Lennart Augustsson writes:
> 
> 
> As noted in a recent PR (port-i386/3332) the Linux sound emulation
> isn't complete enough to use the Real Audio player (raplayer) for
> Linux.  Before someone else starts to track down this bug I just
> wanted to say that I have the fixes that are needed to make it work
> (there are several problems).
> 
> I also have an emulation of the Linux mixer device to allow more
> programs to work (this does not really affect raplayer).
> 
> I will submit a PR with this as soon as I figure out why I get a
> little crackling noise sometimes when I start playing.

The crackling is probably caused by the buffer size.  Do you use a SB16?
Look at my work on http://etla.ml.org/~willey/projects/sb16.  It's horribly
out of date and I have been meaning to spend more time on it after Decemner
but I am scrambling to get grad school funding right now and it takes all
of my time...  There might be some info that you can glean.

Mark