I\'m looking for a way to change the pitch of recorded audio as it is saved to disk, or played back (in real time). I understand Audio Units can be used for this. The iPhone off
There are some very good resources here (http://michael.tyson.id.au/2008/11/04/using-remoteio-audio-unit/) for using the RemoteIO Audio Unit. In my experience working with Audio Units on the iPhone, I've found that I can implement a transformation manually in the callback function. In doing so, you might find that solves you problem.