Resonance Audio
Resonance Audio steering committee
Resonance Audio is an open-source spatial-audio SDK originally developed by Google and released as open source in March 2018. It provides high-fidelity Ambisonic-based spatial audio rendering optimised for mobile and desktop CPUs, including encoding and decoding of Ambisonics (AmbiX ACN/SN3D, compatible with the YouTube spatial-audio decoder), HRTF-based binaural rendering, sound-source directivity, near-field rendering, occlusion, and a Spectral Reverb effect. Distributed as native libraries pl

History & Background
Originally a Google product (launched 2017, open-sourced March 2018 under Apache 2.0). After open-sourcing, governance transferred to a multi-vendor steering committee with Unity, Epic, Firelight (FMOD), and Audiokinetic (Wwise) as project committers. Source code and SDKs remain available at github.com/resonance-audio. Use in mobile platforms previously also relied on Google VR Services, which Google ended for new users in November 2023.

