DIGITAL hearing aids can do wonders for faded hearing. But other devices
can help, too, as audio technology adds new options to help people
converse at a noisy restaurant, or talk quietly with a pharmacist at a
crowded drugstore counter. Read about
how technology is helping Richard Einhorn, a composer who suddenly lost
much of his hearing two years ago. He pops on a pair of in-ear earphones
and snaps a directional mike on his iPhone, which has an app to amplify
and process sound.