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Chapter 2 ES1 30
Use the ES1 LFO
The LFO (low frequency oscillator) generates an adjustable, cyclic waveform that you can use to
modulate other ES1 parameters.
LFO parameters
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Wave knob: Rotate to set the LFO waveform. Each waveform has its own shape, providing
dierent types of modulation.
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You can choose the following waveforms: triangle; ascending and descending sawtooth;
square wave; sample & hold (random); and a lagged, smoothly changing random wave.
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You can also choose EXT to assign a side-chain signal as a modulation source. Choose the
side-chain source channel strip from the Side Chain pop-up menu in the upper-right corner
of ES1.
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Rate slider and eld: Drag to set the speed—the frequency—of the LFO waveform cycles.
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If you set values to the right of 0, the LFO phase runs freely.
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If you set values to the left of 0, the LFO phase is synchronized with the tempo of the host
application—with phase lengths adjustable between 1/96 bar and 32 bars.
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When set to 0, the LFO outputs at a constant, full level, which allows you to manually control
the LFO speed with your keyboard’s modulation wheel. This can be useful, for example, if
you want to change the pulse width by moving your keyboard’s modulation wheel. You
would choose the pulse width as the LFO modulation target, using a button in the left
router column, and set the modulation intensity range using the Int via Whl slider.
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Int via Whl slider: The upper arrow denes the intensity of LFO modulation if the modulation
wheel is set to maximum. The lower arrow denes the amount of LFO modulation if the
modulation wheel is set to 0. The distance between the arrows—shown as a green bar—
indicates the range of your keyboard’s modulation wheel.
You can simultaneously adjust the modulation range and intensity by dragging the green
bar, thus moving both arrows at once. Note that as you do so, the arrows retain their relative
distance from each other.