I run into the zipper noise clicking popping problem with my audio when I attempt to change the frenquency of any hip~ or lop~ object. I also run into the zipper noise issue when I try to change the dry and wet levels of freeverb. The problem is, I can't just use a line~ object to clear this problem up as the line~ object outputs audio and I need something that just outputs logic in both of these cases. I've tried using [line] to no effect as well. Any suggestions?

by default, [line] has a resolution of 20ms. but you can go down to 1ms with [line 0 1]
That will alleviate some or a lot of your troubles.

but if you really need to go with a signal controlled approach, there are signal versions of lop~ and hip~ in maelstorm's mmb library: http://puredata.hurleur.com/sujet-6150-whole-freakin-library

as for freeverb, you can just workaround by setting it 100% wet, and using [*~] objects to perform the dry/wet balance yourself.

that did the trick! thank you! I was wondering was line appeared to be so different from line~