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Digitizer Auditory Graph: MakingGraphs Accessible to the VisuallyImpaired
Abstract
This paper describes the design goal, design approach,
and user testing of an assistive technology called
Digitizer Auditory Graph—a 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.
Keywords
Sonification, auditory graph, assistive technology,
visually impaired
ACM Classification Keywords
H5.2 User Interfaces: Auditory (non-speech) feedback.
K4.2 Social Issues: Assistive technologies for persons
with disabilities
Copyright is held by the author/owner(s).
CHI 2010, April 10–15, 2010, Atlanta, Georgia, USA.
ACM 978-1-60558-930-5/10/04.
Stephen H. Choi
Sonification Lab, School of
Interactive Computing
Georgia Institute of Technology
654 Cherry St.
Atlanta, GA 30332 USA
heejoong@gatech.edu
Bruce N. Walker
Sonification Lab, Schools of
Psychology and Interactive
Computing
Georgia Institute of Technology
654 Cherry St.
Atlanta, GA 30332 USA
bruce.walker@psych.gatech.edu
CHI 2010: Work-in-Progress (Spotlight on Posters Days 1 & 2) April 12–13, 2010, Atlanta, GA, USA
3445
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