18
Presets
There are a number of DSP effects that are used to enhance the quality of the audio
signal being played on the VoIP speaker device (though not all of these effects are visible
and available for customization). Due to design differences between the VoIP speaker
models (e.g., microphone placement), these DSP settings must be customized for each
model.
Bogen has created predefined sets of model-specific DSP configurations to customize the
signal for each device. These configurations are available via
Presets
.
Note:
It is important that the preset corresponding to the speaker model be specified.
Selecting
Presets
from the
Menu
icon on the DSP page displays the Presets page.
Table 8. Intercom Tuning Settings
Switching Sensitivity
Specifies the minimum level of the received signal at which
the microphone signal will be muted and the output (i.e.,
speaker) channel will be enabled.
The range is -90 to -20 dB.
Talkback Threshold
Specifies the minimum talkback (i.e., microphone) signal at
which talkback will be enabled. The lower the level, the
more sensitive the microphone is to activating.
The range is -144 to +24 dB.
Talkback Decay
Specifies the rate (in dB/second) at which the noise gate
that enables the talkback (i.e., microphone) signal will close
once opened. A larger value means the gate will closer
faster, thus disabling the microphone signal sooner.
Tip:
If the microphone audio sounds choppy, set this to a smaller
value.
The range is 0 to +1000 dB/sec.
