Sigard software can detect verbal aggression with a high level of accuracy. Combined with closed circuit television systems (CCTVs), Sigard by Sound Intelligence can detect verbally aggressive individuals in outdoor public spaces, public transportation, nightclubs and bars.
Here's how it works. A single analysis computer accepts sensor input from a variety of locations. Once the software detects a verbally aggressive human voice, it activates the camera associated with that sensor, bringing it to a security guard's attention. This helps cut down on the number of people needed to monitor CCTVs.
(Sigard aggressive voice sound analysis)
Sigard Sound Intelligence software imitates the way that humans deal with sound, splitting it into different frequencies with varying amounts of energy. Just as a person can immediately detect anger and aggression in the midst of background noise, Sound Intelligence software "listens" for the same parameters that humans use in detecting aggressive speech.
This system is already in place in a few locations in the Netherlands. Police in the UK are also considering installing the system.