Ecole d'ingénieur et centre de recherche en Sciences du numérique

A scalable frequency domain-based linear convolution architecture for speech enhancement

Yemdji, Christelle; Mossi, Moctar; Evans, Nicholas; Beaugeant, Christophe

DSP 2011, 17th International Conference on Digital Signal Processing, July 6-8, 2011, Corfu, Greece

    Most speech enhancement algorithms consist of a time-varying filter which is applied to the signal in the frequency domain. One of the motivations for filtering in the frequency domain compared to convolution in the time domain is to reduce the computational complexity. Filtering in the frequency domain, however, can introduce distortion if the linear convolution condition is not fulfilled. Although there are standard approaches to linear convolution in the frequency domain, they tend to be computationally prohibitive for small terminals. In this paper, we present a new and more efficient approach. The proposed approach is derived from the equivalence of zero-padding and interpolation in time and frequency domains. A distinct advantage of the approach proposed in this paper relates to its scalability which is exploited to manage computational complexity with only moderate degradation in speech quality.

Document Doi Bibtex

Titre:A scalable frequency domain-based linear convolution architecture for speech enhancement
Mots Clés:Linear convolution, circular convolution, speech enhancement, speech distortion
Type:Conférence
Langue:English
Ville:Corfu
Pays:GRÈCE
Date:
Département:Data Science
Eurecom ref:3386
Copyright: © 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Bibtex: @inproceedings{EURECOM+3386, doi = {http://dx.doi.org/10.1109/ICDSP.2011.6004894}, year = {2011}, title = {{A} scalable frequency domain-based linear convolution architecture for speech enhancement}, author = {{Y}emdji, {C}hristelle and {M}ossi, {M}octar and {E}vans, {N}icholas and {B}eaugeant, {C}hristophe}, booktitle = {{DSP} 2011, 17th {I}nternational {C}onference on {D}igital {S}ignal {P}rocessing, {J}uly 6-8, 2011, {C}orfu, {G}reece}, address = {{C}orfu, {GR}{\`{E}}{CE}}, month = {07}, url = {http://www.eurecom.fr/publication/3386} }
Voir aussi: