Acoustic correlates of pathologic voice types.
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.
Wolfe
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V
Speech and Hearing Clinic, Auburn University, Montgomery, AL 36193-0408.
Cornell
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R
Palmer
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C
D016002:Discriminant Analysis; D006801:Humans; D009622:Noise; D010700:Phonetics; D013018:Sound Spectrography; D013061:Speech Acoustics; D013067:Speech Perception; D014832:Voice Disorders / Q000145:classification* / Q000175:diagnosis / Q000503:physiopathology