Resonance Audio for Wwise abandoned

Meta XR Audio SDK Plug-in for Wwise

Wwise · Unity

The Meta XR Audio SDK Wwise plug-in bridges Wwise's audio pipeline with Meta's spatial audio and room acoustics engine in Unity projects. It provides HRTF-based spatialization and geometry-driven early reflections and reverberation tuned for Meta Quest hardware, without requiring replacement of Wwise as the runtime audio middleware. Integration targets Unity projects that already use the Wwise Unity Integration, adding Meta-specific spatializer and room acoustics components as Wwise plug-in effects. Spatial mix decisions — source positioning, room material properties — remain inside Wwise's signal chain rather than bypassing it. The plug-in is also referred to in Meta documentation as the Presence Platform Audio SDK Plug-in for Wwise.

Resonance Audio

Unity · Wwise · FMOD · Standalone

Resonance Audio is a spatial audio SDK that provides HRTF-based binaural rendering, ambisonic encoding/decoding, and room modeling. Originally developed by Google and released as open source, it offers cross-platform support with integrations for Unity, Wwise, FMOD, and VST. The SDK includes tools for geometrical acoustics simulation, reverberation estimation from game geometry, and ambisonic soundfield capture. It supports first-order and higher-order ambisonics, room effects modeling, and binaural rendering using the SADIE HRTF database. The codebase is written in C++ and provides bindings for multiple platforms including desktop, mobile (Android/iOS), and various audio middleware systems. Note: Google archived the GitHub repository in November 2023, so it is no longer actively maintained, though all source code, build scripts, and platform integrations remain available under an open source license.

libmysofa

Standalone

libmysofa is a C library for reading and processing Head-Related Transfer Function (HRTF) data stored in AES SOFA files conforming to the AES69-2015 standard. It provides functions to load SOFA files, extract HRTF filters for specific spatial coordinates, and convert between Cartesian and spherical coordinate systems. The library handles automatic normalization of HRTF data, nearest-neighbor interpolation for arbitrary listener positions, and efficient caching of multiple SOFA files. It supports both integer and floating-point filter extraction with configurable sample rates and neighbor search parameters. Designed for integration into spatial audio engines and renderers, libmysofa offers both simple and advanced APIs for developers who need direct access to HRTF data without implementing SOFA parsing from scratch.

Microsoft Spatializer

Unity

A cross-platform spatializer plugin that integrates spatial audio processing into Unity projects. The plugin uses efficient DSP algorithms to render head-related transfer functions (HRTF) for immersive 3D audio positioning. Designed to fit Unity's audio engine architecture, it supports both Windows and Android platforms. Version 2.0 represents a complete rewrite focused on performance optimization and cross-platform compatibility. The plugin uses a multi-source mixer architecture that reduces CPU overhead compared to previous implementations. While an older HoloLens 2-specific version (v1) offered hardware DSP offload, the current version prioritizes flexibility and integration with Unity's audio pipeline. Note: the GitHub repository was archived (made read-only) in July 2024 and is no longer actively developed, though it remains usable for existing projects. It enables realistic directional audio cues essential for VR, AR, and immersive gaming experiences.