• Korean Linguistics
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• v.80
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• pp.211-234
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• 2018

This study aims to research the acoustic properties of Korean and Vietnamese monophthongs by Vietnamese advanced Korean learners, and to discuss the realization of Korean monophthongs compared to Koreans. The Vietnamese advanced Korean learners do not distinguish between /e/ and /${\varepsilon}$/, which are the same as Korean. They pronounce Korean /e(${\varepsilon}$)/ close to /e/ in their native language. In the case of /ʌ/, it is reported that many errors are observed in previous studies. However, /ʌ/ of Vietnamese advanced learners is realized similar to /ʌ/ spoken by Koreans. /ɯ/ of Vietnamese advanced Korean learners is pronounced in the back of the tongue, whereas in the central by Koreans. In the case of /o/ and /u/, there is no significant difference by the Vietnamese advanced Korean learners. /ɯ/ and /u/ are pronounced in relatively front side of the tongue in Korean, but it is not observed in the Vietnamese advanced Korean learners.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.39
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• pp.9.1-9.5
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• 2017

Background: Nasalance is used to evaluate the velopharyngeal incompetence in clinical diagnoses using a nasometer. The aim of this study is to find the nasalance differences between Vietnamese cleft palate children and Korean cleft palate children by measuring the nasalance of five oral vowels. Methods: Ten Vietnamese cleft palate children after surgery, three Vietnamese children for the control group, and ten Korean cleft palate children after surgery with the same age participated in this experimentation. Instead of Korean control, the standard value of Korean version of the simplified nasometric assessment procedures (kSNAP) was used. Result: The results are as follows: (1) the highest nasalance score among the Vietnamese normal vowels is the low vowel /a/; however, that of Korean normal vowels is the high vowel /i/. (2) The average nasalance score of Korean cleft palate vowels is 18% higher than that of Vietnamese cleft palate vowels. There was a nasalance score of over 45% among the vowels /e/ and /i/ in Vietnamese cleft palate patients and /i/, /o/, and /u/ in Korean cleft palate patients. Conclusion: These different nasalance scores of the same vowels seem to cause an ethnic difference between Vietnamese and Korean cleft palate children.