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Journal of Speech and Hearing Research Vol.34 509-516 June 1991.
© American Speech-Language-Hearing Association
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Acoustic Correlates of Pathologic Voice Types

Virginia Wolfe 1
Richard Cornell 1

Chester Palmer 1
1 Auburn University at Montgomery Montgomery, AL

Listeners classified 49 samples of vowels /a/ and /i/ on the basis of four voice types: hoarse, breathy, strained, and normal. The vowels were analyzed acoustically for mean harmonic/noise differences in four spectral regions, average fundamental frequency, natural logarithm of fundamental frequency, and jitter. Discriminant analysis showed that classifications of voice type were made with 80% accuracy using three acoustic parameters: (a) mean harmonic/noise difference factor (1–3.5 kHz), (b) natural log of fundamental frequency, and (c) vowel type. The significance of these particular acoustic parameters for the perception and classification of voice types is discussed.

KEY WORDS: acoustic correlates, harmonic/noise difference factors, voice types

Submitted on November 30, 1987
Accepted on August 27, 1990


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