patch-to-code conversion

hi, i'm struggling with a probably very simple problem to solve: i'm trying to convert this patch, from the book "generating sound and organizing time", from visual patch to code. the general functioning of the patch seems to me to have got it right, but I don't understand where I have to put the noise() function in the codebox to prevent it from entering the audio band. any help will be greatly appreciated! on the left there is the visual one, and on the right the code one...