Can you hear me? I said: CAN YOU HEAR ME?Older people do experience hearing loss, though many don't call it that. Instead, they say other people mumble or don't speak loud enough. The trouble, they say, is with other people's voices. Well, in reality, up to half of the people now over 75 have age-related hearing loss and my guess is that when rock and rollers and the ear-budded MP3-ers get older, those numbers will go up.Are you losing some hearing? Here are some clues: People complain you turn the TV volume up too loud. It's hard to hear in …