Glossary

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Cross point The intersection between an input and an output in the routing matrix. Cross point cells are colored according to input type.

Cross point attenuation The process of attenuating audio level at the cross point. Audio can be attenuated from 0 to 60dB.

Decay Rate (slow, medium, fast) Determines how fast a channel gates off after hold time expires. Default is medium.

Default meter The input/output displayed on the front panel LED meter when a input/output meter is not specifically selected elsewhere.

Delay A setting in the Processing window. Delay calculates the amount of signal delay (up to 500ms) based on the distance between audio source and audience and the temperature.

Device ID A number which identifies the unit when multiple units of the same device type are connected in an E-bus network. Because up to eight XAP 800s may be used in the same network, the device ID range is 0–7.

Device Type A number which identifies the type of unit. For example, a XAP 800 is device type 5.

DSP Digital signal processor.

Echo Canceller Reference The signal point which contains an electronic copy of all signals which will be removed from the signal the mics pick up. This is always the far-end audio and, optionally, local program material.

EC Reference summing The ability to include multiple signals in a single reference. See also Virtual Reference.

ERL Found in the Acoustic Echo Canceller window, the echo return loss (ERL) meter shows the coupling between the reference signal and the input to the echo canceller—the ratio of the two levels.

ERLE Found in the Acoustic Echo Canceller window, the echo return loss enhancement (ERLE) meter shows the loss through the echo cancellation and non- linear processing chain—the ratio of the two levels.

Expansion Bus Consists of two RJ-45 connectors on the rear panel of the XAP

800.An Expansion Bus allows multiple XAP 800s to be networked together using category five twisted-pair (10BaseT) cable.

Expansion Bus reference One of the echo cancellation/PA adapt reference options. The Expansion Bus reference allows you to reference an output on a networked unit.

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ClearOne comm XAP 800 operation manual 133

XAP 800 specifications

The ClearOne Comm XAP 800 is a sophisticated audio conferencing system designed to provide seamless communication in various environments, including conference rooms, boardrooms, and large meeting spaces. Known for its versatility and cutting-edge technology, the XAP 800 is a favorite solution for organizations seeking to enhance their audio conferencing capabilities.

One of the standout features of the XAP 800 is its ability to support up to 16 microphones. This is crucial for larger meetings, ensuring that every participant can be heard clearly, regardless of their location in the room. The device uses advanced audio technologies, including Automatic Gain Control (AGC), which automatically adjusts microphone sensitivity to maintain consistent audio levels. This ensures that the conversation remains intelligible even as participants lean in or shift their positions.

The XAP 800 also incorporates ClearOne’s proprietary Acoustic Echo Cancellation (AEC) technology. This feature eliminates echo disruptions that can occur in audio conferencing, allowing for clear and productive conversations. AEC works by differentiating between direct sound from microphones and echoed sound returning from speakers, ensuring that participants hear each other without feedback interference.

Another significant advantage of the XAP 800 is its integration capabilities. The system is designed to work seamlessly with a variety of third-party audio and video conferencing products, allowing businesses to expand their communication infrastructure without the need for extensive reconfiguration. The XAP 800 also supports USB connectivity, enabling easy integration with PCs and laptops for web conferencing solutions.

The device is equipped with multiple audio input and output ports, providing flexibility in configuration. Users can connect various hardware such as external speakers, additional microphones, and even video conferencing equipment. This adaptability makes the XAP 800 suitable for different setups, whether it’s a simple room with a few microphones or a complex installation with multiple audio and video sources.

User-friendly controls and an intuitive interface make operation straightforward, allowing even those less tech-savvy to manage audio settings with ease. The system is designed to be installed quickly, reducing downtime and ensuring that organizations can get back to effective communication without delay.

In summary, the ClearOne Comm XAP 800 is a powerful audio conferencing solution that combines advanced technologies with flexibility and ease of use. Its features such as support for multiple microphones, Acoustic Echo Cancellation, and seamless integration with other systems make it an ideal choice for businesses looking to enhance their communication efforts.