MRI techniques have been used to obtain mid-sagittal cuts of vowels uttered by several French speakers. These data have been compared with data coming from X-ray studies made by Bothorel et al. . Area functions and derived formants have been evaluated by a comparison with formant frequencies extracted from vowels in a session different from the MRI recording sessions.
Bibliographic reference. Demolin, Didier / Hombert, Jean-Marie / Lecuit, Véronique / Segebarth, Christoph / Soquet, Alain (1995): "An MRI study of French vowels", In EUROSPEECH-1995, 2235-2238.