Comparison of speech-based in-car HMI concepts in a driving simulation study

H. Hofmann, Vanessa Tobisch, U. Ehrlich, A. Berton, Angela Castronovo
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引用次数: 11

Abstract

This paper reports experimental results from a driving simulation study in order to compare different speech-based in-car human-machine interface concepts. The effects of the use of a command-based and a conversational in-car speech dialog system on usability and driver distraction are evaluated. Different graphical user interface concepts have been designed in order to investigate their potential supportive or distracting effects. The results show that only few differences concerning speech dialog quality were found when comparing the speech dialog strategies. The command-based dialog was slightly better accepted than the conversational dialog, which can be attributed to the limited performance of the system's language understanding component. No differences in driver distraction were revealed. Moreover, the study revealed that speech dialog systems without graphical user interface were accepted by participants in the driving environment and that the use of a graphical user interface impaired the driving performance and increased gaze-based distraction. In the driving scenario, the choice of speech dialog strategies does not have a strong influence on usability and no influence on driver distraction. Instead, when designing the graphical user interface of an in-car speech dialog systems, developers should consider reducing the content presented on the display device in order to reduce driver distraction.
基于语音的车载人机界面概念在驾驶仿真研究中的比较
本文报道了一项驾驶仿真研究的实验结果,以比较不同的基于语音的车载人机界面概念。评估了使用基于命令和会话的车内语音对话系统对可用性和驾驶员分心的影响。设计了不同的图形用户界面概念,以调查其潜在的支持或分散效果。结果表明,两种策略在语音对话质量上差异不大。基于命令的对话框比会话对话框更容易被接受,这可以归因于系统语言理解组件的有限性能。司机注意力分散方面没有差异。此外,研究表明,在驾驶环境中,没有图形用户界面的语音对话系统被参与者所接受,而图形用户界面的使用会损害驾驶性能,并增加视线分散。在驾驶场景中,语音对话策略的选择对可用性的影响不大,对驾驶员分心的影响也不大。相反,在设计车载语音对话系统的图形用户界面时,开发人员应该考虑减少显示设备上呈现的内容,以减少驾驶员的分心。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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