Other Vari Parameters - Bosch LA3-VARI-B Installation Manual

VARI-directional array
6.4.3

Other VARI parameters

The Help files supplied with VariControl software are quite extensive, and installers are
referred to these for detailed information on other aspects of the configuration program. The
Help button in the Control Parameters window itself is context‑sensitive. For completeness,
however, a brief description of the facilities available on the other pages of the Control
Parameters window is given below, accessible by tab selection:
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Bosch Security Systems B.V.
Input: Comprises five tabs (at bottom), giving control over input selection and input
signal processing.
– Common parameters: Selection of active input, method of priority switching and
setting of switching parameters.
– Gain/delay [In-1]: Adjustment of input gain and delay (in milliseconds or metres),
phase inversion, priority setting and enabling of pilot tone detection for Input 1.
Input and output levels can be monitored by selecting Tools | Status properties (F5) |
Levels.
– EQ [In-1]: Each input has a 4-band equalisation available, with a choice of fully-
parametric hi-pass, low-pass, notch, bell or shelving filters in each band.
– Gain/delay [In-2]: As for Input 1.
– EQ [In-2]: As for Input 1.
Volume: Provides adjustment of overall unit volume. Controls for setting gain in the
analog domain both before (Analog pre‑gain) and after (Analog output gain) the DSP
section are included. Volume reduction under ducking control is also set here.
Delay: Allows an overall pre-delay to be added (is applied to both input channels).
EQ: In addition to the per-input EQ, an 8-band equalisation curve may be set to tailor the
overall frequency response of the loudspeaker.
AVC: This feature enables the VARI to automatically increase the amplifier gain (and
hence the volume) as the ambient noise in the venue increases. To achieve this, the VARI
is fitted with an ANS (Ambient Noise Sensing) microphone, and the embedded AVC
(Automatic Volume Control) algorithm is able to measure the ambient noise during gaps
in the programme material or between announcements.
Surveillance: This page permits configuration settings relating to the loudspeaker's
operation under various fault conditions to be made.
Other: Miscellaneous unit settings.
Installation manual
Configuring the VARI | en
2018.06 | V1.3 |
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