Filter Parameters
Element Default Range Description
Name of the corresponding filter band.
A click with the right mouse button on this field opens
the ”Copy & Paste” menu, which allows convenient
copying all EQ-parameters of the according filter to any
other EQ within the same project.
PEQ PEQ.
Loshelv.
Hishelv,
Hipass,
Lopass
TYPE defines the filter type.
PEQ is a parametric Peak-Dip-Filter with programmable
frequency, Q and gain.
Loshelv / Hishelv creates a low shelving respectively high
shelving equalizer with the following editable parameters:
frequency, slope and gain.
Lopass / Hipass creates low pass respectively high pass
filters with adjustable frequency and slope.
6dB/Oct 6dB/Oct,
12dB/
Oct
SLOPE sets the steepness or filter-order of low or high
shelving equalizers and low or high pass filters. Setting
different slopes within the transmission range is possible.
31 / 63 /
125 /
250 /
500 / 1k /
2k / 4k /
8k / 16k
Hz
20 Hz to
20 kHz
FREQ (frequency) sets the center frequency of a
parametric EQ or the cut-off frequency of shelving and Hi /
Lo pass filters.
0.7 0.4 to
40.0
(PEQ),
0.4 to 2.0
(Hi-/
Lopass)
Q defines the quality or bandwidth of a parametric EQ. A
high Q-value results in a narrowband filter, while a small Q-
value results in a broadband filter. The Q-value also sets
the quality and thus the response of Hi, Lo and All pass
filters with slopes of 12dB/oct..
0 dB -18 to +12
dB
GAIN defines the amplification (increase) or attenuation
(reduction) of parametric EQs or low shelving and high
shelving equalizers.
The caption of this button indicates the current state of
the filter. Press the ACTIVE button to deactivate the filter
(Bypass), which allows for quick A / B-evaluation of the
actual effect that a filter has on the sound.
Press the EQ FLAT button to reset the gain of all filters to
0 dB.
IRIS-Net DIGITAL SOUND PROCESSOR | en 666
Bosch Security Systems B.V. User Manual 2017.05 | 3.20 | F.01U.119.956
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