[She isn't sure if she should look shocked or sympathetic to learn he has a dead wife and daughter, but she carefully decides to remain passive and gives him an empathetic look instead. He's like Frank in that regard, which makes her want to help him because Karen doesn't know when to quit.]

That's possible, but we would be hearing the same things if that was the case. We're hearing completely different things. It has to be more advanced than just audio projection. We aren't sure what was done to us before waking up here. They could have placed an implant somewhere.

[She's heard of stranger things happening. The good news is, she's no longer paying attention to the walls.]