After downloading mavericks osx, computer volume gets real low when using FaceTime

I just did the mavericks update on my macbook pro. Before the update, when I'd use FaceTime (on macbook pro, not iPhone) I could still listen to music (iTunes, youtube, etc). After doing the update, now when I use FaceTime, I can't listen to music. The music will play but it's way too low to hear anything. After I end the call, my sound goes back to normal, I'm guessing this is one of the power saving methods apple incorporated. Does anyone know how to make my sound work normally again while face timing?