Google has been on a roll open sourcing stuff lately. First, it was the tech behind Portrait Mode, and now its the spatial audio SDK Resonance Audio.
Resonance Audio was launched last year and is aimed at making it easier for developers to deliver more convincing surround sound experiences in their VR and AR apps. The kit is based on Google's multi-platform VR Audio SDK, but really tries to improve on its foundation and make cross-platform development a lot easier with platform-specific documentation on how to implement all features properly.
Now that Resonance Audio has been open sourced, developers can freely integrate it into their projects to make cross-platform developing of AR/VR experiences a lotsimpler.
Gear VR and Daydream users may have already experienced Resonance Audio in recent apps like Pixar's Coco VR, Disney's Star Wars: Jedi Challenges AR, and Runaway's Flutter VR.