Using absorption coefficients for baffles in room acoustics simulations

Abstract

As consultants, we often find ourselves wondering how to apply sound absorption coefficients on simulated baffles. The reported coefficients are relative to the floor area represented by an assembly of several baffles, and these are often not spaced the same distance that will be used in a specific project. Furthermore, sound transmission through baffles without a hard core is not represented in the simulation. By modeling a lab scenario and reproducing the results of a number of measurements, we intend to create a best practice guide for using these coefficients in simulations.