The TTT server has positional audio integrated with the game using the Mumble voice client. This associates everyone's voice with their in game character, so it sounds as if each player's voice is coming from their player model, as opposed to everyone's voice sounding equally loud and in the same stereo position. We also have some additional integrations set up with the TTT gamemode so that if you're killed in game, you can talk to other dead players but those who are still alive can't hear you.
You'll need to set up Mumble and Garry's Mod with some specific settings to get everything working right.
- Download the Mumble Client (free).