1. A method for detecting objects of interest using sounds, the method comprising: monitoring for the sounds using a sensor array of a plurality of microphones arranged in a uniform hexagonal array pattern; forming a number of beams, wherein each beam in the number of beams is formed for a selected direction in which the selected direction for the each beam is relative to a line of sight for the sensor array; and identifying a presence of a number of objects of interest using the number of beams and the sounds detected by the sensor array.