What’s an LRAD? Explaining the ‘sonic weapons’ police use for crowd control and communication
FEATURE: A Long-Range Acoustic Device (LRAD) was used by ACT officers in Canberra last week as part of the policing operation dealing with vaccine mandate protests, prompting a range of concerns and claims about the damage done by the device; composer, artist and sonic expert Lawrence English, a Research Fellow at Queensland’s Griffith University, explains the workings and limitations of LRADs.