Mechanical noise control case studies

Abstract

A few case studies of mechanical system noise are presented. These address before/after background sound levels associated with room and/or mechanical system modifications, comparison of predicted mechanical system noise to measured values, our approach to noise control recommendations, and lessons learned. Interesting cases include a college theater renovation, office noise control involving implementation of a fan array and a VFD, and a challenging hunt for the source of an exterior pharmaceutical campus noise source generating complaints in a nearby neighborhood.