Suppressors can cut the noise of a gunshot by 30 to 40 decibels, which is about the same as earplugs or foam earmuffs. So, on average, a suppressor would make a gun sound like it is firing at around 130 to 140 decibels.
That being said, there is no definitive answer to this question because suppressors can vary in terms of how effective they are at muffling sound. The type of ammo you are using and the distance between the shooter and the target will also affect how loud gunshots sound.
In general, however, using a suppressor will significantly reduce the noise of a gunshot and make it much more tolerable for both the shooter and those around them.
Stephen Answered question September 12, 2022