Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

Gestural Overlap, Place of Articulation and Speech Rate - An X-Ray Investigation

Béatrice Vaxelaire (1,2), Rudolph Sock (1,2,3), Pascal Perrier (3)

(1) Institut de Phonétique de Strasbourg, (2) Laboratoire de Pyschobiologie du Comportement Moteur et des Sports, Université Marc Bloch, Strasbourg, France
(3) Institut de la Communication Parlée, INPG & Université Stendhal, Grenoble, France

This investigation deals with the production of consonant sequences in French, with particular focus on overlap of labial, apical, tongue-dorsum and velar gestures. X-ray and acoustic data are obtained for two speakers, at two speaking rates, normal-conversational and fast. Speech rate is varied in order to explore gestural overlapping possibilities, when places of articulation differ between plosives. Results show that: anticipatory coarticulation is not systematically predominant; anticipatory or perseverative coarticulation may or may not occur depending on similarity/dissimilarity in place of articulation between contiguous consonants; vowels are less resistant than consonants to velar coarticulation; speech rate facilitates gestural overlap. Findings are explained in terms of biomechanical and viable linguistic constraints.

Full Paper

Bibliographic reference.  Vaxelaire, Béatrice / Sock, Rudolph / Perrier, Pascal (2000): "Gestural overlap, place of articulation and speech rate - an x-ray investigation", In ICSLP-2000, vol.2, 166-169.