The sound of sirens was an omnipresent background noise in New York.在纽约，警报声是无处不在的背景噪音。There was constant background noise from the road.公路上不断传来背景噪声。The recording had a lot of background noise.这段录音有大量的杂音He dubbed out the background noise.他抹去了背景噪音。I learned to tune out the background noise.我学会了对背景杂音充耳不闻。