Enhancement of speech corrupted by broadband noise is subject of interest in many applications. For several years, the investigation of methods of denoising the vocal signal has yielded very satisfactory results, but certain problems and questions still remain. The term speech quality in speech enhancement is associated with clarity and intelligibility. So, one of these issues is to reach a compromise between noise reduction, signal distortion and musical noise. In this paper, we studied one of the classical techniques based on the spectral subtraction developed by Boll and improved by Berouti where two parameters α and β to control the effects of the distortion and the musical noise are introduced. However, the choice on these parameters (α and β) remains empirical. Our works is to find a compromise between these two parameters to obtain an optimal solution depending on the environment, the unknown noise and its level. Moreover, we propose in this paper, an algorithm based on bi-objective approach precisely Particle Swarm Optimization (PSO) technique in association with speech enhancement technique proposed by Berouti et al. Comparative results show that the performance of our proposed method with several types of noise, depending on the environment and on various noise levels, are better than those of spectral subtraction methods of Boll or Berouti.
Mots-clés : Speech enhancement, spectral subtraction, multiobjective optimization, meta-heuristic, PSO
@article{RO_2020__54_6_1555_0,
author = {Ouznadji, Said and Chaabane, Djamal and Thameri, Messaoud},
title = {Multiple objective optimization {Applied} to {Speech} enhancement problem},
journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
pages = {1555--1572},
publisher = {EDP-Sciences},
volume = {54},
number = {6},
year = {2020},
doi = {10.1051/ro/2019106},
mrnumber = {4150245},
language = {en},
url = {http://www.numdam.org/articles/10.1051/ro/2019106/}
}
TY - JOUR AU - Ouznadji, Said AU - Chaabane, Djamal AU - Thameri, Messaoud TI - Multiple objective optimization Applied to Speech enhancement problem JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2020 SP - 1555 EP - 1572 VL - 54 IS - 6 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2019106/ DO - 10.1051/ro/2019106 LA - en ID - RO_2020__54_6_1555_0 ER -
%0 Journal Article %A Ouznadji, Said %A Chaabane, Djamal %A Thameri, Messaoud %T Multiple objective optimization Applied to Speech enhancement problem %J RAIRO - Operations Research - Recherche Opérationnelle %D 2020 %P 1555-1572 %V 54 %N 6 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2019106/ %R 10.1051/ro/2019106 %G en %F RO_2020__54_6_1555_0
Ouznadji, Said; Chaabane, Djamal; Thameri, Messaoud. Multiple objective optimization Applied to Speech enhancement problem. RAIRO - Operations Research - Recherche Opérationnelle, Tome 54 (2020) no. 6, pp. 1555-1572. doi : 10.1051/ro/2019106. http://www.numdam.org/articles/10.1051/ro/2019106/
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