Audio troubles after upgrading to OS X 10.9 Mavericks.
After upgrading to OS X 10.9 Mavericks I have been having trouble with low audio levels on youtube, safari, and other audio apps. I checked all audio setting in safari, system preferences, and iTunes and they are all maxed. FaceTime audio is working just fine. Any advice would be helpful.
MacBook Pro, OS X Mavericks (10.9)