Mystery noises!
http://www.greenbaypressgazette.com/apps/pbcs.dll/article?AID=2008807230687
And check out the article responses! :eek: :smack:
Still in all—what is this?
Mystery noises!
http://www.greenbaypressgazette.com/apps/pbcs.dll/article?AID=2008807230687
And check out the article responses! :eek: :smack:
Still in all—what is this?
This has happened in many places. I say check for sound transmitted by the water pipes. I know I can have ear hurting noise from putting the hose in a watering can when I use a certain end. The can amplifies the vibrations remarkably well. The vibrations from many places can enter the home through the water pipes. These people hear the noise in the home and not outside it.
One of my favorite podcasts, Skeptoid, did a show about these “mystery hums” that’s interesting. (Link is to the transcript, not directly to audio.) Basically, there are all sorts of different causes for it, without any evidence for one single unifying cause.