Danley DNA SC48, Руководство пользователя

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controlled by encoder “
B
” and ranges from 0.10 octaves to 5.2 oct
aves. Bandwidth can be shown
and adjusted as Q or Octaves (Oct). Gain
is controlled by encoder “C” and is
adjusted in 0.2dB
increments.
The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol being
appended to the Gain value. See
Overlays
.
Also see Bandwidth Units in Utilities.
Routing
Routing allows users to route any physical analog or digital signal channel to any DSP input. This is
effectively a matrix mixing system where all DSPs can be driven from any one input, or from pairs of
inputs “
1+2
”
,
“
3+4
”, “
1+3
”, “
1+4
”, “
2+3
” or “
2+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.
Output
AES3 outputs
In addition to the usual analog outputs, the SC48 also allows outputs to be sent digitally using AES3.
The same physical XLR sockets are used for both Analog 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. The calibration between analog and AES3
levels is 0dBFS (AES3) = +20dBu (Analog).
Gain and Polarity
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
”.
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.
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 8th 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.