MXPA05011979A - Sistemas y metodos mejorados de codificacion de audio que utilizan el acoplamiento de componente espectral y la regeneracion de componente espectral. - Google Patents

Sistemas y metodos mejorados de codificacion de audio que utilizan el acoplamiento de componente espectral y la regeneracion de componente espectral.

Info

Publication number
MXPA05011979A
MXPA05011979A MXPA05011979A MXPA05011979A MXPA05011979A MX PA05011979 A MXPA05011979 A MX PA05011979A MX PA05011979 A MXPA05011979 A MX PA05011979A MX PA05011979 A MXPA05011979 A MX PA05011979A MX PA05011979 A MXPA05011979 A MX PA05011979A
Authority
MX
Mexico
Prior art keywords
spectral component
spectral components
signals
methods
audio coding
Prior art date
Application number
MXPA05011979A
Other languages
English (en)
Inventor
Stephen Decker Vernon
Original Assignee
Dolby Lab Licensing Corp
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 Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of MXPA05011979A publication Critical patent/MXPA05011979A/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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un codificador de audio desecha los componentes espectrales de una senal de entrada y utiliza el acoplamiento de canal para reducir los requerimientos de la capacidad de informacion de una senal codificada. El acoplamiento de canal presenta los componentes espectrales seleccionados de multiples canales de senales en una forma compuesta. Un decodificador de audio sintetiza los componentes espectrales para remplazar los componentes espectrales desechados y genera componentes espectrales para senales individuales de canal a partir de la senal de canal acoplado. El codificador proporciona factores de escala en la senal codificada que mejoran la eficiencia del decodificador para generar senales de salida que preservan, de manera sustancial, la energia espectral de l as senales de entrada originales. La figura mas representativa de la invencion es las numero 5.
MXPA05011979A 2003-05-08 2004-04-30 Sistemas y metodos mejorados de codificacion de audio que utilizan el acoplamiento de componente espectral y la regeneracion de componente espectral. MXPA05011979A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/434,449 US7318035B2 (en) 2003-05-08 2003-05-08 Audio coding systems and methods using spectral component coupling and spectral component regeneration
PCT/US2004/013217 WO2004102532A1 (en) 2003-05-08 2004-04-30 Improved audio coding systems and methods using spectral component coupling and spectral component regeneration

Publications (1)

Publication Number Publication Date
MXPA05011979A true MXPA05011979A (es) 2006-02-02

Family

ID=33416693

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05011979A MXPA05011979A (es) 2003-05-08 2004-04-30 Sistemas y metodos mejorados de codificacion de audio que utilizan el acoplamiento de componente espectral y la regeneracion de componente espectral.

Country Status (19)

Country Link
US (1) US7318035B2 (es)
EP (5) EP2535895B1 (es)
JP (1) JP4782685B2 (es)
KR (1) KR101085477B1 (es)
CN (1) CN100394476C (es)
AU (1) AU2004239655B2 (es)
BR (1) BRPI0410130B1 (es)
CA (1) CA2521601C (es)
DK (1) DK1620845T3 (es)
ES (2) ES2832606T3 (es)
HU (1) HUE045759T2 (es)
IL (1) IL171287A (es)
MX (1) MXPA05011979A (es)
MY (1) MY138877A (es)
PL (1) PL1620845T3 (es)
PT (1) PT2535895T (es)
SI (1) SI2535895T1 (es)
TW (1) TWI324762B (es)
WO (1) WO2004102532A1 (es)

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Also Published As

Publication number Publication date
MY138877A (en) 2009-08-28
EP3093844A1 (en) 2016-11-16
HUE045759T2 (hu) 2020-01-28
JP4782685B2 (ja) 2011-09-28
AU2004239655A1 (en) 2004-11-25
KR20060014386A (ko) 2006-02-15
TW200504683A (en) 2005-02-01
WO2004102532A1 (en) 2004-11-25
SI2535895T1 (sl) 2019-12-31
EP4057282A1 (en) 2022-09-14
DK1620845T3 (en) 2018-05-07
US20040225505A1 (en) 2004-11-11
EP3093844B1 (en) 2020-10-21
EP4057282B1 (en) 2023-08-09
ES2832606T3 (es) 2021-06-10
AU2004239655B2 (en) 2009-06-25
BRPI0410130B1 (pt) 2018-06-05
TWI324762B (en) 2010-05-11
EP1620845A1 (en) 2006-02-01
EP2535895A1 (en) 2012-12-19
CA2521601A1 (en) 2004-11-25
EP3757994B1 (en) 2022-04-27
EP2535895B1 (en) 2019-09-11
PL1620845T3 (pl) 2018-06-29
EP3757994A1 (en) 2020-12-30
CN100394476C (zh) 2008-06-11
JP2007501441A (ja) 2007-01-25
CN1781141A (zh) 2006-05-31
US7318035B2 (en) 2008-01-08
BRPI0410130A (pt) 2006-05-16
EP1620845B1 (en) 2018-02-28
KR101085477B1 (ko) 2011-11-21
CA2521601C (en) 2013-08-20
PT2535895T (pt) 2019-10-24
ES2664397T3 (es) 2018-04-19
IL171287A (en) 2009-09-22

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