What is a Microphone Array? It is 2 or N microphones placed in different positions in the space. According to the sound wave conduction theory, the sound coming from a certain direction can be enhanced or suppressed by using the signals collected by multiple microphones. Using this method, the microphone array can effectively enhance specific sound signals in noisy environments. Because the microphone array technology has good noise suppression and voice enhancement capabilities, and does not require the microphone to point to the direction of the sound source at all times, it has a very good prospect in the field of voice processing.

The technical routes of dual-microphone and multi-microphone arrays are different, and there are also big differences in the algorithm system. Multi-microphone arrays are easier to achieve better noise reduction and voice enhancement effects, but the cost of dual-microphone arrays is much lower, so the actual use more extensive.