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KMID : 0917520050120010065
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Journal of Speech Sciences
2005 Volume.12 No. 1 p.65 ~ p.74
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Absolute and Proportional Undershoot Values as Indices of Coarticulation
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Oh Eun-Jin
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Abstract
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The aim of this paper is to suggest an index of coarticulation, proportional undershoot values, given the observation that absolute undershoot within a language tends to be proportional to target-locus difference. The target-locus proportionality predicts that a large difference between the consonant locus and the vowel target will result in a large amount of vowel undershoot, while a small difference a small amount of vowel undershoot. It turns out that the proportional undershoot is a potentially more appropriate way of comparing degree of undershoot across languages. However, even though the proportional undershoot measurement may provide a useful index comparing the overall coarticulation degree in a CV token for cross-linguistic data, it is concluded that it may potentially wrongly predict the cases of transfer or error as a progress in learning.
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KEYWORD
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index of coarticulation, absolute undershoot, proportional undershoot
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