Digitizer auditory graph: making graphs accessible to the visually impaired

Authors:
Stephen H. Choi;Bruce N. Walker
Affiliations:
Georgia Institute of Technology, Atlanta, GA, USA;Georgia Institute of Technology, Atlanta, GA, USA
Venue:
CHI '10 Extended Abstracts on Human Factors in Computing Systems
Year:
2010

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Abstract

This paper describes the design goal, design approach, and user testing of an assistive technology called Digitizer Auditory Graphfia sonification software tool that allows users to upload or take an image of a line graph with an optical input device (e.g., webcam, digital camera, cell phone camera) and then hear an auditory graph of the digitized graph image. This technique enables visually impaired students to have a multimodal display of the information in a graph. Preliminary evaluation results indicate that both visually impaired and sighted people can understand the patterns of graphs by listening to auditory graph, and optical input allows them to have simple and fast output results.