Passenger question

[contrail]

I was wondering why is that I can hear passengers boarding the aircraft but not when they are leaving?

[SWAFO]

Because they are sucked out of the plane by a very large and silent vacuum! Actually I thought you could hear the PAX deplaning. It's
been a while since I've waited it out, because my FS time lags behind for some reason (a 5 min deplane takes 8-10 min).