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KMID : 1022420100020010135
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Phonetics and Speech Sciences
2010 Volume.2 No. 1 p.135 ~ p.145
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The Phonatory Characteristics of Voice in Profoundly Hearing-Impaired Children: with Reference to F0, Intensity, and their Perturbations
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Choi Eun-Ah
Park Han-Sang
Seong Cheol-Jae
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Abstract
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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 (/?, ?, o, u, ?, i, ?/). 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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KEYWORD
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Mean F0, intensity, jitter, shimmer, profound hearing loss, children
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