Source : Webster's Revised Unabridged Dictionary (1913)

Raspy \Rasp"y\, a.
   Like a rasp, or the sound made by a rasp; grating. --R. D.
   Blackmore.

Source : WordNet®

raspy
     adj : unpleasantly harsh or grating in sound; "a gravelly voice"
           [syn: {grating}, {gravel}, {gravelly}, {rasping}, {rough}]