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KMID : 1022420140060020055
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Phonetics and Speech Sciences
2014 Volume.6 No. 2 p.55 ~ p.64
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The Articulation Characteristics of the Profound Hearing-Impaired Children with Reference to Formant Bandwidth
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Choi Eun-Ah
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Abstract
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This study measured formant bandwidths of profound hearing impaired children and examined the characteristics of theirarticulation. For this study, 10 cochlear implanted children(CI), 10 hearing aid children(HA) and 10 normal hearingchildren(NH) were asked to read 7 Korean vowels(/?, ?, o, u, ?, i, ?/). The subjects' readings were recorded by NasalViewand analyzed by Praat. The analysis of the formant bandwidths explains the degree of vocal fold opening and the characteristics of radiation. Through the analysis of formant bandwidth, we can see that the hearing-impaired maintain vocal fold tension when theyspeak high vowels and characteristics of radiation. Narrower B1 means better maintain vocal fold tension, wider B2 meansmore front and wider B3 means the rounder lips. CI's B1 was widest and NH's was narrowest. And females' B1 was widerthan males'. Among vowels, B1 of /a/ was widest, and B1 of /i/ was narrowest. In the case of B2, HA and NH's B2 waswider than CI's. Females' B2 was wider than males'. And B2 of /i/ was widest, and B2 of /?/ was narrowest. In the case ofB3, NH's was widest, and CI's was narrowest. Males' was wider than females'. Among vowels, B3 of /o/ was widest, and B3of /?/ was narrowest.
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KEYWORD
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profound hearing-impaired, formant bandwidth, radiation, articulation
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