The Nabla is a software instrument for Microsoft Windows (VST2/VST3/CLAP) and Apple macOS (VST2/VST3/AU/CLAP) simulating the KORG Delta DL-50 Strings Synthesizer from 1979. Is is written in native C++ code for high performance and low CPU consumption. The main features are:
Paraphonic Synthesizer and Strings sections
Up to 64 voices polyphony
Synthesizer section:
Four band-limited frequency divider-driven signal generators
Additional noise generator
4-pole zero-delay feedback bandpass/lowpass filter
Strings section:
Two band-limited frequency divider-driven signal generators
2-band equalizer
Ensemble effect
Flexible pitch/filter modulation by LFO or noise
Tweaks (not to be found in the original Delta):
„GOD Mode“ to provide true polyphony
Panning for Synthesizer/Strings sections
Built-in phaser and delay effects
Double precision audio processing
All parameters can be controlled by MIDI controllers
Plug-in supports Windows and macOS (32 bit and 64 bit)
https://www.fullbucket.de/music/nabla.html
