I have recently bought an EEE PC 1005ha which, for those who don't know, is a netbook.
It's worked great for me in nearly every way when using LM13, but when I try to talk to my girlfriend through Skype, it my voice sounds absolutely horrid. The microphone technicaly "works", but there is some nasty distortion. The netbook I have is technically from a few years ago, but the condition in which I purchased it was nearly brand new. Somehow I doubt that this is mainly a hardware issue, but since I don't have Windows, I have nothing but Linux to test this with.
Whenever I've had sound problems, I usually look to Pulseaudio because to this day it still usually causes a bunch of problems. I disabled it and tried using ALSA. There is still mic distortion when using ALSA, but it is noticeably not quite as bad as Pulseaudio(but still pretty bad).
I've fiddled with all the settings with no luck. I attached 2 samples so you guys can hear what my problem is. One was recorded through Pulseaudio and one was recorded with ALSA, with the GNOME sound recorder.
Just in case more information is needed, I'm running the 32-bit version of Linux Mint 13. The configuration is relatively unchanged, except I use GNOME classic instead of Cinnamon.