Abstract
The present study attempted to investigate the relationship between judged speech proficiency of cerebral palsied speakers and the following quantitative speech parameters: 1) the number of articulatory errors; 2) the intelligibility of the speech of the cerebral palsied; 3) mean vocal fundamental frequency; 4) variation of vocal fundamental frequency; 5) mean speech-sound pressure level; 6) variation of speech-sound pressure level; 7) word-per-minute speech rate. Secondarily, the study investigated the differences in the speech of the spastic and athetoid populations in terms of the parameters listed above.
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