• Understading Workstation Roles

Understading Workstation Roles

One of AV-Playback’s key features is its ability establish a node based a network hierarchy with multiple workstations containing the AV-Playback program. 
By having a combination of individual workstations configured to function as one, offers you the ability to create a large scale topology of interlinking workstations, expanding the total number of destinations all while reliving the stress a single workstation with many available outputs might experience.             

As in any hierarchy, there are multiple roles that members are given. In our case there are four keys roles a given workstation can have.
When this role is selected, it effectively does not belong to any hierarchy, instead it operates independently and can be connected to any other node.

NOTE: This mode is the systems default.

As the name implies the Master is who any slave nodes would be attached to. The workstation with this role would be the one requiring an operator.
The master can simultaneously be connected to a single ‘Backup’ along with multiple Remote Slave’ nodes.

NOTE: Establishing connections to remote nodes can only be facilitated only from a master workstation. Refer to the

Connection Manager

to learn how.  


Backup Slave:

When a backup slave is attached to a master, it will follow along, in real time, with many of the actions taking place on the master workstation.
Functions copied:
Displaying a playlist controller as well as opening a copy of the master’s playlist file. If a copy of this particular playlist file is not currently saved on the backup, the master will transmit it directly. Once received, the backup will save it locally. This important if the master workstation become entirely unusable due hardware failure.
Adding media clips. Like the copying of a playlist file, if the backup node does not currently have the newly added media clip, the master will attempt to transmit that file and have it copied directly into the default file store path established on the backup slave.
Although before this happens a message prompt will appear asking if you would like to continue. Depending on the size of the file transfer will vary.  So, you have a better idea, a small window will appear containing progress bar.
This window closes automatically once the transfer is complete.

NOTE: There is a limit to the file size that can be transmitted this way. For any files larger than 2.1


a warning prompt will appear, suggesting that you use Windows file explorer instead.  

Transport commands: Start, Pause, End, Time Out and Position Scrub.
Selection of a clip for standby, either when clicking on the list row or via the Previous and Next buttons.

NOTE: Transport and selection commands issued to the Master by way of a remote control surface or external device command will also be forwarded on to the backup slave.    

You can also set a desired delay time for the ‘Start’ command. This determines the amount of time that will elapse after the ‘Start’ button is pressed on the master and when the command is received by the backup slave. This is common practice so if the master crashes mid clip it gives enough time to switch over the backup’s video output without having the audience lose any video’s content. Refer to Menus to see how you can adjust this delay.
If a case arises that after a you connect a backup slave to a master and find you need to take full control of that backup slave. To avoid activity on the waster workstation effecting operations to the backup you can temporarily disconnect the two without doing a full disconnect, by using a small popup accessed via the app’s lower status bar. Just to the left of where it displays the current workstation role, you will see the word “Enabled” and a small arrow.
Click on this arrow to show the menu and then click ‘Disable’.     

Remote Node:

When configured as a ‘Remote Node’ there requires very little direct interaction, instead all functions are handled by the operator of the ‘Master’ workstation. This makes it a perfect for situation for when an auxiliary destination some distance away also needs to be operated in conjunction with local destination screens. Since the connection between the two is with inexpensive cat5, it is also a very cost-effective method.
Another reason you may want to take advantage of this feature is if the workstations you are working with do not offer enough video monitor outputs or if it is a weaker computer and smoothly running multiple clips simultaneously just isn’t possible, you can leverage the GPU on other computers to get the needed outputs.       
Functions handled remotely are just about everything would have if the destination was local. From the master's perspective, a connected remote node is just another available output screen. There is however some function best performed at the remote workstation. Since you can take advantage of its own audio output and use it independent of channels coming out of the Master, the choice of which available audio device used and its gain levels must be set at the remote. Refer to Menus to see how you set those properties.

NOTE: As with the ‘Backup Slave’, the Remote employs the same automatic file transfer functions when adding media clips the remotes playlist.