My Lenovo P580 ideapad built-in microphone not working with ubuntu 12.04?

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http://askubuntu.com – So i've seen questions involving this computer and this version on ubuntu, but they were unhelpful and useless pretty much. I need help and i have no idea what the problem is. I tried to download the linux headers stuff but i got as far as that because the part where i had to go to terminal and see if it was in my /downloads, i became confused. so here is the question how do i fix this problem... please put this as simple as possible bc i am totally new to this and when people jumped round it became annoying. Please be very detailed and patient too... Please Help Me!!! Thanxxx (HowTos)