So I was stopped at a red in between Jamaica and Mineola, while waiting I was playing about with the external camera in free mode, as I zoomed up towards the signals gantry (Queens SE12 or 12E I think) I heard what sounds like adults and children laughing and possibly some music, almost like a party or something. You can hear it up in the gantry, down at trackside near the houses and round the porta-cabin that is there too, anyone else heard this? It's very faint so I can't make out what's being said, I'm wondering if it's some sort of Easter egg or some deliberate ambient noise from the houses nearby?