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CONTROLS
Input Section
Word Clock INT/EXT
The UPM-1 can be either internally or externally clocked. The on-board sample rate converters
will synchronise the incoming AES-3 streams to either the internal clock or an external word clock
when available. The external wordclock input accepts a 48kHz clock signal only.
Without a valid external wordclock present the unit will be clocked internally, in this case the
amber INT LED will be illuminated. When a valid 48kHz external clock is present this will be
automatically detected and the unit will switch over to the external clock, illuminating the amber
EXT LED.
Locked Status LED
The Locked LED shows the status of the two digital AES-3 inputs. When both inputs are locked
and functioning correctly the green LED will be illuminated, when one of the two inputs is
unlocked the LED will flash on and off, when neither input is locked the LED will not be
illuminated. The digital inputs will accept and lock to any incoming sample rate in the range of
32kHz to 192kHz.
Gain
This control adjusts the input level of the incoming stereo signal and is variable from full
attenuation to a gain of +10dB. Normally this control should be used at or close to its 0dB
position. Two 5-segment bargraph level meters are provided to display the levels of the stereo
input signals.
L/R Balance
The L/R Balance trim allows the user to alter the Left/Right balance of the incoming stereo signal.
Since the 5.1 output of the UPM-1 is entirely based on the stereo input signal it is important to
make sure that the stereo signal image is correctly balanced before upmixing it to 5.1.
L/R Swap
The L/R Swap button allows the user to swap the Left and Right input signals before upmixing to
5.1. An amber status LED indicates when this mode is selected.
Controls
SoundField UPM-1
User Guide
