Ingen
Ingen is a modular audio processing system for GNU/Linux audio systems using the Jack audio server and LV2, LADSPA or DSSI plugins.
Ingen is currently only available in SVN. Since it requires a few libraries in the same repository, it is easiest to:
svn co http://svn.drobilla.net/lad
Either build raul, flowcanvas and redlandmm first, then ingen; or build the entire repository (in addition to Ingen, you'll get Patchage and Machina with one build process).
Screenshot
User manual
Technical Information
IngenArchitecture - The various components of ingen and how they work together
Resources
FreePlugins - List of all known LV2, LADSPA and DSSI plugins