Harsh Digital Nose is a virtual instrument plug-in for Windows and Mac.
Plays two images (very poorly) as oscillator waveforms. The brightness of each pixel, starting at the top left, sets the amplitude of each sample.
Load images (png, jpg, gif) by drag & drop. Also converts wav files (32-bit float, 65536 samples long) to images by drag & drop.
From left to right, the controls are: