PRELIMINARY

Switcher Software, cont’d

Finalizing the output gain structure

Adding a compressor generally reduces the signal level, while a filter may boost or cut the overall signal level. Loudness boosts the overall signal level, but mostly at lower volume settings (see “Calibrating loudness” for more information).

1. Add any processors that you wish to use into the output signal chain.

After adding processors to the output signal chain, the output volume level may clip when set to or near 100%.

2. Set output volume to a level where clipping is eliminated.

TRemember that the output volume control is essentially the same volume control that is accessible to a front panel or Matrix Switchers Control Program operator. These operators may unknowingly change the volume back to a level where clipping occurs. You reduce the chance of this inadvertent clipping by using the post-matrix trim control rather than the volume control (see “Adjusting the post-matrix trim”).

NMic levels also contribute to possible clipping at the outputs. They may need to be lowered at the mic mix-points to maintain the balance between program material (line inputs) and voice (mic).

Setting the mic input and mic mix-point levels

1.

Double-click the mic mix-point to be set, opening the dialog box for that

 

mix-point.

2.

Unmute the mix-point (mixing in the mic signal). The default level is 0.0 dB,

 

or unity gain.

3.

Connect your chosen microphone to mixed mic/line input.

4.

Open the mic input gain dialog box for the mixed mic.

5.

If your mic requires phantom power, turn it on in the mic input dialog box.

6.

Unmute the mic/line input.

7.

While testing the mic, raise the mic gain fader until the mic is clearly audible.

 

The gain level and the mic gain meter level reading vary at this point, but as a

 

general guideline, the input gain level is approximately 40 dB to 50 dB and the

 

meter averages approximately -20 dBFS.

TYou want to optimize audio here, but voice levels at microphone inputs can vary greatly. Having the meters average around -20 dBFS gives enough headroom to accommodate sudden changes to voice levels. Further adjustment may be necessary.

5-38 MPX Plus 866 A Media Presentation Matrix Switcher • Switcher Software

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Extron electronic MPX Plus 866 A Finalizing the output gain structure, Setting the mic input and mic mix-point levels

MPX Plus 866 A specifications

The Extron MPX Plus 866 A is a powerful multimedia presentation switcher designed to meet the needs of modern AV environments. This advanced device simplifies the management of multiple audio and video sources, providing seamless control and connectivity in various settings such as conference rooms, classrooms, and auditoriums.

One of the key features of the MPX Plus 866 A is its ability to handle a wide range of video formats. It supports both HDMI and analog video, allowing for compatibility with different devices. This versatility ensures users can connect laptops, projectors, and other AV equipment without any issues, making it ideal for mixed-use environments where various technologies coexist.

With an 8x8 matrix design, the MPX Plus 866 A can route up to eight different input sources to eight output destinations. This feature enables users to select and switch between sources quickly and efficiently, enhancing the overall presentation experience. Additionally, the device incorporates Extron's high-performance scaling technology, which ensures that video signals are processed with exceptional clarity and detail, regardless of resolution.

Another noteworthy characteristic of the MPX Plus 866 A is its built-in audio capabilities. The switcher includes a comprehensive audio mixer with support for both analog and digital audio signals. This allows users to integrate and control audio sources effectively, ensuring that sound quality matches the visual experience. Furthermore, it features advanced audio processing tools, including equalization and filtering functions, to enhance audio output in any environment.

The MPX Plus 866 A also emphasizes ease of use and accessibility. Its user-friendly interface, combined with an intuitive control system, allows operators to navigate the device with minimal training. Additionally, the switcher supports various control options, including RS-232 and Ethernet, enabling integration into larger AV control systems for centralized management.

In summary, the Extron MPX Plus 866 A stands out as a versatile and reliable multimedia presentation switcher. Its extensive range of input and output options, advanced scaling and audio processing technologies, and emphasis on user-friendly design make it an exceptional choice for any professional AV installation. Whether in an educational setting or corporate environment, the MPX Plus 866 A ensures seamless connectivity and high-quality performance, meeting the demands of today’s multimedia presentations.