Performance of a New 100 000-cu ft Reverberation Room

Abstract

This paper describes the design requirements for and performance of a 100 000-cu ft reverberation room designed and built by Wyle Laboratories in Huntsville, Alabama. The walls were designed to withstand a 165-dB sinusoid at the resonant frequency expected to give maximum stress and fatigue. The fundamental resonance of the room occurs at 9.6 cps. Above this frequency, the modal density increases, averaging and increasing approximately with the square of frequency above 25 cps. The paper reviews the frequency response characteristics, spatial correlation in various bandwidths, and the amplitude distribution in the room for both high- and low-intensity sound.