Design and Evaluation of an Auditory Glance at Algebra for Blind Readers

R D Stevens, S A Brewster, P C Wright, A D N Edwards, G Kramer (Editor)

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    An overview or glance is important in planning the reading process. Such a highlevel view is not possible for a blind person when reading by listening. This paper describes the sonification of algebra notation to provide an audio glance to facilitate planning prior to reading. Prosodic cues used in spoken algebra were combined with pre-existing guidelines for earcon design to produce a high-level view of expression structure called algebra earcons. The initial evaluation indicated listeners could recover syntactic information from an algebra earcon and pick an appropriate expression. Some defficiencies were revealed, that were amended and then retested in a second experiment showing an improvement in recognition of syntactic features. Analysis of verbal protocols revealed the level of syntactic information the listeners could retain and recall, and also the strategies used.
    Original languageEnglish
    Title of host publicationAuditory Display: The Proceedings of the Second International Conference on Auditory Display.
    EditorsG Kramer
    Publication statusPublished - 1994


    • Audio glance
    • Sonication of algebra
    • Earcons
    • Visually disabled readers


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