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MX2009003570A - Codificacion mejorada y representacion de parametros para codificacion de objetos de mezcla descendente de multicanal. - Google Patents

Codificacion mejorada y representacion de parametros para codificacion de objetos de mezcla descendente de multicanal.

Info

Publication number
MX2009003570A
MX2009003570A MX2009003570A MX2009003570A MX2009003570A MX 2009003570 A MX2009003570 A MX 2009003570A MX 2009003570 A MX2009003570 A MX 2009003570A MX 2009003570 A MX2009003570 A MX 2009003570A MX 2009003570 A MX2009003570 A MX 2009003570A
Authority
MX
Mexico
Prior art keywords
audio
generating
coding
output
downmix information
Prior art date
Application number
MX2009003570A
Other languages
English (en)
Inventor
Heiko Purnhagen
Jonas Engdegard
Lars Villemoes
Barbara Resch
Original Assignee
Dolby Sweden 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 Sweden Ab filed Critical Dolby Sweden Ab
Publication of MX2009003570A publication Critical patent/MX2009003570A/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
    • G10L19/04—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
    • G10L19/008—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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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 
    • 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
    • H04S2400/03—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 
    • 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 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Electron Tubes For Measurement (AREA)
  • Optical Measuring Cells (AREA)
  • Sorting Of Articles (AREA)
  • Telephone Function (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Se describe un codificador de objetos de audio para generar una señal de objetos codificada utilizando una pluralidad de objetos de audio que incluye un generador de información de mezcla descendente para generar información de mezcla descendente que indica la distribución de la pluralidad de objetos de audio a por lo menos dos canales de mezcla descendente, un generador de parámetros de objetos de audio para generar parámetros de objetos para los objetos de audio y una interfase de salida para generar la señal de salida de audio importada utilizando la información de mezcla descendente y los parámetros de objetos. Un sintetizador de audio utiliza la información de mezcla descendente para generar datos de salida utilizables para crear una pluralidad de canales de salida de la configuración de salida de audio predefinida.
MX2009003570A 2006-10-16 2007-10-05 Codificacion mejorada y representacion de parametros para codificacion de objetos de mezcla descendente de multicanal. MX2009003570A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82964906P 2006-10-16 2006-10-16
PCT/EP2007/008683 WO2008046531A1 (en) 2006-10-16 2007-10-05 Enhanced coding and parameter representation of multichannel downmixed object coding

Publications (1)

Publication Number Publication Date
MX2009003570A true MX2009003570A (es) 2009-05-28

Family

ID=38810466

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009003570A MX2009003570A (es) 2006-10-16 2007-10-05 Codificacion mejorada y representacion de parametros para codificacion de objetos de mezcla descendente de multicanal.

Country Status (21)

Country Link
US (2) US9565509B2 (es)
EP (3) EP2372701B1 (es)
JP (3) JP5270557B2 (es)
KR (2) KR101103987B1 (es)
CN (3) CN102892070B (es)
AT (2) ATE503245T1 (es)
AU (2) AU2007312598B2 (es)
BR (1) BRPI0715559B1 (es)
CA (3) CA2874454C (es)
DE (1) DE602007013415D1 (es)
ES (1) ES2378734T3 (es)
MX (1) MX2009003570A (es)
MY (1) MY145497A (es)
NO (1) NO340450B1 (es)
PL (1) PL2068307T3 (es)
PT (1) PT2372701E (es)
RU (1) RU2430430C2 (es)
SG (1) SG175632A1 (es)
TW (1) TWI347590B (es)
UA (1) UA94117C2 (es)
WO (1) WO2008046531A1 (es)

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BRPI0715559B1 (pt) 2021-12-07
ES2378734T3 (es) 2012-04-17
MY145497A (en) 2012-02-29
NO340450B1 (no) 2017-04-24
BRPI0715559A2 (pt) 2013-07-02
DE602007013415D1 (de) 2011-05-05
EP2054875A1 (en) 2009-05-06
KR20090057131A (ko) 2009-06-03
RU2011102416A (ru) 2012-07-27
EP2068307A1 (en) 2009-06-10
ATE503245T1 (de) 2011-04-15
CA2874454A1 (en) 2008-04-24
JP2012141633A (ja) 2012-07-26
WO2008046531A1 (en) 2008-04-24
EP2372701A1 (en) 2011-10-05
JP5297544B2 (ja) 2013-09-25
RU2009113055A (ru) 2010-11-27
TW200828269A (en) 2008-07-01
KR101103987B1 (ko) 2012-01-06
RU2430430C2 (ru) 2011-09-27
CA2666640A1 (en) 2008-04-24

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