decibel; dB
Unit for measuring sound intensity or power level; used in acoustics, electronics, and everyday contexts.
このヘッドホンの最大音量は100デシベルです。
The maximum volume of these headphones is 100 decibels.
騒音計でデシベルを測った。
I measured the decibels with a sound level meter.
This machine's noise level is 80 decibels.
Nighttime construction noise must not exceed 60 decibels.