Configure loopback audio in Linux with Pulseaudio: Record what you hear

Start your recording software and start monitoring.

Audacity record loopback audio

1. click to the right of the microphone where it says “click to monitor”.

2. start

    pavucontrol
   

3. click pavucontrol Recording tab
4. Under your desired recording input, select “Monitor of Built-in XXX” where XXX is the playback device you wish to monitor.