Seeing by sound technology developed by Peter Meijer, a Dutch scientist, is now available as a free download on his website. It configures signals from a video camera processed via a computer into a series of sounds. To the untrained ear it sounds like a series of roars hisses and bleeps, but with a little time users begin to discern shapes and shadows based on the texture and density of the soundscape. Users report remarkable adaptation, saying they can see shapes as distinct as a coke bottle or discern a soccer ball from a rugby ball. Article