Bosch IRIS-Net User Manual page 566

IRIS-Net
Switch for including programmed delays in the frequency or phase response indication. The
delays mainly affect phase response indication. Indicating the sound system processor channels'
summed signal reveals very clearly the effect that the delays have on the frequency response, e.g.
as notch filter effect.
Switch for additionally indicating measured speaker transfer functions. For this function to be
effective you first have to load speaker data in the "Speaker" register sheet.
Channel Selection
Element Description
Switch for selecting output 1, 2, 3 or output 4 for filter editing.
A click with the right mouse button opens the "Copy & Paste" menu, which allows convenient copying all
EQs of the corresponding output to any other EQ-filter bank within the same project.
Filter Parameters
Element Default
PEQ
6dB/Oct
79 / 316 /
1261 /
5023Hz
0.7
Bosch Security Systems B.V.
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. TYPE defines the filter type.
Loshelv. His- – PEQ is a parametric Peak-Dip-Filter with programmable
helv, Hipass, frequency, Q and gain.
Lopass, – Loshelv / Hishelv creates a low shelving respectively high
Allpass 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.
– Allpass is a filter which only affects the phase but not the
frequency response of the transmission function.
6dB/Oct, SLOPE sets the steepness or filter-order of low or high shelving
12dB/ Oct equalizers and low or high pass filters. Setting different slopes within
the transmission range is possible. That, in conjunction with the Q-
parameter, offers the possibility for a hi-pass filter to be programmed
for B6-alignment, which describes a drastic rise in the cut-off
frequency range.
20 Hz...20 FREQ (frequency) sets the center frequency of a parametric EQ or
kHz the cut-off frequency of shelving and Hi / Lo pass filters.
0.4...40.0 Q defines the quality or bandwidth of a parametric EQ. A high Q-value
(PEQ), results in a narrowband filter,
0.4...2.0 (Hi-/ while a small Q-value results in a broadband filter. The Q-value also
sets the quality and thus the
User Manual
DIGITAL SOUND PROCESSOR | en
2017.05 | 3.20 | F.01U.119.956
566