DaveSmith122 is right. You cannot just reverse the byte data. I have achieved the same effect using CoreAudio and AudioUnits.
Use ExtFileReader C API to read the file into lPCM buffers and then you can reverse the buffers as needed.
You can use helper class for accessing array in different class. Create an NSObject file in the project. In your PassingClass.
In your PassinClass. In your class1. H create instance of this helper class.
In your class1. In your class2. NSLog the pClass getDataResponse to check, if everything went well you should be able to pass the response data from class 1 to class 2.
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.