Just to inject a wee bit of science, or what little I can contribute:
A black whole is a bit of mass that is so dense that light cannot escape, as you all know. However, that doesn't mean that it needs to be some huge blubbering object in deep space... I could have a black hole in my coffee cup, for instance. But it's just an incredibly dense thing-It doesn't need to have a lot of mass..Just a lot of density. So, when people collide atoms, first off..The black holes made, if any, could only have as much mass as the atom it was apart of..cause black holes are just incredibly dense, not heavy. Remember how far away the electron shell was from the nucleus? The particles in an atom are SMALL. So, the black holes resulting from the collision of said atoms is even smaller, because they are made from parts of particles. Don't you get it? The black holes are a fraction of the size of an atom[A very large fraction]. The event horizon is where the acceleration of gravity is greater than the speed of light, a constant.
That being said, this isn't a gravitational black hole...On one hand, sound isn't an electromagnetic wave, so it needs a medium to travel through. Atoms normally vibrate. At absolute zero, they don't vibrate. The speed of sound also drops as temperature drops...So... Not sure what to make of it. It definately won't prove or disprove Hawking radiation, though, that's for sure.