> Can someone please confirm that these > ... > just plain work, with thaat many recording channels?
Sorry, I can't as I have never tried. I only have one mic. > Can someone please confirm that these > ... > just plain work Sorry, I can't confirm on those mentioned models. I have UMC204HD https://www.behringer.com/product.html?modelCode=0805-AAS > work well with OpenBSD, > i.e. are USB audio-class compliant, don't need any extra "driver", > and just plain work UMC204HD with one mic - yes, it works well with OpenBSD, is USB audio-class compliant, doesn't need any extra driver, and just plain works - I do confirm. These two commands make UMC204HD just work and auto-switch from built-in audio to external upon plugging in and from external to built-in upon unplugging: rcctl set sndiod flags -f rsnd/0 -F rsnd/1 -F rsnd/2 -F rsnd/3 rcctl restart sndiod I overprovision two more devices. With only rsnd/0 and rsnd/1 stuff doesn't work sometimes. Dunno why. Might be a bug. When I first plugged UMC204HD it didn't work. It seemed like a dead end. Then I recalled USB v3 is a known issue. I replugged it into a USB v2 port, and it's all good. I also asked-and-replied on it here: https://www.unitedbsd.com/d/1247-usb-audio-interface-for-bsd-any-recommendations/4