Mic not working on iPad 2

Hi guys I got a problem with my iPad 2 white 32 gb wifi only microphone volume. I bought my iPad 2 when it first came out it fits my needs worked well since I got it but a couple months ago I have been getting problems with my mic when I talk to people via apps such as Skype and FaceTime , everyone tells me my mic is too low but a couple months before the mic stopped working it was working fine they can hear me from far away. So now they can't hear me unless I yell straight into the mic. The bad thing is, is that my warranty on the iPad just ran out is there a way I can get mic fixed or put warranty on it so they can fix the iPad, because I use my iPad a lot and I talk to people on here so I would like this problem to be fixed.

Thanks guys if you now a solution tell me ASAP thanks!