Poly CV Converter

AirVector Envelope AirWave Vector Oscillator Analog Shift Register Arpeggiator Additive Oscillator AirStep Oscillator Amplifier Attenuverter

Bandpass Filter Bend Limiter Binary Blank Panel 6HP Black/White Boolean Logic

Chorus Clock Divider Console Mixer Crossfade CV To MIDI CC Converter CV To MIDI Compress

DC Source Delay Digital Reverb Diode Distortion Drum Highpass Lowpass Drum Oscillator Dual VU Meter DCO-60

Eight Step Sequencer Eight To One Switch Envelope Follower EG-20 EG Station Envelope Generator ESP-20 Processor

Formula FM Station Filter

Glide

Hex Phaser

Invert

LFO Lyrinx Filter Ladder Filter Limiter

Mega Saw Micro Burst MIDI CC Converter MIDI Channel Filter MIDI Clock Divider MIDI Drum Trigger MIDI Input MIDI Multiple MIDI Output MIDI Trigger 3 Mini LFO Mini Mono to Poly Mini Plug-In Host Mini Poly to Mono Mod Wheel Assistant Mono To Poly Mighty Piano Roll Multiple

Noise Generator Notch Filter

Octagon One To Eight Switch Oscillator Oscilloscope Octal Switch

Panner Percussion EG Plug-In Host Poly Amplifier Poly CV Converter Poly Filter Poly Glide Poly Multiple Poly Octave Oscillator Poly Oscillator Poly Six-Input Mixer Poly Stereo Spread Poly To Mono Poly Unison Phaser Poly EG-20 Poly EG Station Poly Envelope Generator Poly FM Station Poly Quantizer Poly Synthesizer Expander Module Poly Super Envelope Generator Poly VCF-20 Filter Poly VCO-20 Dual Oscillator Polymode

Quantizer

Random Task Ring Modulator Re-Animator

Sampler I Sampler II Six-Input Mixer Six-Input Stereo Mixer Splitter Spring Reverb String Chorus Sub Octave Super LFO Super Oscillator Sync Divider Sync Generator Sync To MIDI Clock Sample and Hold Synthesizer Expander Module Sixteen Step Sequencer Super Envelope Generator Synth Voice

TB Oscillator Three-Band EQ Threshold Trigger to Gate Converter

Vintage Oscillator Vocoder Voltage-Controlled Mixer VCF-20 Filter VCO-20 Dual Oscillator Vintage Resonator

Arpeggiator Micro Burst Random Task

Analog Shift Register Bend Limiter Diode Envelope Follower Glide Invert Mod Wheel Assistant Poly Glide Ring Modulator Poly Quantizer Quantizer Sample and Hold

Chorus Delay Digital Reverb Distortion Hex Phaser Spring Reverb String Chorus Three-Band EQ Vocoder Compress Limiter Phaser

Percussion EG EG-20 EG Station Envelope Generator Poly EG-20 Poly EG Station Poly Envelope Generator Poly Super Envelope Generator Super Envelope Generator

Bandpass Filter Drum Highpass Lowpass Lyrinx Filter Poly Filter Ladder Filter Notch Filter Poly VCF-20 Filter VCF-20 Filter Vintage Resonator Filter

DCO-60 Poly Synthesizer Expander Module Synthesizer Expander Module Synth Voice Polymode

Mini Plug-In Host Plug-In Host

Binary Boolean Logic Formula Threshold

Dual VU Meter

CV To MIDI CC Converter CV To MIDI MIDI CC Converter MIDI Channel Filter MIDI Clock Divider MIDI Drum Trigger MIDI Input MIDI Multiple MIDI Output MIDI Trigger 3

AirVector Envelope Console Mixer Crossfade Poly Six-Input Mixer Six-Input Mixer Six-Input Stereo Mixer Voltage-Controlled Mixer

AirWave Vector Oscillator Drum Oscillator LFO Noise Generator Oscillator Poly Octave Oscillator Poly Oscillator Sampler I Sampler II Sub Octave Super LFO Super Oscillator TB Oscillator Vintage Oscillator Additive Oscillator AirStep Oscillator FM Station Poly FM Station Poly VCO-20 Dual Oscillator VCO-20 Dual Oscillator

Mini Mono to Poly Mini Poly to Mono Mono To Poly Poly Stereo Spread Poly To Mono Poly Unison

