Visualizing sound - Cymatics

First time I've ever heard of cymatics and I am intrigued. basically you use some (physical) devices to visualize soundwaves. Here is a small TED presentation about it:



My question is simple: can this be used to "understand" sounds for deaf people or are the pattern transitions too complex? googling for cymatics I've found a lot of videos about water and cornstarch moved by sound and links to "sound healing" and even some technical papers that never seem to have left academia. I think this could be interesting enough to emulate on a computer, yet I have not found code for it yet.