Polycom EF2241 - Manual (Page 34)

LCD M
ENU
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TRUCTURE
V ORTEX EF2241 Reference Manual 32 Technical Support: 800.932.2774
T HRESHOLD , M ANUAL T HRESHOLD , and G ATE P RIORITY .
Global Settings.
Decay Time. Decay time is the amount of time the microphone audio takes to
ramp down to the Off Attenuation level after Hold Time. Decay Time values
range from 0 to 5000 msec. The default value is 1000 msec.
Hold Time. This is the amount of time the microphone stays On after the energy
in the channel drops below the gating threshold. The default value is 500 msec.
The range is 1 to 5000 msec. Microphone channels gating On and Off too fre-
quently during short pauses in speech might be the result of setting the Hold
Time too low while too many microphones gating on at the same time may be the
result of Hold Time values that are too high.
Camera Gating Threshold. Specifies the hold time for camera gating informa-
tion.
Figure 22. Automixer parameters.
Ambient Level
A DAPTIVE T HRESHOLD
Channel OFF
Channel ON
Channel turns on when
signal level is above
Adaptive Threshold
Microphone
Audio
Time
Signal Level
H OLD
T IME
O FF A TTENUATION
D ECAY
T IME
Global Settings
Decay
Hold Time
Camera Gating
Threshold
Automixer