Frame-accurate synchronisation
Software PTP vs. hardware PTP – how it works technically.
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Get multiple CF Player® to play together frame-accurately – in five steps.
For a video wall or a multi-part projection, several players together form one image. For this to succeed without visible offset, you need two things: the right content split and PTP sync. Here's how to set up a sync project. How synchronisation works technically is explained in the "Frame-Accurate Synchronisation" guide.
Decide which player shows which section of the overall surface (e.g. left/right image half with two projectors). Cut or export the media accordingly – ideally all at the same length and frame rate.
Play out the matching section to each player – via drag-and-drop onto the microSD card or centrally via the CF Player CMS. Make sure the playback order is identical.
In each player's web interface under Main page → Sync, set the Protocol to Advanced (PTP) and save. Important: on all participating players – otherwise the group falls back to standard sync.
Connect all players to the same switch / the same LAN. Master and slaves find each other automatically; the internet is not needed. LAN is preferable to WLAN bridges, which can swallow PTP multicast.
In the Debug tab, check Sync status and PTP lock. Both green means frame-accurate. If PTP lock stays red, check the network/firewall (multicast).
Tip: the CF Player®8K uses hardware-based PTP and is therefore especially precise for large, high-resolution walls. Information without guarantee.
Software PTP vs. hardware PTP – how it works technically.
To the guideThe solution at a glance – scalable up to a large wall.
Learn moreCreate interactive applications step by step.
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