New Zealand's TV3 "Campbell Live" on Inferno sound barriers


This article (26.5Mb) investigates the capability of Inferno sound barriers to repel intruders. With the assistance of an assailant, the TV crew set out to test the sound barrier in two real world situations : an assault on a taxi driver, and a liquor store burglary. Following that is a discussion of the sound barrier : how it works, its impact on those exposed to the sound spectrum, and potential applications.