Digital Hearing Aids: Just Like Your CD Player

If you've experienced hearing loss, you've probably thought about getting a hearing aid, or perhaps you already have one. The most common way hearing aids work these days is not by directly amplifying the sounds around you, but rather, converting them into digital code--a series of numbers, essentially--and then re-converting the digital code into audio signals. This is exactly what a CD player does--it reads the numbers on the disc and then converts them into audio signals.