Selecting Tracks for Scrubbing
By default, all monitored audio tracks are selected for scrubbing. However, as the play speed increases during audio scrubbing, some monitored audio tracks are dropped. You can select up to two tracks to ensure they play during scrubbing, even if the system has to drop some tracks.
The following table shows how many tracks can be scrubbed at the varying speeds of play.
Number of Tracks and Scrub Speeds 
When you play footage forward or backward at:
You can scrub:
Normal speed
Up to 8 tracks
Two times normal speed
Up to 8 tracks (Windows)
2 tracks (Macintosh)
Three times normal speed
2 tracks
Greater than three times normal speed
0 tracks
Audio Track Monitor button
To ensure an audio track is monitored during scrubbing:
  Alt+click (Windows) or Option+click (Macintosh) the Audio Track Monitor button in the Track Selector panel for the chosen track.

The Audio Track Monitor button has a gold Speaker icon to indicate which tracks are played if the system has to drop tracks during scrubbing. By default, the two topmost Audio Track Monitor buttons display the gold Speaker icon.
You can isolate specific audio tracks for scrubbing, without having to deselect monitoring of all other audio tracks, by soloing the audio tracks. See Soloing Audio Tracks in the Timeline.

Some features described in Help are available only in Avid Xpress Pro or Avid Xpress DV. For more information about Avid Free DV go to
www.avid.com.