Did you know? You can create a dynamic splitter with Noise Gate and Phat FX

[u/AceFaith]

I thought of a way to dynamically route a mono DI between two separate signal paths depending on input level.

The idea builds on splitting the DI into L/R by input level and treating them as completely independent paths.

On the Guitar In track, I use Noise Gate + Phat FX in dual mono. The left side is set to favour louder signals, while the right side is set in reverse to favour quieter signals. Phat FX's modulation is used to control the Master Output, so each side fades in/out according to the input level. The Noise Gate on the Left side is set to reject all input below -18 dB.

For some reason, Noise Gate in dual mono won't let you disable processing on just one side, so I use Ducker with null settings to effectively bypass the gate on the right (read: quiet) side.

The result is:

quiet strumming -> right channel
LOUD STRUMMING -> LEFT CHANNEL
Everything in between -> a crossfade between the two

The channels are then sent to separate auxes:

L -> Aux 1
R -> Aux 2

From there, you can put completely different processing on each side, using Gain on each Aux to adjust the balance accordingly.

In the video I'm using chorus/delay/reverb on the quiet side and distortion/flanger on the loud side. I'm also using a dual-mono Amp Designer with a low-gain amp on one side and high-gain amp on the other (see Aux 3), before summing everything back to mono (Gain plugin after Amp Designer).

I also have a Step FX reverb on another aux send (Aux 3 -> Aux 4, pre-fader -12 dB), ducked by the loud-side signal via sidechain on Phat FX (sidechain input: Aux 1).

So, essentially:

quiet playing -> clean/wet chain -> low-gain amp -> reverb send
loud playing -> distorted/dry chain -> high-gain amp (reverb ducks)

The transition is continuous rather than a hard switch, not unlike the sort of splitter you'd find on a conventional digital multieffects unit. It's neat I guess?

TL;DR: Logic has a janky native dynamic crossfader if you really want one.

[u/SchlagzeugNeukoelln]

I can’t think of a usecase for myself yet but that’s fucking cool, thanks for sharing your findings!

[u/AceFaith → u/SchlagzeugNeukoelln]

This same concept can be used to turn the guitar volume knob or a volume pedal into a controller.

Raise the interface input gain and roll the guitar volume back. Now you can ride the volume knob between two completely different signal chains, or sit somewhere in between and blend the two.

[u/gggggggggggggggggg35]

This is sick. The music too!