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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<jats:italic>\u03b1<\/jats:italic>and<jats:italic>\u03b2<\/jats:italic>to control the effects of the distortion and the musical noise are introduced. However, the choice on these parameters (<jats:italic>\u03b1<\/jats:italic>and<jats:italic>\u03b2<\/jats:italic>) 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<jats:italic>et al.<\/jats:italic>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.<\/jats:p>","DOI":"10.1051\/ro\/2019106","type":"journal-article","created":{"date-parts":[[2019,11,19]],"date-time":"2019-11-19T09:08:58Z","timestamp":1574154538000},"page":"1555-1572","source":"Crossref","is-referenced-by-count":2,"title":["Multiple objective optimization Applied to Speech enhancement problem"],"prefix":"10.1051","volume":"54","author":[{"given":"Said","family":"Ouznadji","sequence":"first","affiliation":[]},{"given":"Djamal","family":"Chaabane","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9850-663X","authenticated-orcid":false,"given":"Messaoud","family":"Thameri","sequence":"additional","affiliation":[]}],"member":"250","published-online":{"date-parts":[[2020,9,16]]},"reference":[{"key":"R1","first-page":"93","volume":"5","author":"Amehraye","year":"2008","journal-title":"Int. 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