The difficulties of simulating the acoustics of an empty rectangular room with an absorbing ceiling

Abstract

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Improved Room Acoustics Quality in Meeting Rooms: Investigation on the Optimal Configurations of Sound-Absorptive and Sound-Diffusive Panels

“…On the other side, it has been concluded that the simulation of a small rectangular room with an absorbing ceiling and low scattering is inaccurate both with energy based GA simulation, i.e., ODEON, and with GA simulation which includes phase shifts on specular reflections in order to model the acoustics of the room below the Schroeder frequency [44].…”

Experimental validation and uncertainty quantification in wave-based computational room acoustics

“…We apply the comprehensive validation and uncertainty quantification (VUQ) framework to a simple test case of a small rectangular room with two types of boundaries: bare concrete walls on five of the surfaces, and with the sixth surface being covered by a porous material mounted on rigid backing. Previous work has indicated that this type of room is particularly diffi-cult to simulate with high precision [16]. Experiments are carried out to serve as a ground truth reference, which the simulations are compared against.…”