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Related Experiment Video

Updated: Jun 13, 2026

Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Non-visual exploration of geographic maps: does sonification help?

Franco Delogu1, Massimiliano Palmiero, Stefano Federici

  • 1Department of Psychology, Sapienza University of Rome, Rome, Italy. francodelogu@brain.riken.jp

Disability and Rehabilitation. Assistive Technology
|April 27, 2010
PubMed
Summary

This study shows that sonification effectively provides geo-referenced information to visually impaired users. Participants accurately identified tactile maps after exploring sonified maps, reporting high satisfaction.

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Area of Science:

  • Human-Computer Interaction
  • Accessibility Research
  • Geospatial Information Science

Background:

  • Visual impairments present significant barriers to accessing geospatial information.
  • Sonification offers a potential auditory alternative for data representation.

Purpose of the Study:

  • To evaluate the effectiveness of sonification for delivering geo-referenced information to individuals with visual impairments.
  • To assess user performance and satisfaction with sonified maps.

Main Methods:

  • Thirty-five participants (congenitally blind, acquired blindness, blindfolded sighted) completed four tasks involving sonified maps (tablet/keyboard) and tactile map identification.
  • Participants explored sonified maps and then identified corresponding tactile maps.
  • Self-report questionnaires assessed understanding and satisfaction.

Main Results:

  • High accuracy was achieved in tactile map discrimination tasks across all participant groups and interfaces (tablet/keyboard).
  • No significant performance differences were observed between interface types or participant groups.
  • User reports indicated high satisfaction and understanding of the sonification tools and tasks.

Conclusions:

  • Sonification is an effective method for conveying geo-referenced information to visually impaired users.
  • The choice of interface (tablet or keyboard) did not significantly impact performance.
  • Sonification technology demonstrates high user satisfaction and understanding, enhancing accessibility to spatial data.