● In Vienna, Austria, a start-up created by a Portuguese entrepreneur has developed an augmented-reality audio technology, which in combination with a map-based guidance system, enables users to follow a route marked by audio signals. ● Enhanced by computer vision, the software directs users to safe obstacle-free spaces, and recognizes street signs and pedestrian crossings. ● Dreamwaves has also signed a partnership with a traffic signal management company to enable users with disabilities to request priority to cross at intersections.