- Miller Puckette msp@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