is that for real scarry

I doubt it's real, considering it was down under somewhere in Siberia. It does get hotter when you approach the center of the Earth, however I'm sure the Devil wouldn't be there.
I actually used to have another one similair to the one you just heard but ten times more scary than this. It not only had the sounds of what you heard but also had sounds of somekind of machinery which made a noise similair to a machine that worked on steam and that steam engine sound in the backround. Also the voices were more fine tuned, like demons and screaming of people being tortured.