The ratio between the upper and lower levels (mark space ratio) of a rectangular waveform is slowly modulated by an LFO. How to set up typical cyclic PWM in the various oscillator models. It is not dedicated, but built into the Rotary (Leslie effect) module… OK, Diva does actually have a distortion effect. Not really distortion, but ring modulation between the two notes of a duophonic patch is a very characterful effect that also delivers enough grit to cut through a mix. Here, the oscilloscope is left open to show the subtle waveshaping that can lead to a more beefy sound. On the other hand, Diva’s mixer (pre-filter) and amplifier will only distort if you give them plenty of signal. The first example here shows that turning ocillator levels down is best for the typical “acid” distortion for which the Roland TB303 and MS-20 were justly famous. In search of the best distortion you do not always need to turn everything (oscillator levels and filter resonance) up to eleven. Like in analogue mixers etc., gain-staging is rather important in Diva. Hardware analogue synths naturally distort at several points within the signal path, and because Diva is a close emulation, it does not need a dedicated distortion module either. Diva does not have a dedicated distortion module.
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