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How to diagnose microphone feedback feedback?

Deborah Edwards

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Deborah Edwards on July 16, 2020

Microphone feedback is caused by feeding the same signal back to the microphone, usually through a monitor speaker in a live concert situation. Because most microphones are non-linear frequency response, the reaction is usually exaggerated and is heard as a slow low sound, or very fast, and skewers of tone. For example, a Shure SM58 has a peak of around 1khz that usually feeds back very easily if you put your hand on the top of the grid. If the feedback is very slow, it is usually below 1khz, if it is fast, generally above 1 khz. You can try to remove comments with winning best editing, best microphone options and an equalizer.

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