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The Waves SSL E-Channel Strip and G-Channel Strip are some of the most popular plugins
for mixing, and for good reason. They sound great, they can also be used as an all-in-one
effects processing unit. One thing that might be overlooked when first using the plugins
is the internal routing options. These options change the order of the various sections of
the plugins.
There are three sections: one section is the filters section, which consists of a high
pass and low pass filter. Another section is the 4-band equalizer, and the last section
is the dynamics section which consists of the compressor and expander/gate. Internal
routing options can be used to change the order of these sections such as putting your
equalizer before you dynamics section. Or put you dynamics section before you equalizer.
You can also use the internal routing options to do more advanced techniques such as de-easing.
Why don’t we get to an example and I can show you all the different options.
Here I have a multitrack drum recording with consists of several different microphones
on the drum kit. I have kick drum over here, snare drum, toms, overhead and a couple room
mics. Let me go ahead and play it back so you have an idea of how it sounds.
[drums]
On some of the tracks I’ve inserted the E-Channel Strip and on other ones I’ve inserted
the G-Channel strip. Because the routing is a little bit different on each of these plugins.
First I’ll start off with my kick drum track. Bring up the E-Channel Strip. I’ve got it
in it’s default settings, and the default routing is to first start out with the dynamics
section then go into my filter section, and finally the EQ section. What I’m doing here
is just a little bit of compression and then the expander/gate, then I’m going into the
filter section which has a high pass starting around 40 Hz, and then a low pass around 10k.
And I have a 4-band equalizer, boosting a little bit around 2k and up around 5k to give
it some snap and punch. I’m rolling off around 200 and 300 Hz to take away the boxiness
and then boosting finally around 60 Hz just so I can kind of fill out the bottom end of
my kick drum. So let’s here how that sounds.
[kick drum]
On the external microphone I’m still using the E-Channel, but i’ve clicked on the split
button right here. What this is going to do is move the filter section in front of the
dynamics. This can be done if you don’t want your really low end signal triggering
the compressor. This is a popular way to use the plugin, especially for things like kick
drum or bass where in the first situation the compressor was sensitive to the really
low frequencies, but by putting the filter in front, now the compressor and gate are
no longer listening to those really low frequencies that you’re going to roll off anyways. So
let’s listen to this.
[toms]
And just to demonstrate that the compressor is not listening to it, if I roll it off,
it’s no longer listening. I’m doing a similar thing on the sub kick. Where I had
the split engaged. And that’s just putting the filters before the dynamics section.
Next let’s get to the G-Channel I’ve got inserted on the snare drum. Again I’ve got
the split button engaged. Even though it’s the G-Channel strip, it’s gonna do a similar
sort of thing. I’ve got the filters going before the dynamics and thing going into the
equalizer.
[drums]
On my snare bottom mic I’ve decided to use this channel out button. What this channel
out button is going to do is put the equalizer in front of the dynamics section. I’ve also
got the split engaged which also puts the filters in front of the dynamics section.
So let’s listen to this one.
[drums]
Just to demonstrate it, if I roll everything out, you’ll see that the compressor is not
doing as much here, meaning that the equalizer — the signal I’m taking out — is in
front in fact of the compressor. Now you see the compressor doing more work.
I’m doing a similar sort of thing with the E-Channel. I’ve got the channel output engaged
so that the equalizer section is before the dynamics section. Same sort of thing.
Next let’s go over here to the overhead and room mics and see what’s going on with
them. I’ll start out with this pair of room mics. I’ve got the G-Channel going, and
what I’m doing, is I’ve got the filter dynamics sidechain engaged. For the overheads
and room mics I’m going to be doing some side-chaining. What I’ve got when you engage
this one is you put the filter section in the sidechain of the compressor. The filters
then are no longer affecting the actual signal that’s gonna pass through, but it’s affecting
a signal that’s separated out and that goes into the dynamics section. What I want for
these room mics is my compressor to be heavily compressing this signal, however I don’t
want it to be activated by the kick drum. So what I’ve done is increase the filter
to 350 Hz, so that’s gonna block out all the low end so my compressor isn’t listening
to the low end. However I still want those signals, those frequencies in my signal to
be present in the actual output. And that’s what you can do by moving the filters into
the sidechain of your compressor. So let’s take a look at this.
[drums]
So you can hear if I disengage the button, now the compressor is responding to the kick
drum and the actual output signal has been rolled off below 350Hz. When I engage this,
then the compressor isn’t doing anything for the kick drum it’s mostly just listening
to the snare. You have to be sure not to engage the split button because the split button
will put it back before the dynamics section. But this room mic, again, I’m just using
the split button so that I’ve put the filters below the dynamics section. Nothing too advanced
there.
Finally with my overheads, let’s bring this up. On the E-Channel strip the side chaining
works a little bit different. No matter what, when you click on this button, you’re going
to put the equalizer in the sidechain of the compressor. You can engage the split button
and the split button will put the filters before your dynamics section and out of the
path of the sidechain. So in this case the filters are affecting the actual audio that’s
passing through the entire plugin. I’ve taken it out, now the filters and the equalizer
are both in the sidechain path and so basically the input signal what you’re hearing is
only the input signal being compressed. You’re not hearing any of the equalizer affecting
it.
So let’s look at what I’m doing with the equalizer. What I want to do is use it as
a way of getting rid of the harsh components of the cymbals in my overheads. So when there’s
a loud harsh signal, I want the compressor to kick in. This is what you would typically
use a de-esser for on vocals. And because I don’t have any vocals here, I wanted to
show you how to use it. This would be a smilier routing that you would want. So if we actually
dis-engage this, you’ll hear what the signal, the equalizer section is doing. So I’m cranking
up the harsh parts of my signal around 3k and these high frequencies as well. I’ve
rolled out the low end here and here and here as well. So now the compressor is listening
for the harsh parts and when it’s extra harsh it’s decreasing the volume.
Again, you can use these bypass buttons to switch out the equalizer or the compressor
if you’d like.
And those are the main setting of the internal routing of the SSL plugins. I’ll go ahead
and play you out the track so you can hear what’s going on, maybe bypass all the plugins
and bring them back in, give you a better idea.