What is a microphone array? It refers to 2 or N microphones placed in different positions in the space. According to the theory of sound wave propagation, signals collected from multiple microphones can be used to enhance or suppress sound coming from a certain direction. Using this method, microphone arrays can effectively enhance specific sound signals in noisy environments. Due to its excellent ability to suppress noise and enhance speech, microphone array technology does not require the microphone to always point in the direction of the sound source, so it has great prospects in the field of speech processing.
The technical route of dual microphone and multi microphone arrays is different, and there are also significant differences in algorithm systems. Multi microphone arrays are easier to achieve better noise reduction and speech enhancement effects, but the cost of dual microphone arrays is much lower, making them more widely used in practice.