Outputs - Polycom Vortex EF2280 Reference Manual

O
UTPUTS

Outputs

Output Gain
Mute Output
NOM Attenuation
On/Off
Output Delay
Figure 22. EF2280
Outputs submenu
© Polycom, Inc.
cancellation. The default is 10 dB.
Noise Cancellation Level (Inputs 1-8).
lation. This ranges from 0 to 15 dB.
Phantom Power.
Use this parameter to turn phantom power On or Off for inputs
1-8.
Echo Canceller Reference.
ated with which zone. Choose between R
AEC Suppression.
Sets the amount of double talk suppression used in the AEC.
The values correspond to the following settings: 1 = No Suppression, 2 = Light Sup-
pression, 3 = Heavy Suppression, 4 = Half-Duplex.
The O menu contains G
UTPUT
menus, this is done on a per channel basis including the W, X, Y, and Z busses.
Output Gain.
Choose the gain applied to each output signal using this parameter.
The default setting is 0 dBu. Though the EF2280 allows for positive output gain,
you should always try to adjust input gains to a good level so that the output gain is 0
dB. If you find that you need a positive output gain from the EF2280, first check your
input gain to make sure you are getting a good level (around 0dB). Keep the output
gain at around 0 dBu. Then, for the best gain structure, use your amplifier to raise the
volume in your system.
Mute Output.
Use this to mute or unmute each Output.
NOM Active.
This allows you to select whether the NOM attenuator is active for
a particular output channel (Outputs 1-8, A-D). The NOM attenuator will attenuate
the output signal by 10*log
in that particular output channel. NOM is calculated based on the number of open
microphones for each signal that is in the output, including the W or X bus which
carry NOM information. This option is not valid on Outputs W, X, Y, Z, or the EF
Bus reference (you cannot apply NOM attenuation to these busses).
Output Delay.
This allows you to add delay to the output. The default value is 0.
The range of values is 0 to 340.0 ms in 0.1 ms increments.
31
Selects the amount of noise cancel-
This parameter decides which reference is associ-
1, R 2, or the external bus reference.
EF EF
, NOM A , and M
AIN CTIVE
(NOM) where NOM is the number of open microphones
10
V
ORTEX
LCD M S
ENU TRUCTURE
. As with the I
UTE NPUT
EF2280 Reference Manual