When you are shooting for No Noise At ALL, every decibel counts.
As we age, we lose not only sensitivity but range. Take this simple test.
A good look at basic to complex noise measurement apps to be used in conjunction with an external microphone.
Says it’s a muffler for the coffee grinder but it has myriad applications.
Directives and Training material for personal noise control from OSHA
Better think twice before expecting good noise control results from an open office plan.
I can imagine there will be a lot of happy ears in the Army!
If you’ve ever been to O’Hare you know there are REAL noise problems……
Everybody has one. The safety board shows emergency exit routes, eye wash station locations and rules for safe living. Well let’s ad some hearing loss prevention signs!
NASA has some BIG speakers!