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MX2009007412A - Decodificador de audio. - Google Patents

Decodificador de audio.

Info

Publication number
MX2009007412A
MX2009007412A MX2009007412A MX2009007412A MX2009007412A MX 2009007412 A MX2009007412 A MX 2009007412A MX 2009007412 A MX2009007412 A MX 2009007412A MX 2009007412 A MX2009007412 A MX 2009007412A MX 2009007412 A MX2009007412 A MX 2009007412A
Authority
MX
Mexico
Prior art keywords
audio signals
mix
received
audio
objects
Prior art date
Application number
MX2009007412A
Other languages
English (en)
Inventor
Dirk J Breebaart
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2009007412A publication Critical patent/MX2009007412A/es

Links

Classifications

    • 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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • 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

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)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un decodificador de audio (100) que comprende: medios de efecto, medios de decodificación, y medios de presentación. Los medios de efecto (500) generan señales de audio de mezcla modificadas de señales de audio de mezcla recibidas. Las señales de audio de mezcla recibidas comprenden una mezcla de una pluralidad de objetos de audio las señales de audio de mezcla modificadas se obtienen al aplicar efectos a señales de audio estimadas que corresponden a objetos de audio comprendidos en las señales de audio de mezcla recibidas. Las señales de audio estimadas se derivan de las señales de audio de mezcla recibidas con base en datos paramétricos recibidos. Los datos paramétricos recibidos comprenden una pluralidad de parámetros de objeto para cada uno de la pluralidad de objetos de audio. Las señales de audio de mezcla modificadas con base en un tipo del efecto aplicado se decodifican por medios de decodificación o se presentan por medios de presentación o se combinan con la salida de los medios de presentación. Los medios de decodificación (300) se distribuyen para decodificar los objetos de audio de las señales de audio de mezcla o las señales de audio de mezcla modificadas con base en los datos paramétricos. Los medios de presentación (400) se distribuyen para generar al menos una señal de audio de salida de los objetos de audio decodificados.
MX2009007412A 2007-01-10 2008-01-07 Decodificador de audio. MX2009007412A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07100339 2007-01-10
PCT/IB2008/050029 WO2008084427A2 (en) 2007-01-10 2008-01-07 Audio decoder

Publications (1)

Publication Number Publication Date
MX2009007412A true MX2009007412A (es) 2009-07-17

Family

ID=39609124

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009007412A MX2009007412A (es) 2007-01-10 2008-01-07 Decodificador de audio.

Country Status (10)

Country Link
US (1) US8634577B2 (es)
EP (1) EP2109861B1 (es)
JP (1) JP5455647B2 (es)
KR (1) KR101443568B1 (es)
CN (1) CN101578658B (es)
BR (1) BRPI0806346B1 (es)
MX (1) MX2009007412A (es)
RU (1) RU2466469C2 (es)
TR (1) TR201906713T4 (es)
WO (1) WO2008084427A2 (es)

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FR3013496A1 (fr) * 2013-11-15 2015-05-22 Orange Transition d'un codage/decodage par transformee vers un codage/decodage predictif
US10754925B2 (en) 2014-06-04 2020-08-25 Nuance Communications, Inc. NLU training with user corrections to engine annotations
US10373711B2 (en) 2014-06-04 2019-08-06 Nuance Communications, Inc. Medical coding system with CDI clarification request notification
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Also Published As

Publication number Publication date
WO2008084427A2 (en) 2008-07-17
BRPI0806346B1 (pt) 2020-09-29
KR101443568B1 (ko) 2014-09-23
JP5455647B2 (ja) 2014-03-26
WO2008084427A3 (en) 2009-03-12
TR201906713T4 (tr) 2019-05-21
RU2009130352A (ru) 2011-02-20
CN101578658B (zh) 2012-06-20
JP2010515944A (ja) 2010-05-13
BRPI0806346A2 (pt) 2011-09-06
EP2109861B1 (en) 2019-03-13
RU2466469C2 (ru) 2012-11-10
US8634577B2 (en) 2014-01-21
KR20090113286A (ko) 2009-10-29
CN101578658A (zh) 2009-11-11
US20100076774A1 (en) 2010-03-25
BRPI0806346A8 (pt) 2015-10-13
EP2109861A2 (en) 2009-10-21

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