Movement of Formants of Sound a in Lithuanian Language

Abstract

More frequently used words with different sound a surrounding were selected for investigation. Praat program was used for words annotation into phonemes. the sound a sections were annotated by program Praat. The values of formants also were calculated by Praat program. Plot of formants frequency distribution shows a big spread of histogram. We thought that wide distribution is because of coarticulation. Dividing to groups by surrounding phonemes didn’t revealed reasonable results. Also approximation formants by other sound parameters as duration, position from beginning, intensity didn’t showed reasonable results. The best approximation was obtained, when to input vector were included polynomial coefficients of signal’s intensity regression by reduced time. Ill. 11, bibl. 5 (in English, summaries in English, Russian, Lithuanian).