The ResponsiveAnalogRead library works great with this, you get to set a threshold and if the pot movement passes that, you'll get the reading of the pot to use. I think that the "audio garbage" you're getting is more from the jitter of the pot...
I have a question regarding the locking process. We finished the prototyping stage and starting with the production, obviously the idea is to ship the boards locked with a key that we generated. I want to create a workflow to lock the teensys as...