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Tally (Roxanne): Difference between revisions
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MuxControl is a thing
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The tally system, also known by its codename Roxanne, is formed of a series of blocks mounted upon the camera hot-shoe mounts, which should illuminate when that camera is live using some data fed out by the [[Magic_DaVE|vision mixer]]. [[File:Tally_and_control_units.jpg|thumb|right|alt=Tally control unit and blocks|The Tally system: four bricks, the control unit and splitter]] | The tally system, also known by its codename Roxanne, is formed of a series of blocks mounted upon the camera hot-shoe mounts, which should illuminate when that camera is live using some data fed out by the [[Magic_DaVE|vision mixer]]. [[File:Tally_and_control_units.jpg|thumb|right|alt=Tally control unit and blocks|The Tally system: four bricks, the control unit and splitter]] | ||
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=Splitter (Menorah)= | =Splitter (Menorah)= | ||
The splitter, or Menorah as it's affectionately known, contains 5 RJ-45 jacks. Each of the 8 connectors on each jack is wired to the same connector on all the other jacks, causing it to look a little like a Menorah before being installed in the box. Despite looking like it would work for computer networking as well, it won't as all the connections are wrong, however it is designed to be placed at the point the [[Umbilical|umbilicals]] meet to connect to the wall, splitting the single line from the control room into one for each brick. | The splitter, or Menorah as it's affectionately known, contains 5 RJ-45 jacks. Each of the 8 connectors on each jack is wired to the same connector on all the other jacks, causing it to look a little like a Menorah before being installed in the box. Despite looking like it would work for computer networking as well, it won't as all the connections are wrong, however it is designed to be placed at the point the [[Umbilical|umbilicals]] meet to connect to the wall, splitting the single line from the control room into one for each brick. | ||
A second Menorah was built for [[hist:Battle Of The Bands 2014|BoB 2014]]. | |||
A third one built into a patch panel for [[Kenobi]] when [[hist:Robert Walker|Robert Walker]] got bored over Easter 2014. | |||
=Control Unit= | =Control Unit= | ||
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==Connecting it up== | ==Connecting it up== | ||
The power connector is fairly obvious, anything doing more than about 7V should suffice, the 12V ones (cameras inc. Skycam) will do perfectly and it has an internal regulator. Maximum is around 24V | The power connector is fairly obvious, anything doing more than about 7V should suffice, the 12V ones (cameras inc. Skycam) will do perfectly and it has an internal regulator. Maximum is around 24V. The RJ-45 connector goes to a length of Cat-5 cable running to the splitter in the studio, and the male DB-9 connector (like a monitor connector) goes to the GPI port on [[Magic DaVE]]. This has a slightly special cable, it's shown in the picture, but is a purple cable with a block plug on one end and a yellow on the other, should be easy to spot. Finally the female DB-9 connector can be run to a PC for serial communication. This means even when vision mixer input channels are reassigned and moved around on account of have 5 or more sources, the correct brick lights up when a camera is mixed to. | ||
==How it works== | ==How it works== | ||
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==The magic remapping trick== | ==The magic remapping trick== | ||
At power-on, the system should default to each vision mixer input channel, 1-4 mapping to tally channels 1-4. A computer can connect using a serial link at 9600 baud to the control unit. Using [[YVP_Protocol|YVP Protocol]] the computer can remap which vision mixer input each tally output follows. Ideally, this should be handled by the software controlling the mux that feeds the vision mixer, so that when a command is sent to the mux to assign a camera to a vision mixer channel, the corresponding command also goes to the tally system. At the time of writing, the only known | At power-on, the system should default to each vision mixer input channel, 1-4 mapping to tally channels 1-4. A computer can connect using a serial link at 9600 baud to the control unit. Using [[YVP_Protocol|YVP Protocol]] the computer can remap which vision mixer input each tally output follows. Ideally, this should be handled by the software controlling the mux that feeds the vision mixer, so that when a command is sent to the mux to assign a camera to a vision mixer channel, the corresponding command also goes to the tally system. At the time of writing, the only known examples of this is the OB Director Control software used for Woodstock 2012, which might be in the Software drive, and is definitely in the YSTV Git repository; and [https://github.com/rrah/MuxControl MuxControl]. The software running on the control unit microcontroller is also with this OB Director software. | ||
[[Category:Technical]] | [[Category:Technical]] | ||
[[Category:Home-Made]] | [[Category:Home-Made]] | ||