AR096692A1 - APPLIANCE AND METHOD FOR IMPROVED SIGNAL DEFROSTING FOR AUDIO CODING SYSTEMS SWITCHED DURING THE HIDDEN OF ERRORS - Google Patents

APPLIANCE AND METHOD FOR IMPROVED SIGNAL DEFROSTING FOR AUDIO CODING SYSTEMS SWITCHED DURING THE HIDDEN OF ERRORS

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Publication number
AR096692A1
AR096692A1 ARP140102357A ARP140102357A AR096692A1 AR 096692 A1 AR096692 A1 AR 096692A1 AR P140102357 A ARP140102357 A AR P140102357A AR P140102357 A ARP140102357 A AR P140102357A AR 096692 A1 AR096692 A1 AR 096692A1
Authority
AR
Argentina
Prior art keywords
audio signal
domain
frame
reconstruction
noise level
Prior art date
Application number
ARP140102357A
Other languages
Spanish (es)
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 AR096692A1 publication Critical patent/AR096692A1/en

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Abstract

Se presenta un aparato para decodificar una señal de audio. El aparato comprende una interfaz de recepción (110), donde la interfaz de recepción (110) está configurada para recibir una primera trama que comprende una primera porción de la señal de audio de la señal de audio, y donde la interfaz de recepción (110) está configurada para recibir una segunda trama que comprende una segunda porción de la señal de audio de la señal de audio. Más aún, el aparato comprende una unidad de rastreo de nivel de ruido (130), donde la unidad de rastreo de nivel de ruido (130) está configurada para determinar la información de nivel de ruido dependiendo de por lo menos una de la primera porción de la señal de audio y la segunda porción de la señal de audio, donde la información de nivel de ruido está representada en un dominio de rastreo. Por añadidura, el aparato comprende una primera unidad de reconstrucción (140) para reconstruir, en un primer dominio de reconstrucción, una tercera porción de la señal de audio de la señal de audio dependiendo de la información de nivel de ruido, si una tercera trama de la pluralidad de tramas no es recibida por la interfaz de recepción (110) o si dicha tercera trama es recibida por la interfaz de recepción (110) pero está corrupta, donde el primer dominio de reconstrucción es diferente o igual al dominio de rastreo. Más aún, el aparato comprende una unidad de transformación (121) para transformar la información de nivel de ruido del dominio de rastreo a un segundo dominio de reconstrucción, si una cuarta trama de la pluralidad de tramas no es recibida por la interfaz de recepción (110) o si dicha cuarta trama es recibida por la interfaz de recepción (110) pero está corrupta, donde el segundo dominio de reconstrucción es diferente del dominio de rastreo, y donde el segundo dominio de reconstrucción es diferente del primer dominio de reconstrucción. Por añadidura, el aparato comprende una segunda unidad de reconstrucción (141) para reconstruir, en el segundo dominio de reconstrucción, una cuarta porción de la señal de audio de la señal de audio dependiendo de la información de nivel de ruido que está representada en el segundo dominio de reconstrucción, si dicha cuarta trama de la pluralidad de tramas no es recibida por la interfaz de recepción (110) o si dicha cuarta trama es recibida por la interfaz de recepción (110) pero está corrupta.An apparatus for decoding an audio signal is presented. The apparatus comprises a reception interface (110), where the reception interface (110) is configured to receive a first frame comprising a first portion of the audio signal of the audio signal, and where the reception interface (110 ) is configured to receive a second frame comprising a second portion of the audio signal of the audio signal. Moreover, the apparatus comprises a noise level tracking unit (130), where the noise level tracking unit (130) is configured to determine the noise level information depending on at least one of the first portion of the audio signal and the second portion of the audio signal, where the noise level information is represented in a tracking domain. In addition, the apparatus comprises a first reconstruction unit (140) to reconstruct, in a first reconstruction domain, a third portion of the audio signal of the audio signal depending on the noise level information, if a third frame of the plurality of frames is not received by the receiving interface (110) or if said third frame is received by the receiving interface (110) but is corrupt, where the first reconstruction domain is different or equal to the tracking domain. Moreover, the apparatus comprises a transformation unit (121) for transforming the noise level information of the tracking domain to a second reconstruction domain, if a fourth frame of the plurality of frames is not received by the receiving interface ( 110) or if said fourth frame is received by the receiving interface (110) but is corrupted, where the second reconstruction domain is different from the tracking domain, and where the second reconstruction domain is different from the first reconstruction domain. In addition, the apparatus comprises a second reconstruction unit (141) for reconstructing, in the second reconstruction domain, a fourth portion of the audio signal of the audio signal depending on the noise level information that is represented in the second reconstruction domain, if said fourth frame of the plurality of frames is not received by the receiving interface (110) or if said fourth frame is received by the receiving interface (110) but is corrupted.

ARP140102357A 2013-06-21 2014-06-23 APPLIANCE AND METHOD FOR IMPROVED SIGNAL DEFROSTING FOR AUDIO CODING SYSTEMS SWITCHED DURING THE HIDDEN OF ERRORS AR096692A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13173154 2013-06-21

Publications (1)

Publication Number Publication Date
AR096692A1 true AR096692A1 (en) 2016-01-27

Family

ID=48699569

Family Applications (5)

Application Number Title Priority Date Filing Date
ARP140102360A AR096695A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR PERFORMING A WHITE NOISE MDCT SPECTRUM BEFORE APPLYING FDNS
ARP140102358A AR096693A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR GENERATING AN ADAPTIVE SPECTRAL FORM OF COMFORT NOISE
ARP140102361A AR096696A1 (en) 2013-06-21 2014-06-23 APPLIANCE AND METHOD PERFORMING IMPROVED CONCEPTS FOR TCX LTP
ARP140102357A AR096692A1 (en) 2013-06-21 2014-06-23 APPLIANCE AND METHOD FOR IMPROVED SIGNAL DEFROSTING FOR AUDIO CODING SYSTEMS SWITCHED DURING THE HIDDEN OF ERRORS
ARP140102363A AR096698A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR IMPROVING SIGNAL IMPROVED IN DIFFERENT DOMAINS DURING HIDDEN ERRORS

Family Applications Before (3)

Application Number Title Priority Date Filing Date
ARP140102360A AR096695A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR PERFORMING A WHITE NOISE MDCT SPECTRUM BEFORE APPLYING FDNS
ARP140102358A AR096693A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR GENERATING AN ADAPTIVE SPECTRAL FORM OF COMFORT NOISE
ARP140102361A AR096696A1 (en) 2013-06-21 2014-06-23 APPLIANCE AND METHOD PERFORMING IMPROVED CONCEPTS FOR TCX LTP

Family Applications After (1)

Application Number Title Priority Date Filing Date
ARP140102363A AR096698A1 (en) 2013-06-21 2014-06-23 APPARATUS AND METHOD FOR IMPROVING SIGNAL IMPROVED IN DIFFERENT DOMAINS DURING HIDDEN ERRORS

Country Status (1)

Country Link
AR (5) AR096695A1 (en)

Also Published As

Publication number Publication date
AR096696A1 (en) 2016-01-27
AR096698A1 (en) 2016-01-27
AR096695A1 (en) 2016-01-27
AR096693A1 (en) 2016-01-27

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