in my years using pd on linux i have never gotten it to work with low latency and jack. same as you i always got glitches and dropouts.
with alsa it is fineā¦ > On 29 Jan 2018, at 10:25, Roman Haefeli <reduz...@gmail.com> wrote: > > Hey all > > I'm working on a patch that transmits audio through UDP. The patch runs > totally smooth on macOS (10.10 and 10.11) with Pd 0.48-1 and JACK as > back-end. On the Linux machines I tested (all Ubuntu 16.04) with the > same version of Pd I get a lot of glitches, although I'm using very > similar Jack settings (128 frames/period, 3 periods). Glitches happen > more frequently when UDP streaming is on, but don't completely > disappear when I stop UDP transmission. So, relatively to macOS, Pd > seems to be more prone to glitches on Linux. > > Just to be sure that my Linux machine is up to task I tuned it with the > help of [1]. I get very stable performance with softwares like Ardour, > even under load. It's only Pd that creates glitches. I also observed > that Pd experiences drop outs while jack reports not glitches. I > believe to have observed that ardour only glitches when jack does. So, > it seems Pd is less "tightly coupled" to jack, does that sound right? > > Is there anything I can do to tune Pd for stable low latency (on > Linux)? > > BTW: What happened to those messages when running with -rt: > > "priority 6 scheduling enabled. > priority 8 scheduling enabled." > > Roman > > > [1] https://github.com/raboof/realtimeconfigquickscan > > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list