https://www.cnet.com/news/how-loud-do-you-like-your-music/

It's a Friday night, and you've got your favorite song cranking, but could this impromptu sing-along be doing you any harm (apart from the neighbors calling the cops)? There are several ways you can minimize the damage that loud music can cause.

The decibel (db) is the unit we use to measure the intensity of sound, and the higher the number the louder the sound. A quiet living room will be around 40 db, a noisy city street 70 db, a thunderclap is 120 db, a fighter jet taking off from an aircraft carrier is an eardrum-crushing 140 db!