Specifications

46 Chapter 3 Media
Using Embedded Audio Some video files contain an audio track in addition to the video. In this case,
the sound will play from the same display computer(s) as the video does. If you
don’t want this, cut the sound track out of the movie and place it in a file of its
own, thereby ending up with two media files: one containing the video and
one the audio. This allows you to place them separately in WATCHOUT,
making the sound play from any computer.
You can use QuickTime Pro or any QuickTime compatible video editing soft-
ware to split the audio and video tracks of a QuickTime movie into two sepa-
rate movies. In QuickTime Player, open the composite movie and choose
“Show Movie Properties” on the Window menu. Select the sound track and
click “Extract”. This extracts the sound track into its own movie, which you can
then save as an AIFF or WAV file using the Export command on the File menu.
◆ NOTE: If your video file is not QuickTime compatible, you may not be able
to extract the audio from it. Try opening the file using a video editing appli-
cation, which may allow you to extract audio into a separate track, which
can then be exported.
In WATCHOUT, add both the video and the sound as separate cues. You can
now position them independently in the Stage window, allowing the sound
track to play through any display computer.