Suggested Logic Applications, Cough Button | Shure SCM410E specification

SUGGESTED LOGIC APPLICATIONS

This section contains suggestions on the uses of the SCM410's logic capabilities. Note that uses of these functions are not limited to the listed applications. The user is limited only by imagination and creativity. For additional suggestions and solutions to installation problems, contact the Shure Applica- tions Department.

Cough Button

The talker can turn off his or her microphone during coughing or private conversations by installing an SPST pushbutton switch between the MUTE IN and Logic Ground pins for each channel to be modified (see Figure 20). When a channel is muted, no audio is passed. (See Dead Zone on MUTE IN De-

Remote Channel-On Indicators

Remote indicators can be used to indicate when a talker's mi- crophone is on. Connect the LEDs and a 5-volt supply to the GATE OUT pins (See Figure 22). To avoid switching clicks in the audio output, do not ground the power supply negative ter- minal in the audio system or rack ground.

IMPORTANT: If a single cable is used for the microphone au- dio signal and the LED dc power, separate shielded pairs must be used. Failure to carry the dc power on a shielded pair may result in audible clicking due to capacitive coupling between the dc power lines and microphone lines.

feat paragraph in the Internal Modifications section for more in- formation on MUTE IN logic.)

470Ω, 1/4 W

+5 V POWER

SUPPLY

470Ω, 1/4 W

LOGIC

GROUND

LOGIC

GROUND

470 Ω, 1/4 W

REMOTE CHANNEL-ON INDICATORS

FIGURE 22

Disabling the Gating Function (Bypass)

COUGH BUTTONS

FIGURE 20

Chairperson-Controlled Muting

The chairperson can, by activating a switch, silence all other microphones and be heard without interruption. For operation in this mode, connect all the MUTE IN pins together except that

To keep certain microphones on at all times, wire the desired microphone channel's OVERRIDE IN pins together to the Log- ic Ground pin. The selected channels now function as they would in a non-automatic mixer (see Figure 23). To perform this modification internally on the mixer, refer to the Shorting Override In to Logic Ground Internally paragraph in the Inter- nal Modifications section.

of the chairperson's channel, and wire an SPST pushbutton or toggle switch between those MUTE IN and Logic Ground pins (see Figure 21).

An alternative to a switch is to connect the chairperson's GATE OUT to the MUTE IN of other channels. When the chairper- son's microphone activates, all other microphones mute.

LOGIC

O1 O2 O3

LOGIC

GROUND

GATING BYPASS

FIGURE 23

CHAIRPERSON-CONTROLLED MUTING

FIGURE 21

SCM410E, SCM410 specifications

The Shure SCM410 and SCM410E are state-of-the-art automatic microphone mixers designed to enhance audio performance in various professional environments. Known for their reliability and advanced features, these mixers are a popular choice for broadcasters, conferencing systems, and live event productions.

One of the key features of the SCM410 is its Automatic Gain Control (AGC) system, which intelligently adjusts the gain of connected microphones based on their audio levels. This ensures that the output remains consistent, making it ideal for situations where multiple speakers might share the microphone, such as panel discussions or meetings. The SCM410E variant further enhances this functionality with extended connectivity options, catering to more complex audio setups.

Both models incorporate Shure's exclusive IntelliMix technology. IntelliMix employs sophisticated algorithms to minimize interference and eliminate feedback, which is crucial for maintaining intelligibility in crowded sound environments. The mixers automatically manage the microphone levels, activating only those that are in use while suppressing those that are not, which not only enhances audio clarity but also helps in reducing background noise.

The SCM410 features four microphone inputs, allowing operators to connect multiple microphones simultaneously. Users can easily control each input's level, with individual gain adjustments and a master output level control. Additionally, LEDs provide visual feedback on the status of each microphone, indicating when they are active or inactive. The SCM410E goes a step further, offering additional mic input options and enhanced flexibility for integration into larger systems.

Durability is a hallmark of the SCM410 and SCM410E, as they are constructed with high-quality materials, designed to withstand the rigors of professional use. The intuitive interface makes them accessible for both novice users and seasoned sound engineers.

With a phantom power switch for condenser microphones, an easy-to-read, backlit display, and robust connectivity options, the SCM410 and SCM410E are versatile tools for any audio setup. Their ability to automatically mix and control audio levels in real-time ensures that users can deliver presentations, discussions, and performances with clarity and confidence. Whether it’s in a corporate boardroom or a live concert venue, these automatic microphone mixers deliver high-quality sound tailored to the needs of modern audio applications.