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KMID : 0917520080150030031
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Journal of Speech Sciences
2008 Volume.15 No. 3 p.31 ~ p.38
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A Study of the Effects of Vowels on the Pronunciation of English Sibilants
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Koo Hee-San
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Abstract
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The aim of this study was to find how English vowels affect the pronunciation of English sibilants /?, ?, z/ by Korean learners of English. Fifteen nonsense syllables composed by five vowels /a, e, i, o, u/ were pronounced six times by twelve Korean learners of English. Test scores were measured from the scoreboard made by a speech training software program, which was designed for English pronunciation practice and improvement. Results show that 1) the subjects had the lowest scores in /a_a/ position, and 2) subjects had lower scores in the /i_i/ position than in /e_e/, /o_o/ and /u_u/ positions when they pronounced /?/, /?/, and /z/ in their respective inter-vocalic position. This study found that for the group studied Korean learners of English have more difficulty in pronouncing sibilants in /a_a/ and /i_i/ positions than in the other positions.
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KEYWORD
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English vowel, sibilant, Koreans’ English pronunciation
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