When you hear a car driving up from your left, the sound gets to your left ear a little before your right ear. Your brain figures out where a sound is coming from by comparing when the sounds reached each ear. Your brain does a lot of other stuff too, like use the way sound bounces off your ear, how loud it is, and how crisp the sound is to figure out where it came from.
When you put on a nice pair of headphones that are playing the same thing at the exact same time, your brain does the math. No difference in when the sound gets there? Must be directly in front of or behind me. Very crisp, no echoes from walls? Must be really close. No reverb off of my ear? Must be inside the head.
Latest Answers