I'm not aware of any plugins, but in case anyone is curious about how to replicate that setup on Linux systems with PulseAudio, you can create virtual outputs w

I'm not aware of any plugins, but in case anyone is curious about how to replicate that setup on Linux systems with PulseAudio, you can create virtual outputs with: pactl load-module module-null-sink \ sink_name=Device_Name \ sink_properties=device.description=Device_Name If some program filters out output monitors from its input list, you can usually use pavucontrol to force-change it. Or, you can create a linked virtual source: pactl load-module \ module-virtual-source \ source_name=VirtualMic \ master=Device_Name.monitor \ source_properties=device.description=VirtualMic Then in OBS settings you can set up the virtual device as Monitoring Device. I took the commands from one of my side projects, maybe someone will find other parts of it interesting: https://github.com/pzmarzly/mic_over_mumble https://github.com/pzmarzly/mic_over_mumble