This concerns most likely the alsa driver, and if not you may need another solution. I have posted recently about similar problem, reading it here
you will have the solution. If you will follow the instructions using the CLI (command prompt or shell) ALSA will configure automatically for you.
there is another question i want to ask....is there any application that can help me maintain and optimize my system?
That I do not know of yet. So far, our practice, generally for Gnu/Linux users is to learn to "control" your system in order to tune it according to your peculiar need. Under Gnu/Linux we do not rely on some "tailored-cut programs or applications"
the way it was practiced in the days of Microsoft, here we must understand and learn to ask "particular questions
" so that others can share to you their experience.
But don't worry, we have plenty of good souls here, and masters of their own right themselves who are willing to answer every good question like this one you have now. Just feel free to come and be sure to specify what you want to do of your system.
For a start download a guide book here
. If you want to know *something* about the system just open the book press Ctl+F type in your *something* and the book will offer you a very short but very useful insight for a new Gnu/Linux user.
Hope it helps. Good luck.