Through creative use of audio layering and filters, Peter "Flash! Bang!" Sneddon transformed the incidental sounds and music of The Elder Scrolls V into "Sounds of Skyrim (Flash! Bang! Dubstep Remix)". In the YouTube description for the song, Sneddon explains some of his techniques.
For example the kick was made by layering a punch, the bassy part of firing a bow, and pressing B in the save menu, compressing and EQ'ing them all individually.
The snare was comprised of chopping wood, jumping in a puddle and eating an ingredient then leaving the menu. These were again all compressed and EQ'ed individually then put in a sampler and bussed reverb was added.
The white noise build up is a wind noise that has a filter sweep on it with a high res peak.
The result speaks for itself. Quite impressive, really. Makes me wonder if people like Sneddon just hear things differently.
Check out Flash! Bang!'s Soundcloud page for a crisper, cleaner version.