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In this video, I'll be demonstrating how you can use a kick drum as a side
chain input to a compressor. This compressor is going to be affecting the
volume on a separate track, specifically a synth base. This is a very
popular technique in electronic music, where what you want is your synth
base to follow the groove of the drum. Also if you over exaggerate the
compression, you'll get a very nice pumping effect. Let me go ahead and
play you back the track that I've got so you can get an idea about how it
sounds. This is without any compression going on.
[music]
So right now the base is pretty boring. What I want is for it to follow the
groove, have a little bit more excitement going on, and sync well with the
drums. So if I play it back right now, you'll here there's not a whole lot
going on.
[music]
What I want is that very popular pumping effect. So what I'm going to do is
bring up the compressor on my synth track. I'll just be using the stock
digi-design compressor. Now, I'll send some of the signal from my drums
over to this compressor. I'll just find a bus that I'm not using, bring up
some volume in it. Select "pre", that way if I do any solo, muting, or
changing of this fader that is not going to affect the signal that's going
into my compressor. Next, what you have to do is go over to this key input
on your plug in, find the bus that you selected and bring it in.
Now how this works is you have your drum signal being sent over here to
your compressor. So the compressor's going to be listening to the signal
from the drums. Depending on that signal it's going to decide whether it's
going to compress or let the signal pass through. Next thing that I'm going
to show you is you have to select this key input right here for side chain.
Now what's going to be happening is it's listening to the drums. You have
this "audition" button so you can listen to the drums through this track
and then if I solo it, now I'm only listening to the signal on this track.
You can focus on the drums and then set your threshold and attack and
release based on that. So, let me pay it back.
[music]
What you should hear is all the instruments and my drums are in place
there. What I'm going to use is this low-pass filter that's high cut. What
I'm going to do is bring down the frequency until basically only the kick
drum is coming through.
[music]
Next it's just a matter of switching this back so now I'm listening on this
track through the synthesizer and playing around with the threshold,
attack, and release until I get a nice pumping effect.
[music]
At this point it's probably a good idea to bring back the other
instruments. So now I can set the attack and release time so that it
grooves well with the drums.
[music]
One thing you can do is play around with the ratio. If you want the effect
to be more dramatic or less dramatic, just back off the ratio a little bit.
That's all there really is to it.
It's a matter of setting up the side chain, keying in on just the base
drum, and then playing around with your effects and the context of your mix
so you find the effect to be sitting well with all your other instruments.