Abstract
Fundamental frequency (f0) characteristics of deaf speech appears to differ from normal, although the extent and nature of these differences is unclear. Fundamental frequency characteristics are dependent upon the way the speech sample is elicited (spontaneous or read). This study examined the f0 characteristics of 25 deaf and 10 normal-hearing adults during various speaking tasks, including spontaneous speech, oral reading, and declarative sentence and yes/no question production. Comprehensive descriptions of f0 were obtained by means of a computer based f0 measuring and analyzing system developed at Gallaudet College. These descriptions included: (1)f0 distribution, (2) measures of central tendency, (3) distribution variance, (4) estimates of f0 range, and (5) cycle-to-cycle f0 change. Results show that the f0 characteristics of the hearing-impaired subjects differed from normal, and that the hearing-impaired subjects tend to alter f0 characteristics among the different speaking tasks to a lesser extent than normal-hearing subjects. Implications of findings will be discussed. [Research supported by the National Institute for Handicapped Research and the Gallaudet Research Institute.]
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