台湾語における鼻音－口音の対立と鼻音化の度合い

概要

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Recent phonetic and phonological studies have shown that the degree of coarticulation is constrained by the contrast in the inventory. This study investigates whether the contrastive difference extends its effect to the acoustic degree of phonemic/phonological nasalization. Taiwanese has both nasal and oral vowels. In this research, we compared the degree of nasalization between CV and NV: The nasality is contrastive in the former and not in the latter. The vowel in NV syllables is always nasalized in Taiwanese. If the degree of nasalization is affected by the contextual difference in nasal contrast, the nasality of CV is expected to be greater than in NV. The results of the study show that the nasality was greater in a contrastive environment than in a non-contrastive environment. Consequently, the results of this study suggest that output contrast has an impact on the acoustic effects of phonology.
2009-10-20