Audio Alarm - Bosch MIC inteox 7100i User Manual

MIC inteox 7100i
Reference check
Save a reference image that can be continuously compared with the current video image. If
the current video image in the marked areas differs from the reference image, an alarm is
triggered. This detects tampering that would otherwise not be detected, for example, if the
camera is turned.
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Trigger delay [s]
Set delayed alarm triggering here. The alarm is only triggered after a set time interval in
seconds has elapsed and then only if the triggering condition still exists. If the original
condition has been restored before this time interval elapses, the alarm is not triggered. This
avoids false alarms triggered by short-term changes, for example, cleaning activities in the
direct field of vision of the camera.
Global change
You can set how large the global change in the video image must be for an alarm to be
triggered. This setting is independent of the sensor fields selected under Select Area. Set a
high value if fewer sensor fields need to change to trigger an alarm. With a low value, it is
necessary for changes to occur simultaneously in a large number of sensor fields to trigger an
alarm.
This option allows you to detect, independently of motion alarms, manipulation of the
orientation or location of a camera resulting from turning the camera mount bracket, for
instance.
Global change
Activate this function if the global change, as set with the Global change slide control, should
trigger an alarm.
8.3

Audio Alarm

The camera 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.
Notice!
i
First set up normal audio transmission before you configure the audio alarm here (see Audio).
Audio alarm
Select On if you want the device to generate audio alarms.
Do not use any special characters, for example &, in the name. Special characters are not
supported by the system's internal management.
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). Check or uncheck the boxes below the
graphic to include or exclude individual ranges.
Bosch Security Systems
Click Reference to save the currently visible video image as a reference.
Click Add mask and select the areas in the reference image that are to be ignored. Click
Set to apply.
Check the box Reference check to activate the on-going check. The stored reference
image is displayed in black and white below the current video image.
Select the Disappearing edges or Appearing edges option to specify the reference check
once again.
User Manual
Alarm | en 51
2022-09 | 1.18 |