An Acoustic Analysis on Pronunciation of the Sundanese Letters ee, e, and eu
Juju Julaeha(1), Jasmine Khairina(1), Syifa Nailufar Rahman(1), Galih Restu Fardian Suwandi(2)

(1) Master of Physics Teaching Study Program, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia
(2) Nuclear Physics and Biophysics Research Group, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia

Abstract

The fundamental frequency (pitch or F0) is the lowest frequency in a sound signal while the formant frequency is basically the resonant frequency that occurs in the vocal track. Both are acoustic parameters that are very essential to identify sound signals. The pitch and formant are extracted from the subject which consisted of 16-17 years old Sundanese 20 males and 20 females. Praat software is operated to extract pitch and the first to fourth formant (F1-F4) on each sound signal of the letters ee, e, and eu. The results of the analysis showed that each vowel ee, e, and eu in males had a smaller pitch and formant than in females, with gradient differences ee, e and eu was 48.22, 157.49, and 136.27. Regarding the significant level Two Tailed T-Test statistic calculation, the majority of formant frequency comparisons of 2 vocals (ee and e, e and eu, ee and eu) are significantly distinguished. The study also showed that several vocals had an undistinguished formant frequency at F3. It can be concluded that the pronunciation of ee, e, and eu between males and females can be identified through the fundamental and formant frequency.

Keywords: Fundamental Frequency, Formant Frequency, Sundanese, Vowel ee, e and eu , Speech Processing

Topic: PHYSICAL SCIENCES