Vortex Ef2280/Ef2241 Features And Functions - Polycom EF2201 Brochure & Specs

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The Vortex EF2280 is a 12 input/12 output, 8 channel acoustic echo and noise canceller with built-in automatic microphone mixers,
parametric EQ's, AGC's and matrix mixer. The Vortex EF2241 is an 8 input/8 output, 4 channel acoustic echo and noise canceller
with automatic mixing, parametric EQ's, AGC's, matrix mixer, telephone hybrid and power amp. These products' key features are:
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Multiple channels of mic/line acoustic echo cancellation (AEC), noise cancellation (NC), and automatic gain control (AGC).
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48 VDC phantom power on microphone inputs, software selectable.
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40 dB/second convergence rate on each AEC channel.
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270 msec tail time.
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20dB headroom on all channels.
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12 line level outputs on Vortex EF2280; 8 line level outputs on Vortex EF2241 (0dBu nominal level), user adjustable.
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Polycom patented noise cancellation algorithms remove steady-state noise signals on microphone inputs (and on telephone
line output in Vortex EF2241); user adjustable up to 15 dB of noise reduction.
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5-band parametric filters for input and output equalization on each of the inputs and outputs.
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Digitally controlled analog trim pots on A/D inputs for precise input level adjustment.
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24-bit codecs, 32-bit floating-point processing.
• 48kHz sample rate ⇒ 22 kHz bandwidth on all channels.
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RS-232 for interface to control systems and Conference Composer software.
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24 configurable logic input pins and 20 configurable logic output status pins.
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High speed, low-delay EF expansion bus links Vortex devices.
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32 user presets, 16 factory presets, 256 macros (each up to 256 commands).
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Scalable automatic microphone mixer – supports up to 64 microphones or can be arbitrarily split into 2 automixers per Vortex.
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Fully controllable 25x18 cross point main matrix with arbitrary gain on cross-points (1dB increments on level).
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Configurable cross point mix-minus interface from the expansion bus to the main matrix: select only the channels from the bus
that you want!
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Conference Composer software for easy configuration, project management, and project documentation.
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InstantDesigner setup wizard reduces configuration time from hours to minutes – its capabilities will amaze you!
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Front panel LCD for controlling and configuring the product without a computer.
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Internal signal generator for noise masking applications and calibration.
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