The Survey of Acoustic Evidences and the Degree of Parsability in Persian Prefix’s Derived Words in Speech Processing

Abstract

The acoustic information can be evidence for many considered matters in other linguistics areas, especially in spoken morphology and speech processing. The present study investigates the Persian derivational words of prefixes and the degree of parsability in processing, understanding, and receiving the meaning of derived words by some acoustic evidence. For this reason, the derived words of the prefixes «nɑ», «ham», and «farɑ» and their bases were extracted from the Institute of Humanities. We chose two parsable and non-parsable derived words of each derivational prefix and put them in carrier sentences. Then, We investigate the acoustic features such as duration, pitch, formants, intensity, duration of maximum intensity, and the clarity of transition point The results show that the relative duration of parsable words is more than non-parsable words. The degree of co-articulation in pitch frequency, first, second, and third formant frequency of non-parsable words in transition points of affix and base and statically position of affix is more than parsable words because of incorporation and without potential pauses. In non-parsable words, the relative maximum duration of intensity is more with the smooth trend. So, the clarity of formants in parsable words is more than in non-parsable words at the transition points. © 2022, Tarbiat Modares University. All rights reserved.