Spatial Audio Extended 2.3.9 3D Tools 4.6 Community

Submitted by user Dani_kakes; MIT; 2026-02-23

~ Volume Attenuation — Multiple falloff curves (Linear, Logarithmic, Inverse, Natural Sound, and user-defined) with configurable inner and outer radii.
~ Room Size Reverb — Omni-directional raycasts estimate room geometry and apply reverb automatically. Works in real time as the player moves between spaces.
~ Wall Occlusion — Multi-wall detection with material-based lowpass filtering and volume reduction. Sounds become progressively more muffled behind each wall.
~ Air Absorption — Distance-based high-frequency rolloff simulating how air attenuates sound over long distances.
~ Sound Speed Delay — Realistic propagation delay for one-shot sounds. Fire a gunshot across a valley and hear it arrive a moment later.
~ Acoustic Materials — Physics-based surface properties (absorption, scattering, transmission) with 11 built-in presets covering brick, concrete, carpet, glass, wood, metal, and more.
~ Debug Overlay — On-screen HUD, in-editor ray visualization, radius wireframes, and a live A/B effect toggle.
~ Rich Signals — Zone transitions, occlusion events, reverb updates, air absorption changes, playback state, and diagnostic data.