Expression 3 - ETC

Blackout cues and tracking
Sometimes you may add a channel to a sequence of cues that have not
used that channel yet. For example, you may want to add a channel to all
cues in a scene. To do this, add the channel to the first cue in the
sequence and use Track to track the change through the remaining cues.
However, the last cue in sequence may be a blackout cue. When you track
the channel, the new channel tracks until it runs into a different recorded
level. To ensure that channels are not tracked through a blackout cue,
make the blackout cue an allfade cue. An allfade cue assigns a level of
zero to any unused channels. This blocks any potential tracks. An allfade
cue also clears the opposite fader.
Figure 6 displays what happens when we track channel 5 through the
sequence when cue 5 is a regular crossfade cue.
Chan 1 Chan 2 Chan 3 Chan 4 Chan 5
Cue 1 50 FF
Cue 1.1 50 50 FF
Cue 2 50 FF 00 FF
Cue 3 50 FF FF FF
Cue 4 25 FF FF FF FF
Cue 5 00 00 00 00 FF
Figure 6
Channel 5 tracks through cue 5 and ruins the blackout cue.
114 Chapter 8 Track