Graphics Display Indication
Element
Description
Switches between frequency (magnitude) and phase response (phase) indication
Switch for selecting dB-axis scaling of 25 dB (± 12.5 dB) or 50 dB (± 25 dB)
Channel Selection
Element
Description
Switch for selecting input A or input B 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 Dx46 Graphic EQ filter bank within the
same project.
Filter Parameters
Element
Default
Range
Description
SYMMETRICA
L Q
SYMMETRICA
L Q,
PROPORTIO
NAL Q,
CONSTANT Q
Switching the graphic equalizer’s type between SYMMETRICAL
Q, PROPORTIONAL Q and CONSTANT Q.
SYMMETRICAL Q: The filters have an identical Q at all
accentuation settings. The lowering frequency responses are
symmetrical to the accentuation frequency responses.
PROPORTIONAL Q: A Filter’s Q increases as soon as
accentuation or lowering of the filter increases, with the effect
that the equalizer becomes ”sharper” with increased EQ setting.
The quality defined by Q corresponds to the quality at full
accentuation or lowering.
CONSTANT Q: The filter has the same Q at all accentuation or
lowering settings. The resulting accentuation or lowering
frequency response is not symmetrical.
4.3
3.0 to 10.0
Q sets the quality of all EQ bands. A high Q value results in a
narrowband filter. A low Q value results in a wideband filter.
The fixed frequencies of EQ bands
Sets level amplification (accentuation) or reduction (lowering)
of a band. A band’s fader is indicated in red when the band has
been deactivated by marking the checkbox OFF. Pres- sing the
spacebar resets the currently selected fader to 0 dB.
Deactivating every single EQ-Band is possible by setting this
checkbox. Deactivating a band does not change the band’s
previously made settings.
Press the EQ FLAT button to reset the gain of all filters to 0 dB.
IRIS-Net
DIGITAL SOUND PROCESSOR | en 668
Bosch Security Systems B.V.
User Manual
2017.05 | 3.20 | F.01U.119.956
