I just found the solution to this we can detect the audio is playable or not by using the following code.
I think,Before playing them, we cant identify the error :). AVAudioPlayer will return error when error occurred in the file. For that, you have to check and log the AVAudioPlayer return NSError object.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.