Abstract

Traditionally, descent of F3 below 2000 Hz at the midpoint has been considered an acoustic correlate for perceived rhoticity. Recent investigations by Heselwood of the auditory integration hypothesis related to rhotics and by Fox and colleagues of “center of gravity” (COG) for stops, diphthongs, and vowels suggested an application to rhotic perception. A resynthesized continuum containing manipulated formant amplitudes to create a high amplitude frequency band descending from above 2000 Hz to below 2000 Hz over 8 steps will be presented to graduate speech pathology students who will judge goodness of rhoticity.

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