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성대결절 음성 중증도에 따른 MDVP와 Praat 프로그램 별 파라미터 차이

Difference in Voice Parameters of MDVP and Praat Programs according to Severity of Voice Disorders in Vocal Nodule

  • 심상용 (연세대학교 대학원 언어병리학협동과정) ;
  • 김향희 (연세대학교 의과대학 재활의학교실 및 재활의학연구소, 연세대학교 대학원 언어병리학협동과정) ;
  • 김재옥 (강남대학교 교육대학원 언어치료교육전공) ;
  • 신지철 (연세대학교 의과대학 재활의학교실 및 재활의학연구소)
  • 투고 : 2014.04.08
  • 심사 : 2014.04.29
  • 발행 : 2014.06.30

초록

MDVP and Praat are measured by nine variables in common; F0, jitter local, jitter absolute, jitter relative average perturbation, jitter period perturbation quotient, shimmer local, shimmer dB, shimmer amplitude perturbation quotient, and NHR. In the present study, 30 female subjects were divided by their disorders(control group, vocal nodule group), ages(from 18 to 50 years old), gender(women), and severities of voice disorder(GRBAS-G0, G1, G2). Then, the subjects' vowel /a/ was evaluated 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 were meaningfully higher than Praat regardless their severities. The result of the research confirms the relationships among GRBAS, MDVP and Praat as well as the differences in acoustic variables between MDVP and Praat.

키워드

참고문헌

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