A guidance system uses music in the form of a short sequence of tones to provide guidance and spatial awareness to a visually impaired user. While the guidance system detects obstacles and guides the user to a desired location, the tones efficiently communicate guidance and spatial awareness information to the user. The tones are presented in a predictable natural rhythm synchronized with the user’s gait. The various pitches, volumes, and time between the tones communicate directions, clearance widths, alerts, and moving obstacles to the user. The tones are intuitive and non-intrusively played in the background, allowing a user to focus on other activities while responding to directions.
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Goossens, Erik; Yang, Cheng; and Chen, Charles, "Providing Guidance and Spatial Awareness to the Visually Impaired", Technical Disclosure Commons, (May 01, 2017)