US Patent 9639682 Voice activated application for mobile devices

A system and methods for performing authentication to enable a user to access a site monitoring system are provided. The authentication includes voice authentication having at least one threshold that may be dynamically adjustable between false-rejection and false-acceptance. The system includes a processor configured to adjust the at least one threshold for the voice authentication based on at least one factor associated with the site monitoring system. The processor may be configured to perform voice authentication based on the adjusted at least one threshold to authenticate the user.