
Creating Stepped Noise
If we want to create a noise, that is stepped, so it holds its value for a period of time and then on a trigger changes to a new noise value 
we can pulse a constantCHOP with for example a beatCHOP. The constantCHOP will hold the value till the next time the Snap parameter gets pulsed. 
A filterCHOP lets us manipulate the transition between the pulses.