More on Electret Microphones

Important specifications of an electret microphone are its directivity, sensitivity and signal to noise ratio. Directivity is the directionality or polar pattern and indicates how sensitive it is to sounds coming from different directions and angles. Omnidirectional microphones can pick up sound from any direction like an omnidirectional antenna. They are useful for picking up signals from a group of people. But this can also be a drawback as it can pick up ambient noise and unwanted sounds. Unidirectional microphones pick up sounds primarily from one direction and can eliminate background noises and unwanted sounds. Read More: https://johnsonstechworld.blogspot.co...