Sunday, August 26, 2012 1:13:28 AM
only problem I see is that the megaphone will not be able to amplify those kind of frequencies. But otherwise - great idea!
Monday, August 20, 2012 10:23:40 PM
BTW, If you're old (like me), and you want to hear with these things sound like, just drop the file into Audacity and slow it down by half (1 octave). Some of them are really obnoxious, like squealing brakes or fingernails on a chalkboard.