How do I make my enemy ai hear my player character

I’ve looked at dozens of online tutorials, and none of them helped at all. This is what I have so far. What do I do to make my enemy ai actually hear my player character and start to follow him when they hear it?

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It might be worth it to change the hearing threshold that can be seen in screenshot-8. Changing this to a lower value might cause the AI “OnHearNoise” to trigger.

I tried this. Sedly, it didn’t work. I really have no idea why it’s not working.