[PD] Pd Vanilla on Raspberry Pi
pimassat at gmail.com
Tue Aug 14 12:07:27 CEST 2012
I got this info about the anolog audio output being cheap PWM with
filtering from this thread :
I'm assuming these guys know what they're talking about (I think the first
reply metioning this is by a member of the Raspberry Pi team.
2012/8/14 Michael Zacherl <sdiy-mz01 at blauwurf.info>
> On 14.8.2012, at 01:47 , Miller Puckette wrote:
> > Thanks for the info... some quick ideas:
> good to know but that didn't help.
> I can't tell what it is but apparently it's a timing or order of execution
> issue at startup in batch-mode:
> Delaying the ; pd dsp 1 message by 200ms helps avoiding the "device busy"
> Same patch loaded in the gui, no problem. :-\
> According to 'top' the cpu load drops from 75% to about 70% with -nogui
> for a 4k-window.
> Just about enough to avoid glitching.
> But any system activity brings the sound to a halt for a short moment.
> So that was just an ssh-session and Pd running in batch-mode.
> At some point I'll go through this and see what can be done:
> >> BTW, is it possible to quit Pd via the patch?
> >> Just in case Pd has such high priority that the system becomes
> > Yep: the message is "; pd quit"
> ah, of course!
> thanks, Michael.
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