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Chapter 12

MIDI, CV & sync

Drive modular gear, sync to a clock and control everything over MIDI.

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In this chapter · 6
  1. 12.1CV, gate and pressure outputs
  2. 12.2Clock and sync
  3. 12.3MIDI channels and computers
  4. 12.4Local control
  5. 12.5Controlling with MIDI CCs
  6. 12.6MIDI CC chart
12.1IntermediateManual §17.1 p.117, §17.1.1 p.117, §3.2.2 p.20, §14.1.2 p.96

CV, gate and pressure outputs

The Pitch, Gate and Pressure outputs on the back let the MicroFreak play a Eurorack system or an analog synth with CV inputs. Every note you play on the keyboard, and every note of a playing sequence, is converted straight away into these three voltages.

The three outputs

  • Pitch — a control voltage for external oscillators. By default it follows 1 V per octave: play an octave and the module plays an octave.
  • Gate — triggers external envelopes and other devices.
  • Pressure — sends either pressure or velocity, depending on Utility > Preset > Press mode.
  • Play the keyboard in paraphonic mode while a sequence runs and the keys take priority at the outputs.

Play a modular system

  1. Patch Pitch to an oscillator’s pitch input and Gate to an envelope’s gate input.
  2. Check the voltage standards your gear expects and set Utility > CV/Gate > Pitch format and Gate format to match.
  3. Play the keyboard or start a sequence (The sequencer).

CV/Gate settings (global)

SettingOptionsWhat it does
Pitch format1V/Oct, Hz/V, 1.2V/OctThe voltage standard at the Pitch output.
Gate formatS-Trig, V-Trig 5V, V-Trig 12VThe gate voltage level at the Gate output.
Pressure range1V–10VThe voltage range of the Pressure output.
0V referenceC-1–G8Which note outputs 0 V when Pitch format is 1V/Oct or 1.2V/Oct.
1V referenceC-1–G8Which note outputs 1 V when Pitch format is Hz/V.

Pitch formats

1V/Oct
One volt per octave, over 0–10 V. The default, and the most widely used standard — Eurorack and many others.
Hz/V
For systems where one volt changes the pitch by a fixed number of hertz rather than by a fixed musical interval.
1.2V/Oct
The Buchla standard.

You can also play Eurorack modules over MIDI, through a module that converts MIDI to pitch and gate — see MIDI channels and computers.

From the community

Tutorials | MicroFreak - Episode 5: Connectivity

Arturia

Official tutorial 5: hooking MicroFreak up to computers, MIDI gear and modular via USB, TRS MIDI, CV/gate and clock.

Arturia Microfreak to Modular / Eurorack / CV-gate Gear

robotic conversations

Quick tour of the Utility settings for CV, gate, pressure output and clock (shown on FW 3).

Arturia Microfreak | An excellent modular companion

Cinematic Laboratory

Using MicroFreak as a capacitive touch controller and sequencer for a Eurorack system.

MicroFreak: Episode 2.5 (Connectivity)

Undulations

Demos CV/pressure out to another synth, playing MicroFreak from a MIDI keyboard, and DAW sequencing.

12.2IntermediateManual §17.2 p.119, §3.2.3 p.20, §14.1.2 p.96, §14.2.1 p.100

Clock and sync

The MicroFreak’s tempo can come from its own clock, from a computer over USB, from MIDI or from the Clock input. The Clock input and output also speak older pulse formats, so you can sync with pre-MIDI drum machines from the likes of Korg and Roland as well as modular systems.

Sync settings (global)

SettingOptionsWhat it does
SourceInt, USB, MIDI, Clock, AutoWhere the MicroFreak takes its tempo from.
ClockOne step, 2PPQ, 24PPQ, 48PPQThe pulse format of the Clock input and output.
Global TempoOff, OnWith On, the tempo saved in each preset is ignored and the tempo stays where you last set it.

Sources and formats

  • USB is the MicroFreak’s built-in MIDI interface, for a computer; MIDI is the MIDI input on its 5-pin DIN adapter.
  • The clock jacks handle 24 pulses per quarter note, 48 ppq, 2 ppq, or a single pulse per step (One step).
  • In the MIDI Control Center the source is called MIDI clock source, with the options USB, MIDI and Sync (MIDI Control Center).

From the community

Tutorials | MicroFreak - Episode 5: Connectivity

Arturia

Official tutorial 5: hooking MicroFreak up to computers, MIDI gear and modular via USB, TRS MIDI, CV/gate and clock.

Arturia Microfreak | An excellent modular companion

Cinematic Laboratory

Using MicroFreak as a capacitive touch controller and sequencer for a Eurorack system.

12.3IntermediateManual §17.5 p.120, §17.5.1 p.120, §17.6 p.121, §17.7 p.121, §17 p.116

MIDI channels and computers

MIDI has 16 channels, so one instrument can send separate parts to several others. The MicroFreak has one channel it sends on and one it listens on, set separately — handy when a DAW plays the MicroFreak on one channel while you record its keyboard on another.

SettingOptionsWhat it does
Utility > MIDI > Input chanAll, 1–16, NoneThe channel the MicroFreak receives on.
Utility > MIDI > Output chan1–16The channel it transmits on.
Utility > MIDI > Output destNone, USB, MIDI, BOTHWhich port the MIDI goes out of.

Typical set-ups

  • To play a drum machine that listens on channel 10, set Output chan to 10.
  • To respond only to a controller such as a BeatStep Pro sending on channel 2, set Input chan to 2.
  • For a DAW, match the MIDI track’s channel to the MicroFreak — for example, Input chan 1 to play back the DAW’s track and Output chan 2 to record what you play.
  • The MicroFreak is a USB class-compliant controller, so a plain USB cable connects it to a computer. Gear with 5-pin MIDI connects through the grey TRS-to-DIN adapters.
  • Eurorack modules can be played over MIDI through a module that converts MIDI to pitch and gate.

