Free Korg Synth Simulation For Windows

Full Bucket Music releases Stigma based on the Sigma KP-30      03/04/17

Free Korg Synth Simulation For Windows

Buying Choices

Full Bucket Music tells us that Stigma is a VST2.4 software instrument for Microsoft Windows (both 32 and 64 bit) simulating the KORG Sigma KP-30 Performing Synthesizer from 1979. It is written in native C++ code for high performance and low CPU consumption.

Main features
Nineteen Presets with individual filters, envelopes, and amplifiers
Two band-limited oscillators with four footages (32', 16', 8', 4')
Synth preset section:

  • Eight presets including Noise and Ring modulator
  • Individual lowpass and global highpass filters


Instrument preset section:

  • Eleven presets, Delayed Vibrato effect


Effect section:

  • Portamento, Quarter Tone, Keyboard Sensor (aftertouch) and more


Tweaks (not to be found in the original Sigma):

  • Up to 64 voices polyphony with Velocity
  • Chorus/Ensemble section
  • Preset editor


MIDI Learn – all parameters can be controlled by MIDI CC
40 additional presets by kraftraum
Double precision audio processing
Plug-in comes in 32 bit and 64 bit versions
Fully compatible with SM Pro Audio's V-Machine

Pricing and Availability:
Free. Donations welcomed.

More information:



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