CO6341671A2 - Codificador de audio, decodificador de audio, metodos para la codificacion y decodificacion de audio,transmision de audio y programa de computacion - Google Patents

Codificador de audio, decodificador de audio, metodos para la codificacion y decodificacion de audio,transmision de audio y programa de computacion

Info

Publication number
CO6341671A2
CO6341671A2 CO11001536A CO11001536A CO6341671A2 CO 6341671 A2 CO6341671 A2 CO 6341671A2 CO 11001536 A CO11001536 A CO 11001536A CO 11001536 A CO11001536 A CO 11001536A CO 6341671 A2 CO6341671 A2 CO 6341671A2
Authority
CO
Colombia
Prior art keywords
audio
encoder
transmission
audio transmission
audio signal
Prior art date
Application number
CO11001536A
Other languages
English (en)
Inventor
Nikolaus Rettelbach
Bernhard Grill
Jens Hirschfeld
Geraid Schuller
Stefan Wabnik
Juergen Herre
Harald Popp
Markus Multrus
Stefan Geyersberger
Guillaume Fuchs
Original Assignee
Fraunhofer Ges Forschung
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40941986&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CO6341671(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of CO6341671A2 publication Critical patent/CO6341671A2/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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • 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
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Un codificador para proveer una transmisión de audio sobre la base de una representación en el dominio de la transformación de una señal de audio de entrada comprende un calculador de error de cuantificación configurado para determinar un error de cuantificación de múltiples bandas sobre una pluralidad de bandas de frecuencia de la señal de audio de entrada, para la cual está disponible una información separada de ganancia de banda. El codificador también comprende un proveedor de transmisión de audio configurado para proveer la transmisión de audio de modo que la transmisión de audio comprenda una información que describe un contenido de audio de las bandas de frecuencia y una información que describe el error de cuantificación de múltiples bandas.Un decodificador para proveer una representación decodificada de una señal de audio sobre la base de una transmisión de audio codificada, que representa los componentes espectrales de las bandas de frecuencia de la señal de audio, comprende un rellenador de ruido configurado para introducir ruido 4entro de los componentes espectrales de una pluralidad de bandas de frecuencia, a las cuales se asocia una información de ganancia de bandas de frecuencia separada sobre la base de un valor de intensidad de ruido de múltiples bandas.
CO11001536A 2008-07-11 2011-01-07 Codificador de audio, decodificador de audio, metodos para la codificacion y decodificacion de audio,transmision de audio y programa de computacion CO6341671A2 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7987208P 2008-07-11 2008-07-11
US10382008P 2008-10-08 2008-10-08

Publications (1)

Publication Number Publication Date
CO6341671A2 true CO6341671A2 (es) 2011-11-21

Family

ID=40941986

Family Applications (2)

Application Number Title Priority Date Filing Date
CO11001536A CO6341671A2 (es) 2008-07-11 2011-01-07 Codificador de audio, decodificador de audio, metodos para la codificacion y decodificacion de audio,transmision de audio y programa de computacion
CO11003109A CO6280569A2 (es) 2008-07-11 2011-01-13 Rellenador de ruido, calculador de parametro de relleno de ruido, metodo para proporcionar un parametro de relleno de ruido, metodo para proporcionar una representacion espectra rellenada con ruido de una señal de audio, programa de computadora corre

Family Applications After (1)

Application Number Title Priority Date Filing Date
CO11003109A CO6280569A2 (es) 2008-07-11 2011-01-13 Rellenador de ruido, calculador de parametro de relleno de ruido, metodo para proporcionar un parametro de relleno de ruido, metodo para proporcionar una representacion espectra rellenada con ruido de una señal de audio, programa de computadora corre

Country Status (22)

Country Link
US (9) US9043203B2 (es)
EP (12) EP4407610A1 (es)
JP (2) JP5622726B2 (es)
KR (4) KR101518532B1 (es)
CN (2) CN102089808B (es)
AR (2) AR072482A1 (es)
AT (1) ATE535903T1 (es)
AU (2) AU2009267459B2 (es)
BR (6) BRPI0910811B1 (es)
CA (2) CA2730361C (es)
CO (2) CO6341671A2 (es)
EG (1) EG26480A (es)
ES (5) ES2642906T3 (es)
HK (2) HK1157045A1 (es)
MX (2) MX2011000382A (es)
MY (2) MY178597A (es)
PL (3) PL3246918T3 (es)
PT (1) PT2304719T (es)
RU (2) RU2519069C2 (es)
TW (2) TWI417871B (es)
WO (2) WO2010003556A1 (es)
ZA (2) ZA201100085B (es)

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