The audio abacus: representing numerical values with nonspeech sound for the visually impaired

Authors:
Bruce N. Walker;Jeffrey Lindsay;Justin Godfrey
Affiliations:
Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA
Venue:
Assets '04 Proceedings of the 6th international ACM SIGACCESS conference on Computers and accessibility
Year:
2003

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Abstract

Point estimation is a relatively unexplored facet of sonification. We present a new computer application, the Audio Abacus, designed to transform numbers into tones following the analogy of an abacus. As this is an entirely novel approach to sonifying exact data values, we have begun a systematic line of investigation into the application settings that work most effectively. Results are presented for an initial study. Users were able to perform relatively well with very little practice or training, boding well for this type of display. Further investigations are planned. This could prove to be very useful for visually impaired individuals given the common nature of numerical data in everyday settings.