Collapsing ears and the use of circumaural ear cushions at 3000 Hz

Evaluation of hearing acuity at 3000 Hz may be required when there is claim of financial compensation for hearing loss. If collapsing pinnea or ear canals are present, circumaural ear cushions on audiometer earphones can be used to avoid spurious elevation of thresholds. A dial correction is developed for application at 3000 Hz, to be used with corrections developed in a previous study when NAF-48490-1 circumaural ear cushions are used during audiometry.