You may have heard that Valve’s new Steam Controller can ring like a telephone or do the Wilhelm scream . But did you know it can sing songs, too? Let me show you. Here’s the new Steam Controller performing the “Ground Theme” from Super Mario Bros. 2 : Here is “Still Alive” from Portal — fitting for Valve hardware: I even made it play Doom : Are you wondering how the controller, which does not have a speaker, is able to make audio at all? Valve’s first Steam Controller, even though it was