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KMID : 0917520020090020179
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Journal of Speech Sciences
2002 Volume.9 No. 2 p.179 ~ p.192
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The Acoustic Study on the Voices OF Korean Normal Adults
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Abstract
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Our present study was performed to investigate acoustically the Korean normal adults´; voices, with enough large number of subjects to be reliable.
120 Korean normal adults (60 males and 60 females) of the age of 20 to 39 years produced sustained three vowels, /a/, /i/, and /u/ and read a part of ´Taking a Walk´ paragraph, and by analyzing them acoustically with MDVP of CSL, we could get the fundamental frequency (F_0), jitter, shimmer and NHR of sustained vowels; speaking fundamental frequency (SF_0), highest speaking frequency (SFhi), lowest speaking frequency (SFIo) of continuous speech. As results, on the average, male voices showed 118.1~122.6 ㎐ in F_0, 0.467~0.659% in jitter, 1.538~2.674% in shimmer, 0.117~0.133 in NHR, 120.8 ㎐ in SF_0, 183.2 ㎐ in SFhi, 82.6 ㎐ in SFIo. And, female voices showed 211.6~220.3 ㎐ in F0, 0.678~0.935% in jitter, 1.478~2.582% in shimmer, 0.098~0.114 in NHR, 217.1 ㎐ in SF_0, 340.9 ㎐ in SFhi, 136.0 ㎐ in SFIo. Among the 7 parameters, every parameters except shimmer showed the significant difference between male and female voices. And, when we compared the three vowels, they showed significant differences one another in shimmer and NHR of both genders, but not in F_0 of males and jitter of females.
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