This is a paid asset, but now you can download Realtime Hearing AI Free.
Detail this asset from Unity Store: Original Link
Realtime Hearing AI v1.0.3
Realtime Hearing AI
(DEMO SCENE AT THE VERY BOTTOM)
This allows the AI to hear your voice in real time, not just your voice, but any noise you make can effect this. This adds a great depth of realism into your games.
Realtime Hearing AI offers the building blocks to create a highly sophisticated AI. Imagine hiding from an enemy with this script attached to it, and your brother opens the door – you can finally blame your death on your brother!
Easy 2 minute setup! This is a simple to set up package that will add so much more realism to your games!
Here are some videos for you to check out.
Character Set Up: https://www.youtube.com/watch?v=B-Z0yqSbwF8
Showing how this works! https://www.youtube.com/watch?v=DBJYVHD9Lpk
HERE IS A DEMO SCENE OF THE ABOVE VIDEOS http://warhead-designz.com/DEMOGAMES/Builds.html