The sound absorption of an audience on unupholstered seating

The sound absorption of an audience on unupholstered seating as determined by acoustic scale model techniques is reported. The model auditor used was developed to simulate a seated person dressed in light to medium weight clothing. The variables examined are seating density, seating rake, perimeter per unit area of seating block, edge absorption and selective low frequency absorption. Tables are given for determining the total absorption of an audience based on the above variables.