This makes unidirectional microphones effective at isolating the desired sound from both unwanted sound and ambient noise.Ī bidirectional microphone (with figure-8 pattern) picks up the sound from in front of the microphone (at 0°) and from the rear (at 180°), but not the side (at 90° and 270°). Unidirectional microphones are most sensitive to sound arriving from directly in front (at 0°) and less sensitive in other directions. It will be especially useful in good sounding rooms. Therefore, the microphone need not be aimed in a certain direction. This means it picks up sound evenly from all directions. The omnidirectional microphone has equal sensitivity at all angles. ![]() It is easy to get a good signal as the cardioid pattern blends out a bad sounding room, a noisy fan in the background, etc. You can use this for most recording applications. This isolates it from unwanted ambient sound. The most commonly used pattern is most sensitive at 0° (the front) and least sensitive at 180° (the back). ![]() The most common types are: Cardioid, Omnidirectional, Unidirectional, Bidirectional. The pick-up pattern of a microphone is the sensitivity to sound relative to the direction or angle from which the sound arrives, or how well the microphone "picks up" the sound from different directions.
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