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Microprocessor versus self-recording audiometry in industry.

D A Harris

    The Journal of Auditory Research
    |April 1, 1979
    PubMed
    Summary
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    Industrial workers

    Area of Science:

    • Occupational health
    • Audiology
    • Industrial hygiene

    Background:

    • Industrial noise exposure can lead to hearing loss.
    • Accurate auditory threshold measurement is crucial for hearing conservation programs.
    • Different audiometer types may yield varying results.

    Purpose of the Study:

    • To compare auditory thresholds measured by self-recording audiometers and microprocessor audiometers in industrial workers.
    • To identify significant differences in threshold measurements between the two audiometer types.
    • To assess the practical implications of these differences for industrial hearing conservation.

    Main Methods:

    • 46 industrial workers were tested using both a self-recording audiometer and a microprocessor audiometer.
    • Auditory thresholds were recorded at specific frequencies (2, 3, 6, and 8 kc/s).

    Related Experiment Videos

  • Statistical analysis was performed to compare the measurements from the two devices.

    • Main Results:

    • Significant differences in auditory thresholds were observed at 2, 3, 6, and 8 kc/s.
    • The self-recording audiometer consistently measured lower thresholds than the microprocessor audiometer (2.3 to 6.7 db).
    • Observed differences are attributed to psychophysical methods and tone presentation (pulsing vs. steady).

    Conclusions:

    • While statistically significant, the measured differences are unlikely to impact the effectiveness of well-managed industrial hearing conservation programs.
    • Both audiometer types can be utilized, but awareness of potential differences is important.
    • Careful administration and interpretation are key for accurate hearing assessments in industrial settings.