Kinda scary...Big Brother potential, etc...
http://www.globetechnology.com/servlet/story/RTGAM.20041217.gtshotsdec17/BNStory/Technology/ In an unusual application of neuroscience research, police agencies around the country may soon be able to equip street corners with microphones and video cameras to fight gun-related crime. The system, based on work by Dr. Theodore Berger, director of the Center for Neural Engineering at the University of Southern California, uses the equipment and a computer to recognize gunshots, pinpoint where they came from and transmit the co-ordinates to a command centre. It relies on software that mimics the way the human brain receives, processes and analyzes sound. The system has drawn the attention of several law enforcement agencies, including police departments in Chicago, Oklahoma City and Phoenix and the Los Angeles County Sheriff's Department.
The system uses four microphones, contained along with the computer in a bulletproof box two feet by two feet by three feet. The system is able to determine quickly where a gun was fired, using the difference in time that the sound took to reach each microphone. The computer sends a signal to the video camera, which zooms in on the location. The system then transmits information and the video directly to law enforcement headquarters. The devices, which cost up to $25,000 each, can cover an area with a radius of about 200 yards
Beyond standard urban law enforcement, the U.S. military has taken notice of Berger's research.
In fact, the Office of Naval Research in Arlington, Va., has been financing his neuroscience research for the last 10 years.
In the summer of 2002, Berger had been working on applying his research to voice recognition software, and discovered that it worked even in very noisy environments. The Office of Naval Research and Baker both approached him independently to discuss possible commercial applications. Berger said that the military had ideas for using his technology to monitor "security-breaching noises," such as the sound of a chain-link fence being cut, or to recognize human voices in unauthorized areas.