I've done additional research and it appears to be a issue with the audio driver in OS X 10.9. Before asking you to revert to OS X 10.8 audio driver, please try the following Terminal commands first.
Please use Time Machine to back up your Mac before doing this.
*** Must Log into Admin account on Mac ***
Run the "Terminal" application under /Applications/Utilities/Terminal or type “Terminal” in Spotlight
Then COPY (use copy and paste command) this line:...