Tonight I came home and woke up my MBP. Every once in a while a rooster crowing sounds keeps happening and I have no idea what it is coming from. I have Firefox and Adium running the whole time. The first time I noticed it I had iTunes open. The second time I think I had iMovie open and iTunes was closed. The third time I had 1password open and iTunes and iMovie were closed. Does anyone have any idea what is causing this? It is driving me crazy not knowing.