What’s the difference between spatial audio and binaural sound?
Spatial audio is when you listen to 3D sound on a loudspeaker it also includes listening to 3D sound on some headphones. But if listen to 3D sound on just headphones it is referred to as binaural sound.
Here are some examples, wear your headphones!
Rob Da Bank’s headphone special – Recorded in 3D. http://www.bbc.co.uk/programmes/p015njlg
BBC Proms recorded in binaural sound. http://www.bbc.co.uk/programmes/p05fyxy0
How is this 3D sound created?
This video by The Verge explains: https://www.youtube.com/watch?v=Yd5i7TlpzCk
Example of object-based audio
Object-based audio is one-way spatial audio is used in media. Here’s an example: https://the-mermaids-tears.pilots.bbcconnectedstudio.co.uk/listening. The audio “objects”, individual actors, spot effects and atmos mics, are fed to the home as one continuous data stream. The producer has decided during the mix where each object is to be placed around the listener.
Why use it?
Immersion, the listener is brought further into the heart of the story and triggering greater thrills and connections to the scene. This drags the listener in and if used with video is even more effective. We hear a great deal with our eyes! Get actors to look off screen behind the viewer and place a sound behind them, and the binaural effect is very powerful.
“Binaural audio has grown in popularity due to one huge thing VR, Virtual Reality”