Ancillary Data

Ancillary data is information such as closed captioning or embedded audio that is included in the non-active video portions of the video signal. These portions include the Horizontal Ancillary Data Space (HANC) and Vertical Ancillary Data Space (VANC).

Note: Only external inputs that are selected on an aux bus assigned to an output can maintain their ancillary data. All other sources and outputs configurations have their ancillary data stripped.