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KMID : 1004320150260010040
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Journal of the Korean Society of Logopedics and Phoniatrics
2015 Volume.26 No. 1 p.40 ~ p.45
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A Study of Correlation Between Acoustic and Perceptual Parameters in the Patients with Vocal Polyp
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Lee Hyun-Doo
Jeon Yi-Seul
Hong Ki-Hwan
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Abstract
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Objectives:This study aims to investigate the correlation between the measurements of Praat as an acoustic evaluation and those of GRBAS and CAPE-V as perceptual rating tool respectively. Through this, it also tries to find out parameters to which attention should be paid when an evaluator, who is untrained in auditory-perceptual voice evaluation, conducts voice evaluation with objective tool.
Materials and Methods:Voice samples of this study were 33 vocal polyp patients(23 males and 10 females) who visited our Department of Otorhinolaryngology. They sustained vowel voices of ’e’ were recorded and acoustically analyzed.
Results:As the results of correlation analysis between GRBAS and Praat measurements, G scale and R scale showed statistically significant correlation with Jitt, Shim and NHR. And it is found that B scale represented significant correlation with Jitt, S scale with Shim. As the results of analysis on correlation with CAPE-V and Praat measurements, OS scale and R scale showed statistically significant correlation with Jitt, Shim and NHR. B scale represented significant correlation with Jitt, S scale with Shim.
Conclusion:Although, both GRBAS and CAPE-V were highly reliable, in comparison between CAPE-V and Pratt, more parameters that showed statistically significant correlation are observed, which implies that VAS has more potential to make detailed evaluation than ORD.
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KEYWORD
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GRBAS scale, CAPE-V scale, Vocal polyp, Acoustic analysis
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