blindness people

Dear Sirs, I am in Japanese university's(Rikkyo University in Tokyo) master course of mathmatics. And I am helping one blindness undergraduate student as part-time job. This is in the class of aplied mathmatics, and we use haskell to learn algorizm and so on. The problem is he (the blindness student) cannot use haskell in his home, becouse of his "reading-out-software" for blindness people. The school's reading-out-software "outSpoken" is available for haskell, but his one is not. So, I want to know the available reading out software. If you know, PLEASE tell me. Or some other information that you know, PLEASE tell me. Sincerly yours, jiro hiraike.