[PD] glitches when streaming UDP

Roman Haefeli reduzent at gmail.com
Tue Jan 30 11:07:44 CET 2018

On Mon, 2018-01-29 at 10:25 +0100, Roman Haefeli wrote:

> 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).

My personal, somewhat outdated laptop from 2007 has absolutely stable
performance with same patch, same Pd version, same OS, same kernel. To
be clear: It's only Pd that performs well on one computer and not so
well on others. I get glitch-free audio with Ardour on all tested
computers. So I wonder what circumstances affect specifically Pd. It's
a pity the most powerful computer I have access to is in its current
state not suitable for Pd projects :-(

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