Another angle, a bit messy though (and mono). But you get the idea.

http://www.pdpatchrepo.info/hurleur/otomono.pd

nice work!... I want to add some more effects to mine...to make it a multi-fx box but I have to figure out how to use [switch~] properly

Over time, since I stumbled upon this thread, the bit inverter principle has remained one of my favorite effects. A sound can't get harsher than this. It's better than bit reduction. If you can't get enough of that sort of sound, listen to Iszoloscope:

http://www.iszoloscope.net/main.html

Attached is my current Pd bit inverter, simplified and extremified to the bone, with a crude noise gate built in.

Thanks to all people in this forum collaborating and finally finding out how to make a bit inverter, for example.

Katja

http://www.pdpatchrepo.info/hurleur/bitflip~-demo.pd