Gen Code Export: AudioUnits

Following are the steps for the creation of AudioUnits with gen~.

• Get the reference material

Requirements

Xcode 4.6
Max 6.1

Preliminaries

• Download the “Audio Tools for Xcode” package by going to Xcode > Open Developer Tool > More Developer Tools ...

• Install the CoreAudio folder found in the “Audio Tools for Xcode” package. Make sure to grab the one from Feb. 16, 2012. The Xcode packages assume it’s in the folder /Applications/Developer. If you install it somewhere else, change the CORE_AUDIO_LOCATION setting in the Xcode projects

Building an AudioUnit

1. Duplicate the provided MyAU project with the command: python duplicate.py MyAU (For example: python duplicate.py MyAU YourAU MyCompany)

2. Open a gen~ patch to be turned into a plugin.

3. Send gen~ the exportcode message in order to export the genpatcher as C++ code.

4. Open the Xcode project generated in step 2.

5. Change the COMP_MANUF [It must be 4 letters] and COMP_SUBTYPE settings in the .r resource file and the -Info.plist file.

6. If you installed CoreAudio in a location other than /Applications/Developer, change the CORE_AUDIO_LOCATION build setting to the appropriate location and change the location of all of the files in the CoreAudio folder so that Xcode can compile them.
   

• Click on the project in the Project Navigator to show the build settings

• Click on the target under the Targets section

• If not already showing, click on the Build Settings tab

• Under the User-Defined section, see the CORE_AUDIO_LOCATION setting to be changed (you can use the search field in the Build Settings to quickly locate it)

• Build the project.

• Copy the build product to the /Library/Audio/Plug-Ins/Components folder.

• Run auval -a to verify that the plugin functions properly.