Audio Test Setup for EMC Interference Assessment by Listeners

Abstract

The proposed setup is intended to support vehicle emission measurements as an additional method since there are sometimes differences between detector readings and impressions on a listening person, depending although on the specific radio receiver, of course. This subjective audio test setup is capable of determining electromagnetic interferences in the acoustic base band and to pinpoint the necessary attenuation of the interference to get an interference-free broadcast reception. The suitability is demonstrated with examples of amplitude and frequency modulated signals.