What is the difference between analog and digital hearing aids?

A digital hearing aid does more work than an analog hearing aid. An analog hearing aid will respond to the volume and frequency of the incoming signal whereas a digital hearing aid will respond to the volume, frequency and duration of the signal. A digital hearing aid can perform an analysis of the signal and attempt to determine whether it sounds more like noise or speech so that speech is easier to understand in various settings.

For more information go to www.audiology.org and click on consumer resources.