10.6

Table Of Contents
292Logic Pro Instruments
Logic Pro ESE LFO parameters
The LFO (low frequency oscillator) generates a cyclic waveform that is used to modulate
the ESE waveform. The behavior and effect of the LFO depend on whether a sawtooth or
pulse wave is selected.
If Wave is set to sawtooth, the LFO modulates the frequency of the waveform, resulting
in a vibrato or siren effect—depending on the LFO speed and intensity.
If Wave is set to a pulse wave, the LFO modulates the waveform pulse width—pulse
width modulation (PWM).
LFO parameters
Vib/PWM knob: Define the intensity of LFO modulation.
Speed knob: Set the frequency of LFO modulation.
Note: When the pulse width becomes very narrow, the signal sounds as if it is being
interrupted—“breaking up.” Given this potential artifact, set the PWM intensity with
care. Set the Wave parameter to the 12 o’clock position (50% rectangular) for pulse
width to attain the maximum modulation range.
Logic Pro ESE filter parameters
ESE includes a lowpass filter that lets you contour the output from the oscillator.