Hello Jeremy! Oh bugger, I would have suggested Ecasound/Nama as your first options. :-) but there is csound, although I have a feeling, that it's LADSPA support can be a little confusing not to say buggy. No idea, what the current state is, I tried it last over a year ago. Perhaps CLM has LADSPA/DSSI support as well. But I'm really wondering, why Ecasound should use so much CPU power. Yes it does like to start two instances of plugns. I'm not sure how it behaves exactly, when there's a discrepancy between inputs and outputs. but running it in Ecasound would have a few advantages: MIDI controllability from the outside, a stable and well-behaved host. I had been looking, but didn't find it. But I'm sure, that either in relation to the sndfile-suite or in the neighbourhood of jack-dssi-host there had been another small utility to run LADSPA plugins. Sorry I can't be more specific. At least sox can handle ADSPA. But sox to my knowledge has no JACK support. I hope some of this may be of help to you. Good luck Julien ---------------------------------------- http://juliencoder.de/nama/music.html

Hi Jeremy Guitarix amp plugin have 1 in 1 out. Fx plug have 2 in 2 out. Seems you run 2amp instances. Will try to answer more presice when I'm back from my travel. Hermann -- Diese Nachricht wurde von meinem Android Mobiltelefon mit WEB.DE Mail gesendet. Jeremy Jongepier <jeremy(a)autostatic.com> schrieb: I'm trying to figure out what is the best way to use the Guitarix-Amp and Guitarix-FX LADSPA plugins on a headless system (read Raspberry Pi). I've tried it with Ecasound but it already consumes more CPU than the guitarix application itself! So I'm obviously doing something wrong. Maybe this is because the Guitarix-Amp plugin has one input and two outputs, read something about Ecasound starting up multiple instances of the plugin in such a case which is not what I want. So any hints or tips on getting this to run smoothly? I can use either JACK or ALSA directly. I prefer using JACK, somehow using bare ALSA produces large amounts of xruns. Thanks in advance, Jeremy _____________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-user

Hi Jeremy, On Fri Feb 15 2013, Jeremy Jongepier wrote: How about jack-dssi-host? $ DSSI_PATH=/usr/lib/ladspa jack-dssi-host guitarix_amp.so jack-dssi-host will then print out (among other things) its OSC path. Use this path with dssi_osc_send to set the plugin parameters (append '/control' to the path): $ dssi_osc_send osc.udp://youraddresshere.com:13160/dssi/guitarix_amp/guitarix_amp/chan00/control 5 -20 which sets control port 5 to -20. You can query the current state of the plugin: $ dssi_osc_update osc.udp://youraddresshere.com:13160/dssi/guitarix_amp/guitarix_amp/chan00 and don't forget analyseplugin to get the port numbers. HTH, -Sean