AR072703A1 - Aparato y metodo para calcular datos de ampliacion de ancho de banda utilizando un encuadre controlado por pendiente espectral - Google Patents

Aparato y metodo para calcular datos de ampliacion de ancho de banda utilizando un encuadre controlado por pendiente espectral

Info

Publication number
AR072703A1
AR072703A1 ARP090102550A ARP090102550A AR072703A1 AR 072703 A1 AR072703 A1 AR 072703A1 AR P090102550 A ARP090102550 A AR P090102550A AR P090102550 A ARP090102550 A AR P090102550A AR 072703 A1 AR072703 A1 AR 072703A1
Authority
AR
Argentina
Prior art keywords
bandwidth extension
spectral
audio signal
spectral slope
appliance
Prior art date
Application number
ARP090102550A
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 AR072703A1 publication Critical patent/AR072703A1/es

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

Abstract

Un aparato para calcular la ampliacion de los datos de ancho de banda de una senal de audio en un sistema de ampliacion de ancho de banda, en el cual una primera banda espectral está codificada con un primer numero de bits y una segunda banda espectral distinta de !a primera banda espectral está codificada con un segundo numero de bits que más pequeno que el primer numero de bits, donde dicho aparato tiene una calculadora de parámetros de ampliacion de ancho de banda controlable (10) para calcular parámetros de ampliacion de ancho de banda para la segunda banda de frecuencia de un modo de tipo cuadro para una secuencia de cuadros de la senal de audio. Cada cuadro tiene un instante de tiempo de inicio controlable. El aparato comprende adicionalmente un detector de pendiente espectral (12) para detectar una pendiente espectral en una parte de tiempo de la senal de audio y para senalar el instante de tiempo de inicio para los cuadros individuales de la senal de audio dependiendo de la pendiente espectral.
ARP090102550A 2008-07-11 2009-07-07 Aparato y metodo para calcular datos de ampliacion de ancho de banda utilizando un encuadre controlado por pendiente espectral AR072703A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7987108P 2008-07-11 2008-07-11
PCT/EP2009/004520 WO2010003543A1 (en) 2008-07-11 2009-06-23 Apparatus and method for calculating bandwidth extension data using a spectral tilt controlling framing

Publications (1)

Publication Number Publication Date
AR072703A1 true AR072703A1 (es) 2010-09-15

Family

ID=40929509

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP090102550A AR072703A1 (es) 2008-07-11 2009-07-07 Aparato y metodo para calcular datos de ampliacion de ancho de banda utilizando un encuadre controlado por pendiente espectral

Country Status (19)

Country Link
US (1) US8788276B2 (es)
EP (1) EP2176862B1 (es)
JP (1) JP5010743B2 (es)
KR (1) KR101182258B1 (es)
CN (1) CN101836253B (es)
AR (1) AR072703A1 (es)
AT (1) ATE522901T1 (es)
AU (1) AU2009267529B2 (es)
BR (1) BRPI0904958B1 (es)
CA (1) CA2699316C (es)
ES (1) ES2372014T3 (es)
HK (1) HK1142432A1 (es)
IL (1) IL203928A (es)
MY (1) MY150373A (es)
PL (1) PL2176862T3 (es)
RU (1) RU2443028C2 (es)
TW (1) TWI457914B (es)
WO (1) WO2010003543A1 (es)
ZA (1) ZA201000941B (es)

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Also Published As

Publication number Publication date
AU2009267529B2 (en) 2011-03-03
TW201007709A (en) 2010-02-16
KR20100083135A (ko) 2010-07-21
US8788276B2 (en) 2014-07-22
EP2176862B1 (en) 2011-08-31
MY150373A (en) 2013-12-31
AU2009267529A1 (en) 2010-01-14
KR101182258B1 (ko) 2012-09-14
ATE522901T1 (de) 2011-09-15
RU2443028C2 (ru) 2012-02-20
BRPI0904958A2 (pt) 2015-06-30
HK1142432A1 (en) 2010-12-03
US20110099018A1 (en) 2011-04-28
WO2010003543A1 (en) 2010-01-14
RU2010109206A (ru) 2011-09-20
BRPI0904958B1 (pt) 2020-03-03
JP2011501225A (ja) 2011-01-06
ES2372014T3 (es) 2012-01-13
CN101836253B (zh) 2012-06-13
CN101836253A (zh) 2010-09-15
CA2699316A1 (en) 2010-01-14
JP5010743B2 (ja) 2012-08-29
PL2176862T3 (pl) 2012-03-30
IL203928A (en) 2013-06-27
CA2699316C (en) 2014-03-18
EP2176862A1 (en) 2010-04-21
ZA201000941B (en) 2011-04-28
TWI457914B (zh) 2014-10-21

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