para determinar un valor de umbral dependiendo de la energía de señal y/o energía de ruido de por lo menos una de las señales de objeto de audio y/o dependiendo de la energía de señal y/o energía de ruido de por lo menos uno de los canales de mezcla descendente. Además, el descodificador comprende una unidad de procesamiento (120) para generar el uno o más canales de salida de audio del uno o más canales de mezcla descendente, dependiendo del valor de umbral.
MX2015001396A 2012-08-03 2013-08-05 Método y descodificador para un concepto paramétrico de codificación de objeto de audio espacial generalizado para casos de mezcla descendente/mezcla ascendente de multicanal. MX350690B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261679404P 2012-08-03 2012-08-03
PCT/EP2013/066405 WO2014020182A2 (en) 2012-08-03 2013-08-05 Decoder and method for a generalized spatial-audio-object-coding parametric concept for multichannel downmix/upmix cases

Publications (2)

Publication Number Publication Date
MX2015001396A MX2015001396A (es) 2015-05-11
MX350690B true MX350690B (es) 2017-09-13

Family

ID=49150906

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015001396A MX350690B (es) 2012-08-03 2013-08-05 Método y descodificador para un concepto paramétrico de codificación de objeto de audio espacial generalizado para casos de mezcla descendente/mezcla ascendente de multicanal.

Country Status (18)

Country Link
US (1) US10096325B2 (es)
EP (1) EP2880654B1 (es)
JP (1) JP6133422B2 (es)
KR (1) KR101657916B1 (es)
CN (2) CN104885150B (es)
AU (2) AU2013298463A1 (es)
BR (1) BR112015002228B1 (es)
CA (1) CA2880028C (es)
ES (1) ES2649739T3 (es)
HK (1) HK1210863A1 (es)
MX (1) MX350690B (es)
MY (1) MY176410A (es)
PL (1) PL2880654T3 (es)
PT (1) PT2880654T (es)
RU (1) RU2628195C2 (es)
SG (1) SG11201500783SA (es)
WO (1) WO2014020182A2 (es)
ZA (1) ZA201501383B (es)

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Also Published As

Publication number Publication date
US10096325B2 (en) 2018-10-09
SG11201500783SA (en) 2015-02-27
WO2014020182A2 (en) 2014-02-06
CA2880028C (en) 2019-04-30
JP2015528926A (ja) 2015-10-01
AU2013298463A1 (en) 2015-02-19
ES2649739T3 (es) 2018-01-15
WO2014020182A3 (en) 2014-05-30
CA2880028A1 (en) 2014-02-06
AU2016234987A1 (en) 2016-10-20
CN110223701B (zh) 2024-04-09
RU2015107202A (ru) 2016-09-27
US20150142427A1 (en) 2015-05-21
ZA201501383B (en) 2016-08-31
RU2628195C2 (ru) 2017-08-15
JP6133422B2 (ja) 2017-05-24
HK1210863A1 (en) 2016-05-06
PL2880654T3 (pl) 2018-03-30
CN104885150B (zh) 2019-06-28
PT2880654T (pt) 2017-12-07
EP2880654B1 (en) 2017-09-13
CN110223701A (zh) 2019-09-10
EP2880654A2 (en) 2015-06-10
BR112015002228B1 (pt) 2021-12-14
CN104885150A (zh) 2015-09-02
MY176410A (en) 2020-08-06
KR20150032734A (ko) 2015-03-27
KR101657916B1 (ko) 2016-09-19
BR112015002228A2 (pt) 2019-10-15
AU2016234987B2 (en) 2018-07-05
MX2015001396A (es) 2015-05-11

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