Meta XR Audio SDK sample

Updated: May 11, 2026

Overview

The Meta XR Audio SDK sample provides six audio demo levels plus a MainLevel hub to demonstrate spatialized audio features in Unreal Engine. Each level showcases a different audio capability using asset-based configuration through MetaXRAudioSourceSettings and MetaXRAttenuation.

View the sample source code on GitHub⁠.

What you will learn

HRTF-based spatialization with A/B comparison

Ambisonics soundfield rendering

Source directivity and radiation patterns

Room acoustics and reverb simulation

Volumetric audio sources

Asset-based audio configuration

Requirements

Meta Quest 2, Quest 3, or Quest 3S

Windows PC with UE 5.4

Meta XR Audio plugin

Get started

Clone the repository.

Install the Meta XR Audio plugin.

Open the project in UE 5.4.

Launch the MainLevel to access the hub and navigate between demo levels.

Explore the sample

File / Scene	What it demonstrates	Key concepts
AmbisonicsLevel	Soundfield rendering	Ambisonics playback and rotation
DirectivityLevel	Radiation patterns	Source directivity shaping
HRTFIntensityLevel	A/B comparison	HRTF spatialization toggling
PointSourceLevel	Basic spatialization	Point source positioning
RoomAcousticsLevel	Reverb simulation	Room acoustics with ReverbLevel=5.0
VolumetricLevel	Volumetric sources	C++ HelicopterController with async physics
MainLevel	Hub navigation	Level streaming and demo selection

Runtime behavior

The MainLevel serves as a hub where users can teleport to individual demo levels. Each level isolates a specific audio feature for clear demonstration. Audio configuration is driven by MetaXRAudioSourceSettings and MetaXRAttenuation assets. The global VoiceLimit is set to 64.

Key concepts

Asset-based audio configuration

Audio sources are configured using MetaXRAudioSourceSettings assets rather than per-instance parameters, enabling reuse and consistent behavior across the project.

VoiceLimit=64
ReverbLevel=5.0

Volumetric sources

The VolumetricLevel demonstrates spatially extended audio sources using a C++ HelicopterController that drives source position with async physics simulation.