Make Noise Function is clocking both the Rene and Brains/Pressure Points. End of Rise and End of cycle are going into the X and Y gate input of the Rene. Function is in cycle mode. Positive output is going to Optomix. Maths is controlling the rise and fall of the Function. A quantized random output is also going into the "both" input. You can see basic enveloping going on at the beginning and end of the video.