Shall provide a dedicated output of the far-end audio, to be used by an external AEC-equipped DSP as a reference signal for acoustic echo cancellation - AEC processing.Shall provide soft limit settings to define upper and lower limits on adjusting near-end and far-end audio levels.Program audio shall automatically ramp up to reach the original volume level when audio is no longer detected on the microphone or USB audio input.Shall provide adjustable, automatic ducking of program audio when a signal is detected on the microphone or far-end USB audio input.Shall provide digital audio processing tools including gain, mixing, parametric EQ, filtering, dynamics, and ducking.Shall provide audio signal management and optimization for analog audio, HDMI de-embedded audio, and USB bidirectional audio.Shall deliver USB streaming video output with MJPEG encoding.Shall support the ability to display a user-supplied image file whenever no signal is present at the HDMI input.Shall provide internal test patterns for calibration and setup.User presets may be saved and recalled electronically via RS-232, USB, or Ethernet.User presets may be saved and recalled using front panel controls.The user may selectively enable or disable automatic memories.Automatically recall settings when the same video rate is encountered.Save video settings and picture adjustments without user intervention.Automatic memories for each video input.Shall provide storage and recall of video parameters and picture settings.Shall provide image adjustments for brightness, contrast, H/V positioning, and sizing.FOLLOW mode – video image on the host computer’s screen or window shall always preserve the aspect ratio of the input signals without distortion.FILL mode – video image shall always fill the host computer’s screen or window without letterbox or pillarbox.Shall provide deinterlacing for 480i/576i/1080i signals.Based on CPU usage and bandwidth conditions between near-end and far-end locations.Shall provide scaled USB video output from 320x180 to 1080p/15, determined by the soft codec.Shall provide processing and conversion of video from HDMI to USB encoded video for the host computer.Shall provide a THD+N measurement of less than 0.03% measured at 20 Hz to 20 kHz, at maximum level.Shall provide a signal-to-noise ratio greater than 105 dB measured from 20 Hz to 20 kHz, at maximum balanced output, unweighted.Audio Device Requirements - Input to Output.Shall include a selectable pink noise generator, available at each audio output, for setup and calibration.Shall provide a delay in the audio output to match the corresponding video processing delay.Shall provide digital to analog conversion at 48 kHz sampling rate with 24-bit resolution.Shall provide two channels of USB audio to the host computer.Shall provide one (1) five-pole captive screw connector for AEC reference and auxiliary audio.USB video and audio content shall be compatible with popular software communications platforms.Utilizes industry standard UVC - USB Video Class and UAC - USB Audio Class drivers.USB 2.0 device connection shall appear as generic Webcam to host computer.Shall provide one (1) USB Type B connector for digital video and bidirectional 4x2 audio signals.Shall provide analog to digital audio conversion at 48 kHz sampling rate with 24-bit resolution.Shall support four channels of USB audio from the host computer.Shall support HDMI audio de-embedding for two-channel PCM audio.Shall provide selectable +48 volt phantom power for a condenser microphone.Shall provide one (1) five-pole captive screw connector for balanced/unbalanced line level stereo audio.Shall provide one (1) three-pole captive screw connector for mic/line audio.Shall support HDMI computer and video resolutions up to 1080p/x1200.Shall provide one (1) HDMI Type A connector for buffered loop-through.Shall provide one (1) HDMI Type A connector for digital video signals with embedded audio.HDMI and audio to USB scaling bridge, with integrated DSP, video processing, a variety of analog audio I/O ports, and signal management for analog audio, HDMI embedded audio, and USB bidirectional audio.Provide an HDMI and audio to USB interface, for integration of an AV source or system with a computer in a soft codec videoconferencing application.
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