심도 청각장애 아동의 발성특성: 강도, 음도 및 그 변동률을 중심으로
The Phonatory Characteristics of Voice in Profoundly Hearing-Impaired Children: with Reference to F0, Intensity, and their Perturbations
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초록
This study investigates the differences in mean F0, intensity, jitter, and shimmer across hearing aid, gender, and vowels. For this study, 18 hearing-impaired children, 18 cochlear implanted children, and 18 normal hearing children as a control group were asked to read seven Korean vowels (/a, Λ, o, u, щ, i, ε/). Subjects' readings were recorded by NasalView and analyzed by Praat. Results showed that the means of F0 were significantly higher in the hearing impaired group than in the normal hearing group; in the female group than in the male group; and in high vowels than in low vowels. Second, intensity was significantly higher in the hearing impaired group than in the normal hearing group; in the female group than in the male group; and in low vowels than in high vowels. Third, jitter was significantly higher in the normal hearing group than in the hearing impaired group; in the female group than in the male group; and in back vowels than in front vowels. Finally,shimmer was significantly higher in the CI group than in the normal hearing group or the hearing aided group; in the male group than in the female group; and in low vowels than in high vowels.
Abstract
This study investigates the differences in mean F0, intensity, jitter, and shimmer across hearing aid, gender, and vowels. For this study, 18 hearing-impaired children, 18 cochlear implanted children, and 18 normal hearing children as a control group were asked to read seven Korean vowels (/a, Λ, o, u, щ, i, ε/). Subjects' readings were recorded by NasalView and analyzed by Praat. Results showed that the means of F0 were significantly higher in the hearing impaired group than in the normal hearing group; in the female group than in the male group; and in high vowels than in low vowels. Second, intensity was significantly higher in the hearing impaired group than in the normal hearing group; in the female group than in the male group; and in low vowels than in high vowels. Third, jitter was significantly higher in the normal hearing group than in the hearing impaired group; in the female group than in the male group; and in back vowels than in front vowels. Finally,shimmer was significantly higher in the CI group than in the normal hearing group or the hearing aided group; in the male group than in the female group; and in low vowels than in high vowels.
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