Sound gets stuttery after playing for a while on OSX 10.8.2

[rcrowell]

Using a 13-inch MacBook Air (1.7 GHz i5) running OSX 10.8.2.

After playing for a while the sound gets choppy. Sounds sort of like it is playing sound effects half the time, and nothing the other half the time, but switching like three or four times a second. Sorta sounds like I'm listening to an aquarium through a fan...

Happens even with the game paused. Weirdly, when I save the game, the sound plays as normal only during the time between me clicking "Save" and the save finishing. Once the save has finished, the sound goes back to stuttering like crazy.

Quitting the game and reloading the save helps, but its not long before the sound effects start getting choppy once again.