MOTU HDX-SDI User Manual page 42

Bank A (1-8)
Bank B (9-16)
Figure 6-12: Input bank assignments.
The first three choices are Analog (TRS), SDI/
HDMI and AES/EBU (DB-25). These are all 8-
channel banks. The fourth choice,
AES/EBU (BNC) + Analog (RCA), is a four channel
bank referring to the stereo AES/EBU BNC input
on the rear panel (channels 1-2 in the bank) and
the stereo RCA analog inputs on the front
(channels 3-4 in the bank).
AES/EBU input
The HDX-SDI provides two different banks of
AES/EBU input:
Stereo BNC
■
Eight channels on DB25 breakout
■
These two banks operate exclusively. For example,
if you choose AES/EBU DB-25 for Bank A, the
AES/EBU (BNC) + Analog (RCA) bank will be
grayed out in the menu for Bank B, since they
cannot both be enabled at the same time.
Analog input
Similar to the AES/EBU banks explained above,
The HDX-SDI provides two different banks of
analog input:
Stereo RCA
■
Eight channels of TRS
■
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These two banks operate exclusively. For example,
if you choose Analog (TRS) for Bank A, the
AES/EBU (BNC) + Analog (RCA) bank will be
grayed out in the menu for Bank B, since they
cannot both be enabled at the same time.
Grayed out input menu items
If an item is grayed out in the Bank A or Bank B
input menus, it is disabled. See the previous two
sections for further information.
Analog input trims
Use the analog input trim controls (Figure 6-11 on
page 41) to apply up to +22 dB of gain or -12 dB of
cut to each individual TRS analog input. You can
also apply up to +18 dB of gain or -6 dB of cut to
RCA analog inputs.
Outputs
Use the buttons provided to assign each audio
output format to the desired HDX-SDI output
channel bank (1-8 or 9-16). You can assign two or
more formats to the same bank, in which case the
audio output is mirrored (duplicated) on each
output format.
Mirroring output banks
To make two or more output banks produce the
same audio output, simply assign them to the same
output bank (either 1-8 or 9-16).
Disabling output banks
To disable a bank completely, click its Off button.
Audio banks and front-panel metering
The HDX-SDI front panel provides two banks of
activity LEDs for audio input and output. Bank A
represents channels 1-8 and Bank B represents
channels 9-16. These input meters and output
activity LEDs only operate when at least one bank
is assigned to them. In addition, they are only
active when audio is being sent to/from the
computer (i.e. the HDX-SDI driver is sending
audio to/from a host application).
M O T U V I D E O S E T U P