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KMID : 1022420170090030017
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Phonetics and Speech Sciences
2017 Volume.9 No. 3 p.17 ~ p.23
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Growth curve modeling of nucleus F0 on Korean accentual phrase
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Yoon Tae-Jin
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Abstract
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The present study investigates the effect of Accentual Phrase on F0 using a subset of large-scale corpus of Seoul Korean. Four syllable words which were neither preceded nor followed by silent pauses were presumed to be canonical exemplars of Accentual Phrases in Korean. These four syllable words were extracted from female speakers' speech samples. Growth curve analyses, combination of regression and polynomial curve fitting, were applied to the four syllable words. Four syllable words were divided into four groups depending on the categorical status of the initial segment: voiceless obstruents, voiced obstruents, sonorants, and vowels. Results of growth curve analyses indicate that initial segment types have an effect on the F0 (in semitone) in the nucleus of the initial syllable, and the cubic polynomial term revealed that some of the medial low tones in the 4 syllable words may be guided by the principle of contrast maximization, while others may be governed by the principle of ease of articulation.
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KEYWORD
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Korean , Growth Curve Analysis , Accentual Phrase , Initial segment , F0 , Contrast maximization , Corpus phonetics
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