This is again a weird noise that’s hard to classify.
I would go for the hum phenomenon. What about you guys?
Loud “trumpet” sound recordered in Philadelphia, PA on March 14, 2012.
The video uploader’s comment says:
[quote_box_center]My camera phone is not very good on sound however im sure there were other people that recorded this sound,by the end of the video the sound had stopped. very weird.[/quote_box_center]
What do you think this electrifying noise is? Listen to some more on our map!