where to start with audio synthesis on iPhone

Question

I\'d like to build a synthesizer for the iPhone. I understand that it\'s possible to use custom audio units for the iPhone. At first glance, this sounds promising, since the

Answer 1

Last time I checked you couldn't use custom AUs on iOS in a way that would allow all installed apps to use it (like on MacOS X).

You could theoretically use a custom AU from inside your iOS app by loading it from the app's bundle and calling the AU's render function directly, but then you could as well add the code directly to your app. Also, I'm pretty sure that loading and calling code that sits in a dynamic library would go against the AppStore policies.

So you will either have to do the processing in your remote IO callback or use the Apple AUs that are preinstalled, within an AUGraph.