This works just like the o-scope on windows media player, you can scroll through different visualizations, but I use it mainly for the o-scope one. This is just to check songs for any indication of clipping while you're away from the computer and the song is on your phone. I checked songs that I knew were clipped and could see the flat spots, and some decaf'd/bigpimpin songs and could see the clarity.
You play the song on your music app, then back out of it and open up the visualizer and scroll to o-scope, and watch it just like WMP.
Https://market.android.com/details?id=nils.visualisator5000.free