I've still been unable to fix the audio issues with the Is2 mic, but I wanted to continue with a related project that also worked with the Pi Action Camera software. I wrote up another Hackaday project for this, but tl;dr I attempted to make a real life 3rd person camera. What this does for this project though is that it allowed me to add a much more real time video system which in turns powers the preview page. Still some things to be fleshed out and cleaned up, but it's at least a little work that I other wise wouldn't have done due to still being stuck with the mic issues here.