ANR headsets
A query regarding Active Noise Reductions headsets.
My understanding of the way they work is that they generate a frequency which is opposite to that entering the ear, effectively cancelling out (most of the) sound.
I have also been told that the same ENGERY is still entering the ear - and it is this whcih causes hearing damage. The brain will effectively hear less, but the ears are still being damaged.
Anyone know any more about this?