[linux-audio-user] Saving LADSPA FX chains in Ardour

Lee Revell rlrevell at joe-job.com
Mon Mar 27 15:47:23 EST 2006

On Mon, 2006-03-27 at 09:17 +0100, David Haggett wrote:
> On Sunday 26 March 2006 21:44, Brian Dunn wrote:
> > David Haggett wrote:
> > >Is it possible to export an entire effects chain for re-use in another
> > > ardour session?
> >
> > I'm not sure about doing this in ardour, but i've done it with jack rack.
> > jack-rack will save your while fx chain and all the perameters in a file.
> > you could then use the qjackctl connection bay to route your instrument
> > into jack rack and then jack rack into ardour, for recording.
> Thanks for the answer, Brian.  Unfortunately, having tried this I found 
> Jack-Rack to be a bit resource hungry and I got a few XRUNs even before I 
> started recording.  I tried both using jack-rack as the track input and as an 
> insert, and the result was about the same.

It should be impossible for Jack-Rack to cause xruns - this would be the
fault of the plugins you have loaded.  Did you load any that are
described as non-RT safe?  What kernel are you using?

> And, of course there is the fact that some of the sounds I've made have 
> plugins both before and after the fader, which would mean 2 copies of 
> jackrack.

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