- 信号噪音比 xìnhàozàoyīnbǐ signal-to-noise ratiothe ratio of the strength of an electrical or other signal to that of unwanted interference
- 噪音指示计 zàoyīnzhǐshìjì noise meterAn instrument used to measure the loudness of noise; sound level meter
- 噪音污染 zàoyīnwūrǎn noise pollutionnoise pollution; sound pollution
- 噪音盒 zàoyīnhé boomboxboombox; ghetto blaster