SUBJECTIVE ASSESSMENT OF TONAL IMPAIRMENT IN NOISE INTERFERENCE WITH WIRE BROADCAST CAUSED BY A.C.ELECTRIFIED RAILWAY

摘要

This paper presents the simulation experiment method and concrete implement of subjective assessment (SA) of tonal impairment (TI) in noise interference (NI) with wire broadcast (WB) caused by A.C.electrified railway (ER).Eightfold experiments of SA are organized,in which eighty listeners participated,including ten specialists.The experiments show that the method of SA is scientific and the obtained results are reasonable.This work provides reliable basis for establishing a permissible standard in NI with (WB) caused by strong supply lines.