Behavior of the vocal formates according to the jaw opening and the kind
Comportamiento de los formantes vocales respecto a la apertura mandibular y el género
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This study determined the effect that has the jaw opening and the condition of kind on the vocal formants 1 and 2 in maintained fonation, based on a not probabilistic sample captive on the “Institución Universitaria Iberoamericana”, conformed by a group of 31 subjects, 15 women and 16 adult men, with normal voice and without vocal training, in a rank of age between 18 and 45 years. The samples were processed by the VISI PITCH III 3900, program Sounds match. Through statistical studies, an analysis was carried out a one way varianza, as well as post hoc comparisons, finding that exist significant differences upon varying the magnitude of jaw opening (MAM) in the F1, but not in the F2. Also they were shown significant differences in them according to the condition of kind, presented more variations in women that in men, upon using greater jaw openings. These finds supports the acoustic effect that have on the formants, the pedagogical and therapeutic techniques that involve opening jaw, and they suggest considering the kind in their implementation.
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