On Wed, 27 Feb 2008 18:47:39 -0800 (PST), "
wrote:

By this weekend, I need to be able to explain what sound I am hearing
to someone who isn't a broadcaster or associated with radio / audio in
any way. How can I explain to someone what it sounds like when you
are speaking into a mic -- hooked up to an audio board - and you pin
the needle in the red. You know, you get that high pitched kind of
flat sound ?? I don't know how to explain it to someone who has never
heard what that sounds like?? Can someone suggest an explanation that
would make sennse to non-radio people?? Thanks.

How about "it sounds like yelling through a kazoo"?