Dynamic Vocal Analysis of Vocally Healthy Young Adults: Exploratory Study

Objective: To obtain the values of the habitual, high, low, and GLIDE frequencies and the habitual, soft, and high intensities of the sustained vowel “é” of vocally healthy young adults. Method: Cross-sectional study, approved by CEP number 4,362,714. Fifty-three adults without vocal complaints participated, 30 women and 23 men, aged 18 – 43 years. Participants were asked to phonate the sustained vowel “é” in six tasks: 1. usual frequency and intensity, 2. high frequency, 3. low frequency, 4. ascending and descending GLIDE, 5. low intensity and 6. high intensity. The sample was recorded directly on the computer and monitored using the PRAAT program. Frequency (Hz) and intensity values were obtained using the same program and decibel meter (NPS dB), respectively. Results: The mean values of the frequency and intensity obtained in males were: 119.26 Hz for habitual frequency, 355.69 Hz for high, 115.77 Hz for low, and the minimum value of 136,44 Hz and maximum of 311,99 Hz in GLIDE. The intensity values were 72.60 dB habitual, 83.13 dB high intensity, and 60 dB soft intensity, respectively. In females, the mean values of the frequency and intensity were 211.49 Hz for the habitual frequency, 420.97 Hz for high, 189.92 Hz for low, and finally the minimum value was 158.55 Hz and the maximum 348.22 Hz in GLIDE. The intensity values were 69.63 dB habitual, 76.79 dB high, and 61.98 dB soft, respectively. Conclusion: Values of frequency and intensity measurements from Dynamic Vocal Analysis were obtained from Brazilian vocally healthy women and men.