InterSon: Interactive Sonification for Geo-referenced Data Exploration for the Vision Impaired

InterSon is an interactive sonification tool that allows vision im-paired users to explore complex geo-referenced statistical data for fact finding, problem solving and decision making. Examples include maps of population density, crime rates or housing prices. The integrated use of sounds and speech allows users to hear the overall distribution of values on maps and to explore the map to get more details. Users can use the standard computer keyboard, or take advantage of special devices such as a touchpad when they are available. Synchronized auditory and visual displays allow the use of residual vision and facilitate collaboration with sighted colleagues.