CO6541514A2 - APPARATUS AND METHOD FOR GENERATING AN EXTENDED BANDWIDTH SIGNAL - Google Patents

APPARATUS AND METHOD FOR GENERATING AN EXTENDED BANDWIDTH SIGNAL

Info

Publication number
CO6541514A2
CO6541514A2 CO10164070A CO10164070A CO6541514A2 CO 6541514 A2 CO6541514 A2 CO 6541514A2 CO 10164070 A CO10164070 A CO 10164070A CO 10164070 A CO10164070 A CO 10164070A CO 6541514 A2 CO6541514 A2 CO 6541514A2
Authority
CO
Colombia
Prior art keywords
patch
input signal
extended bandwidth
band
generating
Prior art date
Application number
CO10164070A
Other languages
Spanish (es)
Inventor
Frederik Nagel
Sascha Disch
Max Neuendorf
Stefan Bayer
Marc Gayer
Markus Lohwasser
Nikolaus Rettelbach
Ulrich Kramer
Original Assignee
Fraunhofer Ges Ev
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 Ev filed Critical Fraunhofer Ges Ev
Publication of CO6541514A2 publication Critical patent/CO6541514A2/en

Links

Classifications

    • 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
    • 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
    • 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

Abstract

Un aparato para generar una señal de ancho de banda ampliado desde una señal de entrada que comprende un generador y un combinador. La señal de entrada está representada, para una primera banda por datos de primera resolución y para una segunda banda por datos de segunda resolución, la segunda resolución es menor a la primera resolución. El generador de parche genera un primer parche desde la primera banda de la señal de entrada de acuerdo con un primer algoritmo de implementación de parches y configurado para generar un segundo parche desde la primera banda de la señal de entrada de acuerdo con un segundo algoritmo de implementación de parches. Una densidad espectral del segundo parche generado de acuerdo con el segundo algoritmo de implementación de parches es mayor a la densidad espectral del primer parche generado de acuerdo con el primer algoritmo de implementación de parches. El combinador combina el primer parche, el segundo parche y la primera banda de la señal de entrada para obtener la señal de ancho de banda ampliado. El aparato para generar una señal de ancho de banda ampliado está configurado para ajustar a escala la señal de entrada de acuerdo con el primer algoritmo de implementación de parches y de acuerdo con el segundo algoritmo de implementación de parches o para ajustar a escala el primer parche y el segundo parche, para que la señal de ancho de banda ampliado cumpla con el criterio de envolvente espectral.An apparatus for generating an extended bandwidth signal from an input signal comprising a generator and a combiner. The input signal is represented, for a first band by first resolution data and for a second band by second resolution data, the second resolution is smaller than the first resolution. The patch generator generates a first patch from the first band of the input signal according to a first patch implementation algorithm and configured to generate a second patch from the first band of the input signal according to a second algorithm of patch implementation. A spectral density of the second patch generated according to the second patch implementation algorithm is greater than the spectral density of the first patch generated according to the first patch implementation algorithm. The combiner combines the first patch, the second patch and the first band of the input signal to obtain the extended bandwidth signal. The apparatus for generating an extended bandwidth signal is configured to scale the input signal in accordance with the first patch implementation algorithm and in accordance with the second patch implementation algorithm or to scale the first patch and the second patch, so that the extended bandwidth signal meets the spectral envelope criteria.

CO10164070A 2008-07-11 2010-12-29 APPARATUS AND METHOD FOR GENERATING AN EXTENDED BANDWIDTH SIGNAL CO6541514A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7984908P 2008-07-11 2008-07-11

Publications (1)

Publication Number Publication Date
CO6541514A2 true CO6541514A2 (en) 2012-10-16

Family

ID=41162740

Family Applications (1)

Application Number Title Priority Date Filing Date
CO10164070A CO6541514A2 (en) 2008-07-11 2010-12-29 APPARATUS AND METHOD FOR GENERATING AN EXTENDED BANDWIDTH SIGNAL

Country Status (18)

Country Link
EP (1) EP2291842B1 (en)
JP (1) JP5255699B2 (en)
KR (1) KR101239812B1 (en)
CN (1) CN102105931B (en)
AR (1) AR072483A1 (en)
AU (1) AU2009267460B2 (en)
BR (2) BRPI0910528B1 (en)
CA (1) CA2729474C (en)
CO (1) CO6541514A2 (en)
ES (1) ES2461141T3 (en)
HK (1) HK1154112A1 (en)
MX (1) MX2011000365A (en)
MY (1) MY163454A (en)
PL (1) PL2291842T3 (en)
RU (1) RU2512090C2 (en)
TW (1) TWI415116B (en)
WO (1) WO2010003557A1 (en)
ZA (1) ZA201009164B (en)

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Also Published As

Publication number Publication date
RU2512090C2 (en) 2014-04-10
BRPI0910528A2 (en) 2018-05-22
ZA201009164B (en) 2011-10-26
KR20110033188A (en) 2011-03-30
AU2009267460A1 (en) 2010-01-14
ES2461141T3 (en) 2014-05-16
BR122017003818A2 (en) 2019-09-03
MX2011000365A (en) 2011-02-25
TWI415116B (en) 2013-11-11
JP2011527452A (en) 2011-10-27
PL2291842T3 (en) 2014-08-29
HK1154112A1 (en) 2012-04-20
AU2009267460B2 (en) 2013-01-10
CA2729474C (en) 2015-09-01
KR101239812B1 (en) 2013-03-06
CN102105931A (en) 2011-06-22
EP2291842A1 (en) 2011-03-09
JP5255699B2 (en) 2013-08-07
WO2010003557A1 (en) 2010-01-14
BR122017003818B1 (en) 2024-03-05
BRPI0910528B1 (en) 2020-09-24
CN102105931B (en) 2013-04-10
CA2729474A1 (en) 2010-01-14
RU2011100134A (en) 2012-07-20
EP2291842B1 (en) 2014-03-12
TW201007708A (en) 2010-02-16
AR072483A1 (en) 2010-09-01
MY163454A (en) 2017-09-15

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