Acoustical model studies

Abstract

A dedicated, computer-based analysis system was developed to perform a variety of acoustical measurements in full-size rooms and in scale models. Measurements made in 1:10, 1:24, and 1:40 scale models of a band rehearsal room and a 1500-seat, multi-use theater were compared to measurements made at equivalent locations in the full-size rooms. The models were filled with nitrogen to examine the effect of air absorption on the measurements. The room was also simulated with a popular computer program with a ray-tracing program. An expanded program was written to calculate several objective parameters from the computer model. These results were compared to the measurements made in the physical models and the full-size room.