Closed captioning issues highlight need for hardware solutions

October 8, 2013 - 1:49pm
The video tranport chain must be optimized to support closed captioning delivery.

In more ways than one, the realities of the digital world have contributed to a renewed effort in making closed captioning more ubiquitous and reliable. As the Federal Communications Commission extends closed captioning rulings to cover a variety of Internet content and more users rely on mobile devices to watch video in multichannel distribution environments, it becomes critical for network and service providers to invest in hardware that can deliver closed captioning.

Some of the increased attention given to closed captioning comes from Internet culture. Errors in live closed captioning, while once a source of fleeting amusement in the home, can now be preserved forever as enterprising users take pictures and screenshots of miscues and share them, however there are more serious examples caused by errors.

A significant closed captioning measure went into effect on September 30. Broadcast video that appears with subtitles on TV and is then transmitted over Internet protocol (IP) must now come with relevant captions equal to or improved on those present in the original broadcast, Lexology reported. The "substantial" quality of the changes made to the original broadcast are what makes this type of video different from previous kinds under the FCC's policy.

Closed captioning pass-through solutions
There are several different hardware products needed to support closed captioning pass-through:

  • Modular receiver decoders are key elements in the system infrastructure, as they facilitate the transmission and monitoring of closed captioning through each link on the video chain.
  • The DVB-S/S2 Satellite Modulator supports single and multistream MPEG video transport, enabling the transmission of closed captioning from broadcaster through satellite headends.
  • The Digital Media Gateway 3000 provides support at both ends of the chain, providing adaptable multiplexing software for the analysis and regeneration of all source tables.
  • Video transcoding solutions should be used to process live streams or file-based video.

Sencore provides reliable, cost-effective solutions for signal transmission and content delivery. Our line of receiver/decoders support all common video formats, blending industry-leading functionality with an evolutionary capacity for next-generation video transport demands. Contact us today to learn more.

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