I had a similar problem a couple of weeks ago. cleared it as follows:- Backed off the frames number to the next highest. I wasn't getting xruns either but I assume it was close to it (or something like that). Anyway it cleared it. Hopefully somebody will give you a more technical answer but in the meantime... Steve On Fri, Sep 06, 2013 at 10:14:18AM +0200, Fero Kiraly wrote: > Hi friends, > > I have a weird crackling sound (it happens sometines, but often) > it is no xruns. > > I am using archlinux->jack->rtirq->presonus 1818VSL=>MIDI keyboard > > it happens when i hold long tones with Zynaddsubfx or bristol. > > Do you have an idea what it could be ? > > thanks. > > fero. > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user