All sounds in this film, without exception, are from the mouth of Beardyman.
The soundtrack was written, conceived and produced by Beardyman to demonstrate the insane capabilities of Dolby’s new virtual-surround-sound chip for mobile devices. This is the stereo version.
The piece was produced by Think Espionage and Dolby and is super sick in the face. If you like it, that makes you really cool.

For more info and Dolby Mobile 5.1 Virtual Surround version go here.