KhoramAbadi Luri Monophthongs: An Acoustic Study

Abstract

This study investigated the acoustic parameters of the fundamental frequency, first and second formant frequencies, duration and intensity in KhoramAbadi Luri vowels. 10 participants (5 male, 5 female) produced 1620 tokens, including /ɑ،y،ø،o،u،ə،a،e،ʏ،ɪ،i/ vowels. The result showed that /a/ has the lowest fundamental frequency; /e/ and /ʏ/ have the highest amount of this parameter in male and female speakers, respectively. /a/ and /i/ are the open and close vowels in KhoramAbadi Luri. /i/ and /o/ are the front and back vowels. /ø/ and /ɑ/ have the highest vowel duration amongst other vowels; /ʏ/ and /ə/ have the lowest vowel duration in male and female speakers, respectively. /e/ has the highest intensity in both male and female speakers; /a/ and /u/ have the lowest intensity in male and female speakers, respectively. Generally, female speakers have higher fundamental frequency, first and second formant frequencies and duration, but intensity is higher in male speakers.

Keywords

• acoustic phonetics
• khoramabadi luri
• monophthongs
• vowel
• formant