Its nowhere near done and it won't be released until after 0.4.0 comes out.  Currently, the files are exactly 8 times smaller than the original wave file, but that is with no compression, I will add compression later.  I'm still trying to figure out how to convert the 8 bit signal to a single bit one, this is the best I've got so far but I know I can do a lot better.  If anyone knows the algorithm or where I can find it, that would be really helpful!  Especially if you know how the RealSound algorithm works or similar player.

Here is a sample executable, it doesn't sound good, but at least you can hear it on wabbitemu.  Its awful on a real calculator though, so test it on the emulator.

Nice to see wave conversion :O

It may come useful in games for sound effects or the like, or for beatboxes requiring more than just beeps.

EDIT: The quality reminds me Seren's Guitar Hero ASM clone, but the static appears to be much less worse. In his GH game it was acute to the point of hurting my ears