I suppose they could also some of the technology they use in recording studios and other places that would give him visual clues to his tone, volume etc. That would include things like a wave form of the voice as well as displays of the volumes of the various octaves and total volume. It's not perfect but it would give him with training part of the feedback that the hearing have automatically. He’d have to work with a voice coach for a while before it really started to help and the voice coach probably would have to be there during each segment of the show to go over each segment during the breaks and then the whole show afterwards on a daily baisis. Rush is a perfectionist and a hard worker so something like that would be well within his capability. It would also help him when he’s not on the show.
He's also going to have to lean sign language as well as to read lips.
I am extremely hard of hearing and my voice is impeccable and I can follow lips. As bad as it sounds people can adjust to anything given enough time to do it in. And Rush will bounce back from this --- he's always been an incorrigible optimist and now he's also a leading example to millions of deaf and hard of hearing Americans that if he can do it so can they. There's always a silver lining in a dark cloud and I'm sure we'll be discovering Rush talk about how people can make others forget they even have a handicap in the weeks and months to come. And Rush is so talented at what he does people will forgive the fact he's not perfect since he works hard at what he does and it shows.
GOD BLESS AMERICA AND SUPPORT OUR TROOPS!!!