United States of America As Represented by the Secretary of the Air Force

Brian D Simpson

Douglas S Brungart

Dianne K Popik

Victor S Finomore, Jr

A multi-modal communications system integrates multiple different communications channels and modalities into a single user interface that enables operators to monitor and respond to multiple audio and text communications.

Multi-modal communications (MMC)

An auditory attitude indicator for aircraft that includes an audio source providing an audible signal, a' stereo headset with a left side and a right side, an aircraft avionics system that provides at least aircraft pitch data and roll data to an audio processor unit. The audio processor unit includes at least one lookup table of coefficients corresponding to a plurality of possible aircraft pitch and roll orientations and at least two selectable multipoint finite impulse response filters. The first selectable multipoint finite impulse response filter having a first coefficient selected by the audio processing unit from the lookup table based upon the aircraft pitch data and roll data for varying the audible signal to the stereo headset left side. The second selectable multipoint impulse response filter for varying the audible signal to the stereo headset right side having a second coefficient selected by the audio processing unit from the lookup table based upon the aircraft pitch data and roll data.

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Centerville, OH, United States of America

Brian D Simpson