Any idea what that Bell Ding Noise is while playing?

[Malkuth]

No messages no nothing. Only a very annoying Bell,Ding Noise. Sounds kinda like a kick drum being touched off with a Long Bell sound? No mods, never had this until FC.

[Tar-Mairon]

it have something to do with pre FTL civ

[Krzysztof.G.K]

I'm currently having exactly the same problem and there's no way to turn it off other than turning off the sound of the sound effects. it's possible that in the next update of the game they will be able to eliminate this...

[Josh.GY]

I think it could be the reveal yourself to primitives sound as it started playing all the time after i did this

[Chasedtuna9]

It is definitely related to the aggressive observation of primitives. my outpost locked itself to passive observation and the sound stopped...

[Kasiope]

Same issue here, i had this sound since the start of my game, it happen randomly i can't figure out why. I play the broken shackle origin.

[Dustreaper]

Isn't it that their observation level changes?