V4Hd Hardware Settings - MOTU V4HD User Manual

Other codecs
The V4HD provides hardware-assisted capture
and playback over FireWire 400 or 800 for any HD
codec supported by Final Cut Pro. The V4HD is
optimized for codecs that are similar in nature to
ProRes HQ (around a 6:1 compression ratio or
higher). To specify a codec other than ProRes or
DVCProHD, choose the V4HD Apple ProRes
preset that most closely matches the video format
and frame rate you wish to use, duplicate it and
then simply modify the duplicate preset, choosing
a different codec from the Compressor menu
(Figure 7-4). For further details about creating
your own presets, see "Creating your own capture/
playback presets" on page 64 and "Supported
conversions" on page 63.
Figure 7-4: Specifying an HD codec. Be sure the Input menu is set to
'Full Raster' (either 1920 x 1080 or 1280 x 720).
Be sure to choose the V4HD Full raster capture
preset that corresponds with the video format and
frame rate you are working with. Like ProRes HQ,
best quality can be achieved over FireWire 800 with
the Full Raster mode option (Figure 6-19 on
page 48) set to FireWire 800 HQ (page 49). A four-
or eight-core Intel Mac may also be required,
depending on the performance of the HD codec.
However, excellent results can also be achieved
over FireWire 400 with other codecs that have a
compression ratio similar to (or higher than)
ProRes standard mode (around 140 Mb/s).
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V4HD HARDWARE SETTINGS

Once you've chosen a workflow and the
corresponding presets in Final Cut Pro's Easy Setup
and Audio/Video Settings windows (Figure 7-1
and Figure 7-2), open the MOTU Video Setup
application (Figure 6-1 on page 41) to view the
V4HD's hardware settings and make any
adjustments, if necessary.
Capture settings
To access the V4HD's capture settings, click the
Setup tab to view the Capture Signal Path
(Figure 6-3 on page 43) and Setup tab settings
(Figure 6-19 on page 48). In the Setup tab, make
sure that the Enable video option is enabled and the
Playback only (disable inputs) option is disabled.
Choosing a video input
To specify the video input for capture, choose the
desired V4HD video input from the Video Source
menu (Figure 6-3 on page 43).
Other capture settings
To make the V4HD automatically detect the format
of the currently selected video input in the source
menu, choose Format and Genlock from the Auto
Detect Input Format menu.
If you will be up converting in the V4HD hardware
while capturing, click the Convert tab (Figure 6-29
on page 54) and set the desired deinterlacing
mode.
For details on other Capture settings, review
Chapter 6, "MOTU Video Setup" (page 41).
Playback settings
Click the Playback tab to view the Playback Signal
Path (Figure 6-2 on page 42) and Playback tab
settings (Figure 6-27 on page 53).
In the Playback Signal Path (Figure 6-2 on
page 42), the Playback settings menu displays the
video format you've chosen in Final Cut Pro for
F I N A L C U T P R O