Liivatera - Mono-MIDI


MIDI / CV interface plus arpeggiator – The Mono-MIDI translates incoming note, clock and controller data into analog control voltages. A fast Cortex-M3 microcontroller, precise DA converters and a buffer for up to 32 notes guarantee stability and excellent performance. Switches and jumpers on the module’s circuit board allow users to edit note priority, trigger behavior and other options. On the Mono-MIDI’s front panel, there are control elements for altering speed and direction of the arpeggiator. It can be synchronized via MIDI clock.



MIDI data is fed to the module via a DIN connector. For translating signals into the analog domain, there are high-linearity 14 Bit converters. In detail, Mono-MIDI comes equipped with the following outputs:

  • CV: Emits control voltages calibrated to 1 V per octave. Besides notes, the Mono-MIDI also evaluates pitch bend data.
  • Gate: Provides gate voltages (+5 V).
  • Retrigger: Every time a key is pressed, while there is a note playing already, the Mono-MIDI generates a short pulse signal (+5 V) at this output.
  • Velocity: Emits control voltages based on incoming velocity values. (Range: 0 V to +5 V)
  • Aftertouch: CV signals distributed at this socket represent (polyphonic) aftertouch data. (Range: 0 V to +5 V)
  • Modulation: Provides control voltages derived from data generated by a modulation wheel (CC1). (Range: -5 V to +5 V)
  • Running: This output starts emitting a +5 V control voltage as soon as a MIDI start command is received. The voltage remains until a stop command is detected.
  • Clock: Emits analog clock signals. With the arpeggiator deactivated, the rate potentiometer can be used to determine a clock divisor.

The Mono-MIDI’s arpeggiator offers the following directions:

  • Up
  • Down
  • Up-Down

CV, gate and retrigger outputs
Velocity, aftertouch and modulation outputs
Clock and running outputs
MIDI DIN input


3U Eurorack module, 8 HP wide, 22 mm in depth
Power consumption: 65 mA at +12 V and 60 mA at -12 V

0.15 kg
Article Number

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