Here in the UK, we need to be careful about what frequencies we set out radio microphone receivers/transmitters. Even if your radio mic set has 1,400 available frequencies only a few are usable legally without a license. Hopefully this page covers the basics and give some practical advise in using radio microphones.
» Read more: Radio Microphones – Legal and Usable Frequencies
Want to know how to reduce feedback? How to minimise Feedback? How to set up microphones and speakers so as to reduce feedback? – This page will give you some helpful ideas and tips to make things sound nice.
What is Feedback?Lots of ways to help you reduce audio feedback in your PA system
Feedback is the screeching/squealing/hooting sound heard when there is an accidental loop in the PA system. That is when the sound from a microphone is amplified and fed to the speakers and then picked up again by the microphone, this sound then carries on round and round resulting in the nasty noise. The feedback frequency depends on a number of factors such as: the resonant frequency of the room, distance of microphone and speakers, frequency response of the microphone, characteristics of musical instruments.
To reduce or eliminate feedback this loop needs to be broken, here are a few ways of doing that. » Read more: Reducing Feedback in a PA System
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