Ishchenko O. Vowels description in the Ukrainian modern literary language depending on speech rate (experimental phonetic research)

Research object – modern literary Ukrainian speech. Research subject – vowel acoustic features (duration, intensity, spectrum) and speaking rate. The study deals with a specific character of vowels in the Ukrainian on their acoustic parameters in different word positions. Frequency spectrum, duration and intensity for each vowel depending on (slow, medium, rapid) speaking rate are analyzed. Speaking rate as a supersegmental unit of speech was explored. The correlation between speaking rate and language and its transmitters was established. Nature, place and role of rate in phonetic system of Ukrainian were analyzed. Taking into consideration the experiments Ukrainian speech rate in slow, medium and rapid was typified. Acoustic parameters of Ukrainian vowels in ideal pronunciation and in coherent speech were studied. Partial influence of speaking rate on acoustic descriptions of vocal system was fixed. A conclusion about the formal and structural sound acoustic features was done. Research methods – experimental phonetic method, comparative method, mathematical method. Research results can be used in higher education, for preparation to educational courses and seminars in experimental phonetics, for investigation of different languages phonetic systems typology. Achieving dissertation can be applied in the automatic synthesis of Ukrainian speech, transmissions of Ukrainian speech signal on communication cannels, in speech examination, criminality practice, psychology etc. Considerable experimental material (spectrograms, intonograms, oscilograms), methods of its treatment can profit for phonetic studies in future.