Logic Pro 7: Bouncing a DAE output creates an empty audio file

After clicking the Bounce button on a DAE output channel and confirming the Bounce dialog, you may come across a situation in which no progress bar appears and the bounce seems to be performed faster than usual (it's done in a few seconds). The resulting audio file contains only silence.

This will happen if the bounce mode for Direct TDM tracks is set to Offline. In this case, the bounce mode setting for Direct TDM is taken into account although the bounce process is triggered in DAE. Thus, Logic tries to perform an offline bounce for DAE, which is not possible. DAE can only be bounced in realtime.

This issue is fixed in Logic Pro 7.1, in which DAE bounces no longer use the settings for DTDM.

To resolve this issue in Logic 7.0, switch the bounce setting for Direct TDM to Realtime before bouncing the DAE output. This setting has to be changed only once and is stored in the preferences. (If an output object for Direct TDM already exists in your environment, skip to step 4).

1. Create a new audio object in the Environment window, using the local menu function New > Audio Object.
2. Double-click the new object to display it in extended view.
3. Assign the object's Device setting to Direct TDM, and set the Channel output to ESB 1-2.

   
   The Direct TDM Output object in the Environment window

4. Click the Bounce button on the Direct TDM output channel to open the Bounce dialog.
5. In the Bounce Mode options, select Realtime.
6. Click the Cancel button in the Bounce dialog (this cancels the bounce, but saves the Bounce Mode setting).
7. Bounce the DAE output.

The Bounce dialog with Bounce Mode set to Realtime

This document will be updated as more information becomes available.