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Related Experiment Videos

[Phonatory airflow in the supraglottal space].

K Müsebeck, H Rosenberg

    Laryngologie, Rhinologie, Otologie
    |May 1, 1983
    PubMed
    Summary

    Measuring phonatory airflow above the glottis using a hot wire tube provides insights into voice production. This method correlates airflow velocity with sound intensity and can assess normal and dysphonic voices.

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    Area of Science:

    • Acoustics
    • Physiology
    • Speech Science

    Context:

    • Phonatory airflow is crucial for voice production.
    • Measuring airflow dynamics can reveal vocal characteristics.
    • Previous methods may have limitations in assessing airflow non-invasively.

    Purpose:

    • To introduce a non-invasive method for measuring phonatory airflow velocity.
    • To investigate the relationship between airflow dynamics and voice characteristics.
    • To assess the applicability of this method for evaluating normal and dysphonic voices.

    Summary:

    • A hot wire tube placed in the supraglottic space non-invasively measures phonatory airflow velocity (50-150 cm/s).
    • Airflow oscillations and fundamental frequency were synchronously analyzed, correlating airflow velocity with sound intensity.
    • Diminished or irregular air consumption is linked to a 'hard' or 'pressed' voice quality.

    Impact:

    • This technique offers a new tool for assessing vocal function.
    • It can aid in the diagnosis and understanding of voice disorders.
    • Provides objective data for speech pathology and audiology research.

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