What is spatial audio?
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Here is (approximately) how it’s done
If you are out in the open, and there’s a sound to your right, you don’t only hear it in your right ear – you hear it in both ears. So in headphones you can’t just put some audio on the right hand side and expect that to sound right. In real life you’ll hear it also with your left ear – there will be a slight delay and it will be less loud because it’s partially blocked by your head.
So spatial audio uses sort of a physical model of a head and ears to try to reproduce how a sound that is a specific distance and direction from you would sound if you were to actually hear it in the real world.
It can be difficult often to distinguish between a sound that is in front or behind you in spatial audio, but that’s also fairly true in real life.
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