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AR097003A1 - Concepto para codificación y decodificación de audio para canales de audio y objetos de audio - Google Patents

Concepto para codificación y decodificación de audio para canales de audio y objetos de audio

Info

Publication number
AR097003A1
AR097003A1 ARP140102706A ARP140102706A AR097003A1 AR 097003 A1 AR097003 A1 AR 097003A1 AR P140102706 A ARP140102706 A AR P140102706A AR P140102706 A ARP140102706 A AR P140102706A AR 097003 A1 AR097003 A1 AR 097003A1
Authority
AR
Argentina
Prior art keywords
audio
channels
objects
encoder
data
Prior art date
Application number
ARP140102706A
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 AR097003A1 publication Critical patent/AR097003A1/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
    • G10L19/02—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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Codificador de audio para codificar datos de entrada de audio (101) para obtener datos de salida de audio (501) comprende una interfaz de salida (100) para recibir una pluralidad de canales de audio, una pluralidad de objetos de audio y meta-datos relacionados con uno o más de la pluralidad de objetos de audio; un mezclador (200) para mezclar la pluralidad de objetos y la pluralidad de canales para obtener una pluralidad de canales mezclados previamente, cada canal mezclado previamente que comprende datos de audio de un canal y datos de audio de por lo menos un objeto; un codificador central (300) para codificar en forma central datos de entrada del codificador central; y un compresor de meta-datos (400) para comprimir los meta-datos relacionados con el uno o más de la pluralidad de objetos de audio, en donde el codificador de audio se configura para operar en por lo menos un modo del grupo de dos modos que comprende un primer modo, en el cual el codificador central se configura para codificar la pluralidad de canales de audio y la pluralidad de objetos de audio recibidos por la interfaz de entrada as datos de entrada del codificador central, y un segundo modo, en el cual el codificador central (300) se configura para recibir, as los datos de entrada del codificador central, la pluralidad de canales mezclados previamente generados por el mezclador (200).
ARP140102706A 2013-07-22 2014-07-21 Concepto para codificación y decodificación de audio para canales de audio y objetos de audio AR097003A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20130177378 EP2830045A1 (en) 2013-07-22 2013-07-22 Concept for audio encoding and decoding for audio channels and audio objects

Publications (1)

Publication Number Publication Date
AR097003A1 true AR097003A1 (es) 2016-02-10

Family

ID=48803456

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP140102706A AR097003A1 (es) 2013-07-22 2014-07-21 Concepto para codificación y decodificación de audio para canales de audio y objetos de audio

Country Status (18)

Country Link
US (3) US10249311B2 (es)
EP (4) EP2830045A1 (es)
JP (1) JP6268286B2 (es)
KR (2) KR101979578B1 (es)
CN (2) CN105612577B (es)
AR (1) AR097003A1 (es)
AU (1) AU2014295269B2 (es)
BR (1) BR112016001143B1 (es)
CA (3) CA3251771A1 (es)
ES (2) ES2913849T3 (es)
MX (1) MX359159B (es)
PL (2) PL4033485T3 (es)
PT (1) PT3025329T (es)
RU (1) RU2641481C2 (es)
SG (1) SG11201600476RA (es)
TW (1) TWI566235B (es)
WO (1) WO2015010998A1 (es)
ZA (1) ZA201601076B (es)

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