digitizer auditory graph: making

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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

    [email protected]

    Bruce N. Walker

    Sonification Lab, Schools of

    Psychology and Interactive

    Computing

    Georgia Institute of Technology

    654 Cherry St.

    Atlanta, GA 30332 USA

    [email protected]

    CHI 2010: Work-in-Progress (Spotlight on Posters Days 1 & 2) April 12–13, 2010, Atlanta, GA, USA

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