Do the sounds from in-game speakers attract the Alien?

[Bieszczbaba]

So I'm doing one of the medbay missions and I've been thinking about those speaker noises that go off once in a while. Things like "artificial nurses operate here, if you wish to be asisted by a human, let us know" or "no smoking blah blah" - does that have a source that actually exist inside the world and the alien reacts to it just the way it does to any other sound (so if it goes off, I should hide or go somewhere else) or should it just be treated as a meaningless background noise?

Thank you in advance

[Dayve]

Originally posted by Bieszczbaba:

So I'm doing one of the medbay missions and I've been thinking about those speaker noises that go off once in a while. Things like "artificial nurses operate here, if you wish to be asisted by a human, let us know" or "no smoking blah blah" - does that have a source that actually exist inside the world and the alien reacts to it just the way it does to any other sound (so if it goes off, I should hide or go somewhere else) or should it just be treated as a meaningless background noise?

Thank you in advance

No they don't. Here's a list of things that the alien CAN hear:

-Running (or walking if you're very close to it)
-Guns, including the flamethrower
-Flares, noisemakers and any other throwable object
-Anything generated by rewire boxes (alarms, unstable system, etc)
-Hitting things with the wrench
-Motion tracker, but only if the alien is like right in front of you

Here's a list of things the alien CAN NOT hear:

-Doors opening and closing
-Cutting torch
-Wrench to open door braces
-Opening and closing locker doors
-NPC humans running/talking/shouting.
-Knocking things over (like walking over cups and chairs and stuff)

Many of the above things may sound very loud in the game, especially the cutting torch, locker doors and opening door braces, but the alien can't actually hear them. The devs just made them very loud to make you think "Crap, the alien definitely heard that, now I'm scared!"

[Bieszczbaba]

Thank you both! :)
I'm especially surprised about the knocking things over part, I kinda always assumed Alien possibly hearing them was the whole reason they lay around :O