Yes congenital muteness does exist.
The voice you were born with - each of us has his/her "normal voice".
Eric Voice was born on 1924-06-02.
Barbara Voice was born on August 5, 1981, in Budapest, Hungary.
Saki Nakajima - voice actress - was born in 1978.
Sumie Sakai - voice actress - was born in 1945.
Eddie Eagle - voice actor - was born in 1957.
Satoko Yamano - voice actress - was born in 1963.
Mai Goto - voice actress - was born in 1982.
Naoko Watanabe - voice actress - was born in 1959.
Kevin Miller - voice actor - was born in 1977.
Jack Curtis - voice actor - was born in 1926.
Joan Gardner - voice specialist - was born in 1926.