The Acoustics of Kermanshahi Kurdish Vowels

Due to the significance of vowels in the acoustics of languages, the present study is designed to investigate the simple and complex vowels in Kermanshahi Kurdish in terms of first and second formants (F1 and F2). Vowels in CVC and CV syllables of Kermanshahi Kurdish words are selected in word reading speech and the differences of formant frequency in open and closed syllables are investigated. In order to evaluate and determine the transgender formant frequency, 10 Kermanshahi Kurdish speakers (5 males and 5 females) are selected. Based on the results obtained from our analysis using Praat software, there are 8 simple vowels in Kermanshahi Kurdish including (a, e, o, ɑ, ı, u, i, and y) and 8 complex vowels (ɑe, ei, eo, ya, yɑ, ia, iɑ and ey).