Affiliation:
1. Vocal Function Laboratory Dalhousie University Halifax, Nova Scotia, Canada
Abstract
The purpose of this study was to compare habitual (modal) and derived optimal pitch (fundamental frequency) values in 40 young adults. The individual habitual F
0
values of 20 male and 20 female nonsmokers with normal larynges, normal voices, and no history of laryngeal pathology or formal vocal training were obtained from high-quality recordings of spontaneous monologue, oral reading, and sustained phonation. Optimal fundamental frequency (F
0
) was derived from each individual's phonational range using the 25% Method (Fairbanks, 1960; Pronovost, 1942). Using correlative analyses, the predicted optimal F
0
values that were derived were compared to habitual F
0
values for the male and female speaker groups, and for specific vocal tasks used to identify habitual F
0
(i.e., spontaneous monologue vs. oral reading vs. sustained phonation). Results indicate that habitual F
0
was not consistent with derived optimal F
0
values using the 25% Method; rather, habitual F
0
in our normal adults occurred between 8% and 10% up the phonational range from basal F
0
. Clinical implications of these data and the related limitations associated with the concept of optimal pitch (F
0
) are discussed.
Publisher
American Speech Language Hearing Association
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