CHAPTER 1: Introduction

Congratulations on purchasing the XAP™ 400 Audio Conferencing System. The XAP 400 combines a highly advanced eight-by-eight digital matrix mixer that features Gentner® Distributed Echo Cancellation®, noise cancellation, and audio processing with a single-line digital telephone hybrid. This combination provides the highest quality audio for a variety of audio and video conferencing applications—all in a single one-rack unit.

Features

Gentner Distributed Echo Cancellation—four microphone/line echo cancellers remove echo in even the most difficult environments.

EC Reference summing enables the XAP 400 to reference various signals for an echo cancellation reference without requiring a dedicated output.

Noise cancellation reduces background noise such as that caused by fans or air conditioning.

Four independent processing blocks, each with 15 filters, delay, and compressors, provide pinpoint audio configuration.

Four mic/line inputs, four line inputs, and eight outputs.

Enhanced expansion bus provides network capabilities. Eight XAP 400s or XAP 800s can be networked for up to 64 microphone inputs.

Fully configurable matrix which allows you to route any input to any output or combination of outputs.

Front panel control of mute and gain on inputs and outputs.

Safety mute button on the toolbar that mutes all outputs if feedback occurs during the configuration process.

ClearOne’s 100% digital signal processing (DSP) technology ensures crystal-clear audio with the deepest, most reliable hybrid null.

International configuration of telephone hybrid setting

Built-in telephone interface with:

~Telco noise cancellation

~Touch-tone dialing capability (40 character dial string)

~Full-time telco echo cancellation with 31 millisecond tail time

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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ClearOne comm XAP 400 operation manual Introduction, Features