Joe, You might also want to check Qjackctl's Patchbay. I didn't understand the usefulness of this feature until I read this article: http://www.rncbc.org/drupal/node/76 It keeps your connections persistent even if the applications close and reopen and you can save them as presets. Cheers, Hector On Sun, Nov 2, 2008 at 7:46 PM, Joseph Sanger wrote: > Hi there Hector, > > Many thanks! I'll check this out. > > Just for anyone who's interested: > > I spent last night on a sort of "there's got to be an easier way" project; > I've been experimenting with the API and made two instances of csound, one > of which contains the actual sound-making csound code and sends via chnset > and can be stopped and started for recompiling etc., the other of which is > always on and always connected to jack and gets audio from chnget. The API > simply copies audio from one channel to the other every ksmps. > > To my surprise it works and means I don't have to disconnect / reconnect to > Jack, and in fact I can keep complex connections, but it would be much > simpler if Jack worked without hanging; however it means I can wait for the > next official Jack release without playing with CVS too much. > > Thanks again, > > Joe > > Hector Centeno wrote: >> >> Hello Joe, >> >> The discussion about this issue continued in the Ardour list and >> that's why the solution to this problem didn't make it to this list. >> You can read the whole thread here: >> >> http://tinyurl.com/5ntyr8 >> >> Basically it seems that installing Jack from CVS solves the problem, >> I've done some testing and seems to help. >> >> Cheers, >> >> Hector >> >> >> On Sat, Nov 1, 2008 at 10:59 PM, Joseph Sanger wrote: >>> >>> Hello there, >>> >>> Just out of interest, did this work? Or did you manage to fix it another >>> way? I was just about to email the list about similar issues (Csound >>> crashing Ardour/Jack) and I ran across this thread. >>> >>> Thanks, >>> >>> Joe >>> >>> Hector Centeno wrote: >>>> >>>> Thanks Paul, >>>> >>>> I did the priority setting following someone else's advice on setting >>>> the rtirq script and jack. I'll try taking it out. >>>> >>>> I tried jack from SVN a few weeks ago and had a few crashes too... but >>>> maybe it was caused by the fact that I installed it on top of the >>>> already installed official Jack from Ubuntu (I was a bit lazy to deal >>>> with the dependency mess). I'll give it a better try. >>>> >>>> >>>> Cheers! >>>> >>>> >>>> Hector >>>> >>>> >>>> >>>> On Thu, Oct 23, 2008 at 2:30 AM, Paul Davis >>>> wrote: >>>>> >>>>> On Thu, 2008-10-23 at 02:16 -0400, Hector Centeno wrote: >>>>>> >>>>>> Hello, >>>>>> >>>>>> I just worked on a project that involved recording several tracks of >>>>>> sound synthesized by Csound in realtime (tried both official 5.09 and >>>>>> CVS build) plus ambisonic ladspa panners, ambdec (ambisonic decoder) >>>>>> and jconv (convolution application). I started this project using >>>>>> Ubuntu Studio Linux and ended it with OpenSuse (both using their >>>>>> respective RT kernels and getting same problems with both). It became >>>>>> a very unstable combination since every time I stopped Csound, >>>>>> randomly Ardour would disconnect from jack or jack would crash, and >>>>>> then I was unable to make Ardour reconnect after restarting jack (it >>>>>> would complain about not being able to reconnect the ports). It was >>>>>> happening so regularly that I had ready on my desktop a couple of >>>>>> scripts to restart everything. >>>>>> >>>>>> Is there anything I could do to avoid this? Is it Csounds fault? Is it >>>>>> my system? Jack is running like this: jackd -R -P60 -p1024 -t2000 -u >>>>>> -dfreebob -r48000 -p1024 -n3 -D (using a Edirol FA-101). Could this be >>>>>> a realtime priorities issue? I installed the rtirq script by Rui Nuno >>>>>> Capela tunned to prioritize the firewire ports and made sure Jack is >>>>>> running at a lower priority (firewire is at 70). Jack's version is >>>>>> 0.109.2 and Ardour's is 2.5. >>>>> >>>>> Some of your instability probably comes from JACK 0.109.2 (not all of >>>>> it, but some). There will be a new release out very soon which will fix >>>>> the JACK-contributed portion. If you feel comfortable doing it, then >>>>> you >>>>> can use JACK from svn already. >>>>> >>>>> I repeat what I have said so often: there is almost never any reason >>>>> for >>>>> users to use the -P flag to JACK. Unless you are working on a special >>>>> system, just leave JACK to pick priorities. >>>>> >>>>> --p >>>>> >>>>> >>>>> >>>> >>>> Send bugs reports to this list. >>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe >>>> csound" >>>> >>>> >>> -- >>> Joseph Sanger >>> >>> Blueberry Eikaiwa >>> www.bbeikaiwa.com >>> joe@bbeikaiwa.com >>> >>> >>> Send bugs reports to this list. >>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe >>> csound" >>> >> >> >> Send bugs reports to this list. >> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe >> csound" >> >> > > -- > Joseph Sanger > > Blueberry Eikaiwa > www.bbeikaiwa.com > joe@bbeikaiwa.com > > > Send bugs reports to this list. > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" >