This research aims to assist users to seek information efficiently while interacting with speech-based information, particularly in multimedia delivery, and reports on an experiment that tested two speech-based designs for communicating multiple speech-based information streams efficiently. In this experiment, a high-rate playback design and a concurrent playback design are investigated. In the high-rate playback design, two speech-based information streams were communicated by doubling the normal playback-rate, and in the concurrent playback design, two speech-based information streams were played concurrently. Comprehension of content in both the designs was also compared with the benchmark set from regular baseline condition. The results showed that the users’ comprehension regarding the main information dropped significantly in the high-rate playback and the concurrent playback designs compared to the baseline condition. However, in answering the questions set from the detailed information, the comprehension was not significantly different in all three designs. It is expected that such equeryfficient communication methods may increase productivity by providing information efficiently while interacting with an interactive multimedia system.

中文翻译：

---

研究高效的基于语音的信息通信：高速率和并发播放设计之间的比较

这项研究旨在帮助用户在与基于语音的信息交互时有效地寻找信息，特别是在多媒体传输中，并报告了一项实验，该实验测试了两种基于语音的设计，以有效地传达多个基于语音的信息流。在本实验中，研究了高速播放设计和并发播放设计。在高速播放设计中，两个基于语音的信息流通过双倍正常播放速率进行通信，而在并发播放设计中，两个基于语音的信息流同时播放。两种设计中的内容理解也与常规基线条件下的基准集进行了比较。结果表明，与基线条件相比，在高速播放和并发播放设计中，用户对主要信息的理解显着下降。然而，在回答从详细信息中设置的问题时，所有三种设计的理解没有显着差异。预期这种高效的通信方法可以通过在与交互式多媒体系统交互的同时有效地提供信息来提高生产力。