System Configuration ~ Inputs and Outputs

43

Optimizing input gain structure

How you adjust an input’s gain directly affects sound quality. The optimal input gain

setting is one which is adjusted as high as possible above the noise floor without

introducing clipping. Clipping can cause distortion which can damage amplifiers and

loudspeakers.

To adjust the input level properly, place a signal on the input at the maximum

level it will generate. Adjust the input gain until the peak level of the input, as

shown on the Input meter, just begins to enter the red (clipping) zone, then reduce

the gain slightly until peaks no longer climb into the red zone. This setting will

ensure that the XAP 800 maximizes the signal-to-noise ratio without clipping the

signal.

Meters

There are four meters on each mic/line input to assist with setup and level control.

Select the meter check box to enable the meter. All input meters are peak-level.

Figure 3.43 Meter locations in the Inputs 1–8 signal path

Pre Gain

Pre Gain meter indicates the input’s level before gain adjustments. Meter range is from -85 to -35dB when 55dB gain is selected; -55 to -5dB when 25dB gain is selected; and -65 to 20dB when 0dB gain is selected.

Post Gain

Post Gain meter shows the input’s level after gain adjustments have been made. Meter range is from -30 to +20dB.

Post Processing

Post Processing meter indicates the level at the gating point after the signal has passed through input processing. It reflects the post-AGC signal. Meter range is from -30 to +20dB.

Post Gating

Post Gating meter shows audio level after it has passed through the gating

parameters. Meter range is from -30 to +20dB.

Figure 3.44. Mic input meters

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

Page 50
Image 50
ClearOne comm XAP 800 operation manual Meters

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.