多重听觉告警信号呈现方法的工效学研究

A Study on Presentation Methods of Multiply Audio Alerting Signals

本实验采用言语可懂度、反应时等多种指标，比较了多重听觉信号呈现方法中重叠法与分离法的作业绩效。共有１６名被试参加了实验。结果证明：在多重听觉信号呈现条件下，与叠加法相比采用分离法作为多重听觉信号的呈现方法有助于对告警话音的语言理解。

There are two usaul presentation methods for multiple audio alerting signals: dichitic presentation and superimposed presentation. In this experiment, the performance of these two kinds of methods were carefully studied and compared. The subjects were 16 university students.Audio alerting signals in the experiment included tone signals and voice signals.Subjects's RT and Speech Intelligibilty were analysed.Major findings were as follows:(1)The performance of low frequecy of alerting tone (500hz) was better than those of medium and high frequency of alerting tone(1000hz and 1600hz).(2)The performance of dichitic presentation was better than that of superimposed presentation. Dichitic presentation was benifit to understanding voice signals. This study provided experimental evidence for the presentation method design of multiply audio alerting signals.