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KMID : 1022420190110040035
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Phonetics and Speech Sciences
2019 Volume.11 No. 4 p.35 ~ p.43
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A study of L1 phonetic drift in the voice onset times of Korean learners of English with long L2 exposure
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Kim Mi-Ryoung
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Abstract
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This study examines the voice onset times (VOTs) of Korean stops produced by Korean learners of English with high language proficiency and long L2 exposure (i.e., Korean-English bilinguals) to assess whether the VOTs of their lax and aspirated stops are merging and, if so, which types of stops are being changed. Thirteen Korean speakers (six female and seven male) who had studied in the USA for more than three to ten years participated. The results show that the speakers in this study with long L2 exposure are participating in the VOT merger, in which VOTs for aspirated stops are reduced while those for lax stops are increased. In other words, change in VOT affects not only aspirated stops but also lax stops. The results indicate that L1 phonetic drift may not be primarily affected by the amount of L2 exposure, and language contact may not be the primary factor triggering a sound change in the Korean stop system. Further study is necessary focusing on the phonetic shift of the “lax” category because it may play a pivotal role in a tonogenetic-like sound change in present-day Korean.
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KEYWORD
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phonetic drift, sound change, tonogenesis, Korean stops, VOT merger, Korean-English bilinguals, VOT
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