Coarticulation effects of Korean sibilant /s/ before a high front segment
- Authors
- 강현숙
- Issue Date
- Apr-2010
- Publisher
- 한국음운론학회
- Keywords
- Korean /s/; coarticulation; spectral peaks; center of gravity frequency; band energy difference
- Citation
- 음성음운형태론연구, v.16, no.1, pp.3 - 18
- Indexed
- KCI
- Journal Title
- 음성음운형태론연구
- Volume
- 16
- Number
- 1
- Start Page
- 3
- End Page
- 18
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/40292
- DOI
- 10.17959/sppm.2010.16.1.3
- ISSN
- 1226-8690
- Abstract
- This paper investigates acoustic characteristics of Korean /s/ before a high front segment and argues that Korean /s/ shows acoustic characteristics of a palatalized segment due to the coarticulation with the following high front segments. In Experiment, it is shown that the first 30 msec of /s/ before /i, ye, ya/ shows spectral peaks around 4 kHz whereas /s/ before open vowels like /e, a/ shows peaks around 6 kHz. We suggest that this is due to the tongue body position at the palatal area placed at the beginning of /s/ when it is followed by /i/ or /y/. Center of gravity frequency, and band energy difference also show differences of Korean /s/ in different contexts. Based on the results of this experiment, we argue that Korean /s/ is modified from its beginning due to the coarticulation with the following segments if articulators of /s/ are compatible with those of the following segments. Interestingly, this paper also shows that in case /s/ is followed by /yu/ or /yo/, its spectral shape shows significant differences from /s/ followed by /ya/ or /ye/. It raises the question that in Korean the domain of coarituclation may be larger than the target and its immediately surrounding segment.
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