Should not depend on PulseAudio.Like veth for network, of v4l2loopback for video, it should create virtual audiocard from which I can record everything that is played.
How do I create virtual ALSA device from which I can record everything that is played?
linux;audio;alsa
Load the kernel module: modprobe snd-aloopUse plughw:CARD=Loopback,DEV=0 device for recordingUse plughw:CARD=Loopback,DEV=1 device for playing (or vice versa).