User Manual

40 Low Frequency Oscillators Dave Smith Instruments
Low Frequency Oscillators
LFOs are special-purpose oscillators that produce frequencies below the
range of human hearing. LFOs are typically used for periodic modula-
tion or changes in sound such as vibrato (periodic pitch modulation) and
tremolo (periodic volume modulation).
The Pro 2 provides four LFOs that produce a variety of waveshapes.
Although they’re classied as low-frequency modulation devices, they
can actually function at speeds that extend into the audible range for
extreme modulation effects. The LFOs can be free-running, reset by
keystrokes, or synced to the arpeggiator, sequencer, or MIDI clock.
Press any of the four LFO buttons to choose an LFO for editing.
To edit the same parameter on all 4 LFOs simultaneously, press and briey
hold one of the LFO selector buttons and turn one of the dedicated knobs (
Frequency,
amount, shape or destination). In this state, you can also use the soft knobs in the
OLED display to individually edit the same parameter on each LFO. To exit this mode,
press any of the LFO selector buttons.
Frequency Amount
Shape Destination
1
2
3
4
LFO
In addition to the front panel controls for each LFO, additional param-
eters are accessible through the OLED display.
Triangle
Shape SyncFrequency Amount
LFO Control LFO Dest
Frequency
LFO Shape
640
AMOUNT
SYNC