Abstract: A threat detection and response system including at least one sound sensor configured to sense sound within a detection zone and transmit sound data corresponding to the sensed sound. A system gateway including a processor configured to receive the sound data, analyze the sound data to detect a vocal phrase within the sensed sound, determine that the detected vocal phase corresponds to a pre-defined vocal phrase associated with a threat, and communicate an existence of the threat to a recipient device.

Abstract: A threat detection system includes a processor configured to receive a stream of audio data from one or more sensors positioned in or around a space monitored by the threat detection system; extract a portion of the stream of audio data; determine a signal characteristic of the portion of the stream of audio data; after determining that that a portion of the stream is compatible with a first machine learning model, determine a first confidence score for an existence of a threat in the space using the first machine learning model; determine a second confidence score by providing the portion of the stream of audio data, the signal characteristic, and the first confidence score to a second machine learning model; detect the existence of the threat based on based first and/or second confidence scores; and communicate the existence of the threat to a recipient device.

Abstract: A threat detection system includes a processor configured to receive a stream of audio data from one or more sensors positioned in or around a space monitored by the threat detection system; extract a portion of the stream of audio data; determine a signal characteristic of the portion of the stream of audio data; after determining that that a portion of the stream is compatible with a first machine learning model, determine a first confidence score for an existence of a threat in the space using the first machine learning model; determine a second confidence score by providing the portion of the stream of audio data, the signal characteristic, and the first confidence score to a second machine learning model; detect the existence of the threat based on based first and/or second confidence scores; and communicate the existence of the threat to a recipient device.