Tutorial: control Arturia’s MINI V

  1. Set Utility > MIDI > Output chan to 4.
  2. Connect the MicroFreak to the computer by USB and open the MINI V, standalone or in your DAW.
  3. In the MINI V, set the MIDI channel at the bottom right to 4 (V Collection instruments receive on all channels by default).
  4. Open the Arturia menu at the top left, choose Audio MIDI settings and select the Arturia MicroFreak under MIDI devices.
  5. Click the MIDI symbol at the top right; the MINI V’s knobs turn red or purple.
  6. Click the MINI V’s Cutoff Frequency knob, then turn CUTOFF on the MicroFreak — the MINI V’s cutoff follows.

Tutorial: play VCV Rack

  1. Connect the MicroFreak to the computer by USB and open VCV Rack — its demo patch is all you need.
  2. In the MIDI-CV module in the first position, change computer keyboard to Core MIDI and no device to Arturia MicroFreak.
  3. In the Audio-8 module, change no device to your system’s audio output.
  4. Play: the MicroFreak’s keyboard, arpeggiator and sequencer now drive VCV Rack’s oscillator, and velocity drives its envelope.

From the community

MicroFreak: Episode 2.5 (Connectivity)

Undulations

Demos CV/pressure out to another synth, playing MicroFreak from a MIDI keyboard, and DAW sequencing.

12.4IntermediateManual §17.4 p.120, §14.2.1 p.100, §14.1.2 p.96

Local control

Normally the keyboard and knobs play the MicroFreak’s own sound engine — local control is on. Switch it off and they only send MIDI. That sounds odd, but it is exactly what you want when a DAW or external sequencer sends the notes back to the MicroFreak.

SettingOptionsDefault
Utility > MIDI > LocalOff, OnOn

With local control off

  • The keyboard and panel controls are still sent over MIDI, but they no longer affect the sound engine — on its own, the MicroFreak seems dead.
  • There is no double triggering, or “MIDI echo”: notes you play reach the engine once, after a round trip through the sequencer.
  • In a DAW you hear the MicroFreak while its track is selected, because the DAW sends the MIDI back. Select another track and you can play that instrument from the MicroFreak without it playing along.
  • The MicroFreak can play back recorded MIDI while you play other instruments from its keyboard and controls.

You can also change it in the MIDI Control Center’s Device tab (MIDI Control Center).

12.5AdvancedManual §17.8 p.122, §17.9 p.123, §21.1 p.141, §17 p.116

Controlling with MIDI CCs

Control change (CC) messages are the MIDI version of turning a knob. Turn a knob on the MicroFreak and it sends a CC; send that CC to the MicroFreak and the parameter moves as if you had turned the knob. CC 23 is the filter cutoff, for example: a value of 0 closes the filter completely and 127 opens it fully.

What you can do with it

  • Control the parameters of MIDI-only synths from the MicroFreak’s panel, as well as playing their notes.
  • Link the MicroFreak’s knobs to plug-in knobs with MIDI learn — every Arturia V Collection instrument has it — even several plug-ins at once.
  • Control the MicroFreak from a modular system through a CV-to-MIDI module such as the Befaco VCMC.
  • Select Speech oscillator words remotely (Speech oscillator words and CCs).

Tutorial: drive a VCV Rack envelope from the cycling envelope

  1. Set up VCV Rack as in the second tutorial in MIDI channels and computers, so the MicroFreak plays its oscillator and ADSR.
  2. Click an empty space in the rack, type midi in the module browser and add the MIDI-CC module.
  3. Change its no device to Arturia MicroFreak. The module has 16 CC fields, numbered 0–15, each with a patch output below.
  4. Click the first field — the 0 turns into a dash — and turn RISE. The field learns the CC that RISE sends.
  5. Do the same with FALL, HOLD/SUSTAIN and AMOUNT in the next three fields.
  6. Patch outputs one to four to the ADSR’s Attack, Decay, Sustain and Release CV inputs.
  7. Press ARP | SEQ, play a chord and turn the cycling envelope’s knobs — the ADSR follows (The cycling envelope).

From the community

Microfreak MIDI Keyboard Trick

Free Beat

Using an aftertouch MIDI keyboard to drive MicroFreak’s pressure modulation for easier vibrato.

12.6AdvancedManual §17.10 p.124, §21.1 p.141

MIDI CC chart

These are the MicroFreak’s default CC numbers. Each works both ways: turning the control sends the CC, and receiving it moves the parameter (Controlling with MIDI CCs).

ParameterCC number
Spice2
Glide5
Oscillator Type9
Oscillator Wave10
Oscillator Timbre12
Oscillator Shape13
Filter Cutoff23
Cycling Env Amount24
Filter Amount26
Cycling Env Hold28
Envelope Sustain29
Keyboard Hold (toggle)64
Filter Resonance83
ARP/SEQ rate (free)91
ARP/SEQ rate (sync)92
LFO rate (free)93
LFO rate (sync)94
Cycling env rise102
Cycling env fall103
Envelope Attack105
Envelope Decay106
  • The arpeggiator/sequencer rate and the LFO rate each have two CCs: one for the free rate and one for the synced rate.
  • CC 64 toggles keyboard hold (Key hold).
  • Knobs only send CCs while Utility > MIDI > Knob send CCs is on.
  • On the Speech oscillator, CCs 10, 12 and 13 pick categories, timbre and words (Speech oscillator words and CCs).