Insertion of closed captions CEA-608/CEA-708 into SDI

FAB Subtitler BCAST/XCD can insert CEA-608 and CEA-708 closed captions into SD-SDI and HD-SDI by using a FAB PCIe card

The following configuration is necessary for insertion of American Closed Captions into SDI:

Please note that CEA-608 and CEA-708 have quite many limitations:

  • a very limited character set is available, therefore not all national characters can be used
  • not more than 32 characters per subtitle line can be used
  • the transmission speed is limited to 2 characters per frame

Please consider the above limitations when transmitting closed captions.