A sound coming from your left will reach your left ear faster and with more intensity than it will reach your right ear.Your brain can use these two facts to compute the location of the sound's source.

Question

Quizplus · Accepted Answer

This is known as the interaural time difference and interaural level difference, which are cues that the brain uses to determine the location of a sound source in space.

A Sound Coming from Your Left Will Reach Your Left