by Victor X
AKA Bitmap Player
This simple program converts bitmap images to sounds, and vice versa. Every line of loaded image is assumed to be a spectrum of sound, and it is converted to sound signal by means of inverse Fourie transform, or ...
Additional features, like image filtering and picture morphing, having sound morphing in mind, are available.
There are screenshots with author's comments here.
Signal processing basics and how they are used in the program are briefly described here.
To use JPEG images as sources, download and uncompress the JPEG library (863K) to the directory where the executable is placed.
A command-line utility with similar functionality for Ubuntu is available here