D
OUTPUT
Routing allows users to route any physical or digital signal to any DSP input. This is a
matrix mixing system where all DSPs can be driven from any one input or pairs of inputs
1+2
or
3+4
. Summed inputs have 6dB of attenuation so that a sum of largely similar programme
material remains at the correct calibrated level. When a sum input is selected, the input DSP
meters show the higher of the two inputs so that indication of the onset of clipping of either
input is indicated.
D
Output
D.1
AES3 outputs
1 ROUT
Out
n
ame
Source
DSP A
XLR
Analog
In addition to the usual analogue outputs, the DMS48 also allows outputs to be sent
digitally using AES3. The same physical XLR sockets are used for both Analogue and AES3
outputs; the function of these being determined by the XLR parameters in the Output Route
menu. The Odd numbered output sockets are used to output pairs of AES3 channels. When
an output socket is selected for AES3 operation, the AES3 indicator under the output bar
graphs will illuminate. The output sample rate for AES3 will always be 96kHz.
D.2
Gain and Polarity
A
GAIN
Preset
1
Gain
0.0dB
Pol
Norm
Mute
Norm
The gain page of the output channel allows users to increase or decrease the relative signal
gain for the selected output. Using encoder
A
will change the value in 0.2dB steps from -40dB
to +20dB. This page will also allow users to change the polarity of the selected output from
normal to reverse, using encoder
B
.
D.3
Delay
The delay page controls the amount of delay associated with the output channel selected and
is adjustable from 0 to 998ms. The delay parameter is adjustable in fine steps at low values;
the adjustment becomes progressively coarser as the value increases.
D.4
High and Low pass Filters
High pass crossover filtering is provided for the output signal. Filter type is selectable from 1
st
order, Butterworth, Bessel, Linkwitz-Riley, Hardman and LIR Linear Phase using encoder B.
Filter slopes of up to 8
th
order or 48dB / octave are provided. Not all filter types are available
in all slopes. For example 18dB / octave Linkwitz-Riley filters cannot be selected because they
do not exist. The Hardman type filter is always described by its order as the filter becomes
progressively steeper rather than following a linear slope so a dB/octave description is not
accurate.
User Manual DMS48
V1.1
20
Summary of Contents for DMS48
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