V4Hd Audio Settings - MOTU V4HD User Manual

Conversions that are not supported
If the menus in the Playback Signal Path and
Capture Signal Path diagrams don't provide the
format you are looking for, it means that this form
of conversion either doesn't apply, or it is not
supported by the V4HD video conversion
hardware. For these forms of conversion,
summarized below, use Final Cut Pro or
Compressor to perform off line transcoding on the
computer:
HD to HD cross conversion — use transcoding
■
to convert 720 to 1080 or vice versa
Frame rate conversion — use transcoding to
■
convert 29.97 fps to 30 fps (or vice versa), 23.976
fps to 24 fps, 59.94 fps to 60 fps, etc.
Conversion from NTSC to PAL (or vice versa)
■
Down conversion from 1080p 23.976 or 1080PsF
■
23.976 to NTSC while doing full raster capture or
playback. (In this case, SD output is black.)
Creating your own capture/playback presets
If the capture or playback preset menus don't have
the preset you are looking for, you can create your
own presets, as long as they conform to the
guidelines stated earlier in the "Supported
conversions" section.
To create capture presets, go to the Audio/Video
Settings window, click the Capture Presets tab
(Figure 7-2), select an existing V4HD preset (it
doesn't matter which one) and click the Duplicate
button. Modify the settings as desired. If you
intend to choose a non-V4HD codec, see "Other
codecs" on page 60.
The procedure for creating sequence/playback
presets (in the Sequence Presets tab) is similar.
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V4HD AUDIO SETTINGS

To access basic V4HD audio settings:
1 Choose Final Cut Pro menu> Audio/Video
Settings.
2 Select the A/V Devices tab.
3 Choose the V4HD for audio playback.
4 Click the Options button to set the number of
channels, sample rate, etc. These settings will
modify the V4HD hardware so that it matches the
setting in Final Cut Pro.
You can verify the V4HD's audio settings using
MOTU Audio Setup (Figure 8-1 on page 72).
Choosing audio banks
The V4HD provides four 8-channel banks of
simultaneous audio input and output. Each bank
can be enabled or disabled. In Final Cut Pro, the
V4HD's channels are simply numbered 1, 2, 3, 4,
etc. How do Final Cut Pro's channel numbers
correspond to the V4HD's enabled audio banks?
The answer is the order of the 8-channel banks.
The V4HD audio banks always go in the following
order, from lowest channel number to highest:
1. Analog
2. AES/EBU
3. ADAT
4. Embedded (SDI/HDMI)
F I N A L C U T P R O