Native Vowel Merger Effects on English Vowel Neutralization
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초록
Korean front vowels /ɛ/ and /æ/ have been merged in terms of F1 and F2 in young speakers’ speech. Regarding this recent phonetic merger, this study investigates production and perception of English vowel categories by native Korean speakers. The production and the perception experiments were conducted to examine the effects of native phonetic changes and the linguistic experience on the language competence in English. The production experiment reported that the amount of linguistic experience significantly affects the native-like articulations of English /ɛ/ and /æ/ in relation to the Korean /ɛ/-/æ/ merger. The inexperienced group failed to articulatorily distinguish English /ɛ/ and /æ/. In perception, the analysis showed a significant difference in perceptual accuracy for the experienced and the inexperienced group. The least successful perception was found in English /æ/ by the inexperienced group possibly due to the [low] feature-contrast in English front vowels. Therefore, this study found a significant effect of native phonetic merger on the L2 performance, which can differ depending on the amount of L2 experience.
Abstract
Korean front vowels /ɛ/ and /æ/ have been merged in terms of F1 and F2 in young speakers’ speech. Regarding this recent phonetic merger, this study investigates production and perception of English vowel categories by native Korean speakers. The production and the perception experiments were conducted to examine the effects of native phonetic changes and the linguistic experience on the language competence in English. The production experiment reported that the amount of linguistic experience significantly affects the native-like articulations of English /ɛ/ and /æ/ in relation to the Korean /ɛ/-/æ/ merger. The inexperienced group failed to articulatorily distinguish English /ɛ/ and /æ/. In perception, the analysis showed a significant difference in perceptual accuracy for the experienced and the inexperienced group. The least successful perception was found in English /æ/ by the inexperienced group possibly due to the [low] feature-contrast in English front vowels. Therefore, this study found a significant effect of native phonetic merger on the L2 performance, which can differ depending on the amount of L2 experience.
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