| 초록 |
Jeon, Yoon-Shil. (2015). Vowel space differences in native and non-native focused words. The Linguistic Association of Korea Journal 23(4), 169-187. Vowel spaces of neutral and focused words in native English speech and those in non-native Korean learners' speech were compared to show the characteristics of acoustic realization of the vowel space expansion in focused words. In focused words produced by native English speakers, high front vowel /i/and back vowels /u, ʊ, ɑ/ show F2 shift. Specifically, /i/ is higher and /u, ʊ, ɑ/ are lower in F2 for focused words than for neutral words. High and mid-high vowels /i, ɪ, ʊ/ show higher F1. The results indicate that vowel spaces in focused words expand by fronting, retraction and lowering, not by raising of tongue body. In focused words of Korean learners of English, /æ, ɑ, ʊ/ have higher F1 and low front /æ/ shows lower F2. The vowel space expansion arose mainly due to retraction and lowering of tongue body. Relative to native English speakers, Korean learners of English generally realize higher F1 values of low vowels and lower F2 values of back vowels in both neutral and focused words, which means that back vowels show more backness and low vowels are much lower. |
