How was this made?:
Photoshop mainly...a RAW file can be opened several different ways, pixel dimensions, dpi and colour channel settings all determine the result. So I make a load of different images, convert them into audio, process the audio, convert back to RAW back and forth, then composite bits of the more interesting ones into a new image file. Trial and error meets tedium and persistence, realise they have a lot in common, and have a pixel party.