[pulseaudio-discuss] Virtual device in Pulseaudio

[pl bossart]

> My question is: is it possible to create a virtual device in
> Pulseaudio which has one input and one output and transfers stream
> from its input to the output? I tried different solutions including
> module-loopback (no success) and module-pipe-sink/source (gstreamer
> wasn't able to stream through it due to very low speed as I guess) but
> I have no success at all.

Use module-virtual-sink, add your code for post-processing where
indicated by the comments. It was written precisely for this type of
use cases.