A great supressor article from Arstechnica

[midget]

Learning the science behind silencers on the range with SilencerCo | Ars Technica

Worth reading.

 

[dboz]

Not a bad article, but he didnt mention anything about a round's velocity affecting the perceived noise, and how that can not be muffled. You can fire subsonic, but you can't suppress a ballistic "crack". Otherwise, it was an excellent read.