The first eletrocnic Journal of Otolaryngology in the world
ISSN: 1809-9777

E-ISSN: 1809-4864

 
1652 

Year: 2013  Vol. 17   Num. Suppl. 1  - - (273º)
Section:
 
PHONATION IN A GLASS TUBE IMMERSED IN WATER IN WOMEN: VOCAL SPECTROGRAPHIC, VOCAL SOUND PRESSURE AND SELF-REPORTED FEELINGS
Author(s):
Joziane Padilha de Moraes Lima, Carla Aparecida Cielo, Fabrício Scapini
Abstract:

OBJECTIVE: To evaluate changes in spectrograms, sound pressure level (SPL), and self-reported sensations after phonation in a glass tube immersed in water (PGTIW) in normal women. METHODS: Of 24 women, aged 18 to 40 years, 12 were assigned to the study group (SG) and 12 to the control group (CG); we evaluated their phonation of the vowel /a:/ and assessed the (NPS) and self-reported vocal sensations, before and after PGTIW in the SG and after a period of silence in the CG. Wideband and narrowband spectrographic analysis was performed. Statistical significance was evaluated using the Wilcox on, Chi-square, and Spearman tests (P< 0.05 was considered significant). RESULTS: In the GE, increases in the intensity of the fourth formant, the definition of the first formant and of harmonics, the number of harmonics, the SPL value, and the sensation of a better voice were observed after PGTIW. There was a significant positive correlation between PGTIW and the sensation of a better voice, improved definition of the second and third formants, and smoothness of the tracing. CONCLUSION: PGTIW was associated with increased SPL, resonance, and vocal projection, as well as increased harmonic energy and decreased periodic signals; it improving the subjective sensations of vocal production.

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