Source : Webster's Revised Unabridged Dictionary (1913)

Throaty \Throat"y\, a.
   Guttural; hoarse; having a guttural voice. ``Hard, throaty
   words.'' --Howell.

Source : WordNet®

throaty
     adj : sounding as if pronounced low in the throat; "a rich throaty
           voice"
     [also: {throatiest}, {throatier}]