Making Audio Waves That Look and Sound Like Things

Japhy Riddle shows how to shape audio so that its waveform looks like an object when plotted while it still sounds like it, such as a cow. It touches on spectrograms and 3D waveform illusions.

HN people share it as a delightful demonstration of sound that is also a picture, and point to it from threads on spectrogram images and waveform rendering.

“Basically this is what you want to see (and hear)”