(Jasba Simpson )

From:    Jasba Simpson  <jasba(at)CAE.CA>
Date:    Tue, 15 Nov 1994 18:17:40 EST

Controlling the directionality of sound has always been a classic problem in designing flight simulators. How does one convey the broad aerodynamic hiss around the nose of the aircraft as well as the point source of an engine failure? Current designs involve almost a dozen speakers spread around the cockpit. Not only is it expensive, but the simulated sound environments are not always convincing. Recent commercial demos of stunning 'imaging' of auditory environments have inspired a research effort at CAE to control the directionality of simulated sounds more directly. I am very interested in hearing comments/receiving references concerning this proposed effort. Specifically, does current research in directionality provide the knowledge to process sounds to 'place' them in an auditory field using a small number of speakers? Thank you for your time, Jasba Simpson Flight Simulator Motion and Sound Systems CAE Electronics Ltd.

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