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Reliability of OperaVOX against Multidimensional Voice Program (MDVP).

M Mat Baki1, G Wood, M Alston

  • 1Ear Institute, University College London, London, UK; Royal National Throat Nose Ear Hospital, University College London Hospital NHS Trust, London, UK; Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.

Clinical Otolaryngology : Official Journal of ENT-UK ; Official Journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
|September 30, 2014
PubMed
Summary
This summary is machine-generated.

OperaVOX shows high reliability for voice analysis, comparable to MDVP for fundamental frequency (F0), jitter, and shimmer. This vocal analysis tool is suitable for clinical use, except for noise-to-harmonic ratio (NHR).

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Area of Science:

  • Speech and Language Pathology
  • Acoustic Analysis of Voice
  • Biomedical Engineering

Background:

  • Accurate voice analysis is crucial for diagnosing and monitoring voice disorders.
  • Traditional methods like the Multidimensional Voice Program (MDVP) are widely used but may require specialized equipment.
  • Mobile-based applications offer a potential alternative for accessible voice assessment.

Purpose of the Study:

  • To evaluate the reliability and agreement of the OperaVOX application against the established MDVP software.
  • To determine if OperaVOX can be a viable tool for measuring key acoustic parameters of voice.

Main Methods:

  • A cross-sectional reliability study was conducted in a university teaching hospital setting.
  • Recordings of the vowel /a/ were made using OperaVOX on iPods from 50 healthy volunteers and 50 patients with voice disorders.
  • Acoustic parameters including fundamental frequency (F0), jitter, shimmer, and noise-to-harmonic ratio (NHR) were analyzed and compared using intraclass correlation (ICC) and Bland-Altman (BA) methods.

Main Results:

  • OperaVOX demonstrated high inter- and intrasoftware reliability (ICC > 0.75) for F0, jitter, and shimmer.
  • Bland-Altman analysis showed good agreement between OperaVOX and MDVP for these parameters, with minimal bias.
  • Significant differences in acoustic parameters were found between healthy volunteers and patients using OperaVOX (P < 0.001), except for F0 in females.

Conclusions:

  • OperaVOX is a reliable and comparable tool to MDVP for measuring fundamental frequency, jitter, and shimmer.
  • The application exhibits high internal consistency for these voice parameters.
  • OperaVOX shows potential as a user-friendly and accessible tool for voice analysis in clinical settings, though NHR measurement requires further validation.