U-035 3ch audio-to-trig (4HP)

3ch audio-to-trig converter with adjustable trig time and rest time for making Eurorack-level trigs from audio signals (for example from individual outs from drummachines or similar sources)

From top:
three input jacks (low level external audio up to eurorack level)
three output jacks + LEDs (fixed 5V trigs/gates)
trig time knob (1ms-500ms)
rest time knob (1ms-500ms)

Each input can be AC or DC coupled (set jumper behind input jack for DC coupling) and contains preamp with adjustable amplification (0dB to +26dB, internal trimmer). Output triggers are fixed level (5V) and length can be set by “trig time” knob. Trig time is counted from first rising edge of incomming audio signal (mode jumper set) or from end of incomming signal (mode jumper removed). This allows fixed length trigs or changing trig length using input signals with different length. “Rest time” knob disables retriggering for set time (avoiding false/unwanted triggers).

An unusual use – if inputs are DC coupled (jumpers set) and input is gate signal long enough then “trig time” sets output for time set, output trig is low for “rest time” and comes up again after “rest time” and repeats again. It can create repeating trigs (bursts) while input gate is active. Sum of “trig time” and “rest time” determines rate of repeats.

Width: 4TE/ 4HP/ 20mm
Depth: 52mm /2,1″ max.
Current: 20mA
Power cable included


  • 20 mA +12V
  • 0 mA -12V
  • 0 mA 5V
  • 52 mm deep

This Module is currently available.

$62 Price in €
4 HP Utility
submitted May 31st 2017, 08:37 by stringy | last Change Aug 9th 2018, 08:42 by ParanormalPatroler