User blog:Slimeytoady/How do you convert wav files into au files?

I'm asking a lot of questions here but I can't help it. I need to fully 100% understand how to code everything in M.U.G.E.N to stop asking as many questions. My topic now though: How do you convert wav files into au files?

You see, I've been able to find a English soundpack for Tron Bonne (at last!). But, it's a wav file. Anyway to make it a au file? I'd prefer that you don't have to download any software, but I'd just like a answer at the end of the day. Help please!?