Originally Posted by
relangford
Can you use a sound level meter in flight? Would that fall under the banned electronics category? Also, many modern ones have datalogging feature, also electronic. What about frequency (octave band) measurements; they might also be a factor. I do find the sound level data to be very interesting; I wonder if Boeing/Airbus report such numbers. Any problems with TSA bring SLM on board in carry-on?
I'll freely admit that mine is just an app on my phone - someone with access to a real decibel meter may be able to give more accurate numbers, this was just for my own personal edification.