Sound measurements based on features of the human hearing system

Abstract

The state of the art of measurement systems to evaluate sound emissions in view of sound quality is reviewed.With respect to subjective evaluations of noise immissions, data for road, rail, and aircraft noise are compared.Physical measures for noise immissions based on features of the human hearing system are discussed in view of stability and economy of measurement time.The basic features of a method to predict noise immissions, also for future means of transportation(e.g.magnetic levitation train)are outlined.