Rahul Kanegaonkar & James Tysome 
Hearing [PDF ebook] 
An Introduction & Practical Guide

Hearing is essential for normal communication. We are able to localise sound with surprising accuracy and can detect time differences as small as the time it takes for sound to pass from the mouth of one person to the ear of another. However, hearing loss is underdiagnosed, poorly understood and a common cause of social isolation. Hearing: An Intro