Two videos showing the Brandeis University siren tests of September 9, 2009. We have an ATI system, and you're basically hearing two different sirens in these videos. I apologize for my constant talking so close to the mic. I suppose I was just excited, this being my first true siren test recording.
Warning tone: http://s186.photobucket.com/albums/x281 ... V04994.flv
All Clear tone: http://s186.photobucket.com/albums/x281 ... V04995.flv