FabFilter User Forum

Pro-Q3: Sidechaining in Reaper

Hi,
sidechaining in Reaper is normally done by increasing the channel-count of a track. In case of a regular stereo-signal this would be a change from 2 to 4 channels.

Unfortunately Pro-Q3 switches the plugin from Stereo to Quadro-Mode when there are more then 2 channels on a track. The processing of channel 3/4 is also activated by default which can be confusing when track 3/4 are used later.

Is there a way to use the sidechain in reaper while keeping Pro-Q3 in stereo mode?

Thanks in advance!

Chris — Dec 31, 2018

Hi Chris,

Yes! In recent Reaper versions, there's an option for this. In the plug-in connector, click on I/O, then set "Request VST3 bus channel count" to Stereo.

Cheers,

Frederik (FabFilter) — Jan 2, 2019

Works perfectly. Thanks! :)

Chris — Jan 2, 2019

On a related note, on prerelease Reaper (and I think current) and Pro-Q 3, other instances of the plugin don't show the channel name in the sidechain spectrum menu.

Toby — Feb 21, 2019

Hi Toby,

You should use the VST3 version of Pro-Q 3 in Reaper to show the track names in the list of external spectrums.

Cheers,

Frederik (FabFilter) — Feb 21, 2019

Thanks for the tip on the VST3 bus channel request function.

Airon — Feb 21, 2019

GREAT TIPS! I'm set, thanks.

Toby — Feb 25, 2019

Hello! The plugin doesn't show me the external sidechain button on the eq node, I have no idea what I'm doing wrong. . . Help me please

NEC — Mar 30, 2023

Hi NEC,

Which host are you using?

Cheers,

Frederik (FabFilter) — Mar 30, 2023

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