System for improving voice recognition of the array microphone for vehicle and method thereof

The present invention estimates a starting point of a voice signal by using a voice signal received from a plurality of micro sensors and adjusts the beam forming region of an array microphone with a region which covers the estimated starting point. Thereby, the beam forming region is actively adjusted even when the starting point changes due to the movement or various physical properties of a user. Therefore, the call quality and voice recognition efficiency of an array microphone system can be improved. [Reference numerals] (100) Micro sensor; (200) Head unit; (210) Estimation unit; (220) Storage unit; (230) Adjustment unit