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.
Nineteen Presets with individual filters, envelopes, and amplifiers
Two band-limited oscillators with four footages (32', 16', 8', 4')
Synth preset section:
Instrument preset section:
Tweaks (not to be found in the original Sigma):
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.