If you live anywhere where people love Harleys and Dodge Ram trucks with aftermarket exhausts, then 65 is luxury levels of quietness.
Also, whether in my small village or in a fancy suburb, there seems to always be someone with a 2 cycle, muffler-free piece of lawn equipment running. Leaf blowers are the worst, but weed trimmers and now even leaf vaccuums are common.
Or, if you live in an urban area, especially in NYC, there's rarely a moment that you don't hear an emergency vehicle siren echoing throughout the neighborhood.
Unfortunately, it's just a noisy world. At least this aircraft is electric and has some goal of keeping noise as low as possible.
They don't say how/where they measured, so the figures are basically worthless. 65-70 dB(A) seems on the low end of consumer unmanned quadcopters[1], e.g. "Maximum sound pressure level for fast flyover at 15 m height: 62 dB(A)" for a DJI Phantom 2 weighing less than 2kg.
If they managed to get into that range for a vehicle that must weigh many hundreds of times more, I guess that'd be very impressive.
You need to live in a quieter area. Too much noise pollution in NYC.
In a suburb of Portland Oregon I routinely hear helicopters up to about 2000 feet. I hear many planes at over 5000 ft. When jets take off from PDX and climb over my house I can easily hear them at about 16,000 feet.
Depending on the weather I hear aircrafts at 32,000 to 40,000 ft. Trough closed windows (double paned isolating stuff) at night. Mostly traffic from/to Paris, France and from/to Asia, which goes over here.
There will be a difference between a hovering helicopter and one travelling at cruising speed. I assume you experience more of the latter while I the former.
Also, whether in my small village or in a fancy suburb, there seems to always be someone with a 2 cycle, muffler-free piece of lawn equipment running. Leaf blowers are the worst, but weed trimmers and now even leaf vaccuums are common.
Or, if you live in an urban area, especially in NYC, there's rarely a moment that you don't hear an emergency vehicle siren echoing throughout the neighborhood.
Unfortunately, it's just a noisy world. At least this aircraft is electric and has some goal of keeping noise as low as possible.