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Related Experiment Videos

TONAR calibration: a brief note.

B Weinberg, J D Noll, M Donohue

    The Cleft Palate Journal
    |April 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Calibration of TONAR II instrumentation revealed significant non-uniformity and mismatch in microphone frequency responses. These dynamic interactions impact the accuracy of nasalance ratio measures derived from this system.

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    Area of Science:

    • Acoustic analysis
    • Speech science instrumentation

    Background:

    • The TONAR II system is used for nasalance ratio measures.
    • Accurate acoustic measurements are crucial for speech analysis.

    Purpose of the Study:

    • To evaluate the frequency response characteristics of TONAR II's microphone-separator components.
    • To assess the validity of TONAR II nasalance ratio measures.

    Main Methods:

    • Frequency response measurements of microphone-separator components.
    • Calibration studies of the instrumentation.

    Main Results:

    • Observed significant non-uniformity in the frequency response of individual microphones.
    • Detected considerable mismatch in frequency response between the two microphones.

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  • Identified dynamic interactions between microphone, separator, and talker cavities' resonant characteristics.

    • Conclusions:

    • The observed non-uniformity and mismatch raise concerns about the validity of TONAR II nasalance ratio measures.
    • Further research may be needed to refine or validate the system's performance.