 The two analog oscillators provide classic waveforms; saw, triangle, saw-triangle, and pulse (which can be turned into a square wave at a value of 50%).The analog oscillators in the Evolver are very stable and accurate unlike some analog oscillators of the past, but drift (oscillators waver in and out of tune) can be applied.The two digital oscillators feature 95 12-bit wavetable waveforms from the Prophet VS but 16-bit user waveforms can also be loaded onto the internal RAM storage.