Global Settings | Polycom EF2241 guide

LCD MENU STRUCTURE

THRESHOLD, MANUAL THRESHOLD, and GATE PRIORITY.

Signal Level

Channel turns on when
signal level is above
signal level is above
Adaptive Threshold
					DECAY
						TIME
Channel ON
Channel ON

ADAPTIVE THRESHOLD		Microphone		HOLD
ADAPTIVE THRESHOLD		Audio		TIME
Channel OFF		Audio		TIME
Channel OFF
Ambient Level

OFF ATTENUATION

Time

Automixer

Global Settings

Decay

Hold Time

Camera Gating

Threshold

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.

VORTEX EF2241 Reference Manual

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Polycom EF2241 manual Global Settings

Contents

Vortex EF2241 Reference Manual Page Introduction Welcome How to Use This Manual Introduction Product Registration Product FeaturesProduct Inputs Outputs Remote Control What’s Included PRE-INSTALLATIONTools Needed for Installation What’s Not Included EF2241 Front and Rear Panels PRE-INSTALLATION Mounting the EF2241 InstallationConnecting the EF2241 to Other Equipment North American Requirement Typical EF2241 Connections Codec Connecting Multiple Vortex Devices Device IDS on the EF BUS Factory Default Settings Preset Terminating the EF2241 Off Pick a Standard Signal Level Presets Multiple Vortex DevicesCheck Surrounding Equipment Configure Program Audio Sources Integrating the EF2241 Into Your System Input SettingsCalibration Set Levels on Line Input Channels Echo Canceller Reference for Multiple Vortex Devices SET UP the Phone InterfaceBuild Your Echo Canceller Reference Customize Setting for Your Particular Application Setting up Bus Reference Configure the Automatic Microphone Mixer Automixer Parameters Global Settings Automixer Settings for Multiple Vortex Devices Channel Settings Default Settings Configure the Matrix MixerBuilding Your System with Multiple Vortex Devices Configure the submatrix Assign Inputs Assign Outputs EF BUS Other EF2241 Features PresetsConfigure Your Echo Canceller Reference LCD Menu Structure LCD Menu Tree LCD Menu Structure System Menu System Phone Control Phone Control Inputs Inputs 1-4, T, A-D Outputs Automixer Menu Global Settings Mixer Settings Matrix Menu Matrix Parametric EQ Menu Input/Output EQ Channel Band Presets Macros No microphones are gating Some microphones are not gating TroubleshootingAutomatic Microphone Mixer Too many microphones are gating Residual Echo Echo Canceller ReferenceMatrix Mixer Room Audio Sounds Choppy Finding the Source of Echo Room Gain Excessive Room Gain Room Gain In-Conference Quick Check Excessive Microphone Amplification Insufficient Nonlinearity Contacting Technical Support Email vortex@polycom.com Technical Specifications USA and Canada ComplianceUS Telco requirements Automatic Dialing Telco Connector Canadian Telco Requirements Australia Rest of World This page was intentionally left blank CE Mark R& TTE Directive Vortex EF2241 Reference Manual Technical Support Conference System Design Noise and Reverberation Consider Room Gain EF2241 Block Diagram EN Echo Canceller, Noise Canceller Connector Pinouts EF Bus Input/Output Remote Control Port Making AN EF BUS Terminator Connecting Unbalanced RCA to Balanced Mini PhoenixInstructions Additional Notes Warranty Information RMA# Must be on package What this warranty does not cover State Law Rights Acoustic Echo Echo CancellerDefinition of Terms Crosspoint Mix Minus Bus NOM Attenuation NOM Bus Presets Room Gain NOM Definition of Terms Index NOM Index Page 1725-80098-001-C