I have seen this sound description mentioned numerous times, what exactly is it?
Denny
It is when a call goes from high pitch to raspy in a yelp.
Also known as break in a pot or break in the yelp.
People often talk about the pitch in the front end and rasp in the back, viewing a yelp as a two part call.
Listen to Sadler:
http://www.youtube.com/watch?v=gJ87X0xI8KM
Thanks for the explanation