Polycom EF2241 manual Outputs, Automixer Menu

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LCD MENU STRUCTURE

Phone Input Gain. This parameter adjusts the gain level of the Phone input.

Phone AGC. Enables or disables automatic gain control on the Phone.

OUTPUTS

Outputs

Output Gain

Mute Output

NOM Attenuation

On/Off

Output Delay Enable

Output Delay

Dynamics Processing

Figure 20. EF2241

Outputs submenu

The OUTPUT menu contains GAIN, NOM ACTIVE, and MUTE. As with the INPUT menus, this is done on a per channel basis.

Output Gain. Choose the gain applied to each output signal using this parameter. The default setting is 0 dBu. Though the EF2241 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 EF2241, 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

aparticular output channel (Outputs 1-4, A-D). The NOM attenuator will attenuate the output signal by 10*log10(NOM) where NOM is the number of open microphones

in that particular output channel. NOM is calculated based on the number of open microphones for each signal that is in the output.

Output Delay Enable. This allows you to enable delay to each of the outputs.

Output Delay. Sets the amount of delay on the output. The default value is 0 ms. The range is 0 to 340.0 ms in 0.1 ms increments.

Dynamics Processing. Enables or disables compression on Output T.

AUTOMIXER MENU

Automixer

Global Settings

Mixer Settings

Channel Settings

Figure 21. EF2241 Automixer submenu

These parameters configure how the Vortex device automatic microphone mixer operates. Parameters include the following: DECAY TIME, HOLD TIME, CAMERA

GATING THRESHOLD, BUS ID, CHAIRMAN MODE, CHAIRMAN MIC, LAST MIC ON MODE, LAST MIC NUMBER, LOCAL MAX NOM, GLOBAL MAX NOM, OFF

ATTENUATION, AUTOMIXER, THRESHOLD TYPE, GATING MODE, ADAPTIVE

© Polycom, Inc.

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VORTEX EF2241 Reference Manual

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Contents Vortex EF2241 Reference Manual Page Introduction Introduction Welcome How to Use This ManualProduct Features Product RegistrationProduct Inputs Outputs Remote Control Tools Needed for Installation PRE-INSTALLATIONWhat’s Included What’s Not IncludedEF2241 Front and Rear Panels PRE-INSTALLATION Connecting the EF2241 to Other Equipment InstallationMounting the EF2241 North American RequirementCodec Typical EF2241 ConnectionsDevice IDS on the EF BUS Connecting Multiple Vortex DevicesTerminating the EF2241 Factory Default Settings PresetOff Presets Multiple Vortex Devices Pick a Standard Signal LevelCheck Surrounding Equipment Configure Program Audio Sources Input Settings Integrating the EF2241 Into Your SystemCalibration Set Levels on Line Input Channels Build Your Echo Canceller Reference SET UP the Phone InterfaceEcho Canceller Reference for Multiple Vortex Devices Customize Setting for Your Particular ApplicationBus Reference Setting upAutomixer Parameters Configure the Automatic Microphone MixerGlobal Settings Channel Settings Automixer Settings for Multiple Vortex DevicesConfigure the Matrix Mixer Default SettingsBuilding Your System with Multiple Vortex Devices Assign Inputs Assign Outputs Configure the submatrixEF BUS Presets Other EF2241 FeaturesConfigure Your Echo Canceller Reference LCD Menu Tree LCD Menu StructureLCD Menu Structure System System MenuPhone Control Phone ControlInputs 1-4, T, A-D InputsAutomixer Menu OutputsGlobal Settings Mixer Settings Matrix Matrix MenuInput/Output EQ Channel Band Parametric EQ MenuMacros PresetsAutomatic Microphone Mixer TroubleshootingNo microphones are gating Some microphones are not gating Too many microphones are gatingMatrix Mixer Echo Canceller ReferenceResidual Echo Room Audio Sounds ChoppyFinding the Source of Echo Room Gain Room Gain Excessive Room GainIn-Conference Quick Check Excessive Microphone Amplification Nonlinearity InsufficientEmail vortex@polycom.com Contacting Technical SupportTechnical Specifications Compliance USA and CanadaUS Telco requirements Canadian Telco Requirements Automatic Dialing Telco ConnectorRest of World AustraliaThis page was intentionally left blank CE Mark R& TTE Directive Vortex EF2241 Reference Manual Technical Support Noise and Reverberation Consider Room Gain Conference System DesignEN Echo Canceller, Noise Canceller EF2241 Block DiagramEF Bus Connector PinoutsInput/Output Remote Control Port Connecting Unbalanced RCA to Balanced Mini Phoenix Making AN EF BUS TerminatorInstructions Additional Notes RMA# Must be on package Warranty InformationState Law Rights What this warranty does not coverDefinition of Terms Echo CancellerAcoustic Echo Crosspoint Mix Minus BusNOM NOM Attenuation NOM Bus Presets Room GainDefinition of Terms Index NOM Index Page 1725-80098-001-C