Sound isolation rating system for use when the sound source is music, machinery, or mechanical equipment

Abstract

A rating system is presented for use in the selection of sound isolating components when the sound source is music, machinery, or mechanical equipment. The rating system described is complementary to the STC rating system which works well as a tool for simplifying the selection of components for the isolation of “speech like” sound sources. It is possible by considering both rating numbers to more accurately, and yet simply, compare and evaluate different construction systems as to their appropriateness for the intended use.