Denoising audio signals in the non-negative auditory cortical domain

In this work, a biologically-inspired denoising method for audio signals is presented, which takes advantage of an approximation to the acoustical signal representation at the auditory cortical level. It is based on an optimal dictionary of atoms, estimated from early auditory spectrograms, and the...

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Detalles Bibliográficos
Autores principales: Martínez, C., Goddard, J., Di Persi, L.L., Milone, Diego Humberto, Rufiner, Hugo Leonardo
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Informáticas
auditory
cortical domain
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125316
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125316
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Informáticas
auditory
cortical domain
spellingShingle Ciencias Informáticas
auditory
cortical domain
Martínez, C.
Goddard, J.
Di Persi, L.L.
Milone, Diego Humberto
Rufiner, Hugo Leonardo
Denoising audio signals in the non-negative auditory cortical domain
topic_facet Ciencias Informáticas
auditory
cortical domain
description In this work, a biologically-inspired denoising method for audio signals is presented, which takes advantage of an approximation to the acoustical signal representation at the auditory cortical level. It is based on an optimal dictionary of atoms, estimated from early auditory spectrograms, and the Basis Pursuit algorithm to approximate the cortical activations. The proposed approach employs non-negative sparse coding to pursue a simplified denoising algorithm which exploits a priori information from both clean signals and noise. The method was applied to artificial signals constructed from simultaneous chirps, corrupted with additive noise. Results showed that using an objective quality measure, the method proposed here can improve the audio quality when it is applied to noisy signals.
format Objeto de conferencia
Objeto de conferencia
author Martínez, C.
Goddard, J.
Di Persi, L.L.
Milone, Diego Humberto
Rufiner, Hugo Leonardo
author_facet Martínez, C.
Goddard, J.
Di Persi, L.L.
Milone, Diego Humberto
Rufiner, Hugo Leonardo
author_sort Martínez, C.
title Denoising audio signals in the non-negative auditory cortical domain
title_short Denoising audio signals in the non-negative auditory cortical domain
title_full Denoising audio signals in the non-negative auditory cortical domain
title_fullStr Denoising audio signals in the non-negative auditory cortical domain
title_full_unstemmed Denoising audio signals in the non-negative auditory cortical domain
title_sort denoising audio signals in the non-negative auditory cortical domain
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/125316
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AT goddardj denoisingaudiosignalsinthenonnegativeauditorycorticaldomain
AT dipersill denoisingaudiosignalsinthenonnegativeauditorycorticaldomain
AT milonediegohumberto denoisingaudiosignalsinthenonnegativeauditorycorticaldomain
AT rufinerhugoleonardo denoisingaudiosignalsinthenonnegativeauditorycorticaldomain
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