Southeast Europe Journal of Soft Computing ISSN 2233 – 1859 Available online: http://scjournal.ius.edu.ba Vol 9, No. 2, September 2020, pp. 1-5 1 Bosnian Vowels Analysis Using Formant Frequencies 1* Melisa Kunovac and 2 Ali Abd Almisreb 1,2 Faculty of Engineering and Natural Sciences, International University of Sarajevo International University of Sarajevo, Hrasnicka Cesta 15, Ilidža 71210 Sarajevo, Bosnia and Herzegovina *Corresponding Author: melisa.kunovac1@gmail.com Article Info Article history: Article received on 1 February 2020 Received in revised form 20 February 2020 Keywords: Bosnian language; Vowel recognition; Vowels; PRAAT; Formant frequencies; Formants ABSTRACT: One way for analysis of vowels in any language is an analysis using formant frequency analysis. The Bosnian language has five vowels and those are a, e, i, o, u. The research was conducted in such a way that words with a minimum of two identical vowels per word were selected for each vowel. Several samples were then collected that recorded each of the words, and then those words were analyzed in PRAAT software. The total number of samples was 1050, twenty-one subjects were included, twelve females and nine males. Each of them recorded ten words for each of five vowels, therefore fifty words by each subject. The outcomes are based on related articles and dissertations, recognition, and analysis of vowels. Recognition was based on the statement, reading the literature, that each person has a narrow band of F4 formant values that should identify the person. And the analysis part was done by comparing formant values. Also, the work was based on gender differences for this analysis, as well as some other small observations, for example, the difference between native and other speakers of the Bosnian language. 1. INTRODUCTION Formant frequency analysis, in some simple way, can be explained as a comparison between formant values of the analyzed word. Formant analysis also can be used for testing any vocal, not just vowels. But the best result was shown by analyzing vowels. The formant values are extracted and then, based on their value, compared to achieve some new perception or conclusion on how they behave pronounced by different people [1][2]. From a recognition situated view formants are striking parts in the range that can serve to recognize, for instance, unique vowel phonemes from one another. In acoustics, formants are characterized as tops in the range envelope of a discourse sound. Furthermore, a formant is the centralization of acoustic energy around a specific recurrence in the discourse wave. There are a few formants, each at an alternate recurrence, around one in each 1000Hz band. Or then again, to put it in another way, formants happen at generally 1000Hz stretches. Each formant relates to reverberation in the vocal parcel. With regards to the number of formants, it very well may be said that there are five of them. (F1, F2, F3, F4, F5) [3]. Each one of them is expressed in Hz. Normally for examination, just an initial three are utilized, however in this paper likewise F4 is utilized and it is a formant that ought to distinguish the speaker. formats frequencies have been used widely to various vowels from different languages such as [4]–[6]. For this paper, the Bosnian language was used. Bosnian language, in the opinion of people whose native language is not Bosnian, is very hard to understand and learn. The language is, by pronunciation, can be said to be similar to the languages of the countries in the region,