In a recent piece on NPR's All Things Considered (which I heard on my way home today), I learned of something even might interest the Dunce.
A paper presented at a meeting of the Acoustical Society of America is offering a solution to the apparent growing problem of soccer fans chanting racist and anti-Semetic chants at European soccer games (this is an issue with World Cup beginning this week, thank you very much).
In it, the presenter offers his ingenius solution: confuse the chanters by creating an echo effect with the speakers. Record and play back the chants milliseconds, even a half a second, "off" the crowd's chants using recording and speaker systems in the stadium. He likens it to standing next to two people who are chanting at different speeds, and says that it tends to confuse one who is trying to keep up with the crowd by making it hard to tell what the crowd is actually doing.
"What we're doing is using loudspeakers to simulate out-of-synch chanters, people with no sense of rhythm," says the Dutch researcher, Sander van Weingarden (excuse the spelling, kids, I'm transcribing from radio) of the Netherlands Organization for Applied Scientific Research.
The best part is the actual solution -- while you suppress the offensive chant, you also try to start a new chant, something less offensive which is also "quite catchy" -- "Implanting a nice chant into the crowd while you're disrupting the offensive ones."
I'm interested to know how it works. Perhaps while the Noblesvillian is basking in European culture in upcoming days he can let me know.
Want to hear the piece? http://www.npr.org/templates/story/story.php?storyId=5450744. It's just the first part of the segment.