Diana (or Dynamic Interactive Audio and Noise Analyzer) is a small piece of software that I wrote as an assignment for the course Music, Computing, and Design I, taught by Ge Wang at CCRMA.

It analyzes the signal from your default input and shows it in a nice OpenGL 3D way. It also implements a simple pitch detection algorithm to tell you what note you are whistling. You can find the source code, download and more info here.

The program is quite cool (and pretty useless too), and I had a lot of fun writing it, but what I like the most is its name. And now some awesome screenshots: