Every time i try to open Mathematica, it seems to freeze on the "Initializing" screen, the one with the red splash thing. It either freezes at "Initializing cell styles..." or "Initializing notebook..." How do i go about fixing this? Is this common? Also, I am using the latest release of Raspbian De...

I was wondering if there was an audio sensor that existed for the raspberry pi that could detect changing levels in frequency. My goal is to get some lights dancing to music using the raspberry pi.