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KMID : 1022420140060020107
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Phonetics and Speech Sciences
2014 Volume.6 No. 2 p.107 ~ p.114
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Difference in Voice Parameters of MDVP and Praat Programs according to Severity of Voice Disorders in Vocal Nodule
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Shim Sang-Yong
Kim Hyang-Hee
Kim Jae-Ock
Shin Ji-Cheol
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Abstract
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MDVP and Praat are measured by nine variables in common; F0, jitter local, jitter absolute, jitter relative averageperturbation, jitter period perturbation quotient, shimmer local, shimmer dB, shimmer amplitude perturbation quotient, andNHR. In the present study, 30 female subjects were divided by their disorders(control group, vocal nodule group), ages(from18 to 50 years old), gender(women), and severities of voice disorder(GRBAS-G0, G1, G2). Then, the subjects' vowel /a/ wasevaluated by MDVP and Praat. First, jitter and shimmer variables of the MDVP were significantly different by severities. Praat showed different jitter, shimmer, and NHR parameters by severities. Second, jitter and NHR levels of MDVP weremeaningfully higher than Praat regardless their severities. The result of the research confirms the relationships amongGRBAS, MDVP and Praat as well as the differences in acoustic variables between MDVP and Praat.
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KEYWORD
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MDVP, Praat, GRBAS, Vocal Nodule, F0, Jitter, Shimmer, NHR
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