The aim of the study is to analyse aerodynamic and acoustical changes in adult and geriatrics and provide age and gender comparison data. A total of 70 adult subjects and 67 geriatric subject participated. The study carried out in two phases ( aerodynamic analysis and acoustic analysis). The participants instructed and given demonstration before recording the voice sample of vowels /a/ /i/ /u/. PRAAT software ( version 6.1) was used to analyse the voice sample. Result provide data of MPT, s/z ratio, pitch, jitter, shimmer, HNR of adult and geriatrics, male and female and indicates high significance difference with acoustical parameters and no significant and no significant difference with aerodynamic analysis between groups comparison. The analysis of this variable allow us to determine value that can be used as reference for management of vocal disorders.
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2022: 6.012
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