Live entertainment · live
Tri-level sync
Also known as tri-level reference.
A three-level video timing reference commonly used to synchronize high-definition production equipment.
In practice
It reduces timing ambiguity around the reference transition compared with bi-level sync, but format, frame rate, distribution, termination, and device compatibility must match.
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Sources
- Connecting Eos Family Consoles to a Visualiser · Electronic Theatre Controls
Educational reference only. Requirements vary by jurisdiction, employer, venue, and production context.