@mswcpt I highly recommend trying a Rpi sound card. The ones I've tried sound so good. Better than my Motu interface on the Mac. I am using an Audio Injector one now. The PiDac+ sounds amazing, but it doesn't work well with other Pi shields, but sounds really amazing, Hi-fi. I recommend going that route. Set it up, in PD select is as your audio interface, save chagnes, and next time you launch Pd it should be the same setting.
Problems using PD on Raspberry Pi
@nicnut Thank you for the reply. We are going to try with an audio interface that works on Pi! It may very well be that systems that experience this error would benefit from external audio hardware controllers rather than on-board. Will post result once tested. Cheers
The "alsa xrun recovery apparently failed" bug seems to be solved here : https://github.com/pure-data/pure-data/issues/969
So, I downloaded the latest source code and installed Pd 0.51-4 on my Raspi (with Buster ->Linux version 5.4.72-v7+ (dom@buildbot) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #1356 SMP Thu Oct 22 13:56:54 BST 2020)
I use the onboard soundcard (bcm2835), as far as there is no input, I uncheck "input device". When I tested sound, there was no "alsa xrun recovery apparently failed" error message.
But some minutes later in "Pd noGui or GUI mode" + "Raspi console or graphic mode", the error is still there.