Multiscreen video-wall synchronisation
One canvas split across several players, frame-aligned over NTP.
- In production since
- 2026-08-19
Problem
An LED wall or a ribbon of screens fed by several SpinetiX players has to show one continuous canvas, with every player showing exactly its slice at the same instant. Otherwise seams tear during motion and the wall reads as several TVs bolted together.
What we built
A verified deployment pattern on SpinetiX's NTP time-based synchronisation rather than gen-lock: the same project published to every player, one screen ID per device, a shared NTP source, and documented accuracy limits (~17 ms at 60 Hz, ~20 ms at 50 Hz, which covers stitched images and slideshows but not tight motion crossing a seam at 60 Hz). It covers array screen-ID schemes for rectangular grids and custom schemes for irregular layouts, plus the field checks for sharedVarPSK mismatch, NTP boot delay and master/slave role fields drawn from real HMP diagnostic reports.
Result
A wall of matched players behaves as one screen, with the accuracy ceiling stated up front.
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