Setup guide

Chapter 2 Avid DS Hardware Overview
36
Tri-level Sync
In the case of HD video devices, you need a tri-level sync. Tri-level sync could
be considered synonymous to black-burst video in that it is simply the
reference synchronizing information from the facility’s master generator.
Each HD format needs a specific tri-level sync. You must use the proper tri-
level sync to synchronize your VTR and the Nitris DNA video subsystem for
all the HD formats supported by Avid DS.
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To make sure the configuration you are using is properly synced, read the
documentation that ships with your video subsystem.
The following is a list of the HD formats currently supported by Avid DS.
• 1080i Interlaced
- 1080i/60.00 fields per second
- 1080i/59.94 fields per second
- 1080i/50.00 fields per second
• 1080Psf Progressive
- 1080Psf /30.00 frames per second
- 1080Psf /29.97 frames per second
- 1080Psf /25.00 frames per second
- 1080Psf /24.00 frames per second
- 1080Psf /23.976 frames per second
• 720 Progressive
- 720/59.94 frames per second
- 720/60 frames per second