Broadcast Beat Magazine 2017 NAB Show NY/SMPTE Special Edition - Page 36

cant amount of intelligence built into state-of-the-art prompt- ing monitors. This intelligence allows prompting monitors to be identified on the IP network and controlled both locally and remotely by a single operator from a centralized location. The operator can access multiple prompters and determine, at a glance, whether each is func- tioning correctly. Such a setup also ensures seamless upload of new scripts from the pro- duction facility’s in-house news- room system for output on the operator’s chosen monitors. control signals over an IP net- work to the prompting monitor to manage script, speed, and other attributes, whether the monitor is located down the hall or across the globe. With built-in intelligent scroll technology, each monitor can render the script image locally from small unicast data pack- ets sent from the prompting software. In this manner, the prompting system can avoid sending video over IP and side- step the drawbacks that go with it, including lack of bandwidth, latency issues, and synchroniza- tion errors. With much less data sent over the IP network, all of the monitors can remain in con- stant communication with the master application to ensure reliable synchronization and easier operation. Reduced Cabling for Improved Productivity Enhanced Efficiencies As we’ve mentioned, the prompting solution should con- nect to the studio IP network to allow a single operator to con- trol the system locally or from anywhere in the world. (This configuration allows, for exam- ple, an operator in New York to control a prompter in New York and then, from the same workstation, begin operating a prompter in Los Angeles.) The prompting system can send For the first time in the his- tory of prompting, an IP-based workflow makes such capabili- ties possible with speed and accuracy. It’s easy to see how IP prompting might help reduce crew costs across locations and also serve as a backup for stu- dios in different regions of the world. Using on-camera monitors with built-in intelligence, an IP-based prompting system can allow all elements to be connected with off-the-shelf Ethernet (Cat-5/6) cable. Because just one stan- dard of cable is required, the prompting system can be easily and efficiently integrated with other equipment. should integrate key IP technol- ogies tightly into the prompt- ing infrastructure. One such technology is Network Time Protocol (NTP), a networking protocol for clock synchroniza- tion between computer systems over packet-switched IP net- works. Within a standard work- flow, prompter clocks require additional time code genera- tors and networks to produce linear time code (LTC) or verti- cal interval time code (VITC). By utilizing NTP, the prompting system can allow all devices on the network to be accurately synced both locally and glob- ally — and keep cabling require- ments to a minimum. Flexibility, Ease of Use, and Reliability In addition, Power over Ethernet (PoE) can play a key role by removing the need for addi- tional power supplies to drive devices such as desktop hand controllers and foot controllers. Large production facilities can route hand controller signals dedicated to each individual prompting monitor through an Ethernet switch with a PoE injector. At the same time, inde- pendent prompter operators can use a scroll engine with PoE to provide