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Thanks to an original mixture of FM, AM, additive and substractive synthesis, Rainbow is able to produce a wide assortment of sounds, from analog emulations or synthesized drums to 80’s electric pianos or synth basses.
Each voice features up to 4 oscillators, with a variety of classic waveforms (Sine, Saw, Square, Triangle, Noise). These waveforms can be modified in a number of ways, including variable distortion waveshaper and rectification.
Oscillators routing is fully dynamic, with sliders controlling the FM amount and mix output. This makes it possible to define your own FM algorithms, including crazy feedback combinations not found in typical FM implementations.