Sidechain EQ

[OfficialDAPT]

In FL I use Fruty peak controller linked to parametric EQ 2, works like a charm.

What does Fruity peak controller do, is that a limiter?

No, it basically just send a signals to whatever you have linked it with, so each time my kick/snare hits, it sends a signal to the EQ, and the eq ducks at whatever freq I've set it to.

But how do you make the low frequencies of the EQ duck by just having a signal sent to it? Is there an envelope on the EQ that tells it what to do when the kick is sent there?

[Triphosphate]

Assuming you use FL... right click on the parameter you want to link... in this case an EQ band's amplitude... and click "link to controller" and select the Fruity Peak controller as the parameter... if say you wanted to link it to a low cut and therefore don't have an amplitude parameter you link in to the frequency... so when the kick hits the low cut is pushed momentarily to where you want it, and when no sound is coming through the peak controller it drops back to its base value, which in this case is 0 (or close enough to it). You can also make the peak controller map inversely to a parameter (very handy). Just remember to unmute the peak controller, it comes muted by default, and you're probably going to have to play with the peak controller's base, release and level.

[Sharmaji]

in logic just set up a sidechain compressor and make its internal circuit act as a hipass filter, then sidechain it to whatever.

[Sonika]

How would you make a compressor act as a HP filter?

[xbubbax]

put the threshold to -60db and the ratio to 20:1

[fv2k]

Autofilter has a sidechain, why not use that?