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Chapter 12 Retro Synth 225
FM oscillator parameters
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Vibrato knob: Rotate to set the amount of vibrato (pitch modulation).
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Modulation knob: Rotate to choose an FM amount modulation source, and to set the
modulation intensity.
•
FM (Amount) slider: The carrier waveform is a simple sine wave. Drag to adjust the level of this
basic tone.
•
FM/Harmonic switch: Switch to control the harmonic/inharmonic content of your sound with
the LFO or Filter Envelope.
•
The left switch position lets you use the LFO or Filter envelope to modulate the FM
(Amount).
•
The middle switch position lets you use the LFO or Filter envelope to modulate the FM
(Amount) and Harmonic content at the same time.
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The middle switch position lets you use the LFO or Filter envelope to modulate the
Harmonic content.
•
Harmonic/Inharmonic sliders: Drag the Harmonic and Inharmonic sliders to precisely change
the levels of these sonic elements, and therefore, the tonal color of your sound. Technically,
you are changing the tuning ratio between the carrier and modulator oscillators, resulting in
harmonic or inharmonic content becoming more or less audible.
Note: The tuning ratio can change signicantly when you adjust the (Wave) Shape slider,
so avoid using it if making a subtle alteration to the harmonic or inharmonic content of
your sound.
•
(Wave) Shape slider: Drag to modulate the carrier waveform. This control and the FM slider
interact as you adjust either, resulting in a range of tones with more or less harmonic/
inharmonic content.
•
Mix slider: Move to crossfade (set the level relationships) between the modulator and
carrier oscillators.