[linux-audio-user] Jack/LADSPA/RT-mixer-software?

Hello And very many thanks for all the c-port2000 answers, it's been some time that I've encountered this friendly mailing list :-). I'm looking for some simple software to accomplish the following: - do realtime monitoring(VU) and mixing - output mixed data for headphones-monitoring (using same card, I have the infamous st-audio rig, on which I didn't manage to get _any_ of the MIDI ports to work) - optionally route some of the input channels trough LADSPA plugins A Gtk+2 GUI would be much preferred to anything else. Has anyone seen such a beast? If not, how does this sound: - a jack client that will get the input data - will do the mixing and drive the stuff trough ladspa - output result using jack (this should be possible, only I skimmed trough some jack-related docs, difficult to get handle on it) - display VU/implement GUI for levels using GTK+ (2.x). Does anyone see any architectural problems with this approach? I'd guess that implementing mixing using a jackd plugin would be more efficient, but is it worth it and how to connect the controls to the GUI? ak.