The invention relates to a device for matched positioning by repeatedly determining the direction of a target through
sound wave application, in particular to a
microphone array in a sound source orienting device. The
microphone array in the sound source orienting device comprises four microphones, a supporting frame, a rotating bar, a rotating shaft and an included angle measuring mechanism. The rotating bar of the
microphone array in the sound source orienting device can rotate along the rotating shaft, in the using process, the
microphone array is opened along the shaft, so that different included angles are formed, the four microphones form a geometric structure change array in three-dimensional space, hence, the target can be repeatedly oriented, the orienting accuracy is improved, when the
microphone array is not used, the rotating bar of the
microphone array is rotated to be in the state that the array included angle is zero degree, and the defects that a microphone array in an existing sound source orienting device is fixed in structure, so that the occupied space is large, transporting and carrying are not convenient, in the target locating process, a single array is used for receiving sound source signals, locating can be limited by the size and the geometric structure of the array easily, and thus the adaptability and practicability of the sound source orienting device are greatly lowered can be overcome.