So I'm trying to sleep and I can't. I hear this like Jet engine flying like a high hum. It's not

[Justice wanted]

my imagination either or my furance because I opened my window and heard it. It was louder and seems to be flying over my city BUT it has been going on for a good 45 mins. Goes faint like leaving the area than comes back full force.

[TheWraith]

1. Go to the place where the electrical line enters your house.

See if it's stronger there. Old transformers can create a high humming sound that's transferred through the wire to the house, making it seem like the noise is "in" the structure of the house, even when you open a window.

[Justice wanted]

3. No. Doesn't seem to be coming from that. Even walked to the block and it is still as if coming

from the sky away from the lines.

[Systematic Chaos]

2. You don't have to point it at you, but grab the biggest fan you have...

...and turn it on high, and put it near you.

I can't sleep easily without that 'white noise' drowning out other ambient sounds. It's really very helpful.

[Justice wanted]

4. I will try that.

[JDPriestly]

5. Noise pollution is becoming a big problem for city-dwellers.

It has always been a big problem near airports and in some areas near freeways, but it is becoming worse everywhere now.

[Brother Buzz]

6. Street sweeper?

Back and forth on neighboring streets going faint like leaving the area than comes back full force?

[Justice wanted]

17. NOthing was out. My street was "dead"

[GReedDiamond]

7. I have heard that type of sound where I am,..

...maybe three times in the last almost two years.

It seems to be coming from everywhere and nowhere.

It sounds lie a helicopter or some kinda aircraft passing overhead - which never goes away - until it abruptly stops.

When it stops, it is a great relief.

[Justice wanted]

14. You nailed it spot on.

[Ichingcarpenter]

8. 'The Hum'

The Hum is a generic name for a series of phenomena involving a persistent and invasive low-frequency humming noise not audible to all people. Hums have been reported in various geographical locations. In some cases a source has been located. A Hum on the Big Island of Hawaii, typically related to volcanic action, is heard in locations dozens of miles apart. The Hum is most often described as sounding somewhat like a distant idling diesel engine. Typically, the Hum is difficult to detect with microphones, and its source and nature are hard to localize.

The Hum is sometimes prefixed with the name of a locality where the problem has been particularly publicized: e.g., the "Bristol Hum", the "Taos Hum", or the "Bondi Hum"

Explanations

In the case of Kokomo, Indiana, a city with heavy industries, the source of the hum was thought to have been traced to two sources. The first was a pair of fans in a cooling tower at the local DaimlerChrysler casting plant emitting a 36 Hz tone.

The second was an air compressor intake at the Haynes International plant emitting a 10 Hz tone.[10][11] This hum is audible in some parts of Pune, India, for last more than 10 months.

http://en.wikipedia.org/wiki/The_Hum

[Justice wanted]

15. Interesting I will read more about it.

[arikara]

9. I have tinnitus

usually I can block it out but sometimes it sounds just like my neighbor's diesel pickup truck idling on and on. Loud and obnoxious. What my Dr suggested is to get a small flat speaker to put under my pillow, which I use with my ipod. Sometimes I use music and sometimes I'll listen to a podcast of something. It helps a lot.

[JohnnyRingo]

10. I heard that same thing one night earlier this week

I'm in NE Ohio (not near a major city), and it just sounded like a jet engine going full bore for several minutes. Most planes are out of audio range in less than a minute, but this continued at the same volume for quite a while. Then it would fade away and return several minutes later.

It was dark and I didn't see anything., and it was hard to tell what direction it was coming from.

On edit:
My friend heard it too.

[randome]

11. They're coming to get you.

Don't...fall...asleep.

Sorry, it's morning so I figured it would be okay to say that.

[Justice wanted]

16. I did fall asleep around 3:30

[Mr Dixon]

12. This is what you heard

[img][img\]

Get used to it

[doc03]

13. Sounds like a subject for late night radio on Coast to Coast n/t

[NNN0LHI]

18. I have the same sound here today but I know what it is

There is a train backed up out of Chicago sitting on the the tracks south of town with its engines idling waiting for its turn to go further north.

Some days I can hear them and some days I don't. It depends on the wind direction and temperature how well I can hear them. When conditions are just right it sounds like they are parked in my driveway even though we are over a mile from the tracks.

Have any railroad tracks near you?

Don

[Sandaura]

19. Constant noise explained....................

Hello,

The noise you are hearing is the smart grid communication layer leaking into our environment. It is also sending high frequencies in the form of dirty electricity into our homes via the wiring. If you hear this please visit my blog www.sandaura.wordpress.com
and leave your comments. Get involved. This is a serious environmental crime impacting our wildlife as well.

Thank you,

Sandaura