Sequential Prophet Rev 2, User Manual

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20 21 Oscillators Sequential Prophet Rev2 User’s Guide Oscillators
33 . Dump Scale —
Transmits the currently active alternative tuning scale
in SysEx format via the selected MIDI port. (See item 11, “MIDI Sysex
Cable.”) Dumped scales will load back into the same location when
imported back into the synth via MIDI.
34 . Dump All Scales
—
Transmits the entire set of 16 alternative tuning
scales in SysEx format via the selected MIDI port. (See item 11, “MIDI
Sysex Cable.”).
Oscillators
Oscillators provide the raw building blocks of the Prophet Rev2’s sound
by producing
waveforms
, each of which has its own inherent sound char-
acter based on its harmonic content. The Prophet Rev2 has two oscilla-
tors, plus a sub oscillator and a noise generator, per voice.
Oscillator 1 and 2 are capable of generating sawtooth, sa trian-
gle, triangle, and pulse waves. You can vary the width of any of these
waveshapes using the
shape mod
parameter. This provides a great variety
of different waveshapes and timbres.
The oscillators on the Prophet Rev2 are extremely stable. To emulate the
random pitch drift and oscillator instability of vintage instruments, use the osc
slop
parameter to dial in as little or as much drift as you like.
OSC 1 FREQ
SYNC
FINE TUNE SHAPE MOD SUB OCTAVE
OSC MIX SHAPE MOD
NOISE
OSC SLOP
1 2
SHAPE
Sawtooth
Saw+Tri
Triangle
Pulse
SHAPE
Sawtooth
Saw+Tri
Triangle
Pulse
OSC 2 FREQ FINE TUNE
OSCILLATORS
The Oscillator section
Oscillator 1 can be hard-synced to Oscillator 2 for harmonically-complex
sounds when modulated. Both oscillators feature a
fine tune
knob for
detuning and thickening sounds.
You can force either or both of the oscillators to start its wave cycle from its
beginning (its zero crossing) each time you press a note on the keyboard by setting
note reset
to
on
in the
misc parameters
menu. This is can be useful for creating sounds
that have a very consistent sound each time you trigger them.
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 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, Sa 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
modifies 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.