He said: "It's been frustrating but now I have a chance to go out there and prove to everyone that I'm the number one at this club and will be for many years to come.
"I've always wanted to step into the role but with Marcus there it was never going to happen. He's gone now which has given me a great chance to step up and I'm looking forward to that challenge.
"It been a frustrating couple of years, especially when we went down as there were a big spell of games where I thought I could have made the difference. Then last season being dropped for no reason was another frustrating point.
"So this a big chance for myself, it's been a long time coming. I've played in patches but I haven't been able to keep the shirt so this is a chance to prove myself."
Federici gets his chance after hahnemann's move to Wolves after being released by Reading this summer.