strange humming noise?

Question

When I try to sleep, I can hear a distant humming noise. Some nights its bad enough for me to wear ear plugs. I have tried investigating the source but cant find any nearby source. I suspect its from aircon/transformer somewhere. Strangely, I can hear the same hum when staying several miles away. I can also hear it outside sometimes. Some people can also hear, some cant most arent disturbed by it. Occasionally it goes away which is bliss. What is this hum and whats causing it? Its definetley not in my ears or head!

Answer 1

Transformers are renowned for humming and it is most likely there is one near by. Try and triangulate the direction of the sound, should not be difficult. Once found report it.

Answer 2

It certainly sounds like tinnitus to me-a condition of the inner ear. Unless a doctor has ruled this out it is the most likely explanation.

Answer 3

If it is a 60-cycle hum, it might be some electrical equipment.

Answer 4

I hear the same sound it sounds like a high picth eletric divice.thats you ear drum.but sometime i hear the nintendo wiimenu music and my wii is unpluged. that is stranger.

Answer 5

check the power supply and cpu fan, sounds like a blade is either bent or snapped off.

Answer 6

Fridge, power lines, or someone who forgot the words.

Answer 7

ghosts, there standing right next to your bed watching you messing with your mind making crazy sounds mauhahahahaha

Answer 8

No dear, it's your feet.

Answer 9

hmmm is it your feet? my sister hum!!!

Answer 10

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm