Detection of discharge of projectile from firearm

A method for detection of a discharge of a projectile from a firearm, the method comprising:

• recording environmental audio by at least one microphone associated with at least one electronic device;
• based on predetermined triggering criteria, triggering, by a processing unit, a frequency analysis of the environmental audio to determine:
• a first peak in an amplitude of a sound wave generated by the environmental audio, the first peak being indicative of the projectile breaking a sound barrier or an explosion expelling the projectile from the firearm;
• a second peak in the amplitude of the sound wave, the second peak being indicative of the projectile breaking the sound barrier or the explosion expelling the projectile from the firearm;
• and
• a time difference between the first peak and the second peak;
• and
• correlating, by the processing unit, the time difference and a relationship between a frequency of the first peak and a frequency of the second peak with a model to determine a likelihood of the projectile being discharged from the firearm;
• and
• transferring, by a data transfer unit, a value of the likelihood and results of the frequency analysis from the at least one electronic device to a data storage unit for a post-processing.

A system for detection of a discharge of a projectile from a firearm, the system comprising:

• a microphone associated with at least one electronic device, the microphone being configured to record environmental audio;
• a processing unit associated with the at least one electronic device configured to:
• trigger, based on predetermined triggering criteria, a frequency analysis of the environmental audio to determine:
• a first peak in an amplitude of a sound wave generated by the environmental audio, the first peak being indicative of the projectile breaking a sound barrier or an explosion expelling the projectile from the firearm;
• a second peak in the amplitude of the sound wave, the second peak being indicative of the projectile breaking the sound barrier or the explosion expelling the projectile from the firearm;
• and
• a time difference between the first peak and the second peak;
• and
• correlate the time difference and a relationship between a frequency of the first peak and a frequency of the second peak with a model to determine a likelihood of the projectile being discharged from the firearm,
• wherein the frequency analysis includes issuing an alert based on the likelihood of the projectile being discharged from the firearm exceeding a predetermined threshold, the alert including one or more of the following:
• an email, a text message, and an audible signal;
• and
• a data transfer unit configured to transfer a value of the likelihood and results of the frequency analysis from the at least one electronic device to a data storage unit for a post-processing;
• and
• the data storage unit in communication with the processing unit, the data storage unit being configured to store at least the results of the frequency analysis.