You can choose a new sound or sound(s) to make when you fart. The sound can't be quieter than your fart would otherwise be. Nor can it be shorter than your fart would otherwise be.

What would be your farttone?

Some of my ideas Owen Wilson's "Wow". The scream from that one disturbed song. The entire audio of the Bee movie.

Edit 1. 18 more of you commented than updooted. "No judgement", I say while judging you...