I am a Java developer starting Cocoa. I have worked through a couple of books, and would like to start working on some applications, starting with some audio applications. I have an idea for an application that mixes verious audio feeds, mic, MP3 audio files, line in, AC3 files, etc, into a single MP3 feed. The problem is: Where to start? I tried reading some on Core Audio, but it doesn't seem to cover what I was hoping it would. In essence, there are a few sample programs, and only one that handles MP3, and it shells out to play the actual file. Can anyone tell me where I can get started? I am used to the JavaDoc format, and I am finding it rather tough to find info in the XCode documentation.