I'm hoping someone can suggest a free plugin that could substitute the AU Dynamics Processor in OS X. It's an awesome compression and gating tool. But the parameter window doesn't display everything in Ardour 2.8, and the plugin is thus only partially usable. In particular, I'm fond of the realtime animations in this plugin. For those not familiar, there is a an x-y plane representing input-output levels resp. A pointer moves along a user-defined curve in this plane showing the action of the plugin.
Anybody use something remotely similar?