Pocket-Lint: The world is a noisy place. Even when you think it’s quiet, it’s not. What can you hear around you now? The hum of a refrigerator, the whirr of your computer fan, voices across an office, phones ringing, the sound of the traffic, the low buzz of a fluorescent strip light, a plane flying overhead, the birds tweeting in the trees, a ticking clock? Unless you’re living out in desert, chances are your ears are witness to a veritable cacophony, and guess what? They’re getting tired.