Patent ID: 8457962
Filing Date: 2013-06-04
Classification: A01K

Abstract:
1. A device for remote audio surveillance for detection of wildlife sounds, comprising: one or more batteries as a power source; a microphone system for receiving audio input from a first sound source, said microphone system comprising: first, second and third microphones, said first, second and third microphones being radially outwardly directed and angularly spaced apart substantially equidistant from each other on a horizontal plane substantially parallel to a ground surface; said first microphone being adapted to receive first audio input data from said first sound source; said second microphone being adapted to receive second audio input data from said first sound source; said third microphone being adapted to receive third audio input data from said first sound source; recorder member for recording said first, second and third audio input data; means for amplifying and filtering said first, second and third audio input data; means for storing amplified and filtered first audio input data on a removable digital mass storage device; means for storing amplified and filtered second audio input data on a removable digital mass storage device; means for storing amplified and filtered third audio input data on a removable digital mass storage device; programmable clock means by which said recorder can be activated, thereby enabling unattended recording; means to play back recorded audio; a directionality analysis system for conducting a directionality analysis of a wildlife-generated recorded sound, wherein said directionality analysis system receives, with said first microphone, first wildlife audio input from a first wildlife sound source; records, with said recorder member, said first wildlife audio input; determines an amplitude corresponding to said first wildlife audio input; receives, with said second microphone, second wildlife audio input from said first wildlife sound source; records, with said recorder member, said second wildlife audio input; determines an amplitude corresponding to said second wildlife audio input; receives, with said third microphone, third wildlife audio input from said first wildlife sound source; records, with said recorder member, said third wildlife audio input; determines an amplitude corresponding to said third wildlife audio input; determines which, among said amplitude of said first wildlife audio input and said amplitude of said second wildlife audio input and said amplitude of said third wildlife audio input, is the greatest amplitude; identifies as being the closest to said first wildlife sound source, a microphone among said first, second and third microphones that received wildlife audio input corresponding to said greatest amplitude where referenced microphones are aligned on a horizontal plane; a distance analysis system for conducting a distance analysis of said wildlife-generated recorded sound, wherein said distance analysis system identifies the absolute magnitude of said greatest amplitude; and calibrates a distance from said device to said first wildlife sound source based on said absolute magnitude, and on weather and seasonal conditions in the vicinity of the device; wherein said first, second and third microphones are each recessed into a housing.