Telex RTS OMS OMNEO Main Station Advanced Digital Partyline Intercom Base (5-Pin Female) - Manual (Page 109)

OMS OMNEO Main Station Configuration | Audio menu | en 109
Bosch Security Systems, LLC Technical Manual 01-2021 | 03 | F.01U.380.820
Figure 23.3: Configuration | Audio | Panel Mic/ Speaker Screen
Microphone Section
The Microphone section configures the panel microphone.
Mode Field
Use the Mode field to select the state of the panel mic.
Available options are:
Disabled
Enabled
Switched (default) When set to Switched, the Mic Sel key controls the state of the panel mic.
AEC Enable Check Box
The AEC Enable check box determines whether AEC (Acoustic Echo Cancellation) is active on
the panel mic.
Use AEC to prevent echo and feedback from occurring between the microphone and the
speaker. By default, the AEC is enabled.
AGC Attack Field
Use the AGC Attack field to set the speed at which the microphone gets to the activation
threshold, the point where the circuit determines if sound is present. The smaller the attack
time, the faster the mic turns on.
Available options are:
–
0.5 ms
– 1.0 ms (default)
– 2.0 ms
AGC Decay Field
Use the AGC Decay field to set the speed at which the gain transitions to silence during
release.
Available options are:
–
500 ms
– 750 ms (default)
– 1000 ms
Noise Gate Field
Use the Noise Gate field to enable or disable an audio level at which the mic turns on. When
enabled, the microphone audio only turns on when the audio level exceeds the configured
threshold. When disabled, the microphone is always on.