High Directionality Microphones

For many applications it is necessary to use a microphone with directional properties exceeding those of the first-order cardioid family. In the film/video industry, for example, dialog pickup on the shooting set is usually done by way of an overhead boom microphone which must be clearly out of the picture and may be two or more meters away from the actors. Adequate pickup may depend on a highly directional microphone to ensure both speech intelligibility and a subjective sense of intimacy.