Mad sounds in 4DTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoCarl Nasman, Amsterdam12/19/2014December 19, 2014The 4D sound system allows you to experience music or other sounds in 3 dimensions, plus the 4th dimension, which is time. It goes beyond stereo or surround sound, placing sound in a physical space. But is it a gimmick?https://p.dw.com/p/1E7cNAdvertisement