Lexicon OMEGA - ANNEXE 723 Owner's Manual page 9

OMEGA
The Front Panel
™
When a Monitor switch is in Mono, it does not change the signal going to the comput-
er via the USB bus in any way—they will still be separate and stereo in the computer.
MONITOR MIX CONTROL
The Omega gives you the ability to hear your analog input signals directly and imme-
diately while recording without having to adjust levels in software and before the delay
caused by digital converters and computer recording latency. This zero-latency analog
monitoring is controlled by the Monitor Mix knob, which you can use to adjust the
blend between the Omega's live analog inputs (called "Direct") and any sounds com-
ing back from the computer via USB ("Playback"). To adjust the playback mix com-
ing back from the computer (previous tracks, effect returns etc.), use the faders on the
Mixer screen of the software. To hear only the live source input signals plugged into the
Omega, turn the Mix knob fully left to Direct. To hear only the mix from the computer,
turn the Mix knob fully right to Playback. Any signal coming in on the S/PDIF input
is converted to analog and sent to the mix control so that you can monitor this input
directly just like an analog input. The output from the Monitor Mix control is routed
directly to the Line and Headphone outputs. This ability to easily control the relative
levels of computer audio playback and latency-free live analog inputs is very useful
when overdubbing.
OUTPUT LEvEL
This knob controls the overall output level of the Omega's Line and Headphone outputs.
METER ASSIGN
This switch selects which signals (signals assigned to USB 1-2 bus or USB 3-4 bus)
are being assigned to the Omega's meter ladder. This LED Meter shows the signal level
into the A/D converters. When the Meter's Clip LEDs light, analog input signals are
clipping the A/D converter. Adjust the Mic and Line gain knobs so that the -6 dB LED
flashes only occasionally.
USB LED
When the blue USB LED is on, it shows the Omega Studio is communicating with your
computer via USB and audio and MIDI signals can pass in and out of the system. If the
USB LED is blinking, the Omega is not communicating with your computer.
+48v LED
This LED indicates that 48 Volt phantom power is active on the Mic 1 and 2 inputs,
providing phantom power for condenser microphones that require it to operate. Turn
Phantom Power on or off as needed by the switch labeled +48V Phantom on the
bottom right of the rear panel.
S/PDIF ASSIGN
This button assigns the S/PDIF digital input to the USB 1-2 audio bus. When S/PDIF
is enabled, only the external digital input will be sent to the computer via the USB 1-2
bus and any analog inputs that were assigned to USB 1-2 are not sent to the computer,
although they still may be heard in the Direct Monitor Mix. Analog inputs can still be
assigned to the USB 3-4 bus while the S/PDIF Assign is enabled, allowing both digital
and analog audio to be recorded simultaneously.
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