STriFE is a free software synthesizer developed by anosci. Available format(s): VST for Windows.
STriFE is a synth that produces strange harmonics through ring modulation.
It only uses two oscillators, but each has its own filter (and envelope), and the second has several options for detuning and phasing.
It’s designed for chords and leads, but works nicely for bass sounds as well.
Features:
- 23 waveforms to select from.
- One filter per oscillator.
- Separate envelopes for each oscillator’s filter.
http://anosci.net/vsts.html