Hitomi to showcase new latency feature for MatchBox at NAB 2022
Hitomi Broadcast will showcase the new latency feature for its MatchBox audio video alignment toolbox at NAB 2022. This latest enhancement to MatchBox’s capabilities measures the actual time of flight of video signals from the front of multiple cameras or at various points through the broadcast chain with millisecond accuracy.
With MatchBox Latency, a measurement is taken simply by holding an iPhone up in shot running the MatchBox Glass app, which is free to download. A signal is then sent back to the MatchBox Analyser located in an OB truck or MCR, simplifying the task of measuring latency and giving a lip-sync reading.
Hitomi broadcast director Russell Johnson said: “When you watch someone being interviewed from a remote location there is often a pause in continuity with the handover from the studio and return. Latency measures how long that pause needs to be for each link in order to achieve perfect timing. It can ascertain if the pause is comfortable for a two-way conversation or if it is too long to be able to interact in a live situation and all questions have to be asked upfront.”
When measuring latency within the broadcast chain, MatchBox Generator can be deployed as a test signal with the Analyser picking up the results downstream.
“Much is talked about the need for low latency, but it is rarely quantified,” Johnson continued. “Now it can be. MatchBox is already deployed worldwide with major-name broadcasters so widespread adoption of this new technology can be rapid. It will bring changes, but they will be measured changes.”
This product is designed to help broadcasters prepare for live transmissions as well as virtual studios and other applications where timing needs to be known, not guessed. It can form part of a toolset helping broadcasters move to more eco-friendly workflows while still retaining quality.