INTEGRATING THE EF2241 INTO YOUR SYSTEM
Local Max NOM, Global Max NOM, Off Attenuation, Threshold Type, Gating Mode, Adaptive Threshold, Manual Threshold, and Gate Priority.
Signal Level
Channel turns on when |
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signal level is above |
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Adaptive Threshold |
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| DECAY | ||
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| TIME | |
Channel ON |
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ADAPTIVE THRESHOLD |
| Microphone | HOLD | ||||
| Audio | TIME | |||||
Channel OFF |
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Ambient Level |
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OFF ATTENUATION
Time
Figure 13. Off Attenuation, Hold Time, Adaptive Threshold, and Decay Time.
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.
Mixer Settings.
Bus Mixer. This command is used to assign one of the two internal automixers to one of the EF Bus automixer groups. For example, consider three Vortex devices each of which has 2 microphones assigned to Automixer 1 and 2 micro- phones assigned to Automixer 2. Now, if each of these devices sets their Auto- mixer 1 to use Bus Mixer 5 for example, then the three automixers (one from each device) will work as a single automixer containing 6 (3 x 2) microphones. Setting Bus Mixer to 0 means that the automixer is not grouped on the EF Bus and the automixers operate independently.
Chairman Mode. Enables or disables Chairman Mode for the specified auto- mixer.
Chairman Mic. Sets the Chairman Microphone for the specified automixer. Last Mic On Mode. Sets “Last Mic On” mode for the specified automixer. Last Mic Number. Sets the microphone number that will remain on when “Last Mic On” mode is set to manual. Setting this value to 0 will cause the automixer to leave the last open microphone on. The last microphone number is specified for each automixer, but is only used in manual “Last Mic On” mode.
Local Max NOM. Sets the maximum number of open microphones (NOM) limit for the specified automixer. This NOM limit is a “local” limit, meaning that this limit applies only to the specific Vortex device that it is set on.
Global Max NOM. Sets the global maximum number of open microphones
VORTEX EF2241 Reference Manual | 20 | Technical Support: 800.932.2774 |