Zoom microphone

Microphone analogy to the zoom lens. A design that allows synchronization with a zoom lens so that not only does the action get closer but the audio gets louder and focused. The trick is to make the microphone pickup pattern, or directivity, and sensitivity change from omnidirectional (wide-angle and wide soundstage) to supercardioid. At full zoom this makes the microphone very directional and is combined with higher preamp gain. This allows the audio and video to track in a realistic fashion.