Control Zones in Acoustic Ray Tracing for Unreal

In practice, you may find that using only the materials to adjust acoustics is not intuitive, requires a lot of manual work, or too many iterations to adjust the reverb to your liking. To solve this issue, there is a second, more direct way of adjusting the acoustics for specific areas of the scene, using a “Meta XR Acoustic Control Zone”. It is a basic Aactor which can be added to your level.

The position, rotation, and scale of the control zone is defined by the Transform on the zone. It defines a box-shaped zone where the reverb properties can be adjusted relative to the simulated acoustics. The control zone provides direct, frequency-dependent adjustment to the reverberation time (RT60) and reverb wet level, using a spectrum curve editor similar to the materials.

This script can be used in conjunction with Material scripts to just provide some higher level fine tuning, or it can be used independently without any materials for a simplified tuning experience. Unlike materials, it does not require baking any acoustic geometries or acoustic maps in order to hear the results instantly. You can also edit the control zone parameters in real time while in play mode for an easy acoustic tuning experience.

Learn about another option for fine tuning the reverb: Meta XR Acoustic Material Learn about other controls you can adjust in the project settings: Meta XR Acoustics Project Settings