Bosch PRAESENSA PRA-CSLD - Call Station

100 en | Configure the system PRAESENSA
2020-09 | V1.20 | PRAESENSA 1.20 Configuration manual Bosch Security Systems B.V.
5.8.2 Call station
On the Audio processing page of the call station, the audio processing parameters of the
selected call station input can be set.
– For the microphone of the call station, a parametric equalizer is available to set the audio
output signal. The correct setting depends on the environment to where the signal is
routed to, and possible needs to be adjusted:
– It is advised to adjust the microphone characteristics in the room where the call
station is located.
1. Below the Audio processing page, click Call station:
– A new screen appears listed the connected call station(s).
2. Select and click the Call station name to configure.
– A new screen appears listed the Call station input.
3. Select and click the + of the Call station input category row:
– The audio processing / parametric equalizer overview appears.
4. Select each of the following items, if required:
F: Frequency, G: Gain, Q: Quality factor
Item Filter Value Description
High‑pass
filter
Enter F
Select Q
Default: Frequency 50Hz, Quality factor 0.7
(selectable 0.2 ‑ 2.0).
Fixed: Gain -12dB/oct.
Shelving
filter
(for low
frequencies)
Enter F
Select G
Default: Frequency 500Hz , Gain 0dB
(selectable:-20dB- +12dB).
Full
parametric
sections (3)
Enter F
Select Q,
G
Default: Frequency 1000Hz, Quality factor 20.0
(selectable 0.4 ‑ 20.0), Gains 0dB
(selectable: -infinite - +12dB).
Shelving
filter
(for high
frequencies)
Enter F
Select G
Default: Frequency 2000Hz , Gain 0dB
(selectable: -infinite - +12dB).
Low‑pass
filter
Enter F
Select Q
Default: Frequency 10000Hz, Quality factor 0.7
(selectable 0.2 ‑ 2.0).
Fixed: Gain -12dB/oct.