As part of a larger project I’m working on, I’ve developed a small Windows CLI application that waits for audio output on the devices loopback channel. My thanks go out to NAudio for making this process easy.
Check out the repository, or head straight to the releases for the precompiled binary.
Astute readers who are familiar with WinUAE, Power Automate and who have followed my Chiptune radio station should have a good idea of where this is heading!