The Cicadas are tiny robotic insects, each one capable of a unique "call" tone, that can take part in different types of sound installations.
"Building an artificial soundscape" is a video documentation about the first breed of Cicadas, caught while busily creating a new, mediterranean soundscape for the Hasenheide Park in Berlin.
The Cicadas are built and programmed by Michele Pedrazzi, a.k.a. Bob Meanza.
For more details on the artwork's philosphy and technical background: