Lowkey Instruments presents
Cortex Pro
VERSION 2.21 · WINDOWS
A wavetable, granular and sample synthesizer with its own piano roll, generative sequencers and over 8,000 presets, in one plugin.
The Cortex constellation
Every star is a feature
Tap a star to see what it does. The lines show how each part feeds the next, from the sound source to the final mix.
Oscillators
What makes it different
A full piano roll lives inside the synth. Load your other VST instruments into it, and they play through Cortex's own filters, effects and modulation.
See and hear it
Watch Cortex Pro
A quick look at the instrument. The full two-minute guided tour is coming soon.
Product demo track
Made only with Cortex Pro. Coming soon.
Inside the instrument
What you get
Everything below ships in Cortex Pro 2.21.
Sound sources
Two oscillators
- Saw, square, triangle, sine, wavetable, sample and granular
- Up to 8 unison voices with spread, detune and warmth
- Mono, legato and poly with glide
Wavetables
Draw, morph, import
- 12 factory tables plus your own, up to 256 frames
- 3D view and drawing tools
- Turn any sample into a wavetable
Samples
Drop in any audio
- WAV, AIFF, FLAC and MP3
- Crop, reverse, slice, loop and clip
- Play it straight, as grains or as a wavetable
Filters
42 filter types
- Clean low, high and band filters
- Combs, flangers, formant and ring mod
- Character filters with drive
Modulation
Move anything
- 4 LFOs and 3 drawable envelopes
- Any-to-any mod matrix with 4 macros
- LOKI chaos modulator
Effects
Effects and EQ
- Distortion, flanger, phaser, delay, dimension, shimmer and reverb
- Drag to reorder the rack
- 16-band dynamic EQ with live spectrum
Piano roll
Write music in the synth
- Chord generator with 200+ progressions
- Host your other VST3 instruments
- Export MIDI or bounce to WAV
Sequencers
Patterns that write themselves
- 128-step sequencer with scale lock
- multiSEQ: 6 lanes of Euclidean, Fibonacci and more
- Arpeggiator and one-click pattern generator
Presets and style
Sound and look your way
- 8,000+ presets plus a preset generator
- Text-to-speech voices become playable sounds
- 80 faceplates, 30 knob styles, MPE and 432 Hz tuning
Screens
See it up close
Real screens from Cortex Pro 2.21. Click any picture to open it full screen.
Introductory pricing
The earlier you join, the less you pay
Pay once. Every future update is free, for life. No subscription.
Now · first 100 buyers
Introductory price, one time, USD.
- Cortex Pro 2.21, VST3 and standalone for Windows
- 8,000+ presets
- Free updates for life
Next 500 buyers
Opens when the first 100 are gone.
After launch
Regular retail price.
More from Lowkey
The instrument line
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Grain Upright
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Monolith Oboe
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Tensions Violin
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Umbra Viola
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Support
Need a hand?
Install
Download from Gumroad, then copy the VST3 into C:\Program Files\Common Files\VST3 and rescan in your DAW.
Updates
New versions appear in your Gumroad library at no charge.
Contact
Support email coming soon.