Hello all, I'm in the process of teaching my father how to use his new Ipad mini, but he has bad hearing and can not hear the keyboard clicks when he's typing. Since the touch screen is so sensitive he quite often double clicks or unintentionally clicks on the wrong characters and doesn't notice it. Consequently he enters wrong passwords and other information causing him much frustration. I turned up the volume all the way but he still doesn't hear it. Is there a way for me to replace the keyboard sound with my own sound? Thanks ahead of time for any input.