What kind of signals work with StarLab’s CV inputs?

The following inputs are designed to receive continuous CV input of +/-5V:

  • SHIMMER – Sets shimmer gain.
    • SHIMMER knob position acts as an offset.
  • INTERVAL – Sets pitch interval for shimmer.
    • Quantized to 1/2 steps over +/- 1 octave range.
  • HIGH DAMP – Affects the wet signal high end filtering.
    • Positive voltage opens filter.
    • HIGH DAMP knob position acts as an offset.
  • GLIMMER – Sets glimmer gain.
    • GLIMMER knob position acts as offset.
  • SPEED – Sets LFO speed.
    • SPEED knob position acts as offset.
  • DEPTH – Sets LFO depth.
    • DEPTH knob position acts as offset.
  • EXT LFO IN – External LFO input.
    • DEPTH knob acts as attenuverter.
  • FEEDBACK – Affects delay feedback or Karplus-Strong string decay/resonance.
    • FEEDBACK knob position acts as offset.
  • DECAY – Affects reverb decay length.
    • DECAY knob position acts as offset.
  • WET – Affects wet output signal level.
    • WET knob position acts as offset.

The following inputs are designed to receive 0-5V CV input.

  • INFINITE – Engages the infinite effect to hold the input signal going into the reverb.
    • Rising edge trigger will toggle the state.
    • Can be set to momentary response by pressing and holding REGEN button at power-up.
    • Set to latching response by default.
  • IN GATE – Gates the input to the reverb when CV is high.
    • BLUE INPUT GAIN LED indicates audio input is gated and not sent to the reverb.
    • Can be set to latching response by pressing and holding HIGH BAND button at power-up. Set to momentary response by default.
    • Karplus-Strong mode – Continuously excites or ‘bows’ the string in latching or momentary operation.
  • FAVORITE – Toggles between the physical knob/switch settings of the module and the selected Favorite preset setting.
  • ECHO ON – Busses the delay output to the WET output to mix with the reverb signal.
    • Can be set to momentary response by pressing and holding ECHO ON button at power-up. Set to latching response by default.

The following inputs are designed to receive 0-5V rising edge trigger CV input.

  • LFO CLOCK IN – Sets the LFO speed to sync with phase-alignment to the clock input.
    • SPEED knob acts as clock divider/multiplier.
  • TAP/TRIG – Sets the delay time with clock CV input. DELAY/TUNE knob acts as clock multiplier/divider.
    • Clock min 25ms, clock max 3s.
    • Karplus-Strong mode – Triggers or ‘plucks’ the string on rising edge transition.
  • CLEAR – Clears audio data from reverb buffer when rising edge detected.

Additional CV Voltage Ranges

  • SIZE/PITCH +/-2V
    • Provides 1V/octave pitch tracking of the SIZE/PITCH knob.
      • -2V = 2 octaves down
      • 0V = No size/pitch change
      • +2V = 2 octaves up. Knob position acts as offset.
  • SIZE/PITCH (Karplus-Strong mode) 0-4V
    • Tunes string to a range of 4 octaves over 4V at 1V/octave.
    • DELAY/TUNE knob acts as fine tune control over 1 octave range.