I wasn't having any issue with sound at all, but my mic wouldn't work. I'm using an HP Pavilion dv6500t notebook with Realtek audio card. Anyways, a friend had sent me this link: https://help.ubuntu.com/community/OpenSound to get OpenSound to work INSTEAD of Alsa in hopes that my mic would work. After going through the whole thing, the only thing that happened was I had no sound at all. I don't know how to go backwards and put everything back to the way it was. I'd much rather have speaker/output sound than to worry about a stupid mic.
And fyi, I'm VERY new at this. I can follow instructions like how they are in that link, but I'm not experienced enough to know what to do off what you'd consider simple commands if that makes sense. Anyways, just PLEASE, if someone could help I'd be very grateful.