Acoustic measures of dysphonic severity across and within voice types

Author(s): Fitch, J., Martin, D.

Journal/Book: Folia Phoniatr Logopaed. 1997; 49: Allschwilerstrasse 10, CH-4009 Basel, Switzerland. Karger. 292-299.

Abstract: The purpose of the study was to explore an interaction between pathologic voice type and the acoustic prediction of dysphonic severity. One hundred and two phonatory samples, representing a wide range of laryngeal conditons, were categorized by listeners into three voice types: breathy, rough, and hoarse. A second group of trained listeners rated the severity of the samples on a 7-point scale. Twenty-five frequency-and time-domain measures were used to predict perceptual severity. Multiple regression analyses showed that the most useful measure for the prediction of severity across voice types was noise-to-harmonic ratio (NHR). The severity of individual voice types was predicted with differential results on the basis of both short- and long-term measures of perturbation.

Note: Article Wolfe V, Auburn Univ, Speech & Hearing Clin, 7300 Univ Dr, Montgomery,AL 36117 USA

Keyword(s): acoustic measures; dysphonic severity; voice type; noise-to-harmonic ratio; VOCAL QUALITY; PREDICTION; NOISE; HOARSENESS

Zurück | Weiter