Feedback is that piercing squeal when a microphone picks up sound from the speakers and loops it back. It's avoidable, and understanding why it happens helps everyone at your event.
Keep mics behind the speakers
The most common cause is a microphone pointing at, or standing in front of, the main speakers. Positioning speakers ahead of where people speak — so mics never face them — prevents most feedback.
Mind the mic technique
Cupping the top of a microphone or holding it too far away forces the volume up and invites feedback. A quick word to presenters on holding the mic correctly makes a big difference.
Let the system be tuned
A technician tunes the sound system to the room, reducing the exact frequencies that would otherwise ring. This is why a professionally-run setup rarely squeals.
The easy fix
The reliable answer is a properly set-up system with a technician on hand. JMG Audio positions, tunes and monitors the sound so feedback isn't a worry at your event.
Frequently asked questions
What causes microphone feedback?
A microphone picking up sound from the speakers and looping it — usually because the mic faces the speakers, is used incorrectly, or the system is not tuned to the room.
How do you prevent feedback?
Position speakers ahead of the microphones, use good mic technique, and have a technician tune and monitor the system. JMG Audio handles all of this for you.
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