MX2016000907A - Aparato y metodo para la codificacion eficiente de metadatos de objetos. - Google Patents

Aparato y metodo para la codificacion eficiente de metadatos de objetos.

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Publication number
MX2016000907A
MX2016000907A MX2016000907A MX2016000907A MX2016000907A MX 2016000907 A MX2016000907 A MX 2016000907A MX 2016000907 A MX2016000907 A MX 2016000907A MX 2016000907 A MX2016000907 A MX 2016000907A MX 2016000907 A MX2016000907 A MX 2016000907A
Authority
MX
Mexico
Prior art keywords
metadata
signals
reconstructed
samples
audio
Prior art date
Application number
MX2016000907A
Other languages
English (en)
Other versions
MX357576B (es
Inventor
Christian Borss
Christian Ertel
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
Priority claimed from EP20130177378 external-priority patent/EP2830045A1/en
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2016000907A publication Critical patent/MX2016000907A/es
Publication of MX357576B publication Critical patent/MX357576B/es

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Classifications

    • 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 
    • H04S5/005—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 five- or more-channel type, e.g. virtual surround
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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
    • 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 
    • 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 
    • 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)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Se proporciona un aparato (100) para generar uno o más canales de audio. El aparato (100) comprende un descodificador (110) de metadatos para recibir una o más señales de metadatos comprimidas. Cada una de una o más señales de metadatos comprimidas comprende una pluralidad de primeras muestras de metadatos. Las primeras muestras de metadatos de cada una de una o más señales de metadatos comprimidas indican información asociada con una señal de objetos de audio de una o más señales de objetos de audio. El descodificador (110) de metadatos se configura para generar una o más señales de metadatos reconstruidas, de modo que cada una de una o más señales de metadatos reconstruidas comprende las primeras muestras de metadatos de aquella de una o más señales de metadatos comprimidas y comprende adicionalmente una pluralidad de segundas muestras de metadatos. Por otra parte, el descodificador (110) de metadatos se configura para generar cada una de las segundas muestras de metadatos de cada señal de metadatos reconstruida de una o más señales de metadatos reconstruidas dependiendo de al menos dos de las primeras muestras de metadatos de la señal de metadatos reconstruida. Por otra parte, el aparato (100) comprende un generador (120) de canal de audio para generar uno o más canales de audio dependiendo de una o más señales de objetos de audio y dependiendo de una o más señales de metadatos reconstruidas. Además, se proporciona un aparato para generar información de audio codificada que comprende una o más señales de audio codificadas y una o más señales de metadatos comprimidos.
MX2016000907A 2013-07-22 2014-07-16 Aparato y metodo para la codificacion eficiente de metadatos de objetos. MX357576B (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP13177365 2013-07-22
EP20130177378 EP2830045A1 (en) 2013-07-22 2013-07-22 Concept for audio encoding and decoding for audio channels and audio objects
EP13177367 2013-07-22
EP13189284.6A EP2830049A1 (en) 2013-07-22 2013-10-18 Apparatus and method for efficient object metadata coding
PCT/EP2014/065299 WO2015011000A1 (en) 2013-07-22 2014-07-16 Apparatus and method for efficient object metadata coding

Publications (2)

Publication Number Publication Date
MX2016000907A true MX2016000907A (es) 2016-05-05
MX357576B MX357576B (es) 2018-07-16

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
MX2016000907A MX357576B (es) 2013-07-22 2014-07-16 Aparato y metodo para la codificacion eficiente de metadatos de objetos.
MX2016000908A MX357577B (es) 2013-07-22 2014-07-16 Aparato y metodo para la codificacion de metadatos de objetos con bajo retardo.

Family Applications After (1)

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MX2016000908A MX357577B (es) 2013-07-22 2014-07-16 Aparato y metodo para la codificacion de metadatos de objetos con bajo retardo.

Country Status (16)

Country Link
US (8) US9743210B2 (es)
EP (4) EP2830049A1 (es)
JP (2) JP6239110B2 (es)
KR (5) KR20230054741A (es)
CN (3) CN105474309B (es)
AU (2) AU2014295267B2 (es)
BR (2) BR112016001140B1 (es)
CA (2) CA2918860C (es)
ES (1) ES2881076T3 (es)
MX (2) MX357576B (es)
MY (1) MY176994A (es)
RU (2) RU2672175C2 (es)
SG (2) SG11201600471YA (es)
TW (1) TWI560703B (es)
WO (2) WO2015010996A1 (es)
ZA (2) ZA201601044B (es)

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