Stuttering whenever any sound is played....

[torreydale]

You can install restricted extras via Menu->System->Lite Software.  They are ok to install in the US, my fellow American.

I also just did a Google web search on "ALC892 Ubuntu" and got a couple of links with the titles:
14.04 - ALC892 Low sound issue fixed with changing alsa ...
http://www.google.com/url?sa=t&rct=j&q=&...6055,d.dmo

and

Thread: Realtek ALC892 No sound - Ubuntu Forums
http://www.google.com/url?sa=t&rct=j&q=&...6055,d.dmo

They might help.