#BAJAAOTechWeek - Understanding feedback and how to deal with it
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What causes feedback? By definition, feedback is caused by a ‘looped signal’, that is, a signal which travels in a continuous loop. That annoying screechy sound is caused by many different things. A microphone, an amplifier and one or more speakers, makes up the basic components of your PA system. These three elements together can potentially produce feedback, like when the sound from the speaker is reamplified via the microphone, creating a looped signal. There are many ways to deal with feedback, but here are some basic methods that sound and systems engineers make sure of. 1. Mic positioning and choosing the right mic Different microphones have different pickup patterns. A pickup pattern is basically the way a microphone picks up sound and also rejects sound.