BTW: The folks at DeepMiningCorpAssoc sound like assholes.
The shepard tone is an audio illusion which seems to get forever higher but never really does.
Whoever DeepMiningCorpAssoc is, STOP TRYING TO COPYRIGHT THIS! It doesn't have a single bit of your music in it!
All sounds and images in this video are in the public domain and not copyrighted, feel free to use it!
Shepard tone sound was downloaded from Soundcloud (sound not copyrighted), (Thanks to a guy in the comments.)
A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the base pitch of the tone moving upward or downward, it is referred to as the Shepard scale. This creates the auditory illusion of a tone that continually ascends or descends in pitch, yet which ultimately seems to get no higher or lower. It has been described as a "sonic barber's pole".