User Manual-Mac

94
Chapter 9, Using Matrox MXO2 with Supported Programs
output for display on an SDI or analog video monitor that supports closed
captioning, or you can choose to overlay the closed captions on all the
MXO2 video outputs for display on video monitors that do not support
closed captioning.
Working with Matrox 4VANC AFD
MXO2 lets you capture the AFD (active format description) data stored in your
video’s VANC, along with your video, and restore the AFD data during playback,
using the Matrox 4VANC tool. This section details how to capture and play back
Matrox 4VANC AFD using Adobe Premiere Pro. You can also use Premiere Pro
to export a sequence with Matrox 4VANC AFD to a file for playback using
Premiere Pro. For more information about any of the features mentioned in this
section, see your Premiere Pro documentation.
¦NoteMatrox MXO2 Mini does not support AFD data.
Capturing Matrox 4VANC AFD
When using MXO2’s SDI input for capture, Matrox 4VANC lets you
preserve the AFD (active format description) data from your video’s VANC
(vertical ancillary data space) by capturing the data as an audio track.
If Matrox 4VANC capture is enabled in the
Matrox Utilities preferences
window, Matrox MXO2 uses audio track 15 to preserve the AFD data during
capture in Premiere Pro. The resulting file is an uncompressed 24-bit 48 kHz
audio file that contains the AFD data. The Matrox 4VANC audio track that
contains the AFD data can then be played back in Premiere Pro. During
playback the AFD data is restored to your HD/SD video’s VANC through
MXO2’s SDI or analog output (see “Playing back Matrox 4VANC AFD” on
page 94). Because audio track 15 is used for capturing AFD data, that
channel will not be available for capturing audio. To capture Matrox 4VANC
AFD:
a Enable capture of Matrox 4VANC AFD in the Matrox Utilities
preferences window (see “AFD capture and playback” on page 68).
b Specify your capture settings in Premiere Pro as detailed in “Defining
your capture settings” on page 86.
c Capture as you would normally.
Playing back Matrox 4VANC AFD
During playback, MXO2 retrieves the AFD data from the Matrox 4VANC
audio track that is assigned to audio output 15 in Premiere Pro, and restores
the AFD data to your HD/SD video’s VANC through MXO2’s SDI or analog
output. Set your playback settings as follows:
a In Premiere Pro, choose File > New > Sequence. In the New
Sequence
dialog:
• In the Tracks pane, select Multichannel from the Master list.