Okay, I got these Christmas of 2012 (
http://bit.ly/1kZ9HbU), and I started to use them recently again because I just got back my Internet. So I go to hook these into my PS3 (which is mainly what I use it for), and it works fine. (they aren't designed for sound to be transmitted into the headsets.) So I go to play TF2, hook them up and start TF2 up. I noticed no sound was being transmitted to the headsets (if it's connected to the computer, sound DOES come through it.) I tried to use my communication key, which wouldn't work either (I hear that it doesn't work unless something isn't being detected.) This is really loving weird, I check in my sounds, the microphone is working fine. When I tested the speaker (which transmits a series of beeps,) I hear nothing. I tried experimenting with computer sounds, but to no avail.
What could be wrong? The mic is fine, but I'd really like to hear the game and other people.