In article ,
Thomas Borchert wrote:

RK,

The question is, does ANR do any better at attenuating the
ear-damaging frequencies than ordinary noise attenuating headsets?


I suggest you read the ANR tutorial at Lightspeed's website.

Which provides no proof that using an ANR headset will protect your
hearing any more than a good passive.

The reality is that noise-induced and age-related hearing loss most
frequently occurs in the higher frequencies. The human ear is
significantly more susceptible to noise-induced hearing loss at high
frequencies, where ANR has no effect.

ANR headsets would be an improvement over no headset, but I have yet to
find any clinical studies or scientific documentation from qualified
professionals (a group which doesn't include Lightspeed's marketing or
engineering departments) that concludes that ANR has any benefit to
protecting against hearing loss.

In my experience, what ANR does do is provide for a less fatiguing, more
enjoyable flight.



JKG