How does a headphone turn signals into sound?
Magnet Air-Catch
How does a headphone turn signals into sound?
You slip on your headphones, press play, and suddenly music fills your ears. But here's the weird part: a second ago, that song was just electricity zipping through a wire. How did invisible electric signals turn into actual sound you can hear?
Inside each earpiece lives a hidden magician: a speaker driver. It's a thin disk about the size of a quarter, and its job is to push air. Why air? Because sound IS moving air. When air vibrates fast enough, your eardrums feel it as sound.
