Why do I hear static when I listen to an audiocast?
Source: QuickPlayer for BlackBerryYou will notice that you hear static over your BlackBerry speaker when your device is connecting to your network (indicated by arrows in the upper right hand corner of your screen). The static is reduced by a strong network connection, or by listening to the QuickPlayer through earbuds. The browser you use to visit getQuickPlayer.com can sometimes affect our ability to recognize your BlackBerry model. If you encounter this problem, visit getQuickPlayer.