“Penguin synth is a free vst synth for windows. The Dubble oscillators can be set to different types
including Overdrive, FM, FMB, Harmonic, Split and Fade
The oscillators Using a combination of two Waveforms
In order to make peace a broader palette of sounds
By Middle of WavMod & Phase you can further distort them
Also you can filter them or crush before the sound goes to the filters”
Source : stardust-audio.com
