This how-to video shows you how to reduce the "s" sound in a certain recording software program. They play a line a music where the singer emphasizes on her "s" sounds. The tutorial shows you how to reduce the "s" sound so that it clear and sharp. It also shows you how to change the frequency and the compression of the "s" sounds. The video explained that if you make the compression too high, than the "s" sounds will sound like a lisp.