Did you come right? It's just possible it's a malady with the headphone connection – if you happened to use these ... i've found that Apple doesn't like Sony headphones; if the problem is still there maybe check out the link on youtube whereby a MacBook Pro suffered with the same ailment. One assumes your volume switch (found alongside the ipad) is turned up to max ... let us know and we'll consult the oracle more in depth if need be ...