Abstract

In this study, a program was developed that allows one to listen to sounds existing in computer, with the algorithms based on signal processing logic which is available via Fourier Transform in MATLAB program. The heard sound is recorded when it is repeated by human voice, and its frequency is compared to the frequencies of existing sounds in the computer to obtain measurement results. The first version of the program to be developed used piano notes in the range of B3-D5. The program generates measurement results in graphic form, corresponding to notes sung. In addition, the frequency results are shown in the information display. One of the main objectives of the study is to develop a measurement system that could be applied in music special aptitude tests. In music aptitude tests, in the questions about sounds repeating, the jury’s perception is altered by factors such as fatigue, and candidates’ measurement results are affected by this problem. This program seeks to eliminate this negative effect in the measurements results of the aptitude test. The first version of the program developed in this study was tested on 10 people. The Pearson correlation analysis was performed with the aim of examining the relationship between achievement levels of students in one voice field and fixed frequency values. The result of this analysis was a meaningful, positive and high-level relationship between fixed values of 16 notes frequencies in the range of B3-D5 and singing values of the students regarding these 16 notes.

Key words: Music education, music aptitude test, MATLAB, Fourier transform, aptitude test program.