I'm using Kubuntu 12.10 with Backports enabled and I'm getting too much noise while doing screencasting in Kazam or other aplications like Recordmydesktop, noise also appears while recording webcam with Kamoso.
I have an Acel Travellmate 5760z wich uses an i3 with an Intel HD 3000 graphics cards, I am using the webcam and mic of the laptop, so can it be a driver issue? This started happening 1 or 2 weeks ago, maybe some update gone wrong?
PS: Sorry for my bad english and thanks for taking the time.
[UPDATE] Hi, I tried Kubuntu 13.04 (Raring Ringtail) and I recorded a video with Kamoso (which records webcam) and audio was fine, no noise appeared, so it seems that this has been fixed for RaringRingtail, maybe a newer version of a Package solved that. But I still have that issue in 12.10.
[SOLVED] First, do the steps in the first answer provided by NikTh (maybe you will need to check the source), then I installed "pavucontrol" and "alsamixergui", and while doing sound recording I kept changing values until I got the combination that made my soundrecording work great.