


SOS Reviews Editor Matt Houghton replies: Well, the first thing to say is that there's no need to resort to another host or another plug-in - between them, Pro‑Q 3 and Reaper can do what you want. Has anyone done this before by any chance, or to any other FabFilter plug-ins that might be equivalent? Or otherwise, is there a way to do it in Adobe Audition with FabFilter Pro‑Q 3? Failing that, are there any free EQ matching plug-ins available that can do the job more easily? Then I set up FabFilter's side-chain to accept channels 3+4, then route the source track to channels 3+4. I load FabFilter onto the track I want to alter. I'm having real difficulty routing a source track to FabFilter's side-chain using Reaper.

Screen 1: Pro‑Q 3 must be instructed by Reaper to treat tracks 3+4 as an external side-chain signal - and you do that in the 'Plug-in pin connector' window for the instance of Pro‑Q 3 in question.
