I got tired of the robotic and the British sounding voices. I know someone made an effort to release an American accent version, but wasn't satisfied with it because it sounded like the guy was sitting next to you instead of being on the ground. That's why I made my own in both American accent and Spanish, just in case I want to change things around when flying in some of the Latin countries. I added some airport background ambient sound as the ground crew was speaking through the headphones, and made sure it sounds more like he's outside the plane.
