The built in mic in my iMac is acting funny. At first I thought it was muted but then I turned it all the way up in system preferences and the only thing that goes through is if I tap loudly somewhere on the mac or yell really loud(you can only just barley her) . The problem started when I was using stickam (video chat) a few days ago. I'm not sure if it was caused by something I did since I was just sitting there talking. It was working just fine until I thought people were ignoring me then I realized something was wrong with my mic.I tried using it with things other than stickam to see if it was just a problem with stickam but everything I try comes up with the same problem.