Microphone determination method and terminal

A microphone determination method and terminal, the method comprising: acquiring an acoustic signal received by each microphone in a microphone array, the acoustic signal comprising a signal from a sound source; determining position information of the sound source according to the acquired acoustic signal of each microphone; and determining a master microphone from the microphone array according to the determined position information of the sound source. According to the present invention, by means of determining a master microphone and adjusting the denoising algorithm on the basis of the determined master microphone, when a user position is changed, the denoising algorithm may be adjusted, thus improving the call quality and user experience.