Etude de la structure formantique des voyelles produites par des locuteurs
Fabrice Hirsch, Véronique Ferbach-Hecker, Florence Fauvet, Béatrice Vaxelaire.

The aim of this study is to analyse the steady—state portion of the first two formants (F1) and (F2) in the production of [pVp] sequences, containing vowels [i, a, u] pronounced in two speech rates (normal and fast) by groups of untreated and treated stutterers, and nonstutterer controls. Comparing data between treated or untreated stutterers and controls, a reduction of vowel space is observed for stutterers in a normal speaking rate. When speech rate increases, no reduction of vowel space is noticeable for untreated stutterers, contrary to treated stutterers and controls.