Human factors affecting the acoustic measurement of rooms

Many sound systems are set up and equalised using measurements of the frequency response of the loudspeaker/room combination at one or more microphone positions. The results of these measurements, and the consequent applied equalisation, are dependent on the positioning of the microphones and the specific method used to adjust the equalisers. This paper investigates the variability in the frequency response measurements and equaliser settings that may occur when different people carry out what is ostensibly the same process. The results from both laboratory experiments and computer simulations are presented,and conclusions are drawn