My Panasonic RP-HT 161 stereo headphones were connected to the desktop through a mini-phone jack to USB adapter. When I used a Zoom test it told me the headphones worked. During the Zoom meeting, they didn't work.
Over the past several years I've used a pair of Creative Pebble speakers. I finally realized that while they're okay for streaming background music they are horrible for voice, distorting it so it's unintelligable; I'm replacing them this weekend with a pair of PreSonus Eris E3.5-3.5" near field studio monitors. While this change will allow me to hear videos, for a Zoom (or Jitsi) meeting they'll feed back to the Marantz Pro MPM-1000 condensor microphone, so I want to use headphones. Pavucontrol didn't see the headphones using the USB connection. Connecting them to the output jack on the rear of the desktop pavucontrol the Output Devices tab shows ADA ATI HDMI (Digital Stereo [HDMI 2] Output unplugged), Line Out (plugged in) and Headphones (unplugged) and the Configuration tab shows HD-Audio Generic (Analog Stereo Duplex). The Zoom meeting is being rescheduled but I need to fix the headphone issue. What might be the issue here? TIA, Rich