MOTU V4HD User Manual page 39

The Playback Only (disable inputs) option in the
MOTU Video Setup software Setup tab
(Figure 6-19 on page 48) lets you force the V4HD
to stay in playback mode. Playback Only mode is
useful when you are at a point in your workflow
where you are not doing any capturing. For
example, you may have no inputs connected to the
V4HD hardware, or you may have inputs
connected, but you are not currently using them.
Playback Only mode keeps the V4HD hardware
from switching back and forth unnecessarily
between Playback and Convert (or Capture)
modes.
Audio only
In Audio only mode, all of the V4HD video features
are disabled and the V4HD operates as a
24-channel FireWire audio interface, which
provides three 8-channel banks of analog, AES/
EBU and ADAT optical I/O. (The fourth bank,
embedded audio, is disabled in this mode since
there is no video signal in which the audio could be
embedded.) To engage Audio only mode, go to the
V 4 H D B A S I C S
Setup tab in the MOTU Video Setup software
(Figure 6-1 on page 41) and disable the Enable
Video option (Figure 6-19 on page 48).
You must use Audio Only mode if you want to
resolve the V4HD's digital audio clock to an
external source, such as word clock, ADAT optical
or AES/EBU. For further information, see "Syncing
digital audio devices" on page 29.
Standalone
To put the V4HD in Standalone mode, unplug its
FireWire cable connection to the computer, or turn
off the computer. Standalone mode is very similar
to Convert mode: no video goes to FireWire and
the computer because it is disconnected, but the
currently selected video source is fed to all other
V4HD video outputs.
In standalone mode, you can use the front panel
LCD to put the V4HD into Audio only mode (see
"AV Mode" on page 102). Doing so turns the
V4HD into a standalone 24-channel, 12-bus audio
mixer. You can control the mixer from the front
panel LCD. See "CueMix Menu" on page 99.
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