I've been using the Apple EarPods with my MacBook Air for a while now. Since recently, they have been producing a very faint buzzing in the left earbud when I'm not touching the computer.
However, when I touch the areas around the keyboard, Trackpad, and screen bezel, the buzzing stops. But as soon as I take my hand off the aluminium unibody or the bezel, it starts buzzing again. Even if I touch the body very lightly, such as the very tip of my finger, it stops.
That being said, what's happening and how do I stop the buzzing in that ear altogether?