Abstract
An investigation was conducted to determine the attenuation, intelligibility, and wearability of 9 commercially available communication headsets. The main purpose of the study was to determine which headset would be best suited for use in Nike Zeus checkout trailers. Attenuation tests were conducted using the threshold-shift method according to ASA procedure. Intelligibility tests using Harvard PB monosyllabic word lists were conducted in 4 phases: (1) quiet-to-quiet, (2) quiet-to-noise, (3) noise-to-quiet, and (4) noise-to-noise. The noise environment was simulated in a reverberation room using tape recordings of the noise generated by equipment in the checkout trailer. Determination of wearability and comfort was by subjective evaluation and expert opinion. 3 of 9 headsets tested were found to be acceptable for use in the checkout trailers.
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