MItAC update

- extracted audio from OLD 500ms databases (this is apparently in reality close to 100ms due to math error)
- extraction without spiral unwrap possible due to negligible curvature of images
- correct playback rate to be determined since area of these images is not known yet

TO DO:
- two point differentiation to model stylus velocity
- solve power issue with microscope
- figure out how to unwrap partial spiral