Take a Google virtual tour of 1871, a digital startup incubator inside Chicago's Merchandise Mart. The facility is outfitted with numerous sound dome directional speakers to keep audio focused to specified zones. Techvibes describes the application:

“Four screens along the wall invite passers-by to stop and experience each unique installation: Soundscapes emit from overhead domes paired with images on the screen, immersing the viewer in a different reality. A surprisingly quiet collaboration space overlooks the stairwell where teams breakout to enjoy the natural night.”

In addition to the tour, you can view more installation photos here: