The Bloop

Jonny7

On a more serious note guys.. what the hell is this?

https://www.youtube.com/watch?v=OBN56wL35IQ

Powerful underwater sound picked up by multiple deep sea microphones.

From wiki

The sound, traced to somewhere around 50° S 100° W (a remote point in the south Pacific Ocean west of the southern tip of South America), was detected several times by the Equatorial Pacific Ocean autonomous hydrophone array,[1] which uses U.S. Navy equipment originally designed to detect Soviet submarines.

According to the NOAA description, it "rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km." The NOAA's Dr. Christopher Fox does not believe its origin is man-made, such as a submarine or bomb, or familiar geological events such as volcanoes or earthquakes. While the audio profile of the Bloop does resemble that of a living creature, the source is a mystery both because it is different from known sounds and because it was several times louder than the loudest known animal, the blue whale.[2] Five other significant unexplained sounds have been named by NOAA: Julia, Train, Slow Down, Whistle, and Upsweep.[3][4][5]

I am going with the Kraken on this one.

studiorat

Sped up 16 times, it doesn't actually sound like that. Too low to hear and is most likely geological I'd imagine.

The NOAA have loads of recordings from their underwater recordings.

Meanwhile : http://whalefall.bandcamp.com/track/julia-train-slow-down

For other weird CT sounds check out this : Lincolnshire_Poacher

And Spy Numbers

Sparticle

Ice scraping against things.

Either that or Cthulhu.

ed2hands

Kraken.

Pete M.

Sounds a bit like Sigur Ros jammin with Atari Teenage riot after a load of ketamine if you ask me.