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Using circumaural enclosures with children

C H Musket, R J Roeser

    Journal of Speech and Hearing Research
    |June 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Circumaural cushions significantly improved hearing threshold measurements in children compared to standard supraaural cushions, especially in noisy environments. This suggests better hearing assessment for pediatric audiology.

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    Area of Science:

    • Audiology
    • Pediatric Hearing Assessment
    • Acoustics

    Background:

    • Accurate pure-tone threshold measurement is crucial for diagnosing hearing loss in children.
    • Standard supraaural cushions (MX-41/AR) may not provide optimal acoustic isolation for pediatric hearing tests.
    • The effectiveness of circumaural cushions in improving threshold measurements in children requires further investigation.

    Purpose of the Study:

    • To compare the efficacy of circumaural cushions versus standard supraaural cushions (MX-41/AR) for pure-tone threshold measurements in children.
    • To evaluate the impact of ambient noise on threshold measurements using different cushion types.
    • To assess the test-retest reliability of the MX-41/AR cushion in quiet and noise conditions.

    Main Methods:

    • Pure-tone thresholds were measured in 24 children (8-13 years) using TDH 39 drivers with either standard MX-41/AR supraaural cushions or one of four circumaural cushions.

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  • Testing was conducted in both quiet and 60 dB SPL wideband noise.
  • Three conditions were used: Condition 1 (MX-41/AR), Condition 2 (circumaural), and Condition 3 (retest with MX-41/AR).

    • Main Results:

    • Statistically significant differences in thresholds were found between the MX-41/AR cushion and one circumaural cushion in quiet.
    • In the presence of noise, thresholds obtained with three of the circumaural cushions were significantly lower (better) than those with the MX-41/AR cushion.
    • A significant test-retest difference for the MX-41/AR cushion was noted at 6000 Hz in quiet only.

    Conclusions:

    • Circumaural cushions demonstrate potential for improving the accuracy of pure-tone threshold measurements in children, particularly under noisy conditions.
    • The findings suggest that circumaural cushions may offer superior acoustic isolation compared to the standard MX-41/AR cushion for pediatric audiology.
    • Further research is warranted to optimize circumaural cushion selection for pediatric hearing assessments.