This led, in turn, to the development of a system for producing sets of ergonomic warning sounds. During the 1980's we developed sets of auditory warnings for the UK Civil Aviation Authority, the Defence Research Agency, Farnborough, the Department of Trade and Industry, British Rail, and Racal Acoustics. The system for generating warning sounds was patented and they are now produced commercially. One of these sets of warning sounds led to the development of UK, European and InternationaL Standards for hospital warnings. Guidelines for auditory warning systems on Civil Aircraft, Civil Aviation Authority, Paper 82017, London.
Alarm sounds for medical equipment in intensive care areas and operating theatres.
Auditory warnings for the British Rail inductive loop warning system. In Proceedings of the Institute of Acoustics, Spring Conference, Vol. Auditory warning sounds in the work environment. The project was adopted by the Canadian Government and now flies in the fleet of long-range patrol aircraft that monitor the coasts of Canada and the Arctic. Apparatus and methods for generating auditory indicators.