How to Prevent Feedback on Stage When Running Live Sound: Tips and Techniques

Live sound engineers know that feedback is one of the most frustrating problems that can occur during a performance. It can ruin the sound quality and distract the audience from the performance. Feedback is caused by the sound from the speakers being picked up by the microphones and then amplified again. This creates a loop that results in a loud, high-pitched noise.

Fortunately, there are several methods that can be used to prevent feedback on stage. One of the most effective methods is close miking. This involves placing the microphones as close as possible to the sound source. This reduces the amount of gain that is required and minimizes the chance of feedback. Another method is to ring out the microphones. This involves setting proper gain and bringing up the mic in the PA or monitor speakers until it begins to feedback. Remove the offending frequency and bring up the mic until the next frequency feeds back and remove that.

Live sound engineers should also be aware of the importance of providing space between microphones and speakers. The most effective way to increase a system’s maximum gain before feedback is to create more distance between the microphone and the speakers. It’s also important to keep each mic as close to its source as possible to reduce the need for the sound engineer to have to add gain at the mixing desk for the PA, and it reduces stray signals from being picked up by the mic. By following these methods, live sound engineers can prevent feedback and ensure a high-quality performance.

Published by: zigshop.com, October 22, 2023