Jitter Journey - Detecting Movement

My project mainly consists of Jitter, so I'm going to make some blog posts about what I did with it.

For the interaction, I wanted Max to detect motion and use the motion data to manipulate sound and visual.  Luckily, somebody made a patcher that fulfilled my need.

Hold Still is a patcher that uses frame-differencing to detect movement.  This simple and straightforward patcher uses video sensing to control sound synthesis.  

Hold Still is #32 in the Jitter Recipes. Download the patch here
You can read more specific details about how it works on that link.

I mapped the movement values to groove~ object to manipulate a glitch audio file.  The amplitude of the outputted sound is then mapped to jit.sprinkle object to manipulate the video feed.  

I also used Hold Still patcher to sense if a person is looking into the peephole or not.  I set the threshold very low in order to detect slight eye movement.

It looks like Isaac is using Hold Still for his project as well!

Very useful.