According to audiogram, we prescribe the gain at several key
frequency, that is the base of our frequency fitting. So how to do
I have heard some words like 'gain between one-third and one-half of
hearing loss', and some methods like, Berger, NAL, POGO, Libby,
Keller. are those the formulae implimented in practice? how to do ?
what is the detail?
Hope to get your help.