A polar pattern graph shows the variation in sensitivity 360 degrees around the microphone - assuming that the microphone is in the centre and that 0 degrees represents the front. There are a number of different directional patterns available, and these are plotted in graphs known as polar patterns. As part of the selection process, understanding the fundamentals of how a microphone picks up sound is crucial, and the key to this is directionality.ĭirectionality is a microphones sensitivity to sound relative to the direction or angle from which the sound arrives. The challenge for an engineer is to select the right microphone for their application and apply the appropriate mic technique to capture the desired sound source and reject unwanted background noise or feedback. Microphones are used to capture or reinforce a particular sound.
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