20 Oscillators
Dave Smith Instruments
Oscillator Parameters
Osc Freq: Sets the base frequency of Oscillator 1 or 2 over a 9-octave
range from 16 Hz to 8KHz (when used with the Transpose buttons). Adjust-
ment is in semitones.
The global master coarse and master fine settings affect the pitch of the oscilla-
tors. See “Global Settings” on page page 14 for more information.
Fine Tune: Fine tune control with a range of a quartertone up or down.
The 12 o’clock position is centered. Steps are in cents (50 cents = 1/2
semitone).
Shape: Sawtooth, Sawtooth + Triangle, Triangle, Pulse —This button
selects the waveshape generated by the oscillator. You can also turn the
oscillator off by selecting no waveshape.
Shape Mod: Changes the “pulse” width of the selected waveform, which
modies its harmonic content and timbre. To generate a square wave
when pulse is selected as the waveform, set this parameter to 50.
Applying waveshape modulation using a low frequency oscillator or other
modulation source in the mod matrix is a great way to add movement and thickness to
a sound.
Sync: Off, On—Turns Oscillator 1 hard sync on. Sync forces Oscillator 1
(the slave) to restart its cycle every time Oscillator 2 (the master) starts
a cycle. This provides a way to create more complex, harmonically rich
shapes from simple waveforms—especially when the frequency of Oscil-
lator 1 is set to a different interval than Oscillator 2.
Oscillator 1
Oscillator 2
Oscillator 1
synced to
Oscillator 2
Oscillator hard sync
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