The technology isn't implemented correctly. The idea is that this is only broadcast over the loudspeaker over the front door, for anyone to hear that's at the bus stop. If you've taken Translink you'll hear how this sounds.
Is it possible that our busses in Victoria don't have these speakers, so it has to be broadcast throughout the whole bus?
Maybe something that will be fixed as new busses get added to the fleet and they can be ordered with that option.
Since they already had to install the new LCD marquee panels and a new operator's console, I would have thought that an external speaker would be included in the upgrade package.
One thing that I've noticed: when a driver changeover is scheduled, the system automatically changes the route display to "not in service". I've had to ask a few drivers which route they were operating, since there were passengers on board so they weren't really out of service. Last night, a fresh operator didn't realize that their vehicle had arrived until the existing driver called out. I imagine as roll out continues that the kinks will be worked out, but for now, it's a humorous-but-mildly-annoying quirk.