Freeware - Spatial Audio Real-time Applications (SPARTA)

http://research.spa.aalto.fi/projects/sparta_vsts/

SPARTA is a collection of flexible VST audio plug-ins for spatial audio production, reproduction and visualisation, developed primarily by members of the Acoustics Lab at Aalto University, Finland. The SPARTA installer also includes the COMPASS suite, CroPaC Binaural Decoder, and the HO-SIRR room impulse response renderer.