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Let's check out the lowpass filter that's in ES E. It's very similar to what we saw with ES M in that it's a lowpass filter and it cuts out the high frequencies and we can adjust the resonance as well. So first thing I'll do is adjust the cutoff. So I'll play a note and I'll bring down the cut off from its open position. (music playing) So as I bring this down, you can hear that it's cutting out high frequencies. If you look at the waveform, it's becoming more simplified and more like a sine wave as the harmonics get cut out.
I can filter it all the way down where you really can't even hear it anymore, or I can open up the filter. (music playing) The resonance control, what that's going to do is it's going to boost the area around the cutoff point. It's going to be a little bump in the EQ, and that's going to give it a little bit of a squelchy sound and make it stand out at the cutoff points. So I'll increase the amount of resonance and I'll adjust to cutoff. (music playing) So you can really hear that in action.
The other way to think about it, or to visualize this, is take a look at the EQ. So I'll open up the Logic EQ, and what I can do is engage the Analyzer here. So I'll do that and I'll set it to High Resolution and adjust the amplitude scaling here, just so it's a little bit more clear. What I can do is, over to the right, I can engage the lowpass filter, which is this button right here. Then I can adjust the cutoff right here. So I'll do that. (music playing) So you can hear, this is cutting out the high frequencies.
You can see that happening and hear it happening. Just like what was happening with ES E. To show you sort of how resonance looks like, I can increase the amount here. Notice as I adjust the bandwidth on this lowpass filter that I get this EQ bump right out at our cutoff point. So that's exactly what a resonance is. (music playing) So wherever I have my cutoff, it's going to emphasize that area of the frequency spectrum. (music playing) So after we have our filters set, the next thing we can do is use the envelope to both shape the filter and to also shape the amplitude of the amplifier section.
So once we have the filter set in a position where we like how it sounds, we can explore the envelope, which is going to control both the envelope of the volume of the sound--so in the amplifier--and it can also control the cutoff of the filter.
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