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Chapter 14 Ultrabeat 364
Use Ultrabeat LFOs
Two identical LFOs are available as modulation sources in the mod pop-up menus.
The LFO (low frequency oscillator) signal is used as a modulation source. In an analog synthesizer,
the LFO frequency generally ranges between 0.1 and 20 Hz, which is outside the audible
frequency spectrum. Therefore, this type of oscillator is used only for modulation. The speed of
the LFO in Ultrabeat can reach up to 100 Hz, which aords a number of possibilities that analog
synthesizers don’t oer.
Sync and free buttons LFO 1/LFO 2 buttons
On/off button
Ramp knob
Cycles knob
Waveform display
Waveform shapeRate knob
LFO parameters
The parameters for both Ultrabeat LFOs are described below. You can adjust LFO 1 and LFO 2
independently of each other.
•
LFO 1 and 2 buttons: Click to select the corresponding LFO, allowing independent parameter
adjustments for each.
•
On/o button: Turn the selected LFO on or o.
•
Sync/free buttons: The LFO speed (Rate) can be synchronized (Sync) to the host application
tempo or set independently (Free). Click either button to activate the corresponding mode.
•
Rate knob: Rotate to set the speed of the LFO. Depending on the Sync/Free setting, the rate is
displayed in Hertz or rhythmic values—the latter when tempo synchronization is active. Rates
range from speeds of 1/64 notes to a periodic duration of 32 bars. Triplet and punctuated
values are also available.
•
Waveform shape slider (and display): Drag to determine the shape of the LFO waveform.
•
Cycles knob and eld: Rotate to set the number of times the LFO waveform repeats.
•
Ramp knob and eld: Rotate to set the time it takes for the LFO modulation to fade in or fade
out. The Ramp value is displayed in milliseconds.
•
Rotate Ramp to the right to set the LFO fade-in time.
•
Rotate Ramp to the left to set the LFO fade-out time.
•
At the middle position, Ramp has no eect on the LFO.