10.6

Table Of Contents
234Logic Pro Instruments
Note: Don’t confuse this filter frequency modulation with the oscillator FMfeature
(oscillator1 is modulated by oscillator2). If oscillator1 is frequency-modulated by
oscillator2, it does not influence the sine wave signal used to modulate the cutoff
frequencies. See Use frequency modulation in Logic Pro ES2.
Filter2 can also be driven to self-oscillation. If you set a very high resonance value, it
produces a sine wave. This self-oscillating sine wave distorts at the maximum resonance
value. If you mute all oscillators, you’ll only hear this sine oscillation. By modulating the
cutoff frequency, you can produce effects similar to those produced by modulating the
frequency of oscillator1 with oscillator2.
Modulate filter FM in ES2
1. In Logic Pro, set up a modulation routing as follows:modulation target LPF FM.
A sine wave, at the frequency of oscillator1, is always used as the modulation source.
Given this default assignment and the direct relationship between the filter FMintensity
and oscillator1 frequency, you can set up a second routing to modulate Oscillator 1
pitch.
2. Set up a modulation routing as follows:modulation target Pitch 1, source LFO1.
3. Adjust LFO settings.
ES2 amplifier parameters
Use the Logic Pro ES2 dynamic stage
The dynamic stage of a synthesizer defines the level, or perceived volume, of a played
note. The change in level over time is controlled by an envelope generator. For more
information about envelope generators, see Synthesizer basics overview.
ENV3 is hard wired to the dynamic stage of the ES2—it is always used to control the level
of each note. See Logic Pro ES2 envelopes overview.
The dynamic stage can be modulated by any router modulation source.
Modulate the ES2 dynamic stage (Amp)
1. In Logic Pro, set up a modulation routing as follows:modulation target AMP, source
LFO1.
2. Make sure that via is set to Off.
3. Adjust LFO settings.
A tremolo effect is created, with the level changing periodically, based on the current
LFO1 Rate value.