User Manual-Mac

71
Closed captioning and AFD
1 From the Apple menu, click System Preferences, and then click the
Matrox Utilities icon.
2 Click CC/AFD.
3 Select Use Matrox 4VANC CC/AFD.
4 Under Capture, select Preserve SDI VANC closed Captioning using
audio track 16
to capture the digital closed caption data from your source
video’s VANC using SDI audio track 16.
¦NoteTo capture digital closed captioning, you must select SDI as your
video input source (see “Specifying your A/V input settings” on page 57). You
must also genlock to your capture source and not an external genlock source
(see “Specifying your genlock settings” on page 56).
5 Under Playback, select Retrieve closed captioning from audio track 16
to retrieve the Matrox 4VANC closed caption data from track 16 in your
video application, and play back the video with closed captioning using
MXO2’s SDI or analog output.
6 If you selected Retrieve closed captioning from audio track 16 in step 5,
specify where you want the closed captioning data to be embedded in the
video signal during playback. Since MXO2 features simultaneous outputs,
you can select more than one of the following options.