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MX2016000858A - Decodificador de audio, codificador de audio, metodo para proporcionar al menos cuatro señales de canales de audio sobre la base de una representacion codificada, metodo para proporcionar una representacion codificada sobre la base de al menos cuatro señales de canales de audio y programa de computadora usando extension de ancho de banda. - Google Patents

Decodificador de audio, codificador de audio, metodo para proporcionar al menos cuatro señales de canales de audio sobre la base de una representacion codificada, metodo para proporcionar una representacion codificada sobre la base de al menos cuatro señales de canales de audio y programa de computadora usando extension de ancho de banda.

Info

Publication number
MX2016000858A
MX2016000858A MX2016000858A MX2016000858A MX2016000858A MX 2016000858 A MX2016000858 A MX 2016000858A MX 2016000858 A MX2016000858 A MX 2016000858A MX 2016000858 A MX2016000858 A MX 2016000858A MX 2016000858 A MX2016000858 A MX 2016000858A
Authority
MX
Mexico
Prior art keywords
audio
signal
channel
basis
bandwidth
Prior art date
Application number
MX2016000858A
Other languages
English (en)
Other versions
MX357826B (es
Inventor
Johannes Hilpert
Christian Ertel
Andreas Hoelzer
Christian Helmrich
Achim Kuntz
Sascha Dick
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 MX2016000858A publication Critical patent/MX2016000858A/es
Publication of MX357826B publication Critical patent/MX357826B/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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • 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
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • 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 
    • 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)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un decodificador de audio para proporcionar al menos cuatro señales del canal de ancho de banda extendido sobre la base de una representación codificada se configura para proporcionar una primera señal de mezcla descendente y una segunda señal de mezcla descendente sobre la base de una representación codificada conjuntamente de la primera señal de mezcla descendente y la segunda señal de mezcla descendente usando una decodificación multicanal. El decodificador de audio se configura para proporcionar al menos una primera señal del canal de audio y una segunda señal del canal de audio sobre la base de la primera señal de mezcla descendente usando una decodificación multicanal. El decodificador de audio se configura para proporcionar al menos una tercera señal de canal de audio y una cuarta señal de canal de audio sobre la base de la segunda señal de mezcla descendente usando una decodificación multicanal. El decodificador de audio se configura para llevar a cabo una extensión de ancho de banda multicanal sobre la base de la primera señal del canal de audio y la tercera señal del canal de audio, para obtener una primera señal del canal de ancho de banda extendido y una tercera señal del canal de ancho de banda extendido El decodificador de audio se configura para llevar a cabo una extensión de ancho de banda multicanal sobre la base de la segunda señal del canal de audio y la cuarta señal del canal de audio, para obtener una segunda señal del canal de ancho de banda extendido y una cuarta señal del canal de ancho de banda extendido. Un codificador de audio usa un concepto relacionado.
MX2016000858A 2013-07-22 2014-07-14 Decodificador de audio, codificador de audio, metodo para proporcionar al menos cuatro señales de canales de audio sobre la base de una representacion codificada, metodo para proporcionar una representacion codificada sobre la base de al menos cuatro señales de canales de audio y programa de computadora usando extension de ancho de banda. MX357826B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13177376 2013-07-22
EP13189306.7A EP2830052A1 (en) 2013-07-22 2013-10-18 Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
PCT/EP2014/065021 WO2015010934A1 (en) 2013-07-22 2014-07-14 Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension

Publications (2)

Publication Number Publication Date
MX2016000858A true MX2016000858A (es) 2016-05-05
MX357826B MX357826B (es) 2018-07-25

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
MX2016000939A MX357667B (es) 2013-07-22 2014-07-11 Codificador de audio, decodificador de audio, metodos y programa de computacion usando señales residuales codificadas conjuntamente.
MX2016000858A MX357826B (es) 2013-07-22 2014-07-14 Decodificador de audio, codificador de audio, metodo para proporcionar al menos cuatro señales de canales de audio sobre la base de una representacion codificada, metodo para proporcionar una representacion codificada sobre la base de al menos cuatro señales de canales de audio y programa de computadora usando extension de ancho de banda.

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MX2016000939A MX357667B (es) 2013-07-22 2014-07-11 Codificador de audio, decodificador de audio, metodos y programa de computacion usando señales residuales codificadas conjuntamente.

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US (9) US9953656B2 (es)
EP (4) EP2830051A3 (es)
JP (2) JP6346278B2 (es)
KR (2) KR101823278B1 (es)
CN (5) CN111105805B (es)
AR (2) AR097011A1 (es)
AU (2) AU2014295360B2 (es)
BR (2) BR112016001141B1 (es)
CA (2) CA2917770C (es)
ES (2) ES2650544T3 (es)
MX (2) MX357667B (es)
MY (1) MY181944A (es)
PL (2) PL3022735T3 (es)
PT (2) PT3022735T (es)
RU (2) RU2677580C2 (es)
SG (1) SG11201600468SA (es)
TW (2) TWI544479B (es)
WO (2) WO2015010926A1 (es)
ZA (2) ZA201601080B (es)

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