Easily create Audio Units in Xcode.
These templates customize Xcode's New Project dialog to create Audio Unit projects. At the moment, only Audio Effect and Monotimbral Synth units are implemented.
Open Xcode. Create a new project. Select Audio Unit as the project category, then select the type of unit.
See the Audio Unit Programming Guide for more information.
Copy the Audio Unit folder into your
~/Library/Developer/Xcode/Templates folder.
It works on my Mac running OS X 10.10 "Yosemite" and Xcode Version 6.1 (6A1052d). It might possibly work on some other Mac or software version.