Bosch IRIS-Net User Manual page 425

IRIS-Net
Selecting the Way
Element
Filter Parameter
Element Default Range
PEQ
6dB/Oc
t
0.7
0 dB
Bosch Security Systems B.V.
Description
Switch for selecting the way of the Loudspeaker Controller block for filter processing. The
actual amount of switches depends on the type of Loudspeaker Controller block.
Description
Switch for selecting between bandwidth BW or quality
Q when setting filters.
BYPASS ALL deactivates all filters.
Name of the corresponding filter band.
PEQ. TYPE defines the desired filter type.
Loshelv. PEQ is a parametric Peak-Dip-Filter with programmable
Hishelv, frequency, quality and gain.
Hipass, Loshelv / Hishelv creates a low shelving respectively
Lopass, high shelving equalizer with the following editable
Allpass 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 defines the steepness or the filters order for
12dB/Oct Low-Shelving or High-Shelving filters as well as for Lo-
Pass or Hi-Pass filters. Setting different slopes in the
transmission range is possible. High- Pass filter and Q
parameter together provide the possibility to program
B6 alignments, which describes the raising in the cut-off
frequency range.
20 Hz...20 FREQ (frequency) sets the center frequency for
kHz parametric EQs or, in case of Shelving and High- Pass /
Lo-Pass filters, it sets the cut-off frequency.
0.4...40.0 Q sets the quality respectively the bandwidth of the
(PEQ), parametric EQ. A high Q-value results in a narrowband
0.4...2.0 filter. A low Q-value results in a wideband filter. Q also
(Hi-/ sets the quality and therefore the curve progression of
Lopass), Lo-Pass-, High-Pass- and All-Pass filters with 12dB/Oct
0.4...2.0 slope.
(Allpass)
-18...+12 dB GAIN sets amplification (rising) or attenuation
(lowering) of parametric EQs or Low-Shelving- and High-
Shelving filters.
User Manual
DIGITAL MATRIX | en 425
2017.05 | 3.20 | F.01U.119.956