The solution combines Wohler's RadiantGrid media transformation and automation platform with Nexidia's QC tool for automated caption, video description and language verification, enabling broadcasters to validate captions and automatically check quality after transcoding — within one workflow, faster than real time.
The RadiantGrid solution extracts closed captioning from media sources and inserts the data back into the transcoded output file. It handles the insertion of SCC or other aligned caption data files into the VANC or VBI space, or produces new ancillary outgoing files, such as SMPTE-TT or SAMI. Caption insertion and conversion can be done with or without transcoding of the video essence when using compatible video containers.
From there, Nexidia QC advances the process by verifying quality automatically to ensure that the right caption file appears against the right media in the right language, and that it is properly timed, all to ensure compliance.