Crackling noise at Ab4
2007-11-01 by the_last_amethyst_deceiver
Hello list, I'm having the following issue with both my DEVO and PER. When any of the analogue oscillators sounds at Ab4 (somewhere around 830Hz), and is applied a moderate vibrato, a crackling noise is heard. It is only at that pitch (in a region of about +-15 of Fine-tuning), but it is the same issue with any of the 10 analogue oscillators. Suppose I choose the default patch on DEVO, turn OSC2 down, set the pitch of OSC1 to Ab4, set the amount of LFO1 to a moderate 3, and turn up the VCA. Since the crackling is most obvious when the oscillator outputs a triangle wave, I set OSC1 to TRI. When I turn the LFO-frequency up to 150, the crackling becomes extreme (but disappears when changing the OSC frequency to, for instance, G4 or A4), but it is still audible at an LFO-frequency of, say, 75. Does anyone here have the same issue? Any ideas? Thanks! Tomas.