한국인 영어 학습자 영어 발화의 모음 공간과 길이 구조
Vowel Space and Durational Pattern in Non-native English Speech
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초록
English and Korean differ in the vowel inventory size and the rhythmic pattern. English is a stress-timed language and Korean is a syllable-timed language. The cross-linguistic differences may explain the acoustic-phonetic characteristics of English speech by Korean learners of English. This study investigates the vowel space and durational pattern of non-native English speech produced by Korean learners of English. The vowel formant values and the phone durations were measured. The experiment results show that L1 transfer explains the non-native vowel system and durational pattern. The acoustic realization of the English target vowels is affected by Korean vowel system and shows the distribution overlap between vowels in vowel space. The duration data show that the durational change of the vowel intervals are significantly different between the two speaker groups. The result indicates that Korean learners of English have difficulty in controlling the vowel durations for prosodic boundary effect.
Abstract
English and Korean differ in the vowel inventory size and the rhythmic pattern. English is a stress-timed language and Korean is a syllable-timed language. The cross-linguistic differences may explain the acoustic-phonetic characteristics of English speech by Korean learners of English. This study investigates the vowel space and durational pattern of non-native English speech produced by Korean learners of English. The vowel formant values and the phone durations were measured. The experiment results show that L1 transfer explains the non-native vowel system and durational pattern. The acoustic realization of the English target vowels is affected by Korean vowel system and shows the distribution overlap between vowels in vowel space. The duration data show that the durational change of the vowel intervals are significantly different between the two speaker groups. The result indicates that Korean learners of English have difficulty in controlling the vowel durations for prosodic boundary effect.
참고문헌 (11)
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