I noticed on a few patches with short release times, there's sometimes a little "burst" of white noise, but they're not using a noise engine, and I couldn't filter out the noise.
"Clean n Tidy" is a good factory preset example.
I narrowed it down to the Multi Comp effect. When it's on, and using one of "OPP, high ctrl, or all up" subtypes, the white noise happens. I can even hear it when I turn OSC1 all the way down and hit a key rapidly/firmly -- there will be a little pop and burst of the white noise. The white noise volume increases if I raise the "Amount" parameter, and is delayed if I increase the "Time" parameter.
Is my machine faulty? Are other folks hearing this too?