The Controllers Menu; Controllers > Tempo; Controllers > Lfo (A/B) - Fractal VP4 Owner's Manual

VP4 OWNER'S MANUAL

The Controllers Menu

The Controllers menu contains Internal Controllers provided for use as
modifier sources. It also provides access to preset Tempo settings.
To view or edit these Internal Controllers:
 Load the desired Preset
 Press Home, and then press Page Right six times to CONTROLLERS.
 Press ENTER to open the Controllers menu
 You can page left and right to access Tempo, LFO, Envelope
Follower, ADSR (Envelope Generator), Sequencer, and
the Modifiers overview for the current preset.
 Press HOME or EXIT at any time to exit the Modifiers menu.
 If you want to save your Controller changes, save the entire Preset.
Controllers > Tempo
The Tempo page allows you to view or change the tempo, change tempo
settings for the current preset, and turn on a metronome to use for practicing.
Tempo - Sets a specific tempo such as 90 beats per minute (BPM).
TIP: While you're on this page, the ENTER key allows you to tap the desired
tempo. The Tap Tempo feature has two modes: "AVERAGE" – which results in
smooth changes over multiple taps and "LAST TWO", which sets the tempo
instantly after just two taps. You can choose the desired option in SETUP >
Global Settings > Tap Tempo Mode.
Tempo To Use - Determines how the VP4 behaves when the preset loads.
The choices are:
◽ GLOBAL TEMPO: The Global Tempo value is a system setting independent of
any preset or effect. When you load a preset with this setting, the tempo does
not change from whatever it was previously.
◽ PRESET TEMPO: When you load a preset with Tempo To Use set to "PRESET,"
the saved Tempo value takes over.
(Note: The Global Tempo remains set in the background and will be used when
you load a different preset with "Tempo To Use" set to "GLOBAL.")
Metronome - Adjusts the level of a built in metronome, handy for practicing.
MODIFIERS & CONTROLLERS
Controllers > LFO (A/B)
An LFO (Low-Frequency Oscillator) generates a slow, repeating signal that can
modify various aspects of a sound. Common examples include the pulse of
a tremolo, the sweeping motion of a phaser, or the random filter effect heard
in Frank Zappa's "Ship Ahoy." The Internal Controller LFO can be assigned as
the source for any modifier, enabling you to craft a wide range of interesting
effects. It offers the following settings:
Rate, Tempo – You can manually set the rate in Hertz, or synchronize it to a
rhythmic value in time with the VP4's tempo.
Depth – This controls the amplitude, or intensity, of the LFO, adjusting how
prominently it affects the sound.
LFO Type - Sets the waveform shape. Options include classics like Sine,
Triangle, Square, Saw, and Random, as well as more specialized shapes like
Log, Exponential, and Astable, which simulates certain analog LFOs.
Duty and Shape – These alter the waveform in distinctive and useful ways.
Adjusting the Duty of a Square wave, for instance, controls the proportion of
time that the waveform stays in its "high" state versus its "low" state during
each cycle. The best way to understand these controls is to observe the
waveform graph while making adjustments.
High Cut – filters the waveform, smoothing out aspects of its shape.
Quantize – This converts smooth waveforms into stepped ones. For example,
applying Quantize to a Triangle waveform will change its smooth, continuous
rise and fall into a series of distinct "terraces".
Run – Starts and stops the LFO. This can be used to assign a Pedal/Switch
or Envelope Follower to trigger the LFO, or to start/stop it via MIDI, ensuring
perfect alignment with a track.
Output B Phase: The LFO outputs two signals, and you'll see LFO A and LFO B
listed in the modifier sources. You can use this control to change the Phase of
output B with respect to A.
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