AVAudioPlayer sounds garbled on iPhone without headphones?

I finally decided to obtain the sound files from a different source. The new sound files play fine. I still have no theory as to why the old sound files would play with earphones, but not without them.

I really dislike finding solutions without understanding why they work.

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.