Title: Spectre � Multir�solution pour le Traitement et l'Analyse de la Parole: Etude Acoustique du Dialecte Tunisien (Omn.Pres.Franc.) (French Edition)
Publisher: Presses Acad�miques Francophones
Publication Date: 2014
Language: French
ISBN 10: 3838140885
ISBN 13: 9783838140889
Binding: Soft cover
Condition: New

About this title

Synopsis

Ce livre traite du probl�me de l'analyse de la parole et vise trois objectifs: (i)am�liorer le spectrogramme classique en spectrogramme � multir�solution (MRS); (ii)r�aliser une analyse fine du signal vocal bas�e sur une pr�-classification de trames bas�e sur deux classifieurs; (iii)r�aliser une �tude acoustique des voyelles orales du dialecte tunisien (DT) en utilisant notre syst�me d'extraction des formants bas�e sur la transform�e de Radon (TR). Nous avons fournit notre syst�me d'Analyse Visuelle de la Parole (VASP) pour la r�alisation de la partie applicative. La validation de nos m�thodes a �t� pr�sent�e sur 4 niveaux: (i)pr�senter et tester les performances de notre approche pour les 2 classifieurs sur 3 types de corpus. (ii)r�aliser une �tude acoustique sur 6 voyelles orales du DT et du fran�ais. (iii)comparer entre le LPC et la TR pour �tudier le regroupement des formants F1 et F2 et sa concordance avec le triangle de Hellwag. (iv)�tudier l'apport du MRS par rapport aux techniques existantes. Notre approche MRS fournit un meilleur r�sultat pour nos 2 classifieurs. Ce qui valide sa pertinence et sa pr�cision lors de l'affichage des zones d'�nergies des formants sur le MRS.

About the Author

Docteur en informatique, sp�cialis�e en Analyse et Traitement de la parole en langue Arabe et en Dialecte Tunisien au d�partement des Sciences de l'Informatique � la Facult� des Sciences de Tunis. Assistante d'informatique � l'Institut Pr�paratoire des Etudes d'Ing�nieurs de Bizerte (Tunisie).

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