That isn't how New Englanders talk. That is how Massachusetts folk, especially Boston, pronounce it. But remember that Boston is a whole nother world. We don't even consider it part of New England.
WRONG-
I am from ME, NH , VT and yes, that is HOW THEY TALK. I had to retrain myself when I moved 3 thousand miles away. I always know whether I visit Iowa, Texas, Florida or Nevada or California when I hear that accept. I say New England? and folks say YES. Then we talk about what we miss, for foods, the state of baseball, and the weather.
and, hen I am on the phone with someone, the accent comes back thick and fast.