Room acoustics design — reverberation time (Sabine/Eyring T60), absorption coefficients (NRC, SAA), room modes (axial, tangential, oblique), speech intelligibility (STI, RASTI, C80), noise criteria (NC, RC, NR curves), HVAC noise in rooms, isolation flanking paths, sound diffusion (QRD, skyline diffusers), flutter echo, early decay time (EDT), concert hall acoustics (LEDE, shoebox, vineyard), classroom acoustics (ANSI S12.60), and room acoustic simulation (ODEON, EASE).
