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Re: Internal mic not working

Hi I am also having an issue with my old Dell Inspiron 640m. The Audio is Sigmatel High Definition. I upgraded my OS to win 7 and it works fine though not advisable for this type of model. All of a sudden my microphone did not work. So I tried system restore no go. So I downgraded my OS to Vista 32 thought that mic would work but apparently its not working still even my usb webcam with microphone is not working as well. I can see my mic in the recording tab however its not receiving any signal only buzz and static sounds. I reinstall the Audio driver still not working on the Recording Tab it shows both mics are working but not picking up any signal. I tried the control panel to setup the mic but its not detecting it the Green bar is not moving regardless of which mic option I should choose. Tried it on Skype still didnt work. Is there a way that I can resolved this issue? Thanks.

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