Unknown Loud Noise

So your neighbors hear it too? What are their ideas? How often does it happen?

>>17460712
It used to happen more often in the past, but since I've been far away from home more frequently, I'm not able to hear it all the time.
I've only spoken to one household about it, and they had the same conclusion as me, that it was probably just someone using a very loud machine. They still agreed it sounds really fucking eerie, and couldn't make out where it was coming from.
My girlfriend heard it once when she was around here too. She listened closely to it and couldn't come to any conclusion besides saying it sounds like “some really weird dogs howling”.

Where do you live? Hope its not where I think it is..

>>17460726
São Paulo, SP.
I live some kms away from the GRU airport, by the side of a common flight route.

>>17460587
well I've heard creepier before, I mean even pure wind can make scarier noises. I wouldn't be afraid if I were you, it wasn't very loud in these recordings and it seems like it's far away.

>>17460747
It is definitely louder than it seems in the recordings. It does sound very far away, but the issue is, it can come from various directions. Today it came from a direction it never did in the past (an opposite direction from the airport). I could hear it perfectly in my backyard, but there was none of it in my garage, which is where it tends to sound louder.

The noisy background and the small cellphone mic definitely washed the noise down. I can assure you it is not the sound of the wind, though.

And I understand, I am not scared, only intrigued.

Probably just a metal object resonating.

LITERALLY 99% of unexplained sounds are from objects resonating, i.e. they're secondary sources of sound, rather than, say, some kind of magical sky trumpet.

Life is just noisy. It's about as paranormal as raindrops causing ripples on the surface of a lake.

>>17460762
Certainly not explainable by these descriptions... It is very interesting though. There was once a piercing loud noise coming from far away from my house once, however that was only in a dream...

If you really care enough to go see what it was then I'm sure you would be surprised whether it was just a misconception or not.

Your recreation was a lot like Binaural beats, if you haven't heard of that it is actually when two slightly different frequencies are played at the same time and it causes an affect on the brain in terms of sensing the notes correctly. It has also been said to alter the mental state of a person but I can't see this noise being anything like that since Binaural beats are usually very dependent on pan (different noise in each ear).

I don't really have anything to tell you except check it out lol. Or at least to get closer the next time it plays if you are willing too.

>>17460771
Sure, let us assume that.

Since the three recordings have similar harmonic patterns, we can assume it is also the same metal object.

How would you explain the sound then coming from different directions in different times if the day isn't windy? And even if it was windy, a sound coming from a completely opposite direction is a bit farfetched if its source is static and big enough to resonate that far.

If there is anything in physical acoustics that can explain that, you'll have to explain in to me, 'cause I have no idea.

>>17460778
I've been seriously thinking of walking outside whenever I hear it and looking for the source, if there is one. I might look insane, but at least I will be able to find out what the hell that is.

If I ever do find it out, I will update with a new thread here.

>>17460787
You never mentioned how long it's been happening for..

I would wait to see if it's something temporary too... but I don't know how long you've been hearing it.

>>17460803
Yes, and I am afraid I can't give you a perfect answer, such as a first or anything.

However, I've been hearing it since sometime in the end of 2014. It was way more frequent back then, but again, I used to stay more at home at the time.

Everything points to it not being temporary at all. The fact it started all of a sudden still seems to me that something around here changed and is causing the noise from every once in a while.

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Foxes mating?
I thought my cat was being assaulted or something once and it sounded like that but when I looked out the window there was just 2 foxes going at it
I shot an air rifle near them to make the piss off and it worked - maybe try firing into the air when you hear it and the noise might stop

>>17460818
i suggest checking it out if it begins to bother you. I can't think of much else useful.

>>17460826
There ain't no foxes in São Paulo
It's problaby some plane fuckery

>>17460826
Sounds sexy, I guess, but I go nuts whenever I see a goddamn butterfly here in São Paulo. Animals are really rare And if it's stray dogs having a threesome, those are some strong lungs they have there.

I still think if it were dogs, their howls would have to end up in barks at some point, and the sound would have to be more harmonically complex. You can hear that even when other dogs respond to it, the sound keeps sustaining itself non-stop.

>>17460841
Yes, I guess it is. The GRU airport has some facilities for the SP and the Brazilian Air Forces. During the evening, I've heard a war jet constantly flying in circles around here. Fuck, those things are loud, and it made the ground shake the two times it went over my house. It was around 3 AM from what I recall.

Nonetheless, the sound it made was unlike the one in the recording. I think it has something to do with the airport, yet, the way the sound behaves is just too erratic.

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>>17460860
Please just let another varginha happen god

>>17460868
I hope it does, anon. I truly do.