Active Noise-Canceling Headsets

The inclusion of headsets in a list of critical aviation technologies might seem off target, but it is not. Especially in small planes, which are almost universally too loud for our hearing health, a good noise-canceling headset is a critical pilot tool.

Headsets have been around for a long time, and early models were heavy, clunky and not particularly effective. But they were better than nothing. A lot better. And because they early on incorporated earcup speakers and boom-mounted microphones, they helped ease communications difficulties, something pilots who never flew in the pre-headset days, when staticky ceiling-mounted speakers and handheld mics caused communications havoc on nearly every flight, are blissfully unaware of.

New models, of course, feature electronic noise-canceling features, which work by sampling the exterior noise and creating an out-of-phase counterpart to it, effectively electronically canceling the exterior noise, at least a large part of it.

Today, pilots take not good but excellent noise-canceling headsets for granted, but we all know the difference between the noise levels before we put them on and then after, when we don them and hit that switch to activate the sweet quiet that ingeniously designed electronics can bring.