User Manual
Page 28 of 45 
to the Analog Outputs. By manually assigning LSLOT sources to the Digital Outputs, 
these signals can be mirrored to the Aurora AES/EBU outputs as well. 
For example, to send USB audio streams to the digital outputs, assign LSLOT 1-16 
(for an Aurora 8, assign LSLOT 1-8) to the digital outputs as “SOURCE A” and set 
“TO DIGITAL OUT” to “REMOTE”. 
f  These faders allow control over the output level of each monitor source when in 
Remote Routing mode. This level attenuation occurs in the digital domain, so it is 
recommended to leave these faders in their default, maximum position in situations 
where the highest fidelity is required. Holding down the SHIFT key on the keyboard 
while adjusting a fader, will allow adjustment of channel pairs. 
g   This display reveals the amount of attenuation, in dB, of a monitor source. 
h  This button enables the mute function for the associated monitor source. 
j  This display indicates the status of the digital inputs. If a valid digital signal is present 
the display will indicate “Locked”. If a valid digital signal is not present the display 
will indicate “Unlock”. 
k  This drop-down menu allows for selection of the clock source that drives the Aurora 
sample clock generator from the following options: 
INT  Clock derived from the on-board crystal oscillator. 
EXT  Clock signal from WORD CLOCK input. 
EXT/2  Clock signal from WORD CLOCK input running at half the desired 
sample rate. Typically used with dual-wire AES/EBU devices. 
AES A  Clock signal from the AES I/O Port A Digital Input. Clock is derived 
from the first valid AES/EBU channel. 
 Aurora 8  Clock signal from the AES inputs 1-4. 
AES B  Clock signal from the AES I/O Port B Digital Input. Clock is derived 
from the first valid AES/EBU channel. 
 Aurora 8  Clock signal from the AES inputs 5-8. 
LSLOT  Clock Signal from the computer’s USB adapter. Under normal 
circumstances, this is NOT a recommended clock source. 
Please note that when the LT-USB is connected to the computer and active, the SYNC 
SOURCE cannot be controlled through the Aurora Remote Control software. The 
SYNC SOURCE must be established from the front panel before connecting the USB 
cable. 
l  This drop-down menu normally allows for selection of the sample rate for the Aurora 
when set to “INTERNAL”, however when using an LT-USB, the SAMPLE RATE 
drop-down menu is only used to display the active sample rate. The desired rate 
should always be established from within the host audio software or the OS’s audio 
settings section (ie. Windows Sound Control Panel or OSX Audio Midi Setup). Even 
if the Aurora is slaving to an external clock master, the sample rate selected within 
the DAW and/or OS default should match the rate generated by the clock source. For 
more information, see Section 5.1, Clock Settings and Connections. 










