Via traingulationblog.com:

Shift, an interactive audio visual installation created by Media Lab in 2011.
“Shift is an array of machines shifting bits and bytes informed by simple and highly repetitive algorithms. Shift pays attention to its environment through the ever-watchful eye of a built-in camera and responds to movement. Changes in state are expressed through audio and visual abstractions.” See more;

“During the exhibition, the audience was able to interact with Shift through the build in web-camera of each individual computer. Activity sensed by the camera would result in visual and audible changes animating the audience to further explore the underlying system of the work through different forms of gestures.

Read more.