@blatham,
I'll be dammed: good catch.
On a Navy ship its's the Boatswains whistle on the 1MC (a voice circuit from the Bridge that reaches all compartments on the ship), that did that job. As I recall the chant was reveille ! reveille! all hands rise and shine.
On a brief tour on the old Arc Royal (the one with catapults) in a RNAF Buccanner squadron the reveille chant (in an English regional accent) was incomprehensible to me at first. However, I soon learned it was something like "Now wakee, wakee, rise and shine... cook's in the galley a long, long time.
Happily I fairly quickly learned to tune out the noise and distraction. In a carrier squadron the air wing officers are quartered on the 03 Level (above the main (hangar) deck and immediately below the flight deck. The noise and vibration from the catapults, taxiing aircraft on the flight deck immediately above, or from aircraft tie down chains being dropped on the 2" steel deck, were hard to ignore. However eventually one learned to do it.