Abstract
Soldiers in today’s military operate in environments where noise can make verbal communication and auditory awareness of incoming danger very difficult. Due to advances in technology and the development of bone-conduction (BC) communication systems, soldiers are now able to communicate via two-way radio without surrendering their ability to perceive surrounding events. However, despite rapid advancements in the application of BC systems, very little is known in regards to the perceived equivalency between the two modes of hearing. To better understand how BC technology can be utilized, this study sought to determine the relationship between spectral content of bone and air conducted sound using conduction equivalency ratios (CERs), whereby CER is defined as the difference in sound intensity levels between equally loud signals transmitted in both conduction modes.
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