Dave Smith Instruments PROPHET 12 DESKTOP - Manual (Page 26)

14 Oscillators Dave Smith Instruments
Pitch: C 0…C 10— Sets the base oscillator frequency over a 10-octave range,
from 8 Hz to 8kHz, stepping in semitones. C3 is middle C, the first octave is 0
(C0, C#0, etc.), the second octave is 1 (C1, C#1, etc.), and so on.
Note: The global Master Tune settings affect the pitch of all oscillators. See
Global Settings on page 8 for more information.
Fine: -50…+50— Fine tune control with a range of a quartertone up or down.
Zero is centered. Steps are in cents (50 cents = 1/2 semitone).
Key Follow: Off, On— When Key Follow is on, the oscillator tracks the note
data received via MIDI. When off, the oscillator plays at its base frequency
setting, though the pitch may be affected by modulation from other sources.
Wave Reset: Off, On— When Wave Reset is off, the Prophet 12’s oscillators
are free running, which is typically how analog synths behave. That is, the oscil-
lators are running whether a note is being gated on or not. When the amplifier
envelope is set for a fast attack, this can cause a soft, but detectable, pop or click
at the beginning of a note because the note might be gated on at a point in the
wave’s cycle other than a zero crossing. The first cycle to play might be trun-
cated. For some sounds, like monophonic basses, this may actually be desirable.
It adds a bit of randomness to the attack that can make it sound, for lack of a
better word, more organic. When Wave Reset is on, the wave is always reset to
zero—the start of its cycle—when a note is gated on.
Sync: Off, On —Turns oscillator hard sync on. Sync utilizes pairs of oscillators
to force one oscillator (the slave) to restart its cycle every time the other oscil-
lator (the master) starts a cycle. This provides a way to create more complex,
harmonically rich shapes from simple waveforms.
Oscillator 1
Oscillator 2
Oscillator 1
synced to
Oscillator 2