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

[David Haggett]

On Monday 27 March 2006 21:47, Lee Revell wrote:
> On Mon, 2006-03-27 at 09:17 +0100, David Haggett wrote:
>
> > 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?

I might have to take back my comment.  I opened up jack-rack to see which 
plugins I was using, and try as I might, I wasn't able to duplicate either 
the high CPU utilisation, or the XRuns.  A bit later on, the problem came 
back.

I've also discovered that some of the plugins I've been using don't appear to 
work for me today.  I think I might have broken something, but don't have 
time to dig deeper at the moment.  I'll look again when I get back off 
vacation.

For the record, I'm using 2.6.11.4-21.10 from SUSE 9.3 (which has the desktop 
and bootsplash patches among others) patched and recompiled with realtime-lsm 
using:

http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc4/2.6.12-rc4-mm2/broken-out/rt-lsm.patch

Thanks for your interest.
-- 

David Haggett