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KMID : 0917520080150040043
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Journal of Speech Sciences
2008 Volume.15 No. 4 p.43 ~ p.60
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Gradient Reduction of C₁in /pk/ Sequences
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Son Min-Jung
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Abstract
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Instrumental studies (e.g., aerodynamic, EPG, and EMMA) have shown that the first of two stops in sequence can be articulatorily reduced in time and space sometimes; either gradient or categorical. The current EMMA study aims to examine possible factors_linguistic (e.g., speech rate, word boundary, and prosodic boundary) and paralinguistic (e.g., natural context and repetition)_to induce gradient reduction of C₁in /pk/ cluster sequences. EMMA data are collected from five Seoul-Korean speakers. The results show that gradient reduction of lip aperture seldom occurs, being quite restricted both in speaker frequency and in token frequency. The results also suggest that the place assimilation is not a lexical process, implying that speakers have not fully developed this process to be phonologized in the abstract level.
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KEYWORD
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place assimilation, gradient reduction, categorical reduction, phonetic variability, Korean
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