User Manual-MADI

Chapter 2: HD OMNI Overview 7
Phase Invert Inverts the phase for the Channel 1
and Channel 2 front panel inputs. The Phase In-
vert button LED lights when this option is en-
abled.
When Link 1 & 2 is disabled, Phase Invert can be
independently enabled (or disabled) on Chan-
nels 1 and 2 by pressing the PREAMP Encoder to
select the desired channel.
PREAMP Display Shows the gain value (+10 to
+65 dB).
When Link 1 & 2 is disabled, gain boost or atten-
uation for either Channel 1 (P1) or Channel 2
(P2) can be independently adjusted by pressing
the PREAMP Encoder to select the desired chan-
nel.
PREAMP Encoder Lets you adjust the input gain
for MIC and INST inputs (by rotating the en-
coder), and toggle front panel controls between
the two preamp channels (by pressing). Press
the encoder to toggle between P1 and P2 (Chan-
nel and Channel 2). Turn the encoder clockwise
to increase and counterclockwise to decrease the
input gain for the selected channel (from +10 to
+65 dB). Gain can be adjusted in 1 dB incre-
ments.
LINK 1 & 2 Links (or unlinks) controls for the
Channel 1 and Channel 2 front panel inputs.
The Link 1 & 2 button LED lights when this op-
tion is enabled. If the two channels are linked,
when levels between channels 1 and 2 are differ-
ent, the difference is maintained when changed
the levels until an upper or lower limit (+10 or
+65) is reached. When the upper or lower limit
is reached by one of the channels, you can con-
tinue to adjust the level of the other channel un-
til the limit is reached, but the difference be-
tween the two channels is no longer
maintained.
INSERT Enables (or disables) the returns for any
hardware inserts connected to the back panel
Channel 1 and Channel 2 input and output
pairs. Note that the sends are always active.
When Link 1 & 2 is disabled, INSERT can be in-
dependently enabled (or disabled) on Channels
1 and 2 by pressing the PREAMP Encoder to se-
lect the desired channel.
Preamp Signal Path
The Channel 1 and Channel 2 front panel in-
puts use the following signal path:
Input Signal > Pad > Preamp > HPF > Insert >
Limiter > ADC > Phase Invert
Synchronization and Sample Rate
LEDs
Sync Mode LEDs
The SYNC MODE LEDs indicate the current
Clock Source as set in the Pro Tools Hardware
Setup (see “Pro Tools Hardware Setup” on
page 23) or on HD OMNI in SETUP mode (see
“Clock Source (CLOCK)” on page 45).
INT (Internal) Indicates the HD OMNI sample
clock is generated by its internal crystal oscilla-
tor, as determined by the session Sample Rate.
EXT (External) Indicates that the HD OMNI is ei-
ther using the EXT CLOCK IN port or a digital
source for system synchronization.
Synchronization and Sample Rate LEDs