[PD] Freezes with Pd-Extended and Jack

[Ivica Bukvic]

Does this affect you on pd-l2ork as well?
On Feb 2, 2013 3:10 AM, "Raphael Raccuia" <rafael.raccuia at blindekinder.com>
wrote:

>  Hi,
> late for this, but problem persists in 0.43 release.
>
> https://sourceforge.net/tracker/?func=detail&aid=3602109&group_id=55736&atid=478070
> I confirm it has to do with latency: under ~20ms, bug occurs. Also occurs
> when changing sound config.
> Two things:
> -as said, pd shouldn't recreate jack client on each dsp on. Other problem
> is that a jack patch is lost and replaced by straight connection (pd 0 -> system
> out 1 etc...). Very annoying for who use complex jack-patches...
>
> http://sourceforge.net/tracker/?func=detail&aid=3519504&group_id=55736&atid=478070
>
> - >20ms latency is very high for live processing: I calculated pd adds
> 22ms. The round trip latency in the lower stable state for me at 48K is88ms (measured
> with jdelay tool, with RME multiface)! make a sound, have a coffee and
> come back to listen (a bit exaggerated ;-) )...
>
> rr
>
>  Le 27. 11. 12 10:20, Roman Haefeli a écrit :
>
> Hi all
>
> Johnny-come-lately I am . . .
>
> I've experienced this problem since 0.43 (vanilla and extended), I
> believe, but I haven't really investigated it, because it didn't happen
> that often and I wasn't able to reliably reproduce it. Now I figured out
> a way to reliably reproduce it. It seems the likeliness is related to
> jackd's latency settings. The shorter the latency, the likelier is pd
> going to freeze. With a setting of 128 frames/period and 2
> periods/buffer, I can reliably freeze pd by turning DSP off and on.
>
> The problem seems related to the fact that switching DSP also switches
> the jack client on and off. I think the preferred way would be to be
> able to switch DSP on/off independently from switching audio back-end
> on/off.
>
> @Miller
> Are you still planning to seperate dsp switching from audio backe-end
> switching for 0.44?
>
> Roman
>
>
>
> On Mit, 2012-11-21 at 20:35 -0200, Esteban Viveros wrote:
>
>  Hello,
>
>
> I'm using pd-extended 0.43.4, installed via Hans-Cristoph Steiner ppa.
> I'm using this version because I can't install the stable version in
> Ubuntu 12.04.
>
>
> The problem is, when I start pd with Jack in -rt mode or wherever
> mode, if I turn on dsp, they work well, but if I turn off, and try to
> turn on yet dsp, pd-extended freeze...
>
> Closing Qjackctl (after some time ubuntu can close that)
> pd-extended returns to work, and I can use on alsa directly
> sucessfull..
>
>
> Someone knows where I can comunicate this bug to the developers? Is
> here the place?
>
>
> Thanks a lot!
>
>
> --
>
>
> Esteban Viveros
>
> (27) 8815 7170
> (27) 3066 0359
> (11) 95761 4125
> (11) 2738 7868
> www.bandpage.com/estebanviveros
> https://www.facebook.com/estebanviveros.art
> http://www.papodecompositor-es.blogspot.com.br/
> http://expurgacao.art.br/
>
>
>
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