Born nearly deaf, he wears hearing aids and reads lips to understand his teammates.
Paul wears hearing aids in both ears, and has been included by Time magazine as one of the world's most influential people for 2013.
He was legally deaf and wore hearing aids for most of his life.
Petty also remembered raising his voice somewhat to speak to the President, because both of them wore hearing aids in each ear.
"A good many people wear hearing aids and glasses, and no one minds."
She always wears hearing aids and can also read lips, though some people still think of her as deaf.
It was impossible not to listen in; three of them wore hearing aids.
I don't like background music at the best of times either as I'm deaf and wear hearing aids in both ears.
"I thought, Now I'm going to wear hearing aids and be the head of a record company," he said.
And I noticed there are quite a number of people who wear hearing aids.