Signal Delay; High Pass Filter And Low Pass Filter; Equalization - Monacor DRM-882LAN Instruction Manual

6.5.2

Signal delay

Each output signal may be delayed by up to
380 .998 ms . Thus, different sound delay times
due to different speaker distances may be
balanced .
In the view of an output (e . g . "Out7",
fig . 27), under "Delay", set the delay for the
output signal . The unit (meter or milliseconds)
can be changed in the view "Overview"
( ☞ chapter 6 .3 .1) .
To change the delay value, click the ar-
rows next to the input field . Use the arrows
above "Adj" for a coarse adjustment and the
arrows above "Fine" for a fine adjustment .
Alternatively, enter the value in the field . The
value entered will be rounded to the nearest
value possible .
Use the button "Bypass" beneath the
value field to temporarily deactivate the delay;
the button will appear in red . To activate the
delay, click the button again .
6.5.3

High pass filter and low pass filter

Each output is provided with a high pass filter
and a low pass filter that, in combination, may
assume the function of a crossover network
(for frequency-dependent splitting of an input
signal to two or more output channels) .
In the view of an output (e . g . "Out7",
fig . 27), under "High Pass Filter" and "Low
Pass Filter", set the high pass filter and low
pass filter desired .
1) Under "High Pass Filter", in the field
"Slope", select one of the eight filter
characteristics or "Bypass" to bypass the
high pass filter . The following filter char-
acteristics are available:
Buttw −6 dB
Butterworth filter of first order with a slope
of 6 dB / octave
Buttw −12 dB
Butterworth filter of second order with a
slope of 12 dB / octave
LRiley −12 dB
Linkwitz-Riley filter of second order with
a slope of 12 dB / octave
Bessel −12 dB
Bessel filter of second order with a slope
of 12 dB / octave
Buttw −18 dB
Butterworth filter of third order with a
slope of 18 dB / octave
Buttw −24 dB
Butterworth filter of fourth order with a
slope of 24 dB / octave
LRiley −24 dB
Linkwitz-Riley filter of fourth order with a
slope of 24 dB / octave
Bessel −24 dB
Bessel filter of fourth order with a slope
of 24 dB / octave
2) Under "Low Pass Filter", in the field
"Slope", select one of the eight filter
Fig. 26 View "Routing"
Fig. 27 View of output channel "Out7"
characteristics or "Bypass" to bypass the
low pass filter .
3) In the fields "Freq [Hz]", enter the cut-off
frequency desired .
The settings are also reflected in the fre-
quency diagram ( ☞ chapter 6 .5 .4 .1) .
6.5.4

Equalization

For the equalization of the individual out-
puts, five independent filters are provided .
Set these filters in the view of an output (e . g .
"Out7", fig . 27) under "EQ" . The procedure
for setting the equalization filters is identical
to that for setting the input channel filters
( ☞ chapter 6 .4 .7) .
6.5.4.1 Frequency response
The diagram in the upper section of the win-
dow indicates the frequency response of the
output channel, depending on the equaliza-
tion and gain ( ☞ chapter 6 .5 .6) that have
been set .
On the right-hand side of the diagram,
the type of representation can be selected:
magnitude frequency response ("Mag")
or phase frequency response ("Phase") . If
"Mag" is selected, the field beneath "Step
dB" may be used to select the scaling and the
field beneath "Offset dB" to select the ver-
tical shift of the diagram . To change a value,
click the up or down arrow buttons next to
the field .
For graphical adjustment of the filters,
the reference points ( , ,
be shown [identical to the procedure for the
equalization filters of the inputs (
ter 6 .4 .7 .1)] .
, , ) may
☞ chap-
33