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The bidirectional polar pattern is identified by its ability to capture sound from two opposite directions, effectively picking up audio from the front and rear while rejecting sound from the sides. This feature makes it particularly useful in certain recording or live sound scenarios. For instance, it can be ideal for capturing conversations between two speakers facing each other, such as in interviews or musical performances with two vocalists.

In contrast, the hypercardioid pattern focuses on sound from the front but has a small lobe of sensitivity at the rear, making it less effective in capturing sound directly from two opposite sources. The omnidirectional pattern, on the other hand, captures sound equally from all directions, which is not specific to just two directions. The cardioid pattern primarily picks up sound from the front, with a significant rejection of sound from the sides and rear. Thus, the bidirectional pattern is uniquely suited for scenarios where sound from two specific opposing directions is needed.