Poly Envelope Generator

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Filter Formula FM Station

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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

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Octagon One To Eight Switch Oscillator Oscilloscope Octal Switch

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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 Sixteen Step Sequencer Super Envelope Generator Synth Voice Sample and Hold Synthesizer Expander Module

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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

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

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

AirStep Oscillator 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 FM Station Poly FM Station Poly VCO-20 Dual Oscillator VCO-20 Dual Oscillator Additive 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

Cherry Audio’s Poly Envelope Generator is a polyphonic ADSR with sustain control that drastically simplifies creating polyphonic patches. It takes a polyphonic gate signal as its input and generates control voltage envelopes for each individual note, or voice. If you are unfamiliar with envelopes in general, or need a quick refresher, check out the documentation for the "standard" Envelope Generator which goes over ADSR envelopes in detail.

Below is an example of a simple polyphonic patch with sustain control that uses the Poly Envelope Generator to control the amplitude of a Poly Oscillator module.

Inputs, Outputs, and Controls

Gate In jack- Patch polyphonic gate signals here to trigger the envelope. Typically this will be connected to the Poly Gate jack in the I/O Panel.

Sustain Pedal In jack- A +5V gate signal received at this jack holds the envelope at its sustain level. Typically this is patched to the Sus (sustain) jack in the CV Outs section of the I/O Panel which converts MIDI sustain pedal messages (CC#64) from a keyboard controller to a +5V gate signal.

"A" (Attack) slider- Defines the length of time for voltage to rise from 0V to 5V when the gate voltage is applied.

"D" (Decay) slider- Defines the length of time for voltage to fall from the Attack stage 5V peak to Sustain stage setting.

"S" (Sustain) slider- Sets the held voltage level following Attack and Decay phases.

"R" (Release) slider- Defines the length of time for voltage to fall from Sustain level to 0V when gate is released.

Env Out and Env Out Inv- These are the envelope voltage outputs. The Env Out voltage ranges from 0V to +5V, whereas the Env Out Inv jack is an inverted version, with output ranging from 0V to -5V.