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MDVP, Praat, TF32에 따른 음향학적 측정치에 대한 비교

Comparisons of voice quality parameter values measured with MDVP, Praat, and TF32

말소리와 음성과학 2020년 12권 3호 p.73 ~ 83
고혜주, 우미령, 최예린,
소속 상세정보
고혜주 ( Ko Hye-Ju ) - Myongji University Department of Psychological Rehabilitation
우미령 ( Woo Mee-Ryung ) - National Health Insurance Service Ilsan Hospital Rehabilitation Treatment Center
최예린 ( Choi Yae-Lin ) - Myongji University Department of Psychological Rehabilitation & Speech-Language Pathology

Abstract


Measured values may differ between Multi-Dimensional Voice Program (MDVP), Praat, and Time-Frequency Analysis software (TF32), all of which are widely used in voice quality analysis, due to differences in the algorithms used in each analyzer. Therefore, this study aimed to compare the values of parameters of normal voice measured with each analyzer.
After tokens of the vowel sound /a/ were collected from 35 normal adult subjects (19 male and 16 female), they were analyzed with MDVP, Praat, and TF32. The mean values obtained from Praat for jitter variables (J local, J abs, J rap, and J ppq), shimmer variables (S local, S dB, and S apq), and noise-to-harmonics ratio (NHR) were significantly lower than those from MDVP in both males and females (p<.01). The mean values of J local, J abs, and S local were significantly lower in the order MDVP, Praat, and TF32 in both genders. In conclusion, the measured values differed across voice analyzers due to the differences in the algorithms each analyzer uses. Therefore, it is important for clinicians to analyze pathologic voice after understanding the normal criteria used by each analyzer when they use a voice analyzer in clinical practice.

키워드

MDVP; Praat; TF32; jitter; shimmer; noise-to-harmonics ratio (NHR)

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