ACCESSIBILITY OF SHOOTING TASK FOR BLIND AND VISUALLY IMPAIRED: A SONIFICATION METHOD COMPARISON
Author(s)
Apavou, Florian
Bouchara, Tifanie
Bourdot, Patrick
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Abstract
Access to ordinary sports clubs or video games is limited for
blind and visually impaired people (BVI) which reduces mixed
ability practices and social inclusion. To adapt shooting video
games and sports to BVI, we analyzed the literature to find sonification
methods able to support targeting tasks. We identified four
convenient methods ("Pitch Only", "Tempo & Pitch", "Tempo &
Binary Pitch", "Chroma, Beats & Roughness") outcoming from
other application fields such as medical assistance, navigation, or
photography. To determine the best suitable sonification for shooting
contexts, we carried out a within subject experiment in a 3D
virtual reality environment. 24 sighted participants were asked
to shoot as fast and accurately as possible on invisible targets,
guided by sonic feedback only. With future mixed ability practices
in mind, sighted participant’s performances were also evaluated
through a visual control condition. Results showed that participants
were shooting faster in the visual condition, but more accurately
in the audio-only conditions. "Chroma, Beats & Roughness"
sonification lead to slower aiming time and more mentally
demanding efforts than the three other methods. Analyses finally
suggest that participants preferred to associate both pitch and
tempo. Lastly, future participation of BVI persons will allow to
deepen the results.
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Date
2024-06
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Text
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Proceedings
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Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0)