Every microphone has something called directionality, which refers to how the microphone picks up sounds. Depending on what you’re filming, you may want a microphone that can pick up sound from one direction, all directions or a combination of directions. These different types of microphones are also useful in specific cases. For example, unidirectional lavalier microphones are great for interviews because the microphone is focused on the speaker’s audio and can reduce background noise that might be distracting to listeners. The three main types of microphones are unidirectional, omnidirectional and bidirectional. Learn more about each to determine which is best for your filming.