Hearing Protector Performance: How They Work and What Goes Wrong in the Real World
نویسنده
چکیده
In previous EARLogs1 we have discussed how to measure and rate the attenuation of hearing protection devices (HPDs) in the laboratory, how these devices affect auditory communications, and perhaps most importantly how HPDs perform in real world (RW) environments. It was found that laboratory attenuation measurements significantly overestimate the RW performance of HPDs, due to the unrealistic, optimized manner in which experimental subjects can wear these devices for short duration tests. In this, EARLog #5, we will examine these concepts further by analyzing how a correctly worn HPD operates and how its effectiveness is compromised by misuse, misfitting, HPD aging, and abuse.
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