We sleep on the third floor underneath the roof. Suddenly a slow moving very loud humm moving over the house. Like a subwoofer blowing bass LOUD.
I know how it feels and hears when military planes and helicopters pass by in the night. This was nothing like it, no turbine, no prop, no rotor, just a ominous humm, im no sound engineer but it was lower than 40hz.
It moved very slowly by, came back and then moved faster away.
I was in chock and wife heard it to, we could not place it. Didn’t think to look out a window. Thought id share this here.
submitted by /u/Bruggenmeister
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