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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
오류제보하기
Previous studies on the effects of speaking rate on voice onset time (VOT) of stops in English, French, Icelandic, and Thai indicate that speaking rate asymmetrically affects VOT values. That is, pre-voiced and long-lag stops vary due to the rate factor more than short-lag stops do. One suggested explanation for this asymmetry is that it is due to the necessity of maintaining phonetic contrasts among the stop categories. Since pre-voiced and long-lag stops represent the ends of the VOT scale, they encompass broad swathes of that range and consequently allow for large variations. On the other hand, the VOT variations of short-lag stops may result in overlap with the VOTs of long-lag stops. This study aimed to explore the effects of speaking rate on the VOTs of Korean stops and see whether Korean fortis and lenis stops are limited in the degrees of variation as a function of rates due to the existence of stops with larger VOT values, lenis and aspirated stops respectively. Conversely, aspirated stops were expected to show more variation since there are no other categories with longer VOTs. Fortis, lenis, and aspirated stops in /CVn/ words (C = bilabial or velar stop, V = /i/ or /a/) were examined in isolation, and at normal and fast rates in a carrier sentence. Speaking rates were controlled by alternating words or sentences on a computer screen at intervals of two seconds for the isolation- and normal-rate conditions and one second for the fast-rate condition. This study found that while the VOTs of fortis stops did not change significantly, those of lenis and aspirated stops showed considerable changes as a function of speaking rates. Also, overlap between lenis and aspirated stops occurred considerably at all speaking rates. These phenomena were interpreted to relate to the fact that VOT contrasts between lenis and aspirated stops in Korean are currently being collapsed. Large variations of lenis stops as a function of rates seem to occur due to a weak motivation to limit the degree of variations for the purpose of maintaining phonetic contrasts. The significant overlap between lenis and aspirated stops at all rates was interpreted to occur because the VOT merger between the two categories became considerably fixed. Also the percentage of correctly-classified VOTs by optimal-boundary values between lenis and aspirated stops turned out to be lower than in previously-studied languages. This was interpreted to be further evidence that VOTs are losing their role in contrasting the two stop categories in Korean.
목차
ABSTRACT
1. 서론
2. 실험 방법
3. 실험 결과
4. 요약 및 논의
감사의 글
참고문헌
참고문헌 (22)
참고문헌 신청
1. [학술지(정기간행물)] - Baran, J. A / 1977 / Phonological contrastivity in conversation: A comparative study of voice onset time / Journal of Phonetics 5 : 339 ~ 350
2. [인터넷자원] - Boersma, P / / Praat: Doing phonetics by computer
3. [학술지(정기간행물)] - Cho, T / 1999 / Variation and universality in VOT: Evidence from 18 languages / Journal of Phonetics 27 : 207 ~ 229
4. [단행본] - Cho, Y. Y / 1990 / Syntax and phrasing in Korean in The Phonology-Syntax Connection / Chicago University Press : 47 ~ 62
5. [학술지(정기간행물)] - Choi, H / 2002 / Acoustic cues for the Korean stop contrast: Dialectal variation / ZAS Papers in Linguistics 28 : 1 ~ 12
2. [인터넷자원] - Boersma, P / / Praat: Doing phonetics by computer
3. [학술지(정기간행물)] - Cho, T / 1999 / Variation and universality in VOT: Evidence from 18 languages / Journal of Phonetics 27 : 207 ~ 229
4. [단행본] - Cho, Y. Y / 1990 / Syntax and phrasing in Korean in The Phonology-Syntax Connection / Chicago University Press : 47 ~ 62
5. [학술지(정기간행물)] - Choi, H / 2002 / Acoustic cues for the Korean stop contrast: Dialectal variation / ZAS Papers in Linguistics 28 : 1 ~ 12
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UCI(KEPA) : I410-ECN-0101-2010-701-001658985