15th International Congress of Phonetic Sciences (ICPhS-15)
The aims of this research were: (a) normative, to establish tentative
normative data on the mean fundamental frequency (F0) for Portuguese
speakers; (b) comparative, to investigate whether statistically significant
differences exist between two groups of different voice conditions
on the mean F0, and (c) predictive, to test for the variables that
best predict the mean F0 variance. Electrolaryngographic (ELG) data
was obtained from 109 subjects (52 dysphonics and 57 controls) during
the production of sustained vowels, oral reading and conversation.
Results show that the normative data proved to be a valuable reference. Also, within the limitations of the study, overall the dysphonic exhibited lower F0 than controls for all speaking conditions, although this contrast was not statistically significant. Additionally, between 61 and 73% of the mean F0 variance is explained by a combination of four or five variables for all speech tasks.
Bibliographic reference. Guimarães, Isabel / Abberton, Evelyn (2003): "An electrolaryngographic study of dysphonic Portuguese speakers", In ICPhS-15, 2185-2188.