Statistical relations among architectural features and objective acoustical measurements of concert halls

Abstract

A statistical analysis of architectural features and detailed objective acoustical measurements made in eight concert halls and several multi-use rooms in their concert configuration will be presented. A method for evaluating the architectural features of rooms that affect their acoustical properties was developed. Architectural features of interest include both room average values and more-detailed subdivisions of surfaces including shape, volume, height, width, and sound absorption properties of materials. Regression modeling was performed for individual source–receiver paths as well as for entire rooms. Measurements data from all three teams were used in the models to assess the sensitivity of the models to expect variations in measurements. The results were compared to the previous work of Barron, Gade, and Hook among others. [Work supported by the National Science Foundation and Concert Hall Research Group.]