Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics (대한후두음성언어의학회지)

The Korean Society of Laryngology, Phoniatrics and Logopedics. (대한후두음성언어의학회)
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Jitter and Shimmer Measurements of Dysphonia among the Different Voice Analysis Programs

각종 음성분석기에 따른 음성장애 환자의 주기간 주파수 및 진폭변동률 분석

  • Choi Seong Hee (Department of Otorhinolaryngology, The Institute of Logopedics & Phoniatrics, Yonsei University College of Medicine) ;
  • Nam Do-Hyun (Department of Otorhinolaryngology, The Institute of Logopedics & Phoniatrics, Yonsei University College of Medicine) ;
  • Lee Seung-Hoon (Graduate Program in Biomedical Engineering, Yonsei University) ;
  • Jung Won-Hyuk (Graduate Program in Biomedical Engineering, Yonsei University) ;
  • Kim Deok-Won (Department of Medical Engineering, Yonsei University College of Medicine) ;
  • Choi Hong-Shik (Department of Otorhinolaryngology, The Institute of Logopedics & Phoniatrics, Yonsei University College of Medicine)
  • 최성희 (연세대학교 의과대학 이비인후과학교실 음성언어의학연구소) ;
  • 남도현 (연세대학교 의과대학 이비인후과학교실 음성언어의학연구소) ;
  • 이승훈 (연세대학교 의과대학 의학공학교실) ;
  • 정원혁 (연세대학교 의과대학 의학공학교실) ;
  • 김덕원 (연세대학교 대학원 생체공학 협동과정) ;
  • 최홍식 (연세대학교 의과대학 이비인후과학교실 음성언어의학연구소)
  • Published : 2005.11.01
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Abstract

Background and Objectives : Voice perturbation measures, such as jitter and shimmer has been importantly used for diagnosis and treatment efficacy of laryngeal dysfunction. This study was conducted to investigate validity of newly developed multi-channel voice analyzer program by comparing with MDVP, PRAAT, TF32. In addition, we compared the voice perturbation measures with different voice analyzer program by type of signals. Materials and Methods : Nineteen mild-severe dysphonic patients participated in our study. Fundamental frequency, jitter and shimmer values were obtained from different voice analyzer program using the same sustained/ah/phonation. Results : Fundamental frequency and shimmer were highly correlated whereas jitter was weakly correlated between newly developed multi-channel voice analyzer program and the others though different pitch computation algorithm except MDVP, In addition, Type 2 and 3 signals were weakly correlated than Type 1. Conclusion : In the clinical setting, clinician may have sufficient information of voice analyzer and control conditions properly for severity of pathologic voice before voice perturbation measure to obtain reliable results.

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