When you load an old song into Logic Pro or Logic Express, sometimes the plug-ins won't appear on the inserts or if they do, they appear crossed out with a diagonal line. This happens when you load a song that was created with a different type of audio driver (for example, you created the song in Mac OS 9 with an ASIO driver). Logic will often offer to automatically convert the song to Core Audio, but here are some situations where this will not occur:
- The Universal Track Mode setting for the current audio driver does not match the setting on the system that the song was created.
- The song was created with multiple audio drivers.
In this situation, it will also be impossible to insert new plug-ins. Clicking on an insert will only display No Plug-in because the wrong driver is specified in the parameter box for audio objects in the song's Environment. There are several steps you can take to resolve this issue:
- Go to the Environment, and select all of the audio objects (take care not to select any other types of objects).
- Go to the parameter box on the left side of the Environment window, and change the Device setting from whatever it was set to originally (ASIO, AW, and so forth) to CoreAudio. Depending on how your Environment is set up in your song, you may have to go through multiple layers in the Environment to get all of the audio objects.
Notice that all of the inserted plug-ins on your audio channel strips will disappear. The following steps correct this. - Choose Audio > Audio Configuration to open the window.
- Choose the driver that your song was originally saved with from the window's Device menu.
- From the window menu bar, choose Edit > Copy.
- From the window menu bar, choose Device > CoreAudio.
- From the window menu bar, choose Edit > Paste.
The plug-ins should reappear in their proper insert slots on each audio channel strip. If they do not, choose Logic Pro > Preferences > Audio and click the Drivers tab in the resulting window. Toggle the Universal Track Mode checkbox from whatever it is currently set to and then repeat steps 3-7 above. You can reset your Universal Track Mode selection after you've pasted the configuration to Core Audio.
