A University of Nottingham video explains the physics that underlies the technology being developed to filter out that annoying drone from 30,000 blasting vuvuzelas in the background of all World Cup football matches. It's interesting to note that this is the same sort of software technology that ornithologists use to record (and "clean up" background noise inadvertently captured by) birdsong recordings.
I think only losers don't like the vuvu. It drowns out the sound of their whining. See particularly english sports journalists and fans.