Hi, I have an Asus Eee Pc 1005PEB wih Xubuntu 12.04, and it's been a while since I started having problems with my microphone. When I record my voice with Sound Recorder, or when I talk to somebody in Skype, I hear a scratchy sound besides my own voice, as if there was someone next to me making fried potatoes or something. Updating the ALSA driver (https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS) improved sound quality and the scratchy sound has diminished, but it is not completely gone. I thought about changing my OS, but I tried other distros in its live version (Linux Mint, EasyPeasy, Debian, an older Ubuntu release) and it makes no difference. What can I do???

Thanks a lot.