Hey Mark, there's one thing I couldn't figure out that maybe you'll have better luck with. Kim's patch brings the volume of the MP3 down and mixes it with the PCM sound using some assembly code in the audio_mix() function. The thing is, after mixing, the resulting volume is pretty soft, because it's a 50/50 mix. Any way you could take a quick look at the assembly code and figure out some way of amplifying the PCM sound (the one that the user app is playing) so that it's a little louder? I'm not nearly gifted enough in assembly. He already has code to scale the MP3 sound down. I was thinking maybe the same approach could be used to scale the PCM sound up, but I wasn't able to get it done.

Just another item for the work queue...