Strange noise in the night.

[linz2d]

I woke up early this morning at around 3 o'clock, I know it was this time because the local town bell struck three. After trying to get back to sleep I could not help but hearing this very odd sound, like the sound coming from a propeller type aircraft in the distance but there was no change in pitch as you expect from a flying aircraft, it was a just a constant unchanging sound. Its a sound which sounds familiar but at the same time I have never heard it before.

With that sound there was the sound of chirping birds(not unheard of at that time of night) but also allot of noise coming from a rookery less than a mile away where the crows where making one hell of racket for some reason. The noise continued for about 15min stopped for about a few minutes and continued until I fell asleep.

Oddly when I was looking for an explanation this morning on Google, for some reason I was compelled to type in "the hum".

This phenomena seems to be happening in other parts of this country and in other parts of the world.

There was even an article about it posted yeasterday on independent.co.uk which is another strange coincidence if you ask me.

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• Strange noise in the night.

[Fred259]

I take it your in the UK linz, I think you may find that it?s a temperature inversion. We have had a few of these of late.

Essentially temperature decreases at 3C per thousand feet and so at altitude the temps can be -20 for example. In certain atmospheric conditions normally caused where high pressure dominates the temperature stops decreasing creating an inversion and a sound barrier.

You talk about aircraft pitch, as in sound which I understand however what you are describing is known as Doppler frequency shift. It?s a bit like standing on a railway bridge as the train approaches we experience an increase in frequency and after the train has passed a decrease in frequency. Formula One race cars produce massive changes in frequency. http://en.wikipedia.org/wiki/Doppler_effect

Therefore if a temperature inversion exists the frequency is trapped within the atmosphere and so produces a constant noise rather than the usual increase and decrease that you would normally expect.

I recall a Glasgow taxi driver swearing spluttering and bluttering (they do that in Glasgow) because he was unable to call his local taxi office two miles away due to interference from American taxi drivers from perhaps New York. Again this is due to the temp inversion where the VHF radio wave is trapped underneath the inversion and so travels great distances.

Don?t worry Linz, all is well curl up and sleep safe.

[linz2d]

That's interesting, if what I understand for Wikipedia is that it is possible but there still needs to be an originator or a sound source, and technically would that have to be directly above. It would mean that something was circling above maybe a plane(presumably) for a extended period of time. Thanks Fred259 I wont rule out what the possibility that it could be as you described.

Another interesting thing is that in the article from the independent is that the hum was heard in the village of Woodland, Durham when you look for it on a map you find that it in the country side and where I live is also located in the countryside but this fact may have no bearing on what produced the sound.

[Fred259]

Ahhh be careful of the folks from County Durham Linz. They are kind of betwixt and between a bit Geordie, a bit Jock with some Yorkshire added in for good measure!

They don’t speak English either. Rather that say My Mother they say Me Mam…. Also remember that’s where they hung the monkey wasn’t it, whatever were they thinking about…

[linz2d]

They hung the monkey, because it was a French monkey, and it couldn't speak English but only French, as French monkeys supposedly do.

What surprised me about "the hum" Durham story, is that its been in the BBC, The Independent and the Telegraph. But this is the kind of story which would in most cases be stuck in the back pages of the tabloid newspaper the Sun.

[Unified Serenity]

More strange sounds heard:



---------- Post added at 22:47 ---------- Previous post was at 22:46 ----------

Here's another saying it's poles shifting and causing strange sounds or sky quakes:

[Nagual]

Some of these strange sounds heard worldwide could have been power lines?

[Chicodoodoo]

These sounds appear to have been picked up with no special equipment, and often without power transmission lines around.

[Auriel]

Not knowing where you live butare there wind turbines nearby? Its a common complaint!

[linz2d]

Well I have not heard this sound again, but I know that so far that the sounds in the videos share no resemblance to it, as for the wind turbine theory, yes there is a wind farm about a good 8 mile away, its possible but I highly doubt it.The hum article on wiki best describes what I heard;

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.

As we are talking about strange noises I had happened to come across this article last week in the guardian: Sonic boom shakes north east - eyewitness account that may interest some.

Something strange happened. I was with a photographer colleague in a Morrisons supermarket grabbing a quick hot drink in the restaurant while out on another story. The restaurant was bustling with customers and the supermarket was also very busy.

Suddenly, a loud booming noise rumbled across the roof of the building. We felt like were in the middle of an earthquake or some kind of unusual seismic event.

It felt similar to the sonic boom you experience when RAF fighter jets go past on exercise - but we were not aware of any aircraft overhead at the time.

The roof began to shake violently and it looked as if it was sagging and about to fall in at one point, as it shook. Within seconds, the boom reached a crescendo as we all looked up, astonished.

Then it stopped. "What on earth was that?" we said to each other, not quite believing what had happened. The other people seemed equally baffled, staring at the roof in bemused wonderment....

[Chicodoodoo]

Robert's post is potentially applicable here. To my ears, many of these sounds seem like resonating standing waves, much like you get when rubbing a wet finger around the rim of a crystal glass. They are occurring all over the planet, which would indicate a non-local phenomenon. We know from NASA satellites that the sun is behaving very strangely at this time, which could easily produce strange effects on the Earth's magnetic field, which in turn may produce audible results in our atmosphere.

I don't know of a way to verify such a thing, so it's just a theory. We've already played fast and loose with the planet using HARRP technology as well as nuclear explosions, with unintended consequences. And you can be sure that the people in Australia are not the only ones paying a price for this. That story is just the rare example that we barely hear about, while most examples go unreported, unnoticed, and unexplained.

We're all getting screwed big-time. We just don't know it.

[Rebus]

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.

Loved the weird noises videos. The one above most resembles what we heard at our last address not too long ago. It was heard at night when it was quiet, but I suppose it could be heard during the day if you concentrated.
My wife said that she could not hear it, but the guy next door said he could, but not his wife. Gender selective?

We also had some severe power line problems as this was in the country. I'm not sure that the two were connected. The electricity did some very strange things.