Geografia Sonora is a sound and video installation on the theme of the sea; an archipelago of "sound islands", a "chorus" of voices, sound signals, as well as natural and mechanical sounds from countries bordering the Mediterranean. The sea breathes, changes in colour, luminosity and density and becomes a constellation of lights. The video image is the result of a continuous changing of a sparkling sea. The image and the soundscape are generated in real time ad infinitum by computer. A map and a collection of sounds from the Mediterranean Sea.