On-line version ISSN 1982-0216
MAGRI, Aline; CUKIER-BLAJ, Sabrina; KARMAN, Delmira de Fraga e and CAMARGO, Zuleica Antonia de. Perceptive and acoustic correlates of supraglottis adjustments in dysfonia. Rev. CEFAC [online]. 2007, vol.9, n.4, pp. 512-518. ISSN 1982-0216. http://dx.doi.org/10.1590/S1516-18462007000400012.
PURPOSE: to evaluate auditory perception (supraglottic adjustments) and acoustic (formants) of vocal quality in dysphonic individuals with glotic disorders, attended in a clinic a hospital in the city of São Paulo. METHODS: the studied was represented by voice samples taken form from 20 dysphonic people aged between 30 and 65 of the female gender (attended in a hospital in the city of Sao Paulo) and the auditory perception judgment of the vocal quality was represented by samples previously evaluated by active judges in clinic activity. The samples were explored as for the frequency of the first three formants (F1, F2 and F3). The values were considered as for their quality (compared to the data of auditory perception analysis) and their quantity (Qui-square test) RESULTS: the more frequent adjustments of vocal quality were low larynx, closed jaw, lip rounding, lowered tongue body, retracted tongue body, labiodentalization. Statistically meaningful differences were found for the frequency value of F1 for the syllables "cata" (864 Hz) and "gata" (814Hz), p=0 and F3 for the syllables "cata" (2598 Hz) and "gata"(2660 Hz), p=0.17 for the subjects of the group studied with relation to the values of reference for Portuguese-Brazilian language. CONCLUSION: the identified adjustments of vocal quality met correspondence with the reducing of values of F1 and F3 indicating trends for vocal treat adjustments.
Keywords : Voice Disorders; Auditory Perception; Speech Acoustics; Speech Production Measurement; Voice Quality.