Audio Volumes¶

AAudioVolume defines an acoustic region — reverb, occlusion, ambient zone settings. Crucial for indoor/outdoor transitions.

Settings groups¶

Group	Properties
Reverb	ReverbEffect asset, Volume, FadeTime
Submix Send	Per-submix routing & gain
Interior	Interior/Exterior LPF + Volume scales
Occlusion	Plugin (Steam Audio / built-in), trace channel
Ambient Zone	Source filter for `AmbientSound` actors

Priority¶

Higher-priority volumes override lower when overlapping. Use case: a small reverb-heavy room inside a larger building — set the room volume to higher priority.

Interior / Exterior model¶

Audio Volumes have interior and exterior modifier knobs. As the listener crosses the boundary, the audio engine cross-fades:

Sources inside the volume get the interior settings when the listener is outside
Sources outside get the exterior settings when the listener is inside

This is what makes "you can hear muffled music through the door" work naturally.

Reverb Effect assets¶

UReverbEffect — choose presets:

Preset	Use
Bathroom	Tile rooms
Stone Room	Caves
Auditorium	Large halls
Forest	Open outdoor
Underwater	Submerged

Or author custom IRs with the Convolution Reverb plugin.

Replication¶

Audio Volume membership is local — not replicated. Each client computes its own listener.