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논문 기본 정보

자료유형
학술저널
저자정보
김난숙 (충남대학교) 성철재 (충남대학교)
저널정보
사단법인 한국언어학회 언어학 언어학 제78호
발행연도
2017.8
수록면
31 - 61 (31page)

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초록· 키워드

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68 children (4;4~9;11, 35 Adenotonsillar Hypertrophy vs. 33 Allergic Rhinitis) read ‘mommy’ sentence comprised of pure nasal sounds and vowels in order to find some appropriate acoustic correlates to discriminate two groups. Recordings were carried out by both Nasometer (KAY, USA) and Tascam DR05 (TEAC, USA). The data, evaluated by perception test using ExperimentMFC, were acoustically analysed and statistically tested by both SPSS and R, respectively in specific areas.
Hyponasality seems to strongly have to do with Adenotonsillar Hypertrophy and Allergic Rhinitis. Traditionally the nasalance score achieved from Nasometer has been used for judging the degree of nasality concern. Despite Nasometer has been popularly used for the measurement of nasalance, there has been shortcomings in such a way that the apparatus has been quite expensive and given some discomfort of wearing headset. In this respect, this paper seeks to find whether the nasalance score is statistically meaningful in discriminating two groups, if not, go further to mine proper acoustic variables comparable to the nasalance score. Perception test using ExperimentMFC (Praat) showed significant intra- and inter-rater reliability. Nasalance score did not show significant difference between two groups (p=.51). When considered RNR (rhamonics to nois ratio), L/H ratio (low to high energy ratio), and two variables (PC1 and PC2) diminished from 18 normalized band energies by PCA (principal component analysis), two groups were significantly differentiated (p〈.05). When tested by the logistic regression model trained by 70% of the entire data, the 30% test data showed 81% classification accuracy. Together with perceptional judgment, these new set of acoustic variables could contribute to discern hyponasality of two groups.

목차

1. 머리말
2. 아데노이드 편도 비대와 알레르기성 비염
3. 연구 방법
4. 연구 결과
5. 논의 및 맺음말
참고문헌
Abstract

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UCI(KEPA) : I410-ECN-0101-2018-710-001250317