Taking any old picture and seeing it represented as sound waves is cool in the first place but University student Jamie Boulton has put together some documentation on the crazy effects that you can get with manipulating image as sound along with instructions on how to make your own! You can download Audacity which is a free sound editing software and get crackin' on your own psychedelic effects.
Boulton shares all his cool methods for creating the glitch-tastic art and even his "eye-melting GIFs". He calls his craft "data bending" which he explains on his site. I'll leave you with an example or two and left you explore the rest!