Brian Redfern had the idea to convert the audio stuff to use csound, giving the ability to generate the audio at runtime and giving them a more dynamic feel instead of being pre-recorded. Some conversation about this:
brian: I'd like to use the csound engine to generate the sounds and music in "realtime"
pabs: that could be really cool, I don't think there are many games that do that
brian: its the new thing, so there are a couple doing that, but its in commercial gaming, no one has the time to add it to an open source game so far
brian: basically the sound effects can change depending upon game action
pabs: sounds pretty awesome
pabs: the sound effects in chromium could definitely use some loving - like when you get hit by weapons fire and stuff