Pointing Tasks Using Spatial Audio on Smartphones for People With Vision Impairments
Pointing Tasks Using Spatial Audio on Smartphones for People With Vision Impairments
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DOI：
10.1115/1.4062426
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发表时间：
2024-02-01
影响因子：
3.1
通讯作者：
Krishnamurthy，Vinayak R.
中科院分区：
文献类型：
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作者：
Raina，Abhijeet Singh;Mohanty，Ronak R.;Krishnamurthy，Vinayak R.
我们提出了一项使用智能手机的空间音频反馈的实验研究，以支持视觉障碍人士 (PVI) 的指向任务中的方向定位。我们使用基于弓箭比喻的手机游戏来做到这一点。我们的游戏提供了空间和非空间（声音信标）音频的组合来帮助用户定位目标的方向。我们对视力正常、蒙住眼睛和视力受损的用户进行的实验表明，(a) 在方向定位的初始反应时间内，PVI 的空间音频效果相对于蒙住眼睛的视力用户而言更高，(b) PVI 和蒙住眼睛的个体之间的一般行为在统计上相似，(c) 即使在视力正常的蒙住用户中，空间音频的缺乏也显着降低了定位性能。根据我们的发现，我们讨论了系统和交互设计对 PVI 未来基于移动设备的空间交互的影响。
We present an experimental investigation of spatial audio feedback using smartphones to support direction localization in pointing tasks for people with visual impairments (PVIs). We do this using a mobile game based on a bow-and-arrow metaphor. Our game provides a combination of spatial and non-spatial (sound beacon) audio to help the user locate the direction of the target. Our experiments with sighted, sighted-blindfolded, and visually impaired users show that (a) the efficacy of spatial audio is relatively higher for PVIs than for blindfolded sighted users during the initial reaction time for direction localization, (b) the general behavior between PVIs and blindfolded individuals is statistically similar, and (c) the lack of spatial audio significantly reduces the localization performance even in sighted-blindfolded users. Based on our findings, we discuss the system and interaction design implications for making future mobile-based spatial interactions accessible to PVIs.