I recently got a retina Macbook Pro and I am loving it except for one thing. When I go to System Preferences > Sound > Output and select AirPlay while playing audio, the sound will often just stop or stutter for a period of time from less than a second to 6 or 7 seconds. The music is not just pausing because I can see on iTunes, Spotify, or YouTube that the audio continues to play. Yet on my iPhone 4 when using AirPlay, it never stutters or pauses.
I tried switching the wireless channel on my router without luck.