Microphone Not working 12.04

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http://askubuntu.com – I have a Turtle Beach Z1 Headset. The sound works perfectly only when I use the setting Analog Input 4.0, but the microphone won't show up on skype or anything I use. When I try to set it using skype, all I get is the options for PulseAudio and I cannot change them. When I use pavucontrol, I tried every setting it gave me such as "Video" "Microphone 1/2" "Analog Input" and "Line In", and none of them work. From what alsamixer says, I have 2 cards named "NVidia CK8S" and "IVTV-0". I am able to set some settings with the nvidia card, but none of them help me any, and nothing appears in the IVTV- (HowTos)