3.5

355MainStage Instruments
FM oscillator parameters
• Vibrato knob: Rotate to set the amount of vibrato (pitch modulation).
• Modulation knob: Choose a modulation source (LFO or Filter Envelope), and set the
modulation intensity. This modulates the target chosen with the FM/Harmonic switch.
• FM (Amount) slider: The carrier waveform is a simple sine wave. Drag to adjust the level
of this basic tone.
• FM/Harmonic target switch: Choose a modulation target—FM (Amount), Harmonic, or
both—for 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.
• The right switch position lets you use the LFO or Filter Envelope to modulate the
Harmonic content.
• Harmonic/Inharmonic sliders: 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. This parameter is also available as the Wave
Variation (FM Harmonic) real-time modulation target. See global and controller settings.
Note: The tuning ratio can change significantly 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.
• Shape slider: 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: Crossfade (set the level relationships) between the modulator and carrier
oscillators.