+ pedalboard. The rationale for pre-processing with I/O plugins is that it's a
+ more lightweight way to do it as compared to busses.
+</p>
+
+<p>
+ Another use case would be loading an instance of the NDI Input plugin as a
+ pre-processing plugin to be able to capture and mix sources from NDI devices,
+ or loading an instance of the NDI Output plugin to send audio from Ardour over
+ IP to a receiver for broadcasting.
+</p>
+
+<p>
+ It's also possible to use the post-processing section to load plugins for room
+ correction or signal analysis (VU meters, spectrum analyzers etc.).