Modulators

LFO Wavetable

The LFO Wavetable is a Low-Frequency Oscillator that scans through wavetables instead of a fixed waveform. Any of the wavetables on the SD card can be loaded, and the LFO output is taken from a single wave inside that wavetable.

Main features:

  • Per-wave LFO output: navigate the loaded wavetable with the Wave knob, modulate it for morphing modulation
  • Four speed modes: Free, Clock (tempo-synced), Ratio (synced to the voice's oscillator frequency, allowing audio-rate modulation) and OneShot (single-cycle envelope)
  • Configurable phase Skew for asymmetric, PWM-style waveshapes
  • Multiple frequency ranges (Slow, Medium, Fast) in Free and OneShot modes
  • Trigger from any Gate input, voice trigger or tempo-synced clock division
  • Three output polarities: bipolar, unipolar positive, unipolar negative
  • Output gain that can itself be modulated, useful for velocity/depth modulation

The LFO can be assigned to any modulatable parameter from that parameter's MOD ASSIGN screen (long-press the button below the parameter).

LFO Wavetable main screen

Loading a wavetable

On any tab, turn the encoder to scroll through wavetables in the current folder. Click the encoder to open the file browser and load a wavetable from another folder.

In the browser:

  • Press Button 1 to navigate up a folder level.
  • Press Button 4 to enable Autoload, allowing real-time auditioning.
  • Click the encoder to open a folder or load a file.

SPEED tab

This is where you set the LFO's running mode and rate. The first three buttons change with the active SpeedMode.

Free / OneShot mode
FrequencyRange SpeedMode
LFO frequency. The exact range depends on Range (see below). Mapped exponentially.Selects the frequency range:
Slow: 0.001 Hz to 2 Hz
Medium (default): 0.1 Hz to 50 Hz
Fast: 1 Hz to 5000 Hz
Selects the LFO mode: Free, Clock, Ratio or OneShot.
Clock mode
Clock SpeedMode
Selects the tempo-synced clock division. Choices: 16BAR, 8BAR, 4BAR, 2BAR, 1BAR, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64. Selects the LFO mode.
Ratio mode
RatioOffset SpeedMode
Stepped ratio relative to the voice's oscillator frequency, in 0.25× increments from 0.25× up to 24×. Useful for FM/AM-style audio-rate modulation that tracks the played note.Continuous fine offset added on top of Ratio, ±0.25× of the voice frequency. Use to detune slightly off the integer ratio for richer beating textures. Selects the LFO mode.

WAVE tab

WavePhaseSkew
Selects the wave inside the loaded wavetable (1 to N where N = total waves in the wavetable). Modulate for classic wavetable morph modulation.Phase offset of the LFO (-100% to +100%) — shifts the starting point of the waveform. Negative values wrap the phase backward.Phase distortion on the time axis (-100% to +100%). At 0 the wave plays normally; positive values compress the first half and stretch the second; negative values do the opposite. Equivalent to PWM-style waveshape skewing.

SETTINGS tab

These parameters define the LFO's behaviour and cannot be modulated.

Trig
Source that resets the LFO phase to 0 (and, in OneShot mode, restarts the envelope). Choices:
Off · Gate 1 through Gate 6 · Note (voice note-on) · CLK 1/64, CLK 1/32, CLK 1/16, CLK 1/8, CLK 1/4, CLK 1/2, CLK 1BAR, CLK 2BAR, CLK 4BAR, CLK 8BAR, CLK 16BAR (tempo-synced divisions).

OUTPUT tab

PolarityGain
Output polarity:
BI — bipolar (default), output swings from negative to positive.
UNI + — unipolar positive, output is always ≥ 0.
UNI − — unipolar negative, output is always ≤ 0.
Output level (-100% to +100%). Can be modulated — typically used as a velocity-driven Depth control. At -100% the output is silent.

Tip: in OneShot mode the LFO behaves as an envelope — set a Trig source, then on each trigger the LFO plays through one cycle of the wave and stops. Pair with a wavetable made of envelope-shaped waveforms to get arbitrary envelope contours, or use it as a one-shot LFO for note-aligned shimmer.

Render mode (Per Voice / Shared) — like every modulator, the LFO can be set to Per Voice (one independent LFO per voice of the instrument) or Shared (a single LFO shared by every voice). Per-Voice is the default; switch to Shared when you want every voice to ride the exact same LFO phase (typical for tempo-synced wash modulations), or to save CPU. Toggle the mode from the INSTRUMENT screen — focus the modulator slot, then press the PER VOICE / SHARED button in the footer.