BlindScanLine

  • Sonification is a promising way for blind and visually impaired people to capture and process information purely auditory, e.g., by mapping distance metrics on sound characteristics. To optimally use the users' sensory bandwidth and cognitive load a sequential scanning at multiple azimuth angles instead of only one measuring point straight ahead could be a suitable option. Thus, we present a preliminary cross-platform implementation and evaluation of such a sequential 'line-scanning sonification' using off-the-shelf components while comparing frequency (FM) and amplitude modulation (AM). In our user study with blindfolded and visually impaired participants, users gained a more accurate mental model in significantly shorter time by means of FM compared to AM and the HoloLens' usability was rated better than our LIDAR prototype's. These initial findings show possibilities for further improvement, so that similar approaches could be used more and better in blind and visually impaired peoples' everyday life.

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Metadaten
Author:Julian Kreimeier, Maximilian Kappe, Timo Götzelmann
DOI:https://doi.org/10.1145/3389189.3393742
Parent Title (English):Proceedings of the 13th ACM International Conference on PErvasive Technologies Related to Assistive Environments
Subtitle (English):preliminary implementation and evaluation of a cross-platform line scanning sonification approach using frequency and amplitude modulation
Publisher:ACM
Place of publication:New York, NY, USA
Document Type:conference proceeding (article)
Language:English
Date of first Publication:2020/06/30
Reviewed:Begutachtet/Reviewed
Release Date:2024/11/28
Article Number:10
Pagenumber:4
First Page:1
Last Page:4
institutes:Fakultät Informatik
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