Abstract
Due to recent F.C.C. regulations, all telephones in North America will be required to have at least 12 dB of amplification. While this is a definite asset to the hard of hearing community, there are fears that normal hearing workers who use the telephone most of the day could suffer noise-induced hearing loss. Theoretical calculations validate this hypothesis. Measurements of actual levels in a call center were taken. Finally, a method of providing noise dosimetry within a digital telephone set is presented. Simultaneous measurements show good correlation.
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