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Sometimes it's really useful to be able to assign a MIDI controller to a parameter. Fortunately, EFM1 has a built-in way to do this really easily, especially for the most important parameters. So they've got the Assignment page down here where you can assign the FM intensity to a controller, and you can also assign the vibrato to a controller. So by default they have this FM intensity assigned to the mod wheel, so let's check that out. So if I'm playing a note and I open up the mod wheel, you can hear the FM intensity is increasing.
Now I'll close it back down. Notice you don't see the knob move. This big knob in the center, that didn't moved at all, but you could hear it changing. That's what happens with CC assignments; you hear it, but you don't see it. The other thing to think about here is I've got this Ctrl FM Amount. That's essentially scaling the amount that the mod wheel is going to modulate the FM intensity. So right now it's set to 0.20, and this is on a scale from 0 to 1. So what happens if we increase that? I will set it to 1. So now when I play a note and I open the mod wheel, you can hear I have a much greater range of intensity.
(music playing) So sometimes you want to limit it though; you don't want that full range if you have a control or your mod wheel. You want it just be a subtle amount that you are affecting it. Then you can control out here. So maybe I want it 0.10. (music playing) So as I open and close the mod wheel, you can hear a slight adjustment, but it's subtle; it's not that much intensity difference. Let's say I wanted to assign this to a different controller. I don't want this to be the mod wheel. So what I can do is go to this menu here and I can choose it from this long list.
The only problem is that I have to know on the keyboard controller what the continuous controller number is for the slider or knob that I want to assign it to. So the keyboard I'm using right now, which is an Axiom Pro 61, I'm not sure what CC number the sliders are. Fortunately, if I go up to the top, I've got this Learn button. This will just learn whatever slider or knob that I move. So I click on that and I move the slider on my MIDI controller and I can see that it did something. And so it's telling me here that the slider that I moved is continuous controller number 74. And sure enough, when I play a note and I move that slider, I can hear the FM intensity adjusting.
And if I want to increase the intensity, I can adjust the scale here. So just so it's obvious, set it to the full amount here, and I'll move the slider. Now I can cover the full range of FM intensity. So I can do the same thing for the Vibrato control as well. By default, it isn't assigned to anything. So I can go here and again if I know my CC number for a slider knob in my controller, I can just find it in this list or sometimes it's easier to learn it.
So I hit Learn. I'll move a different slider on my controller and there we go. Now I've got Vibrato controller. (music playing) All right! So if I've got the slider down, no Vibrato. Bring up the slider, it's increasing the intensity of the vibrato. So it's a very useful feature and makes it so that if you are good at playing the keyboard you can be more expressive, because you can be playing a melody and then adjust the sliders and adjust the FM intensity and vibrato all at once, so it definitely makes for a more dynamic performance.
So now that we have things set in EFM1, let's take a look a musical example and hear EFM1 in action.
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