How Does It Work?#

MIDI-CV is a monophonic bridge from MIDI into modular control voltages, converting note input into Pitch, Gate, Vel, and Mod outputs with device filtering, channel selection, note priority, and pitch bend support.

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Quick Overview#

• It listens to one MIDI device or All Devices.
• It can listen to one MIDI channel or ALL.
• It outputs a single monophonic note stream.
• It follows pitch bend and mod wheel (CC1) messages.
• It lets you choose which held note wins with Priority.

Inputs And Outputs#

Port	Type	What It Does
Pitch	CV	1V/oct pitch output. C4 is 0V, and pitch bend is added directly to this output.
Gate	Gate	Goes high while the selected note is active. Output is a standard unipolar gate (0V or 5V).
Vel	CV	Note-on velocity as unipolar CV (0..5V).
Mod	CV	Mod wheel (CC1) as unipolar CV (0..5V).

Controls Reference#

Control	Values	Default	Behavior
Device	All Devices or one MIDI input	All Devices	Filters incoming MIDI by device before note selection.
Channel	0..16	0	0 means listen to all channels. 1..16 listen to one specific channel.
Bend	1..12 semitones	2	Sets the pitch-bend range applied to Pitch.
Priority	LST, LOW, HI	LST	Chooses which held note controls the mono output when notes overlap.

Note Priority And Gate Behavior#

• LST follows the most recently pressed note.
• LOW follows the lowest held note.
• HI follows the highest held note.
• Releasing all notes drops Gate low, but the pitch output stays at the last played voltage until a new note arrives.

MIDI Filtering And Controller Handling#

• Device filtering happens before channel filtering.
• Changing Device or Channel clears the current held-note state, drops the gate, and resets the mod output.
• Pitch bend is applied in real time to the active note and scaled by Bend.
• Mod is a shared controller output for the whole module, not a per-note value.

Patch Ideas#

• Patch Pitch and Gate into a classic mono synth voice.
• Use Vel to modulate envelope amount, VCA level, or filter cutoff.
• Use Mod as a live performance CV for vibrato depth, fold amount, or delay mix.