[PD] jack periods 32 = no pd

Peter P. p8rpp at aol.com
Tue Jan 28 00:33:51 CET 2014

* Miller Puckette <msp at ucsd.edu> [2014-01-28 00:02]:
> Probably that's so - but Pd should still be able to deal with the mismatch.
> OTOH, since Pd is built-in 64 blocksize, you wouldn't be able to reduce Pd's
> latency by reducing jack's blocksize below 64.
Allright, then I can live without going lower.
> I'm not sure about this, but I believe that Pd running standalone (using ALSA
> driver) can achieve as low or perhaps slightly lower latency than Pd running
> under jack.  This is only of interest if Pd's the only audio application
> you're running on that particular audio interface, however.
I can currently start pd using
-alsa -rt -audiobuf 2
and get click-free performance, as long as I don't the classic "Select
all.." and move things around in Tcl/Tk, which of course causes
drop-outs. Haven't measured latency with that setup yet, but it sure
sounds promising. Using the oss emulation of alsa works too, but
slightly more clicks when moving objects on the canvas.

best, P

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