More on noise
Expressflight,
Thanks for your comments re noise testing. Clearly you have a particular interest in these things.
I've read that the noise from an ATR72 or A319 on approach at around 650 feet up, but as heard 500 feet or so away from the true overhead position would be roughly equivalent to a bus at around 30 feet away in terms of dbSEL - does this sound about right? I imagine actually that the turboprop would be a bit noisier.