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Speech intelligibility and acoustic characteristics of Mandarin speakers with cerebral palsy
J. Acoust. Soc. Am. Volume 107, Issue 5, pp. 2903-2903 (2000); (1 page)
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Add to FacebookReduced speech intelligibility is often associated with individuals having cerebral palsy. The purpose of the present study was to investigate the speech intelligibility and acoustic characteristics of three subtypes of cerebral palsy (athetoid, spastic, mixed) among adult speakers of Mandarin. A Mandarin word intelligibility test was constructed using phonetic contrasts known from previous studies to be especially sensitive to the dysarthria associated with cerebral palsy. These included tonal contrasts, whose relationship to speech intelligibility deficits in persons with cerebral palsy is not well understood. Acoustic measures consisted of formant frequencies, segment durations, and measures of tone. Preliminary results show that speech intelligibility of athetoid speakers is often worse than that of spastic speakers, and that there are also reliable acoustic differences between the groups. A multidimensional scaling analysis of the perceptual results and regression models of the relationship of the acoustic to the perceptual variables will also be reported. [Work supported by NIH DC00319.]
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