I did tune in to Rush briefly last week at some point and could hear that he doesn’t have feedback on his voice sound any more. He had a booming, lower radio voice, but he needs a friend to give him feedback, maybe per segment or per hour, so he knows when he is pressing or squeezing his larynx too hard and thus making his register go up, sounding too high and too pressured. Heavy men as they age need to worry about all that estrogen, which also raises the voice higher.
He could be modulating his voice better; as the daughter of an audiologist I understand that he personally can’t use hearing to biofeedback himself, so he needs a good friend to tell him to relax his voice sometimes, when he is focused on the content of his speech and not his vocal sounds. He needs people to tell him he is sniffing or making other unpleasant sounds too much as well. For the money he wants in July, he really should make that effort.
THe guys is basically deaf as well.