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Related Experiment Videos

[Relation between voice quality and pathological vibratory patterns using high-speed digital imaging].

M Miyaji1, Y Iwamoto, M Oda

  • 1First Department of Otorhinolaryngology, Faculty of Medicine, University of Toho, Tokyo.

Nihon Jibiinkoka Gakkai Kaiho
|May 5, 1999
PubMed
Summary
This summary is machine-generated.

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This study links pathological vocal fold vibration patterns to voice quality in 22 patients. Specific vibratory patterns correlate with hoarseness and vocal fry, aiding diagnosis.

Area of Science:

  • Laryngology
  • Acoustic analysis
  • Biomedical engineering

Context:

  • Pathological larynges present unique vocal fold vibration challenges.
  • High-speed digital imaging offers detailed analysis of vocal fold dynamics.
  • Understanding these dynamics is crucial for diagnosing voice disorders.

Purpose:

  • To analyze vocal fold vibrations in pathological larynges.
  • To correlate observed vibratory patterns with voice quality assessments (GRBAS).
  • To classify vibratory patterns based on disease characteristics.

Summary:

  • 22 pathological larynges were analyzed using computer-assisted high-speed digital imaging.
  • Key parameters included symmetry, regularity, phase difference, glottal closure, amplitude, mucosal wave, and periodicity difference.

Related Experiment Videos

  • Vocal fold vibratory patterns were classified and related to voice quality, with specific patterns linked to hoarseness (R>=2.5) and diplophonia (irregular glottal closure, periodicity differences), and vocal fry (multi-phase opening/closing with long closed phase).

    • Impact:

    • Provides objective data correlating vocal fold mechanics with subjective voice quality.
    • Enhances diagnostic capabilities for voice disorders.
    • Informs potential therapeutic strategies by detailing specific vibratory abnormalities.