Polycom EF2241 - Manual (Page 23)

I
NTEGRATING THE
EF2241 I
NTO
Y
OUR
S
YSTEM
© Polycom, Inc. 21 V ORTEX EF2241 Reference Manual
(NOM) limit for each linked automixer. The maximum value for this command
is 64. This NOM limit is a “global” limit, meaning that this limit applies to all
linked automixers with the same Bus ID.
Off Attenuation. Sets the Off Attenuation (in dB) for the specified automixer.
Setting this value to 18 would result in the microphone signals being attenuated
by 18 dB when gated off. This value is set independently for each of the auto-
mixers.
Channel Settings.
Automixer (Inputs 1-4). This allows you to select which automatic microphone
mixer (1 or 2) a particular microphone channel is assigned to. A microphone
may only be assigned to automatic mixer 1, automatic mixer 2, or neither (but not
both).
Threshold Type. Sets adaptive or manual automatic gating thresholds per input.
The default is adaptive.
Gating Mode. Sets the automixer gating control mode for specified input chan-
nel. The possible modes are Normal Gating, Microphone Forced On, or Micro-
phone Forced Off.
Adpative Threshold. This is also referred to as the Adaptive Threshold. This
allows you to determine when to gate a microphone on based on an estimate of
the background noise level. The default value is to gate a channel on if it is more
than 10 dB louder than the background noise level. Values range from 0 to 100
dB. To set the Adaptive Threshold, scroll through the Adaptive Threshold range
and select the desired Adaptive Threshold by pressing E
NTER .
Manual Threshold. Sets the automixer gating threshold for the specified input
channel. This value is only used if the input set to Manual Gating via the
T
HRESHOLD T YPE option.
Gate Priority. The priority of each microphone can be assigned a value ranging
from 1 to 4. Priority 1 microphones have priority over priority 4 microphones for
gating. The default is to have all microphones set to priority 1. If Chairman
Mode is enabled, all microphones including ones with priority of 1 will be gated
off when the Chairman mic gates on.
A
UTOMIXER
S
ETTINGS FOR
M
ULTIPLE
V
ORTEX
D
EVICES
When using more than one Vortex device in your room system, you have several pos-
sibilities for how you configure the automixer. Each device can operate as one of the
following:
• One automixer, independent of other devices linked to it
• Two automixers, independent of other devices linked to it
• One large automixer, sharing automixer functions with other devices linked to it
• Two large automixers, sharing automixer functions with other devices linked to it
Figure 14. Vortex Automixer Settings in Conference Composer Software