Sound Neutralzing Technology 'Confuses' Abusive/Racist Chants at Stadiums

we-make-money-not-art.com — During tests of the prototype system, volunteers were surrounded by loudspeakers simulating the sound of a chanting crowd and were asked join in. But one speaker replayed the crowds chant with a short delay. When the delay was greater than 200 milliseconds the volunteers found it too difficult to chant coherently May 15, 2006 View in Crawl 4