--- On Mon, 12/14/09, Patai Gergely <patai_gergely@fastmail.fm> wrote:

Also, the actual mixing (limited to the mixChunk
function) is embarrassingly slow, and I wonder how much it could be
improved without leaving the pure world.

The program uses Portaudio for playback...

Patai, I asked a similar question about a week ago, inquiring about efficient buffers
for audio. I got a good response:

http://thread.gmane.org/gmane.comp.lang.haskell.cafe/67258/focus=67293

Working with immutable trees instead of arrays still freaks me out, but page 289 of RWH
actually made me feel a little better about it. :)