The Spatialize Stereo toggle only affects stereo tracks. All compatible Spatial Audio tracks will automatically play to both users without any configuration after pairing both sets of headphones.

Generic HRTFs are also used to spatialize stereo content or improve head-tracked spatial audio. If your music app, wireless headphones, or wireless earbuds have a spatial sound mode, it can be ...

Immersive Audio works with everything, no matter where you’re playing it from. Like most implementations of spatial audio, Bose’s version takes the stock tuning and makes it louder.