User`s guide

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Primary Row: If your system is not listed, you need to know the primary Row and
Starting Column numbers for your NLE system. If you know those values from the test
described earlier in this chapter, please enter those numbers here. Note: Secondary Row
information is not important.
Add Captions using AJA Io Hardware
To use AJA Io hardware with MacCaption the Final Cut Pro time line must be configured for a
video size of 720x486. Export an NLE video from MacCaption using the Animation codec at the
uncompressed resolution and import it into FCP. When you play the imported video clip the
closed captioned video will appear on the SDI, component and composite video outputs. To
merge the imported closed caption video with the underlying video material put the imported clip
on a higher video track than the rest of the video and crop the imported clip up from the bottom
leaving the closed caption data at the top. When cropping the imported clip you should leave one
extra line of black below the closed caption data to act as a clean separator line between the
closed caption data and your video program. The AJA Io hardware cannot be used to export
video containing closed captions in DV video.
Add Captions using Avid ABVB Hardware
To superimpose closed caption data onto an actual video image, place the QuickTime movie
onto its own video track above your background image. Place a Blend:Picture-In-Picture effect
onto the imported clip and set the PIP Size to 100 and V Position to -941 for a Media Composer
Version 6 or to -991 for a Media Composer Version 7. This PIP effect positions the closed
caption control codes that are located towards the bottom of the QuickTime image file to line 1
of the NLE image. Line 1 of the NLE image corresponds to Line 21 of the VBI output signal.
This has been found to be the most reliable way to superimpose clean image data onto line 21 of
the VBI.
Add Captions using Avid Express Pro
Make sure to set Avid Express Pro HD to allow it to pass line 21 caption data. Two settings are
required to allow Avid Express Pro HD to work with MacCaption. These are
• Preserve VBI which is located in the video output tool and
• Set Effects Aperture to ITU601 in the General Settings