PURPOSE: to determine the fundamental frequency (Fo) for the voice of 50 boys and 50 girls born and living in Belo Horizonte, whose ages range from 6 to 8 years. METHODS: both genders were chosen from Belo Horizonte city. The process of voice recording was done by using digital sustained vowel [ε] within proper tone and intensity, lasting three seconds, in a silent surrounding. We used Voice Analysis Voxmetria® software, best indicated to extract fundamental frequency (F0), main objective of this research. RESULTS: the findings showed the average of fundamental frequency being equal to 249.71 Hz, a meaningful decrease in Fo values as the age increases in both genders, and greater differences in F0 between genders. CONCLUSION: the average fundamental frequency of children's voice between 6 to 8-year-old is 249.71 Hz.
Child; Larynx; Voice Quality; Speech Acoustics
