OpenAL is a special software that helps your computer and other devices to create and play sounds in 3D. Imagine you are in a big room and someone is talking in front of you. You can tell where the person is by hearing the sound from their voice. OpenAL does the same thing with sounds in your favorite video games, movies, and music.
It helps you hear the sounds as if they are coming from different directions and distances. For example, if a bullet is flying past you in a game, OpenAL will make it sound like it's going from your left ear to your right ear, just like in real life!
OpenAL works by using special tools that can change the sounds based on your computer settings and the different audio devices connected to it. This makes it possible for you to hear the sounds clearly and realistically, even if you are using different speakers or headphones.
So, in simpler terms, OpenAL helps your computer make cool, realistic sounds that make video games and movies sound super cool and realistic.