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The Audio Occlusion Plugin for Godot makes sounds in your game behave more realistically. When a sound is behind a wall, door, or obstacle, this plugin will automatically make it sound muffled or filtered—just like it would in real life.
It works by attaching an AudioOccluder (a Node3D) to any AudioStreamPlayer3D in your scene. The plugin calculates how sound would travel through the environment and adjusts the audio in real time, depending on what’s between the source and the listener.
To do this, it simplifies your world into a voxel grid—a 3D block-based map—and simulates how sound waves move through it. You can even preview how the plugin sees your world by enabling Voxel Preview in the Inspector (after activating the included plugin.gd).
You can easily customize settings like:
Range
Voxel resolution
Collision mask
Detection margin
The included example scene at res://addons/ovani_ao/example_scene/example.tscn shows how the plugin responds to different obstacles and how to set it up properly.
Whether your world is static or fully dynamic, the Audio Occlusion Plugin for Godot makes your audio more immersive—no extra work required.
Includes text and video documentation to help you get started fast.
