Of course this is not an optimal solution so I am in search of the proper fix. I reached out to the IDJC developer (project page: https://idjc.sourceforge.io) and he found that IDJC worked on his system with Pipewire .77 with no issues. He then tried with Pop OS and can reproduce the problem. His take is that it's a problem with how Pipewire was compiled for Pop, not a bug in either PW or IDJC. Source: 10 months ago

Rivendell - Linux based and way more powerful than RadioDJ. Only attempt if you’re really technical. I’m in the middle of building a system to see if I like it better than RadioDJ. It took me weeks to sort out audio issues (and I’m fairly technical). Source: over 1 year ago

Due to being open-source, you *can* just obtain the Rivendell software suite from http://rivendellaudio.org/ and run it. But, unless you're a Linux pro, you will want a pre-installed system + some form of basic technical support as you learn the software. Source: almost 2 years ago

If you have some Linux knowledge or are willing to learn, there is nothing more powerful than http://rivendellaudio.org/ in the "free as in beer, free as in freedom" radio automation space. Source: almost 3 years ago

I have radio station running Rivendell (http://rivendellaudio.org/). Per Rivendell's documentation, all the machines are running CentOS 7. Overall the system works great. Linux-powered Air studio + production studio + transmitter-site backup, all sync'd off a central audio/db server with failover. Sweet! Source: over 3 years ago