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Related Experiment Videos

Computer analysis of hoarseness

H Kojima, W J Gould, A Lambiase

    Acta Oto-Laryngologica
    |May 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Researchers quantitatively evaluated hoarseness by separating harmonic and noise components in voices. The study found a strong correlation between the calculated signal-to-noise (S/N) ratio and auditory perceptions of hoarseness.

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    Area of Science:

    • Speech science
    • Acoustic analysis
    • Voice disorders

    Background:

    • Hoarseness is a common voice disorder affecting vocal quality.
    • Objective methods for evaluating hoarseness are needed to complement subjective auditory assessments.

    Purpose of the Study:

    • To develop and validate a quantitative method for assessing hoarseness.
    • To correlate acoustic measurements with perceived vocal quality.

    Main Methods:

    • Harmonic and noise components of voice signals were separated using a laboratory computer.
    • The signal-to-noise (S/N) ratio was calculated for 58 subjects.
    • Acoustic S/N ratio was compared with auditory impressions of hoarseness.

    Main Results:

    Related Experiment Videos

  • A clear correlation was observed between the calculated S/N ratio and the auditory impression of hoarseness.
  • The S/N ratio effectively differentiated between varying degrees of vocal hoarseness.

    • Conclusions:

    • The proposed method using S/N ratio provides a reliable quantitative evaluation of hoarseness.
    • This acoustic analysis technique offers a valuable tool for clinical voice assessment.