I actually played with doing the opposite when I was in high school: photoshop had a "RAW" file format plugin which let you specify the offset past the header a

I actually played with doing the opposite when I was in high school: photoshop had a "RAW" file format plugin which let you specify the offset past the header and the bitmap data stride, height, width, and pixel format. You could open a WAV file as a Nx1 bitmap and then apply filters to it and get some interesting effects when saved back out and played in an audio player.