Sound doesn't work unless I restart my computer. How can I fix this?

So my sound will frequently randomly stop working on my MacBook Pro 13" that I purchased new about a year ago. It's happens not after I've unplugged headphones or the power connector, but instead it's just totally random. I've gone to sound preferences too and nothing seems to fix it. Once I restart my computer, however, it will be fixed again. The only thing is this happens about once a day, and I can't be restarting my computer all the time to fix my sound. Does any one have any idea how I can fix this problem? It's happening right now so I'm not going to restart it to try to see if I can fix it somehow without restarting. Also, there is no red light in the headphone jack. Please help!