2N Helios IP Configuration Manual page 44

values are relative against the set master volume.
Switch activation tone volume – set the volume of the switch activation tone.
The volume values are relative against the set master volume.
User sounds volume - set the volume of the user sounds to be played. The
volume values are relative against the set master volume.
Default audio input
audio module input) to be used for phone calls and audio streaming.
Microphone input gain
Line input gain
value.
Acoustic feedback filter - set automatic suppression of acoustic feedback
(typically whistling) between the intercom speaker and phone handset if located
in close proximity to the intercom. This mode is disabled by default.
Switch on automatic detection of noise or microphone noise level threshold
exceeding. Process the threshold exceeding alarm using
d assign it to other user actions.
®
2N TELEKOMUNIKACE a.s., www.2n.cz
– set the default audio input (microphone, line input or
- set the microphone input gain.
- set the line input gain independently of the microphone gain
Tip
®
Only at 2N Helios IP Audio Kit
possible to configure microphone gain.
The microphone/line input gain setting is connected with the input
signal level and type of external microphone installation. The wide
gain range (0 to 39dB for a microphone input and -6dB to 24dB for
a line input) should be sufficient for most installations. Set a value
to ensure good audibility and eliminate excessive acoustic feedback
at high loudspeaker volumes with subsequent signal saturation on
the microphone/line input and thus acoustic echo cancellation (AEC)
deterioration.
®
and 2N Helios IP Video Kit
Event.NoiseDetected
is
an
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