MX349394B - Codificacion de escenas de audio. - Google Patents

Codificacion de escenas de audio.

Info

Publication number
MX349394B
MX349394B MX2015015988A MX2015015988A MX349394B MX 349394 B MX349394 B MX 349394B MX 2015015988 A MX2015015988 A MX 2015015988A MX 2015015988 A MX2015015988 A MX 2015015988A MX 349394 B MX349394 B MX 349394B
Authority
MX
Mexico
Prior art keywords
coding
audio
audio scenes
encoding
audio objects
Prior art date
Application number
MX2015015988A
Other languages
English (en)
Other versions
MX2015015988A (es
Inventor
Heiko Purnhagen
Lars Villemoes
Leif Jonas Samuelsson
Toni Hirvonen
Original Assignee
Dolby Int Ab
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 Dolby Int Ab filed Critical Dolby Int Ab
Publication of MX2015015988A publication Critical patent/MX2015015988A/es
Publication of MX349394B publication Critical patent/MX349394B/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
    • G10L19/04—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
    • 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 
    • 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 
    • 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
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

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)
  • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Error Detection And Correction (AREA)

Abstract

Los ejemplos de modalidades proporcionan métodos de codificación y decodificación, y codificadores y decodificadores asociados, para codificar y decodificar una escena de audio que comprende al menos uno o más objetos de audio (106a). El codificador (108, 110) genera una secuencia de bits (116) que comprende señales de mezcla (112) e información lateral que incluye elementos individuales de matriz (114) de una matriz de reconstrucción que facilitan la reconstrucción del uno o más objetos de audio (106a) en el decodificador (120).
MX2015015988A 2013-05-24 2014-05-23 Codificacion de escenas de audio. MX349394B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361827246P 2013-05-24 2013-05-24
PCT/EP2014/060727 WO2014187986A1 (en) 2013-05-24 2014-05-23 Coding of audio scenes

Publications (2)

Publication Number Publication Date
MX2015015988A MX2015015988A (es) 2016-04-13
MX349394B true MX349394B (es) 2017-07-26

Family

ID=50884378

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015015988A MX349394B (es) 2013-05-24 2014-05-23 Codificacion de escenas de audio.

Country Status (19)

Country Link
US (10) US10026408B2 (es)
EP (1) EP3005355B1 (es)
KR (1) KR101761569B1 (es)
CN (7) CN110085239B (es)
AU (1) AU2014270299B2 (es)
BR (2) BR122020017152B1 (es)
CA (5) CA3123374C (es)
DK (1) DK3005355T3 (es)
ES (1) ES2636808T3 (es)
HU (1) HUE033428T2 (es)
IL (10) IL296208B2 (es)
IN (1) IN2015MN03262A (es)
MX (1) MX349394B (es)
MY (4) MY203266A (es)
PL (1) PL3005355T3 (es)
RU (1) RU2608847C1 (es)
SG (1) SG11201508841UA (es)
UA (1) UA113692C2 (es)
WO (1) WO2014187986A1 (es)

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