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Immediate effects of voiced high-frequency oscillation in voice quality and acoustic measures in healthy and dysphonic individuals

Grant number: 18/15768-5
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2019
Effective date (End): December 31, 2019
Field of knowledge:Health Sciences - Speech Therapy
Principal Investigator:Kelly Cristina Alves Silverio
Grantee:Maria Paula Almeida Gobbo
Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


Objective: to analyze and to correlate the immediate effects of voiced high-frequency oscillation (VHFO) in acoustic measures and voice quality in healthy and dysphonic individuals. Methodology: 30 healthy and 30 dysphonic individuals of both gender aged between 18 to 45 years old will participate of this study. A voice database (vowel /a/ and counting) will be used to perform acoustic analysis (Cepstral Peak Prominence Smoothed, alpha ratio, and difference L1-L0) and perceptual analysis (general grade of voice, roughness, and breathness voice) using the analogic visual scale, by means of the vowel /a/ recording and number counting one to ten. The data will be analyzed statistically by parametric or non-parametric tests, in order to compare it before and after the application of the VHFO technique and correlate the acoustic parameters with the perceptual analysis.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DA SILVA ANTONETTI, ANGELICA EMYGDIO; DONALONSO SIQUEIRA, LARISSA THAIS; DE ALMEIDA GOBBO, MARIA PAULA; BRASOLOTTO, ALCIONE GHEDINI; ALVES SILVERIO, KELLY CRISTINA. Relationship of Cepstral Peak Prominence-Smoothed and Long-Term Average Spectrum with Auditory-Perceptual Analysis. APPLIED SCIENCES-BASEL, v. 10, n. 23, . (18/15768-5)

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