But was this some kind of audio frame-up, or was Dean really shouting himself into political oblivion? The video that was played non-stop on network TV was not the full story. Dean's unidirectional microphone only picked up his voice and not the screams and shouts of the hundreds of Dean supporters that filled the room. The mainstream media filtered out the crowd, so while most people at home saw a crazy person screaming over a passive room, the reality was that Dean's voice was only keeping pace with the raucous volume of his supporters.