Atrium 3D Mixing Plugin by A2D Sound Brings Spatial Stereo
A2D Sound has officially released Atrium, an acoustic spatial mixing processor designed to place tracks across height, depth, and width while maintaining standard stereo output. The a2d sound atrium 3d mixing plugin introduces a virtual acoustic environment that delivers natural spatialization without requiring multi-speaker Dolby Atmos monitoring. Producers can pick up the plugin directly from A2D Sound during an introductory launch sale.
Spatial Placement in Standard Stereo
Traditional panning tools remain restricted to a single horizontal axis across two speakers. Atrium expands this workflow by offering four distinct spatial parameters for each channel:
- Azimuth: Standard left and right horizontal positioning.
- Depth: Proximity attenuation and reflection scaling that pushes tracks backward or brings them forward.
- Elevation: Vertical psychoacoustic placement that lifts elements off the stereo floor.
- Source Width: Adjustment of the initial stereo footprint before room spatialization.
Manipulating these coordinates allows mix engineers to tuck backing vocals deep into the background, lift leads above dense drum patterns, or separate competing midrange instruments without aggressive equalization.
Shared Acoustic Room Modeling
Instead of treating tracks with disjointed delay channels, Atrium routes elements through a shared virtual acoustic room. Mixers can define the room length and width, as well as apply distinct boundary materials. Available wall materials include concrete, glass, hardwood, heavy velvet, marble, plywood, fiberglass, ceramic tile, steel plate, and exposed rock.
Soft surfaces like heavy velvet keep reflections dry and focused, while hard materials like concrete generate noticeable acoustic resonance. The plugin includes 23 room presets categorized across drums, full band, vocal, orchestra, and electronic setups.
An expandable Advanced drawer provides precise control over tail decay, shared room reflections, and stereo field preservation. Engineers can keep low-end frequencies centered and mono-compatible while spreading high-frequency reflections across the soundstage.
System Compatibility and Specifications
- Formats: VST3, AU, AAX
- Operating Systems: macOS and Windows (64-bit)
- Channel Configuration: Stereo input and output
- Hardware: Fully compatible with standard headphones and regular stereo monitors
Atrium is available now for $69 (down from its regular $149 price tag) alongside an unrestricted seven-day free trial on the A2D Sound website. Mixers seeking deeper soundstages without migrating to complex immersive formats will find it a capable addition to their signal chain.
Download the free trial or purchase Atrium directly through the developer storefront.
FAQ
Do I need a multi-speaker Atmos setup to use Atrium?
No, Atrium is designed specifically to output standard two-channel stereo that translates cleanly across regular headphones and studio monitors.
What plugin formats are provided with Atrium?
Atrium comes in VST3, AU, and AAX formats for compatible 64-bit DAWs on Windows and macOS.
Does Atrium offer a free demo version?
A fully functional seven-day free trial is available directly from the developer with no feature limitations.