1. POV-Clients
Sync

2. Possibilities
basic synchronisation: synchronous switching of list items and interactive events
available since v8
included in v9 Standard package
frame synchronistation: synchronous playback of videos, animations and pictures
available since v9
included in v9 Premium package

3. Requirements
same network (for UDP/TCP packet synchronization) for all pov clients that have to be synchronized
same software version build number on all pov clients that have to be sychronized
functioning basic synchronization

4. For best results do
use same type (or at least perfomance class) of players
use same type of monitors
disable all monitor „image optimization“ settings
use identical (video and network) cable types and lengths

5. Setup Basic-Synchronization
add CD:\POVClient\hardware.ini\hw_synchronizer.ini (= section [Synchronizer]) into C:\FeldTech\hardware.ini of all pov clients that should play synchronized content
default basic synchronization uses Type=UDP and Port=4010
this default setting generates a UDP broadcast to (all reachable devices)
define one and only one synchronization master to trigger switching on all synchronised slaves. To define the master: make sure Master=1 is set (no ; in front) and Slave=0 (no ; in front) is stated
set all other pov clients to be slaves
make sure Master=0 is set (no ; in front) and Slave=1 (no ; in front)
in order to enable its new settings a pov client has to be restarted

6. Using Basic-Synchronization
connect per Screen-Manager to the pov clients
create a new event or open an existing Event-List or Interactive event
select the Extended tab
in Click- /Sync-Settings select:
„Synchronize across players“
„Interactive list, synchronized across players“ allows
switching at defined actions across all players
than present in the master list
for the list respectively interactive event

7. Validate Basic-Synchronization
synchronization can be checked in the debug log (pov client web page)
master:
slave:

8. Synchronization of tickers
news/text and rss tickers can be synchronized in such a way to appear as be running as one single ticker over several screens.
has to be configured with one extra line for each pov client in its respective [Synchronizer] section with the keyword SyncedGeometry and its four variables entered suitably for the respectiv pov:
SyncedGeometry=[x origin, y origin, height of this pov client in pixel , height of this pov client in pixel]
Example for three monitors with 1920x1080 pixel panels mounted side by side: The needed line for the first (left) one is SyncedGeometry=[-3840,0,1920,1080]. The [Synchronizer] section of the second pov has to contain the entry MonitorSyncedGeometry=[-1920,0,1920,1080] and the one of the last pov (on the right): SyncedGeometry=[0,0,1920,1080]
this feature/function will work for all news and rss tickers enterd per Screen-Manager as synchronized easescreen event. So just enter the exactly same ticker marked as synchronized on all needed povs at the perfect space in the layout and do schedule them for exactly the same time.

9. Setup Frame-Synchronization
add CD:\POVClient\hardware.ini\hw_timesync.ini into C:\FeldTech\hardware.ini of all pov clients which have to be synchronized
make sure basic synchronization is working (properly)
default settings for this synchronization:Type=TCP and Port=4020
TCP is mandatory for this synchronization method!
define one and only one synchronization master responsible to switch the synchronized events on all slaves.
to define a master make sure Master=1 is set (no ; in front) and Slave=0 (no ; in front)
set all other pov clients to be slaves
make sure Master=0 is set (no ; in front) and Slave=1 (no ; in front)
define the IP= of the Master pov client and remove the ; in front
to enable its changed settings a POV-Client has to be restarted

10. Using Frame-Synchronization
connect with the Screen-Manager to the pov clients
create a new event (video or picture) within an existing and synchronized Event-List (see basic synchronization)
no additional settings required
in video events select Playback / Timing Tab and set:
Run multiple instances of the same video
do not disable looping (on the slaves)
synchronized Event-Lists must contain at least two events

11. Validate Frame-Synchronization
synchronization can be checked in debug log (web page of pov client)
master:
slave:

12. Validate sync visually
perfect synchronisation might last at least two loops of the easescreen event list to calculate file loading speeds and network correction.
press STRG+ALT+i to obtain the information bar of the pov client to inspect
on synchronised pov clients additional data is displayed:
time stamp
time difference to master (delta)
average time delta to master
current playback speed
horizontal line to compare synchronisation optically

13. Technical facts about synchronization
easescreen tries to be as accurate as technically possible by using a separate timer, calculation of file loading speeds and network correction.
the time for a screen refresh at 60 FPS is around micro seconds
the average delta between to fast computers is less than 100 µs
on top of the 100µs difference between the rendering on two players you have to add up:
the processing time of the graphic card
video signal transformation (pc)
video signal transformation (monitor)
image processing (monitor)
delay of internal monitor refresh clocks