Synchronized Audio in XTimelines

To ensure synchronized playback of audio and video, please follow this instruction:

Add the Playing property of the audio object on frame 0 and set its value to 1. This will start the audio as soon as the timeline is played in the Playlist Tool, and make sure it will be synced to the right time. 

Now, do not add any more keyframes for the Playing property, since changing this property on any other frame is not guaranteed to work when playing back the timeline.

In effect you need to make sure your audio file is synchronized with the start of the timeline. This should not be done inside Producer, rather in any audio editing software you use for producing the audio.

If you are exporting a previously created timeline to the new xtimeline format, you may need to change it as follows to ensure that it plays back correctly:

1. Review all audio files used by the timeline. If they are supposed to start playing halfway into the timeline, bring them into your audio editing software and instead add silence to the beginning of these files.
   Optionally, you might want to consider merging multiple audio files into a single audio track at this point.
   
   
2. Remove all occurences of the Playing property for all audio objects, leaving only those on frame 0.