Hi Everyone,

I'm trying to learn how to handle audio at a fairly low level with audio queue services.

I have been progrmaing in memory managed languages for quite a while, and have just completed the c programing tutorial by vtc (2007).

This has left me comfortable with the understanding of pointers and memory allocation, but the apple documention still leaves me wanting for a simpler implenation and explaination.

Maybe I need to learn objective c and cocoa better.

I have heard that this book is good.

Cocoa(R) Programming for Mac(R) OS X (3rd Edition)

Could someone suggest a learning path that is going to help me get an better understanding of working with audio and an iphone.

I want to be able to play mp3 files back and also alter the pitch of them as they are playing. I am prepared that I may have to temporarily convert the mp3 files into pcm files to do things like that to them.

Thanks everyone.