thanks, clear indeed ! JM Le 27 nov. 2012 à 10:36, IOhannes m zmoelnig a écrit :
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 2012-11-26 23:29, Cyrille Henry wrote: >> >> >> Le 26/11/2012 22:38, Jean-Marie Adrien a écrit : >>> Thanks Miller ! >>>> -nosound -udiobuf 5 -slepgrain 1 >>> Definitely academic :) >>> >>> But I run intense audio on this PD instance, together with midi >>> driving lights in real time. here are the flags : >>> >>> -rt -noadc -midioutdev 1,2 -audiooutdev 2 -outchannels 8 >>> >>> phasor~ would not do it ? >> phasor~ will do provide a better clock than a metro since pd >> internal time is "perfect". your problem come from jitter between >> "pd time" and "real world time". > > just to clarify: > both [phasor~] and [metro] live in an ideal world with perfect timing. > unfortunately this ideal world is not "real" (compared to your wall > clock) and has a slight jitter. > the jitter of [phasor~] is cleared by sending samples in a buffered > way to your soundcard. > with MIDI, Pd doesn't do any buffering and no synchronisation to some > external clock is done, so messages appear in bursts which you notice > as a inaccurate timing. > but the problem is really not Pd's internal timing (which is "ideal") > but the communication to the outside world. > > so to answer that specific question: [phasor~] will help you, but only > if you are able to use the signal that comes out of your soundcard, > which is synced to the wall clock, in order to trigger (or do whatever > you want to do). > if you only want to use audio-objects as an internal clock source, > then you will gain exactly nothing (but lose a lot, since you > complicate things which you normally get for free). > > >>> maybe simply change MIDI interface to without-driver model. >> yes, that sound like a good solution. > > well yes, if your midi driver is broken (that's how i interpret a > "weird stacking process"), you should probably replace that. > > fgmadr > IOhannes > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.12 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAlC0iYMACgkQkX2Xpv6ydvSnRwCgr46N5LhnlkpNtiBQUFx8BKbE > BMgAn3dpbvGMaDuoGWWH8shQqYZfoCO4 > =IhZR > -----END PGP SIGNATURE----- > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list