How to side chain?

Hi, I’m almost a complete newbie on music production, but I remember many years ago when I dabbled with Reason, I was able to do drive a compressor with the kick on the drumpad… Now, sure that was the kind things Reason was made for, so it was very easy to do.

In Zrythm, I have no idea. I suppose the concept would be to route the compressor threshold parameter to a compatible port, but… I can’t find any.

As having a compresser driven by a drum kick is common trick, I suppose there is a way to do it in Zrythm, so if anyone knows, I’d be glad to know it :slight_smile:

Hmmm… I saw the documentation about “aux sends” and also about sidechaining…
I am actually using the lsp plugins. But wether the plugins are lv2 or vst3, the sidechain compressor on the bass never shows up when double clicking on the drums aux send (pre-fader or post-fader) slot.

I later learned that the version 1.2.22 of the plugins had bugs with sidechain… which was the version I was using. I tried 1.2.23, and even 1.2.19… to no avail.

Surely I am missing something…

You can either use the channel aux sends if there are any sidechains exposed by the plugin, otherwise you’ll have to make direct connections if for some reason the sidechain inputs are not shown in the aux sends section. See Connections - Zrythm v2.0.0-DEV documentation for both approaches.

Thanks Alex, it’s just not working. I compiled the git cloned version, and also the source tar.gz, both on two different machines (both fedora 42 workstation, so GNOME, pipewire, wayland)… sidechaining ports don’t get exposed.
Trying this through carla patchbay track reveals that the sidechaining from LSP is working fine… weird, having just one audio input makes the effect pretty dull.

Tried sidechaing in Ardour 8, works fine.

Oh well, I’ll wait for the v2 then. I don’t know how much that sort of things can be influenced by the toolkit.

As a side note, despite loving GNOME, QT is just a better toolkit overall IMO, so smart move moving onto that. Overall zrythm was pretty pleasant to use. I wonder how much refinement will bring the V2. Nice job anyway, very promising. And be careful about the meson dependencies version requireements, some are… very surprising (carla => 2.6, or Jack < 1.0) :winking_face_with_tongue:

See you around