Avoiding Feedback, More Tips to Avoid Interference

Microphone Basics

Avoiding Feedback

Acoustic feedback can be a problem in any sound system. Audio systems that include wireless microphones are somewhat more prone to feedback than those using only wired microphones, simply because the freedom of movement with wireless makes it more likely that the user will walk in front of the speakers. Take steps to make it less likely that the wireless user will walk in front of the speakers. These steps can include more rehearsal time, markings on the floor, relocation of the speakers and several other options.

More Tips to Avoid Interference

•Lower the sound level of the speakers nearest the wireless user and increase the level of other speakers to compensate. If possible, rotate the nearest speakers to point them slightly away from the wireless user.

•Make certain that the transmitter gain is set appropriately for your application. If the transmitter gain is set too high, it may cause overloading of the wireless circuits and increase the chances of feedback.

•Most standard techniques for reducing feedback will also work with wireless microphones. Because of the increased chance of feedback with wireless, understanding and being able to apply these techniques will be helpful.

•Request that the talker speak louder into the microphone so microphone levels can be reduced.

•Reduce the distance from the talker to the microphone.

•Reduce the number of open microphones. Each time this number is halved, the sound system output can be increased by 3dB.

•Move the loudspeaker farther away from the microphone.

•Move the loudspeaker closer to the listener.

•Use an equalizer/feedback reducer to cut the frequency bands in which the feedback occurs.

DA-2277 & Stage Monitors/P.A. System

•Place the stage monitor directly behind the microphone.

•Locate the P.A. loudspeakers so that they point away from the rear of the microphone. (With the speakers located in these positions, the possibility of feedback is greatly reduced).

•Always check the stage setup before a performance to ensure optimum placement of microphone and monitors.

IMPORTANT: Every wireless microphone installation is a unique situation, and can present a variety of problems. Never attempt a live performance without first conducting a "walk through" test of the system in the performing area.

If major changes (additional wireless systems or intercoms, relocation of scenery, etc.) have been made since the last walk–through test, check the wireless system again— as close to performance time as possible.

DA2277 specifications

The VocoPro DA2277 is a versatile and powerful dual wireless microphone system designed for professional audio applications. It is an ideal choice for performers, DJs, and presenters who require high-quality sound and reliability in various performance settings. With its innovative features and advanced technologies, the DA2277 sets itself apart in the crowded market of wireless microphone systems.

One of the standout features of the VocoPro DA2277 is its dual-channel receiver, which allows users to operate two wireless microphones simultaneously. This capability is especially useful for performances that require multiple speakers or vocalists, as it enables seamless switching between microphones without any interruption in audio quality. The receiver is equipped with a clear LCD display, providing real-time information on frequency, signal strength, and battery status, ensuring users can monitor their performance effectively.

The DA2277 operates in the UHF frequency range, which allows for a more stable and interference-free signal compared to VHF alternatives. This UHF technology minimizes the risk of dropouts and ensures that audio remains crisp and clear, even in crowded environments with potential wireless interference. Additionally, the system includes a wide frequency response range, ensuring that it can capture the nuances of the human voice as well as instrumentation.

Another notable characteristic of the VocoPro DA2277 is its lightweight and ergonomic handheld microphones. Designed for comfort and ease of use, these microphones feature a dynamic capsule that delivers excellent sound quality and durability, making them suitable for a variety of performance situations. The microphones also come with built-in battery life indicators, providing users with peace of mind during extended performances.

The DA2277 is also equipped with features like automatic frequency selection and infrared synchronization, making it easy to set up and operate. Users can quickly find an available frequency and sync it to the microphones, minimizing setup time and maximizing performance efficiency.

Overall, the VocoPro DA2277 combines functionality, technology, and user-friendly design, making it an excellent choice for anyone in need of a reliable and high-performing wireless microphone system. Its dual-channel capability, UHF operating range, and precise audio capture make it an essential tool for performers and presenters alike. With the DA2277, users can focus on delivering their best performances without worrying about audio quality or reliability.