User`s guide

MOTU VIDEO SETUP
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480i Setup
The 480i Setup option (Figure 6-19) lets you
choose between USA (7.5%) and Japan (0.0%) for
NTSC composite and S-video input and output.
Timecode Destination
The Timecode Destination menu (Figure 6-19) lets
you specify the video destination for timecode
generated or regenerated by the V4HD. You can
choose None, SD VITC (vertical interval time
code), SD-SDI or HD-SDI. For the SDI options, the
time code is encoded as standard embedded time
code in the chosen SDI stream. This setting also
determines the time code format to be transmitted
from the V4HD’s LTC output jack on the rear
panel. For example, if you choose SD-SDI, then the
LTC output will generate pull-down time code
aligned to the SD outputs. This distinction is
important, for instance, when converting 23.976
fps HD video to 29.97 fps SD video. In this case,
this setting determines whether the LTC output
consists of 30 frame or 24 frame timecode.
Enable Video
The Enable Video option (Figure 6-19) enables or
disables all of the V4HD’s video features. When
they are disabled, the V4HD operates as a
24-channel audio interface and mixer, or as a
stand-alone mixer. Disabling the video features
also allows you to resolve the V4HD to another
digital audio device via its word clock input, AES/
EBU input or ADAT optical input. See “Syncing
digital audio devices” on page 29.
Playback Only (disable inputs)
The Playback Only (disable inputs) option
(Figure 6-19) lets you disable the video inputs on
the V4HD. When this option is enabled, the
FireWire capture portion of the signal path
(Figure 6-3) disappears, as no capturing or
converting is possible. This mode is useful at times
during your workflow when you are playing back
video from your host software (during editing,
etc.) but you are not actively capturing or
converting. For example, this mode is
recommended when you have no video inputs
connected to the V4HD.
Figure 6-22: The Output tab settings.