[marcosdumay]

There is plenty of space to change the number of propellers, total area, and rotational velocity and change the sound profile of the plane.

There is also a lot of space on how you maneuver it on the landing and take-out, so you make less sound when it matters the most.

There is the entire thing about minimizing weight too, that also reduces sound, but it's also not clear how much can be done.

Overall, it's not clear at all how much noise the eVTOL planes will make.