Hi All.

Much to my surprise, installing ubuntu on my first laptop - an acer extensa 5220 - was pretty easy. However, I do have a couple of issues, one of which is getting the inbuilt mic to work.

When I test the mic, using the application in
Applications -> Sound and Video -> Sound Recorder, I am presented with a number of possible devices to record from - Front Mic Boost, Mic, Capture, Capture 1, Digital.

I guess only Mic and Front Mic Boost concern me.

When I play back what I have recorded, I just get a weird digital grating sound.

What is going on here? How can I fix this and get sound?