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Abstract:
This paper describes the use of a real time MRI technique to
study the coordination of articulatory movements during the
production of vowels. The technique was also applied to study
articulatory compensations during bite block experiments (Demolin
et al. 1997). One of the main interest of this technique is to
allow a detailed spatial description of the main articulators
(lip protrusion and opening, jaw opening and retraction, dorsum
position, velum opening, larynx height and tongue root
advancement) during the production of a sequence of vowels. The
technique is also applicable to study the coarticulation of
consonants and vowels, but because it is still not possible to
obtain a satisfactory sound coordination and because the frame
interval is still a bit slow, this question will not be treated
in this paper. Measurement accuracy on real time images is
evaluated by comparison with similar measurements on static MR
images.
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