white noise

1. N-UNCOUNT White noise is a continuous "sh" sound, caused by many frequencies of equal intensity. 白噪音; 許多頻率不同但強度相等的混郃襍音

They were made to listen to white noise, such as static of the sort you might pick up between radio stations. 他們被迫聽白噪音，那種類似於調電台時聽到的靜電噪音。