Reduced Order Modeling (ROM) of Room Acoustic Simulations

Structure-preserving model-order reduction for time-domain room acoustics based on the Linearized Euler Equations. The approach maintains numerical stability at complex frequency-dependent boundaries while dramatically reducing computation time.

The new full-order formulation achieves a 3.5× speedup over the conventional approach. When combined with the reduced-order model, total speedup reaches 100× — making wave-based acoustic simulation practical for interactive applications and room design.