Adding intelligence and performance to your workflow
lock synchronization and perfect lip sync across all cameras . It ’ s a major feat of broadcast engineering , because in a live TV broadcast , there ’ s no time to correct synchronization and lip sync issues on so many cameras .
The protocol operates on a system provided by VidOvation in partnership with AVIWEST . The “ Live PD ” crew uses 36 bonded cellular transmitters , including one for each of two HD cameras in every patrol car and two additional camera operators . Additionally , there are four high-gain , external antenna units installed on each patrol car so the bonded cellular transmitters in the trunk can receive a strong and resilient
signal . Throughout the threehour show two nights a week , the transmitters feed up to four video channels and eight audio channels of live , high-quality video back to the control room in New York from every patrol car in all six cities . In the control room , a receiver , decoder , and distribution platform receive the live video feeds and dumps them into an instant replay system to receive analysis and metadata . From there the system delivers the video to air for the live broadcast . Genlock input on the transceivers — the only ones in the industry with multicamera genlock capability — are instrumental in maintaining synchronous cameras and perfect lip sync .
The Bottom Line
Sports broadcasters or others looking to increase reliability while cutting transport costs would do well to consider the protocol discussed in this article . If the technology can work for an unprecedented , challenge-ridden REMI production like “ Live PD ,” imagine what it can do for live sports and events . And for news agencies and networks , who were unable to do multicamera news shoots in the past because of video and audio synchronization issues , they now have the option of producing a live remote production using multiple cameras while maintaining genlock and lip sync .
DISCOVER YOUR CREATIVE FREEDOM
NAB 2018 | Booth # SL8716
Storage and Network Connectivity Experts
Adding intelligence and performance to your workflow
52 • Broadcast Beat Magazine • www . broadcastbeat . com