So I actually tried my sennheiser noise-canceling headphones and they actually made things worse because they can barely do anything to cancel out frequencies so low, but in fact cancel everything else out. So the net effect is that the booming rumble seems even louder and worse since it's the only remaining audible thing.Yes however the ear fatigue could only be due, in part, to the peak at 35 Hz. The broader noise spectrum is probably just as much a source of discomfort. Active noise cancelling would be one way to minimize the perceived cabin noise. When I fly in a commercial plane I put on my Bose noise cancelling headset before takeoff, don't take the headset off until we land. The noise cancelling technology greatly reduces my ear fatigue when flying.