Ladspa
LADSPA provides a standard way for plugin audio processors to be used with a wide range of audio synthesis and recording packages. This allows a developer to make a reverb program and bundle it into a LADSPA plugin library. Ordinary users can then use this reverb within any LADSPA-friendly audio application.
- http://www.ladspa.org/
- http://plugin.org.uk -- More plugins
- ladspa (plugin) -- A page about the alsa-lib pcm plugin "ladspa"