Bosch NBC-455, Инструкция по установке и эксплуатации

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90 en | Advanced Mode Dinion IP Camera
AR18-10-B006 | v1.1 | 2010.06 Installation and Operation Manual Bosch Security Systems
9.8.6 Audio Alarm
Create alarms based on audio signals. Configure signal
strengths and frequency ranges so that false alarms, for
example, machine noise or background noise, are avoided.
Set up normal audio transmission before configuring the audio
alarm.
Audio alarm
Select On for the device to generate audio alarms.
Name
The name makes it easier to identify the alarm in extensive
video monitoring systems, for example with the VIDOS and
Bosch Video Management System programs. Enter a unique and
clear name here.
Signal Ranges
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.
Threshold
Set up the threshold on the basis of the signal visible in the
graphic Set the threshold using the slide control or,
alternatively, move the white line directly in the graphic using
the mouse.
Sensitivity
Use this setting to adapt the sensitivity to the sound
environment and effectively suppress individual signal peaks. A
high value represents a high level of sensitivity.