Narcissus Audio Output Broken

Just installed a narcissus built Angstrom image on my revB7
beagleboard. Audio output is not working for me.
Everything under playback in alsamixer has been unmuted and turned up
to around 50%. (turning everything up to 100% gives a terrible hiss)
Here is the console output from trying to play an mp3 from mplayer:
http://pastebin.com/m707Ybur

I've searched for similar issues but have come up with no solutions.
Will someone please point me in the right direction?
Thanks,
-travis