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AR101853A2 - Aparato y método para procesar una señal de audio por submuestreo - Google Patents

Aparato y método para procesar una señal de audio por submuestreo

Info

Publication number
AR101853A2
AR101853A2 ARP150102919A ARP150102919A AR101853A2 AR 101853 A2 AR101853 A2 AR 101853A2 AR P150102919 A ARP150102919 A AR P150102919A AR P150102919 A ARP150102919 A AR P150102919A AR 101853 A2 AR101853 A2 AR 101853A2
Authority
AR
Argentina
Prior art keywords
audio signal
configurable
samples
oversampling
signal processor
Prior art date
Application number
ARP150102919A
Other languages
English (en)
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
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of AR101853A2 publication Critical patent/AR101853A2/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
    • G10L21/04—Time compression or expansion
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • 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
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation

Landscapes

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

Abstract

Se presenta un aparato para procesar una señal de audio. El aparato comprende un procesador de señales (110; 205; 405) y un configurador (120; 208; 408). El procesador de señales (110; 205; 405) está adaptado para recibir un primera trama de la señal de audio que tiene un primer número de muestras configurable de la señal de audio, Más aun, el procesador de señales (110; 205; 405) está adaptado para realizar sobremuestreo (upsampling) de la señal de audio por un factor configurable de sobremuestreo para obtener una señal de audio procesada. Por añadidura, el procesador de señales (110; 205; 405) está adaptado para emitir un segunda trama de la señal de audio que tiene un segundo número de muestras configurable de la señal de audio procesada. El configurador (120; 208; 408) está adaptado para configurar el procesador de señales (110; 205; 405) sobre la base de la información de configuración de manera tal que el factor configurable de sobremuestreo sea igual a un primer valor de sobremuestreo cuando una primera relación del segundo número de muestras configurable al primer número de muestras configurable tiene un primer valor de relación. Más aun, el configurador (120; 208; 408) está adaptado para configurar el procesador de señales (110; 205; 405) de manera tal que el factor configurable de sobremuestreo es igual a un segundo valor diferente de sobremuestreo, cuando una segunda relación diferente del segundo número de muestras configurable al primer número de muestras configurable tiene un segundo valor de relación diferente. El valor de la primera o la segunda relación no es un número entero. El presente comprende además un método llevado a cabo mediante el aparato que realiza sobremuestreo, un aparato que realiza submuestreo de la señal de audio y un método llevado a cabo por el mismo.
ARP150102919A 2010-10-06 2015-09-14 Aparato y método para procesar una señal de audio por submuestreo AR101853A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39026710P 2010-10-06 2010-10-06

Publications (1)

Publication Number Publication Date
AR101853A2 true AR101853A2 (es) 2017-01-18

Family

ID=44759689

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP110103684A AR083303A1 (es) 2010-10-06 2011-10-04 Aparato y metodo para procesar una señal de audio y para otorgar una mayor granularidad temporal para un codificador-decodificador combinado y unificado de voz y audio (usac)
ARP150102919A AR101853A2 (es) 2010-10-06 2015-09-14 Aparato y método para procesar una señal de audio por submuestreo

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP110103684A AR083303A1 (es) 2010-10-06 2011-10-04 Aparato y metodo para procesar una señal de audio y para otorgar una mayor granularidad temporal para un codificador-decodificador combinado y unificado de voz y audio (usac)

Country Status (18)

Country Link
US (1) US9552822B2 (es)
EP (1) EP2625688B1 (es)
JP (1) JP6100164B2 (es)
KR (1) KR101407120B1 (es)
CN (1) CN103403799B (es)
AR (2) AR083303A1 (es)
AU (1) AU2011311659B2 (es)
BR (1) BR112013008463B8 (es)
CA (1) CA2813859C (es)
ES (1) ES2530957T3 (es)
HK (1) HK1190223A1 (es)
MX (1) MX2013003782A (es)
MY (1) MY155997A (es)
PL (1) PL2625688T3 (es)
RU (1) RU2562384C2 (es)
SG (1) SG189277A1 (es)
TW (1) TWI486950B (es)
WO (1) WO2012045744A1 (es)

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Also Published As

Publication number Publication date
ES2530957T3 (es) 2015-03-09
RU2562384C2 (ru) 2015-09-10
SG189277A1 (en) 2013-05-31
KR20130069821A (ko) 2013-06-26
CN103403799A (zh) 2013-11-20
MY155997A (en) 2015-12-31
RU2013120320A (ru) 2014-11-20
CA2813859C (en) 2016-07-12
AU2011311659A1 (en) 2013-05-02
BR112013008463B1 (pt) 2021-06-01
JP6100164B2 (ja) 2017-03-22
PL2625688T3 (pl) 2015-05-29
BR112013008463B8 (pt) 2022-04-05
EP2625688A1 (en) 2013-08-14
AU2011311659B2 (en) 2015-07-30
CN103403799B (zh) 2015-09-16
TW201222532A (en) 2012-06-01
US9552822B2 (en) 2017-01-24
WO2012045744A1 (en) 2012-04-12
BR112013008463A2 (pt) 2016-08-09
KR101407120B1 (ko) 2014-06-13
HK1190223A1 (en) 2014-06-27
EP2625688B1 (en) 2014-12-03
MX2013003782A (es) 2013-10-03
AR083303A1 (es) 2013-02-13
CA2813859A1 (en) 2012-04-12
TWI486950B (zh) 2015-06-01
US20130226570A1 (en) 2013-08-29
JP2013543600A (ja) 2013-12-05

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