Look who's listening in on public conversations Big Brother has its eyes and ears on Europe – with security cameras that eavesdrop on conversations to sense how private citizens feel and predict violent behavior before it happens.
In what may appear to be a chapter straight out of George Orwell's "1984," a surveillance system currently used in several Dutch cities records public conversations as far as 100 yards away and monitors movements to detect signs of antisocial behavior and fighting. (more)
Sigard Sigard is based on sophisticated sound detection and analysis software that isolates specific sound patterns from the overall ambient sound picture. It dissects and looks for clues in the sound, much like the human hearing does.
Whenever a sensor in the Sigard aggression detection system registers the typical sound characteristics of human aggression, anger or fear, the system will send out an alert. It will trigger the camera nearest the incident or other security surveillance devices. (more)