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KMID : 0917520020090010077
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Journal of Speech Sciences
2002 Volume.9 No. 1 p.77 ~ p.88
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An Acoustical Study of English Word Stress Produced by Americans and Koreans
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Yang Byung-Gon
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Abstract
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Acoustical correlates of stress can be classified asduration, intensity and fundamental frequency. This study examined the acoustical differences in the first two syllables of stressed english words produced by ten American and Korean speakers. The Korean subjects scored very high on the TOEFL. They read at a normal speed a fable from which theacoustical parameters of eight words were analyzed. In order to make the data comparison meaningful, each paramenter was collected at 100 dynamic time points proportional to the total duration of the two syllables. Then the ratio of the parameter sum of the firstrime to that of the second rime was calculated to determine the relative prominence of the syllables. Resultsshowed that the durations of the first two syllables were almost comparable between the Americans and Koreans. However, statistically significant differences showed up in the diphthong pronunciatious and in the words with the second syllable stressed. Also, remarkably high r-squared values were found between pairs of thethree acoustical parameters, which suggests that either one or a combination of two or more parameters mayaccount for the prominence of a syllable within a word.
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KEYWORD
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