Hi, late for this, but problem persists in 0.43release. https://sourceforge.net/tracker/?func=detail&aid=3602109&group_id=55...
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=557...
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
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