Does Canberra have any iconic unique sounds?

Melbourne has the tram bell, and I've seen some people mention the pedestrian crossing sound or opal card reader ding for Sydney, but is there anything like that for Canberra? All the ones I can think of are just general Australiana.

Other than an unexplained loud bang, that's too easy.

(if this ends up as a filler article in a newspaper, it's not me. genuinely just curious if anyone can think of one)