[chuck-users] Help with arrays?

Nobody really uses jankyteeth/soup anymore. SO i figured I'd ask here: I can still not quite figure out how to do random choice wihtout replacement... I seem to have gotten one of the ways of doing it, but need help to make it not crash the spork. Here is the actual code. After all the effects it tries to randomly select pieces out of a sound file and then plays them at random speeds, etc. so you get a very weird reconstructed sound... feed it any sound file that the soundbuf class understands. The main part I'm having trouble with is the main while(true) loop. Could someone help me out to make this thing work without crashing chuck? click here: http://urbanplexus.net/reconstructor.ck