Polycom Vortex EF2241 Reference Manual page 34

Automixer
Global Settings
Decay
Hold Time
Camera Gating
Threshold
V EF2241 Reference Manual
ORTEX
T , M
HRESHOLD ANUAL
Signal Level
Channel turns on when
signal level is above
Adaptive Threshold
Channel ON
A T
DAPTIVE HRESHOLD
Channel OFF
Ambient Level
Figure 22. Automixer parameters.
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.
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HRESHOLD ATE RIORITY
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Microphone H
OLD
Audio
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Time