Abstract

In this study, 3‐D tongue shapes reconstructed from MR images obtained during sustained production of the fricatives /s,ℱ,z,yog/ by four speakers are analyzed. Images were collected in the coronal, axial, and sagittal planes using a GE SIGNA 1.5 T machine with image slice thickness of 3 mm and no interscan spacing. Results show that the tongue body for /s/ and /z/ is significantly lowered behind the constriction with respect to the tip and back of the tongue; the tongue body has flat or slightly convex contours in the constriction region that become significantly concave behind the constriction. The degree of concavity is speaker dependent, and decreasing concavity is observed as the posterior pharyngeal wall is approached. For /ℱ/ and /yog/, the tongue body rises slightly along its midline before it starts sloping towards its posterior end; the tongue shape behind the constriction is convex (two subjects) or flat (two …

Date

1994

Authors

Shrikanth Narayanan, Abeer Alwan, Kate Haker

Journal

The Journal of the Acoustical Society of America

Volume

96

Issue

5_Supplement

Pages

3342-3342

Publisher

Acoustical Society of America