I'm a ultra noob both to IOS/Cocoa programming and this forum. I'm designing an app that detects the pitch of a note a user is "singing" into the mic and i want to compare it to reference and tell them how accurate they are. It's like a guitar tuner app which I see being sold. How do I get the pitch of a note coming into the input? I see lots of reference on how to get the amplitude. I wonder if they even provisioned for simple pitch (or average pitch) detection in the SDK. Perhaps I'm oversimplifying and I need to do some complicated DSP to figure that out. In general, I understand code. But, new to objective C so bear with me. Any help or advice would be gratefully appreciated.