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180
en | Encoders / Decoders page
Scene too dark
Select the check box if tampering associated with covering the lens (for instance, by spraying
paint on the lens) should trigger an alarm. The average brightness of the scene provides a
basis for recognition.
Scene too noisy
Select the check box if tampering associated with EMC interference (noisy scene as the result
of a strong interference signal in the vicinity of the video lines) should trigger an alarm.
18.9
Audio Alarm page
Some encoders can create alarms on the basis of audio signals. You can configure signal
strengths and frequency ranges in such a way that false alarms, for example due to machine
noise or background noise, are avoided.
Note: First set up normal audio transmission before you configure the audio alarm.
See Audio page, page 187
Audio alarm
Select On if you want the device to generate audio alarms.
Name
Enter a unique and clear name. The name makes it easier to identify the alarm in extensive
video monitoring systems.
Caution!
Do not use any special characters, for example &, in the name.
Special characters are not supported by the internal recording management and may there-
fore result in the Bosch VMS Archive Player being unable to play back the recording.
Signal Ranges
You can exclude particular signal ranges in order to avoid false alarms. For this reason the
total signal is divided into 13 tonal ranges (mel scale). Select or clear the boxes below the
graphic to include or exclude individual ranges.
Threshold
Set up the threshold on the basis of the signal visible in the graphic You can set the threshold
using the slide control or, alternatively, you can move the white line directly in the graphic
using the mouse.
Sensitivity
You can use this setting to adapt the sensitivity to the sound environment. You can effectively
suppress individual signal peaks. A high value represents a high level of sensitivity.
18.10
Privacy Masks page
Privacy Masking is used to block out an area of a scene from being viewed and recorded. For
example, you might want to hide public places adjacent to your property. You can define
15 privacy masks in total.
Hide masks
To hide all masks from an image view, select the check box.
Privacy masks
Select the privacy mask number. The preview window displays a gray rectangle in the scene.
2013.03 | V1 | Configuration Client
Configuration Manual
Bosch Video Management System
Bosch Sicherheitssysteme GmbH
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