Hi Everyone,

I'm having trouble with Pd on a linux machine. I have installed PureDyne onto a ThinkPad x61 and wish to connect Pure Data to Processing. However, I've encountered a problem right from the start with Pd. I keep getting a/d/a sync errors. I've tried using jack, OSS and ALSA to configure sound input/output, but still I have no joy. In particular, I notice that the problems are exacerbated when I use the bsaylor partconv~ external.

I'm rather new to linux, so forgive me if the information I've provided is rather vague. But do I need to setup ALSA or Pd in any particular way? I've tried running Pd from the command line with the -rt flag, as well as following an optimised jack setup that I found on the forum. I notice that this sort of problem has been posted a few times here, but all the solutions given have not provided me with a successful outcome.

Thanks!

James

Do the a/d/a sync errors reported in pd lead to "xruns" in the jack messages ?
Does jack behaves correctly with other applications ?
Are there many GUI elements in your patch ? Pd is not that efficient at handling GUI so this can be a bottleneck.

Yes, I'm seeing messages in the terminal window that say:

Jack: JackClient::ClientNotify ref = 4 name = pure_data_0 notify
Jack: JackClient::kXRunCallback

My patch doesn't have many GUI elements, though I am using the bsaylor partconv~ external. I've noticed that whenever I change the impulse file it causes an error. Though errors still occur without this. Even when I don't use Jack I still get a/d/a sync errors.