ESP-20 Processor

Eight Step Sequencer Octagon Mighty Piano Roll Sixteen Step Sequencer

Mega Saw Mini LFO Sync Generator

Eight To One Switch One To Eight Switch Octal Switch

Blank Panel 6HP Black/White Clock Divider DC Source Panner Poly Amplifier Poly CV Converter Poly Multiple Splitter Sync Divider Sync To MIDI Clock Trigger to Gate Converter Amplifier Attenuverter Multiple

Oscilloscope Re-Animator

The Poly CV Converter converts polyphonic MIDI input to four individual CV/gate/velocity outs for creating versatile polyphonic patches. Featuring selectable number of voices, MIDI channel, and outputs for converting MIDI pitch bend, mod wheel, aftertouch and volume messages to CV signals. If more than four voices are needed, multiple instances can be chained together using the Overflow MIDI jack to expand the polyphony of a patch.

Voltage Modular has a number of “Poly” modules that can simplify making polyphonic patches, but doing it the “old-school” way can give you more versatility by being able to customize each voice individually. It’s possible, for example, to use a different filter envelope on each voice so that every note in a chord sounds a little different from one another.

MIDI Section

MIDI Channel- Selects which MIDI channel the module will respond to. Set this to the same channel as your controller or external MIDI device. When set to “All,” MIDI notes from all sixteen channels will be received.

MIDI In jack- Input jack for receiving MIDI notes from an external controller or MIDI device. This is typically patched to the From Host MIDI jack in the I/O panel or the MIDI Out jack of a MIDI Input module.

Over Flow jack- Once the module is using all of its allocated voices, additional MIDI notes received at the MIDI In jack will be passed thru to this jack. Connecting this to the MIDI In jack of a second instance of this module makes it possible to increase the number voices to more than four.

Polyphony

Number of Voices- These buttons select how many voices will be used in the polyphonic patch. Set this to the maximum number of notes you wish to play at the same time. If only three voices of polyphony are needed, setting this to three eliminates the need to set up an oscillator, envelope, amplifier, etc. for the fourth voice which can save space and CPU.

Pitch, Gate, and Velocity CVs

Each time a MIDI note is received, the module evaluates which voices are already being used and allocates the note to one of the four available voices. Each voice has the same three output jacks.

Pitch CV jack- MIDI note-number messages are converted to CVs for controlling the pitch of an oscillator via their Keyb CV or Pitch CV jacks.

Gate jack- MIDI note-on/off messages are converted to gate CVs which are typically patched to the Gate In jack of an envelope. The red LED illuminates to show when each voice is in use.

Velocity jack- MIDI note-velocity messages are converted to CVs which can be used for a number of things, but often will be patched to the CV In jack of an Amplifier module to scale an envelope that is controlling the volume of a sound.

Mod/Performance Controls

Pitch Bend jack- MIDI pitch-bend messages are converted to CVs ranging from -5V to +5V. 0V is output when the pitch wheel is in its center, or neutral, position. This will often be patched to the Bend CV In jack of a Bend Limiter module who’s output is patched to the Keyb CV or Pitch CV jack of an oscillator.

Mod Whl jack- MIDI mod wheel (CC#1) messages are converted to CVs ranging from 0V when down to +5V when up.

Aftertouch jack- MIDI channel-pressure messages (how hard the key is pressed while sustaining) are converted to CVs ranging from 0V to +5V. Note that not all MIDI controllers send aftertouch messages.

Volume jack- MIDI volume (CC#7) messages are converted to CVs ranging from 0V to +5V.

Let's look at an example

This is a velocity-sensitive patch with four voices of polyphony. You can see that MIDI is received from the From Host MIDI output in the I/O Panel. The Poly CV Converter converts the note messages to four separate pitch, gate, and velocity CV outputs. The Pitch CV jack for each voice is patched to the Keyb CV inputs of the four oscillators. The Gate jacks are patched to the Gate In jack of four envelopes which are patched to the CV In jack of the Amplifier next to them to control the volume of the oscillators. The Velocity jacks from the Poly CV Converter are patched to the CV In jack of a second Amplifier which scales the overall level of each voice. Then finally the output of each secondary Amplifier is fed to a Stereo Mixer which is patched to the Main Outs.