ELI5: Explain Like I'm 5

Binaural recording

Binaural recording is a way of capturing sound that makes you feel like you're really there. Imagine you're playing with your toys in your room, and you hear a firetruck outside. When you run to the window to see the firetruck, you notice that the sound is coming from one side of your head more than the other. That's because your ears are like two 'microphones' that hear sound differently. Your brain uses this difference in sound to understand where the sound is coming from.

Binaural recording works in a similar way. A special microphone set-up, designed to look like human ears, is placed on either side of a dummy head or a real person's head. The microphones capture sound just like your two ears do, and the recording equipment creates a 3D sound image that makes you feel like you're really there. When you listen to the binaural recording using headphones, the left and right channels of the sound are separated, just like what happens when you hear with your ears. This gives the feeling of being in the same location as the sound, and you can hear it as if you were really there.

Binaural recording is great for making music sound more immersive or creating a realistic listening experience in movies, video games, or virtual reality. It can also be used to capture the sounds of the environment, for instance, recording nature sounds, city sounds, or ambient noise. Listening to binaural recordings can be a fun and fascinating experience, giving you the chance to explore new sounds and feel like you're really there.