Abstract Name : SintaKarwinda Student No : 1106102020064 Study Program : An Acoustic Analysis of Jamee Vowels Produced by Speakers in Samadua Keywords: Jamee vowel, Monophthong, Samadua dialect, Acoustic analysis This study described the characteristic of Jamee vowels especially monophthongs produced by speakers in South Aceh, who speak Samadua dialect through acoustic analysis. The previous study of Jamee vowel have been conducted by Yusuf et.al (1998) and Abdullah et. al (1991), but, in this research the researcher used acoustic analysis to finding qualities of F1 and F2 of the vowels from. The researcher chose ten female in Samadua district. For recording, there are seven words for the seven vowels under study each participant uttered the word using carrier sentence with three times repeatation of each word. The target words are within a controlled phonetic environment of the monophthong which is CVC, which C as stop consonants and V the target vowel. A total of 210 token were collected and analyzed using Praat software version 6.0.19 (Boersma & Weenink, 2016). The vowel are measured at the midpoint of the vowel that were automatically tracked by Linear Predictive Coding (LPC), overlaid on digital spectrograms. Then the result are input and calculate into excel and converted Hertz to Bark. This research found that vowel /i/ F1=463Hz and F2=2478Hz is the as front high vowel. While, vowel of /e/ F1=553Hz, F2=2493Hz and /ɛ/ F1=648Hz F2=2449Hz is the mid high vowels. Furthermore, the vowel /a/ appeared as mid low vowel with F1=887Hz and F2=1890Hz. Moreover, vowel /o/ is the back high vowel F1=530Hz and F2=1412Hz, the vowel of /u/ appeared as the back mid vowel F1=664Hz and F2=1165Hz, and /ↄ/ as back low vowel with F1=940Hz and F2=1330Hz. This research has approximately provided the measurements for the Jamee vowels.