Tue Mar 19 09:49:31 EDT 2013

Lowpass filter

Start with a 2-pole.  What is needed is a quick way to play back a
sound, probably best in racket.  It's time to start trusting the
reference implementation and treat differences between reference and C
as bugs.

Pulseaudio gives me trouble: error messages interact with snot.
Really not usable.

Something else is needed.  Probably a native app that speaks OSC.  I
do have some code for this.  EDIT: Jack wrapper is working and part of
the build process.

[1] http://planet.racket-lang.org/package-source/clements/rsound.plt/1/3/planet-docs/rsound/index.html