I had created a slideshow and attached an audio clip. When I preview it Aperture, everything is fine. But after I export it into .mov format(even in Apple TV or 720P) also lose the audio sound. Any suggest?
If it has DRM, I don't think Aperture will allow you export it, but I just did a test with a song from the iTunes store that did export. (This was only a test: I wouldn't steal someone's music.) I know iTunes store stopped putting DRM on songs sometime ago though. Don't know how to check if it has DRM.
I'm having this problem too. I'm using a song that came in the "Theme Music" folder and it works fine in Aperture but once I export, there's no music in the slideshow. Am I doing something wrong?