[PD] Freezes with Pd-Extended and Jack

[Raphael Raccuia]

Actually I didn't tried... At the moment I don't have so much time to 
experiment another version, maybe later, seems great project.
rr
Le 02. 02. 13 15:19, Ivica Bukvic a écrit :
>
> Does this affect you on pd-l2ork as well?
>
> On Feb 2, 2013 3:10 AM, "Raphael Raccuia" 
> <rafael.raccuia at blindekinder.com 
> <mailto:rafael.raccuia at blindekinder.com>> wrote:
>
>     Hi,
>     late for this, but problem persists in 0.43release.
>     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 soundconfig.
>     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 annoyingfor who use
>     complex jack-patches...
>     http://sourceforge.net/tracker/?func=detail&aid=3519504&group_id=55736&atid=478070
>
>     - >20ms latency is very highfor live processing: I calculated pd
>     adds 22ms. The round trip latency in the lower stable state for me
>     at 48K is 88ms (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  <http://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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