Adjust and test microphones
My laptop has a built-in microphone, and I also have an external (plugin) microphone. I'm running Kubuntu. How can I test if the microphone is working and adjust its sensitivity?
I've tried making a Skype sound-test call and hear nothing when I speak into the mike. The best kind of test, I'd think, would be to directly record a short segment of speech and play it back, but I don't know how to do that outside of Skype. The relevant line from lspci (I think) is:
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)