A system, device and method facilitate accurate detection of gunshot events through spectrum analysis of impulse signals and/or evaluating impulse signal exponential decay amplitude and time values. In various embodiments, the device and system employ an acoustic sensor, one or more high-pass and low-pass filters, a threshold detector, a differentiator, a decay waveform shape generator, one or more comparators and one or more timers to facilitate detection of gunshot events and/or components of gunshot events.

A system, device and method facilitate accurate detection of gunshot events through spectrum analysis of impulse signals and/or evaluating impulse signal exponential decay amplitude and time values. In various embodiments, the device and system employ an acoustic sensor, one or more high-pass and low-pass filters, a threshold detector, a differentiator, a decay waveform shape generator, one or more comparators and one or more timers to facilitate detection of gunshot events and/or components of gunshot events.

A system, device and method facilitate accurate detection of gunshot events through spectrum analysis of impulse signals and/or evaluating impulse signal exponential decay amplitude and time values. In various embodiments, the device and system employ an acoustic sensor, one or more high-pass and low-pass filters, a threshold detector, a differentiator, a decay waveform shape generator, one or more comparators and one or more timers to facilitate detection of gunshot events and/or components of gunshot events.

A system, device and method facilitate accurate detection of gunshot events through spectrum analysis of impulse signals and/or evaluating impulse signal exponential decay amplitude and time values. In various embodiments, the device and system employ an acoustic sensor, one or more high-pass and low-pass filters, a threshold detector, a differentiator, a decay waveform shape generator, one or more comparators and one or more timers to facilitate detection of gunshot events and/or components of gunshot events.

Techniques for gunshot analysis in an indoor environment are disclosed. A gunshot sensor is placed in the indoor environment. The gunshot sensor includes multiple individual sensors, including, but not limited to, an infrared sensor and an acoustic sensor. A firearm typically emits energy within the infrared spectrum, which is detected by the infrared sensor. A firearm typically further emits an acoustic pressure wave, which is detected by acoustic sensor. The gunshot detector can differentiate between a gunshot and a strobe from a fire alarm, based on information from the infrared sensor and acoustic sensors. The infrared sensor information and the acoustic sensor information are analyzed to determine that a gunshot has occurred in a timeframe between strobe events. The gunshot determination takes place independently of the location of the gunshot sensor. Reverberations and reflections add cumulatively to the collected acoustic and infrared information.

Techniques for gunshot analysis in an indoor environment are disclosed. A gunshot sensor is placed in the indoor environment. The gunshot sensor includes multiple individual sensors, including, but not limited to, an infrared sensor and an acoustic sensor. A firearm typically emits energy within the infrared spectrum, which is detected by the infrared sensor. A firearm typically further emits an acoustic pressure wave, which is detected by acoustic sensor. The gunshot detector can differentiate between a gunshot and a strobe from a fire alarm, based on information from the infrared sensor and acoustic sensors. The infrared sensor information and the acoustic sensor information are analyzed to determine that a gunshot has occurred in a timeframe between strobe events. The gunshot determination takes place independently of the location of the gunshot sensor. Reverberations and reflections add cumulatively to the collected acoustic and infrared information.

A firearm discharge detection method includes: programming a gunfire detector to report audio sensor data that comprises acoustic data falling outside of an expected sound level; receiving the audio sensor data; comparing the audio sensor data to stored gunshot signatures to identify possible gunfire; reporting the possible gunfire.

A firearm discharge detection method includes: programming a gunfire detector to report audio sensor data that comprises acoustic data falling outside of an expected sound level; receiving the audio sensor data; comparing the audio sensor data to stored gunshot signatures to identify possible gunfire; reporting the possible gunfire.

Active shooters are becoming a common threat in public areas. Detection and analysis of a gunshot in a public area can aid administrative and first responder personnel in determining that a gun has been fired and in stopping the threat quickly. Embodiments of the present disclosure are directed to solutions for detecting and analyzing gunshots and other threats, and transmitting that information to administrative personnel and first responders.

Active shooters are becoming a common threat in public areas. Detection and analysis of a gunshot in a public area can aid administrative and first responder personnel in determining that a gun has been fired and in stopping the threat quickly. Embodiments of the present disclosure are directed to solutions for detecting and analyzing gunshots and other threats, and transmitting that information to administrative personnel and first responders.