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KMID : 0921420100150040494
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Korean Journal of Communication Disorders
2010 Volume.15 No. 4 p.494 ~ p.505
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Phonation Characteristics in the Voices of Adults with Profound Hearing-Impairment: Reference to H1-H2 and Spectral Tilt of the Source Spectrum
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Choi Eun-Ah
Park Han-Sang
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Abstract
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Background & Objectives: The present study investigates the differences in H1-H2 and spectral tilt of the source spectrum among adult speakers by handicap (impaired or normal hearing), gender, and vowels.
Methods: Twenty hearing-impaired adults (HL: Hearing Loss) and 20 normal-hearing adults (NH: Normal Hearing) were asked to read 7 Korean vowels (/?, ?, o, u, ?, i, ?/). Subjects’ readings were recorded by NasalView and analyzed by Praat.
Results: Results showed that H1-H2 was significantly higher in the HL group than in the NH group for male adults but opposite for the female adults. The results also showed spectral tilt was significantly steeper in the HL group than in the NH group for the male adults but opposite for the female adults.
Discussion & Conclusion: The results from the present study are in agreement with the findings of previous studies. For the NH group, the female speakers had a breathier voice than the male speakers. However, the HL group showed an opposite pattern, suggesting the HL group failed to control the phonation mechanism properly.
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KEYWORD
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phonation, source spectrum, H1-H2, spectral tilt, voice quality, profound hearing loss adult
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