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 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

https://www.facebook.com/estebanviveros.art

http://www.papodecompositor-es.blogspot.com.br/

http://expurgacao.art.br/



_______________________________________________
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

_______________________________________________
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list