The famed writer's voice can be heard as a special feature on the Criterion Collection disc of Wise Blood, the 1979 film adaptation of O'Connor's 1952 novel. In the rare archival recording, O'Connor is reading her 1953 short story, "A Good Man Is Hard to Find." This audio file is the only known recording of the late author of Southern Gothic literature reading her work. You can listen to it HERE.
Above portrait of Flannery O'Connor via http://wehavebeards.com