fun with audio codecs

Have you ever wondered what the stuff a lossy audio codec throws away actually looks or sounds like? After watching the awesome videos with Xiph’s Monty about digital media (which everyone interested in that topic should have watched by the way) I thought that it should be possible to visualize and sonify what exactly is lost during lossy compression. I wondered if I could create some form of diff between the source and the compressed audio. Turns out this is actually pretty easy.