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Related Experiment Videos

A miniature accelerometer for detecting glottal waveforms and nasalization.

K N Stevens, D N Kalikow, T R Willemain

    Journal of Speech and Hearing Research
    |September 1, 1975
    PubMed
    Summary
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    A lightweight accelerometer measures glottal acoustic output and nasal cavity coupling. This non-invasive device shows potential for clinical applications in speech and voice analysis.

    Area of Science:

    • Biomedical Engineering
    • Acoustic Signal Processing
    • Speech Science

    Background:

    • Assessing glottal acoustic output and nasal coupling is crucial for understanding speech production.
    • Current methods may be invasive or lack portability.

    Purpose of the Study:

    • To evaluate a lightweight accelerometer for non-invasively measuring glottal acoustic output.
    • To assess the device's capability in indicating acoustic coupling to nasal cavities.
    • To explore potential clinical applications of the accelerometer signals.

    Main Methods:

    • A lightweight accelerometer was attached to the neck to capture glottal acoustic output.
    • The accelerometer was attached to the external nose to assess nasal cavity acoustic coupling.
    • Signal waveforms were recorded and analyzed.

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    Main Results:

    • The accelerometer successfully obtained waveforms related to glottal acoustic output.
    • The device provided indications of acoustic coupling to the nasal cavities.
    • Examples of generated accelerometer signals were presented.

    Conclusions:

    • A lightweight accelerometer offers a non-invasive method for analyzing speech production.
    • The technology shows promise for clinical applications in voice and speech disorder assessment.
    • Further research is warranted to fully explore its diagnostic potential.