Eyes-free multitasking
Eyes-free multitasking
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解放眼睛的多任务处理
DOI：
10.1145/1978942.1979258
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Vazquez-Alvarez Y
中科院分区：
文献类型：
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作者：
Vazquez-Alvarez Y
随着移动的设备功能的增加，用户在移动时执行更多的任务。空间音频接口为裸眼交互提供了解决方案。然而，当支持多个和同时的任务时，这样的接口面临许多挑战，即：1）多个音频流之间的干扰，以及2）认知负荷的约束。我们提出了一个比较研究的空间音频技术评估在一个分开的和选择性的注意任务。播客用于高认知负荷（分散注意力），古典音乐用于低认知负荷（选择性注意力），同时与音频菜单交互。结果表明，当认知负荷保持较低时，空间音频技术是首选，而使用可中断的单一音频流的基线技术则明显不那么受欢迎。相反，当认知负荷增加时，偏好就会逆转。因此，给定适当的任务结构，空间技术提供了一种设计有效的音频接口以支持裸眼移动的多任务处理的手段。
As mobile devices increase in functionality, users perform more tasks when on the move. Spatial audio interfaces offer a solution for eyes-free interaction. However, such interfaces face a number of challenges when supporting multiple and simultaneous tasks, namely: 1) interference amongst multiple audio streams, and 2) the constraints of cognitive load. We present a comparative study of spatial audio techniques evaluated in a divided- and selective-attention task. A podcast was used for high cognitive load (divided-attention) and classical music for low cognitive load (selective-attention), while interacting with an audio menu. Results showed that spatial audio techniques were preferred when cognitive load was kept low, while a baseline technique using an interruptible single audio stream was significantly less preferred. Conversely, when cognitive load was increased the preferences reversed. Thus, given an appropriate task structure, spatial techniques offer a means of designing effective audio interfaces to support eyes-free mobile multitasking.