shotgun microphone

A shotgun microphone is a type of electroacoustic transducer designed for highly directional sound pickup. It achieves this by using a long, slotted tube that interferes with sound waves arriving from the sides, effectively canceling them out while allowing sound from the front to reach the microphone's diaphragm directly. This makes them ideal for isolating a specific sound source, such as dialogue in film production or wildlife sounds in nature documentaries.1

Microphones, in general, convert acoustic energy into electrical energy. They do this by using a diaphragm that vibrates in response to sound waves. This vibration then causes a change in an electrical circuit, such as variations in resistance, capacitance, or magnetic field interaction, depending on the microphone's type.2