If you want to hear just how many noses an Airbus can make - fly down the back when it's empty!!!! Sounds like the haunted house at Alton Towers with all those clunks, bangs and creaks!!!! And before anyone starts - yes I do fly the bus and love it with all my heart!
Sorry - a bit off topic, but in answer to paxboy's question about the 146 noise - I am informed that it is air going supersonic between the flap and the wing as they retract. Hope this helps.